OPERATORS MANUAL
This manual provides
Installation & Operating instructions for
VENTILATION
SYSTEMS
NOTIFY CARRIER OF DAMAGE AT ONCE.
It is the responsibility of the consignee to inspect the
container upon receipt of same and to determine
the possibility of any damage, including concealed
damage. Avtec suggests that if you are suspicious
of damage to make a notation on the delivery re-
ceipt. It will be the responsibility of the consignee to
file a claim with the carrier. We recommend that you
do so at once.
Manufacture Service/Questions 888-994-7636.
Information contained in this document is known to be
current and accurate at the time of printing/creation.
Unified Brands recommends referencing our product line
websites, unifiedbrands.net, for the most updated product
information and specifications.
1055 Mendell Davis Drive
Jackson, MS 39272
888-994-7636, fax 888-864-7636
avtecind.com
P/N OMANUAL_VMR-09/06
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VII. VENTILATOR FEATURES AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Baffle Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Modular Grease Extractors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Auto Wash Grease Extractors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. Air Adjustment Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E. Fire Dampers . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. .. . . . . . . .. .. .
F. Air Make-Up [Supply] Plenums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .
G. Auto Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H. Cold Water Mist [Optional] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I. Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
18
18
19
19
20
20
21
21
21
VIII. PERIODIC MAINTENANCE . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Baffle Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Modular Grease Extractors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Grease Trough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. Grease Collection Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E. Hood Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. Detergent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G. Fusible Link Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
21
21
21
22
22
22
22
IX. PARTS LIST
A. PAWS Panel - Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. VCW Panel - Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. PAWS/VCW Panel - Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. EVAC Detergent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E. Electro-Mechanical Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. Fusible Link Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G. Hood Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
23
23
24
24
25
25
X. OTHER DATA AND DRAWINGS
A. EVAC Cleaner Cut Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Air Movement Recordings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Calculating and Recording Air Movement Readings . . . . . . . . . . . . . . . . . . . . . .
D. Calculating and Recording Air Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27
28
29
30
XI. WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
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canopy contains an integral grease trough and
grease collection receptacle(s). Surface, plenum
and duct collar fire extinguishing systems are
1I. TYPES OF SYSTEMS
This manual covers three [3] of the basic types of
systems offered by AVTEC - Baffle Filter [AF],
Modular Grease Extractor [AX] and Auto Wash
Down [AW].
A.Baffle Filter [AF Series] [See fig. #1]
Model AF ventilators are listed by Underwriters
Laboratories Inc. [UL] and are built in accordance
with the National Fire Protection Association
[NFPA] Standard No. 96 for use with UL Listed
fire extinguishing systems for duct hood
protection. They are available with or without an
automatic exhaust fire damper. They utilize UL
Classified removable baffle filters to extract
grease and provide a limited fire barrier. The
canopy contains an integral grease trough and
removable grease receptacle(s).
Surface,
plenum and duct collar fire extinguishing systems
may be factory supplied.
required and may be factory supplied.
Vent Control Panels may be supplied with these
systems. See additional wiring diagrams for
options.
Vent control panels may be supplied with these
systems.
options.
See additional wiring diagrams for
Installation shall be in accordance with NFPA 96.
C.Auto Wash Down [AW Series] Energy Aire [see
fig. #3]
Model AW ventilators are listed by UL and built in
accordance with NFPA Standard No. 96 for use
with UL Listed fire extinguishing systems for duct
and hood protection. They are available with or
without an automatic exhaust fire damper.
Installation shall be in accordance with NFPA 96.
B.Modular Grease Extractors [AX Series] Energy
Aire [see fig. #2]
Model AX ventilators are listed by UL and built in
accordance with NFPA Standard No. 96 for use
with UL Listed fire extinguishing systems for duct
and hood protection. They are available with or
without an automatic exhaust fire damper.
These models utilize high velocity removable
grease extractors. This exclusive design extracts
up to 95%* of airborne grease contaminants. The
These systems utilize a high velocity grease
extractor. This exclusive design extracts up to
1 *Data from independent tests not a part of UL test
procedure.
95%* of airborne grease contaminants.
An
1
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integral water wash system cleans the inside of
the grease extraction chamber either by manual
activation of the Wash Start button or by a
programmable timer. The duration of the wash is
electrically controlled. The wash system is also
activated by an electrical thermostat or a manual
switch in the event of a fire condition. A surface
fire extinguishing system is required and may be
factory supplied.
Wet Chemical and Water Mist. Wet Chemical
Systems may be all or partially factory installed
[by the Fire System Manufacturer]; final hook up
and certification at job site is done by the Fire
System Manufacturer's local representative.
These systems must be periodially inspected,
and critical parts replaced. It is suggested that a
service contract be purchased from the local
representative. For further details refer to the
manufacturer's technical manual.
Auto Wash control panels are provided with these
systems. Wiring diagrams are provided with this
manual.
AVTEC manufactures and installs a water mist
fire extinguishing system, "MIST-A-FIRE", that
connects to the building fire sprinkler system
[must be "wet" type system]. Final connect of this
system must be done in the field by the sprinkler
Installation shall be in accordance with NFPA 96.
D.Airflow Requirements
contractor
certification/inspection report is done by an
authorized AVTEC representative. Periodic
inspection is generally required, but replacement
of parts and periodic maintenance is virtually
or
authorized plumber.
A
Minimum exhaust airflow requirements and
maximum make-up airflow requirements [where
air is introduced directly inside the canopy] are
shown on the chart below. These flow rates were
established under laboratory conditions. Greater
exhaust airflows and/or reduced make-up airflows
may be required for complete capture.
eliminated.
For further details, refer to the
AVTEC MIST-A-FIRE Installation and Operating
Technical Manual.
CFM REQUIREMENTS
II. INSTALLING THE VENTILATOR
400°F Cooking
Surface Equip.
200
600°F Cooking
Surface Equip.
300
700°F Cooking
Surface Equip.
525
Model No.
AFWO,AFBO
AFDO,AFWP
AFBP,AFDP
AFWE,AFDE
AFBE
The ventilator is supplied with brackets to facilitate
the attachment of hanger rods to the vent. Hanger
rods should be attached to all brackets to ensure
proper support.
AFWI,AFBI
AFDI,AFWD
AFBD,AFDD
AFIO,AFIP
AFIE
250[175]
250
N/R
400
N/R
600
A.Ascertain that the ceiling/roof structure is strong
enough to support the weight of the hood and
support system. The approximate weight of the
hood is shown below:
AFII,AFID
300[150]
200
N/R
275
N/R
525
AXWO,AXBO
AXDO,AXWP
AXBP,AXDP
AXWE,AXDE
AXBE
45 lbs/linear ft. for hoods w/o AMU plenums.
55 lbs/linear ft. for hoods w/AMU plenums.
125 lbs for fire control cabinet.
AXWI,AXBI
AXDI,AXWD
AXBD,AXDD
AXIO,AXIP
AXII
AWWO,AWWP
AWWE,AWDO
AWDP,AWDE
AWBO,AWBP
AWBE
AWWI,AWBI
AWDI,AWWD
AWBD,AWDD
AWTE,AWTP
AWTO
250[175]
N/R
N/R
B.Carefully uncrate the hood so as not to dent or
scratch the outer surface.
250
300[150]
194
400
N/R
270
600
N/R
*525
C.Position the hood on the floor in approximately
its final installed location.
D.Use 1/2" threaded rods to hang the hood. The
hanger rods should be approximately 1/2" closer
to the wall at the structural attachment location
than at the top of the hood. [see fig. #4] This
ensures that the hood is held tightly against the
wall.
250[190]
400
270[146]
420
N/R
N/R
N/R = Not Recommended
*=Manufacturer's test results not yet submitted to U.L. for capture tests.
Note! Do not remove Support Brace until Ventilator
installation is complete. Upon completion of
installation, dispose of Support Brace and replace the
Acorn Nuts to their original locations.
E.Fire Extinguishing Systems
There are two basic types of ventilator fire
extinguishing systems in use today:
2
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H. Install bulbs in the light fixture[s].
I.Install the grease filters [AF] or modules [AX].
J.Install the grease receptacles [AF or AX]
NOTE: A minimum of a three inch [3"] insulated
fire barrier and air space must be maintained
between the capture area skin of the ventilator
and any combustible surface, including wall and
ceiling. AVTEC ventilators normally have a 3" air
space; insulation is added when specified.
Fig 4
III.CONTROL PANEL [if provided]
E.The hood should be hung so that the bottom of the
hood is 6'-6" above the finished floor unless otherwise
specified. Carefully lift the hood into position being
certain to avoid scratching the finished surfaces.
Install 1/2" threaded rod from each bracket and the
structural support. Secure rods with heavy duty nuts.
[see fig. #5] Be sure that the hood is level.
Control panels are provided with all auto wash type
ventilators [Models AW- ] and are optional with the
baffle filter type [AF- ] and modular grease
extractor type [AX- ]. Control panels with Models
AF- and AX- do not have the auto wash plumbing
assembly compartments. Any control panel may
be provided with
a
integral MIST-A- FIRE
Extinguishing System alarm panel and sprinkler
assembly piping; refer to the MIST-A-FIRE
technical manual.
A.Wall Attachment
Control panel dimensions and connection detail
are shown on the enclosed shop drawing.
Panels may be surface mounted, partially
recessed or fully recessed as shown on fig. 6.
1.Surface Mounted
Drill four [4] holes in ventilator plumbing
compartment as required. Be careful not to
damage any components. Avoid drilling into
electrical compartments. Bolt to wall with
anchor bolts or other acceptable means.
Weight of control panel varies from 90 lbs. to
200 lbs.
Fig 5
Tower Interface Detail
Place trim collar on tower. Position tower under hood.
Fully tighten trim collar retainer hardware after tower
and hood are aligned properly. See fig. A, B, and C
(next page).
2.Recessed
Cut hole in wall 1/2" greater than O/A
dimensions of control box [shown on shop
drawing]. Spacers or support angles may be
necessary to provide proper support. It is
recommended that panel be bolted to wall
similar to method used for surface mounted
above.
F.The entire exhaust duct system must be con-
tinuously welded. This includes the connection
to the duct collar and the roof curb. All welds
must be liquid tight.
NOTE: Welds must not impede operation of
damper.
G.Connect the lights to the circuit breaker panel
through the light switch. All connections should
be in compliance with NFPA 70, National Electric
Code [NEC].
3
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4
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IV. ELECTRICAL CONNECTIONS
1.Typical Field Connections for the PAWS
Control Panel are shown on [figs. 10, 11, and
12]. Note that all options and connections may
not be included on your system.
A.VCW Control Panel [Refer to fig. 7]
1.Typical field connection terminals for VCW
Control Panel are shown in fig. 7. For custom
features such as sequential wash, time delay,
etc. refer to AVTEC shop drawing in back of
this manual.
2.Terminal Block #1 [TB-1] has three [3]
terminals and is located on the right-hand side of
the Input/Output [I/O] Board. Terminal #1
[uppermost] is for the Hot lead of the power
supply and is protected by a fuse located within
the panel. Terminal #2 [center] is for the Neutral
lead of the power supply. Terminal #3
2.Terminals No. 1 and No. 2 are for the
120vac Power Supply. Terminal No. 1 is Hot
and Terminal No. 2 is Neutral.
3.Terminals No. 3 and No. 4 are 120vac
power for the Water Solenoid and Detergent
Pump. These terminals are "hot" whenever
the Water Wash Solenoid and the Detergent
Pump is scheduled to be "ON" or when there
is a fire condition. Terminal No. 5 provides
power for a pump/prime switch with a
momentary closed/normally open contact.
This switch is helpful in checking the
performance of the pump as well as in
priming the pump.
[lowermost] is used to ground the Input/Output
Board to the Control Panel Housing.
Terminal No. 4 is Hot and Terminals No. 2 & 3
are Neutral.
3.Terminals No. 3 and No. 6 carry 120vac
whenever the fans are scheduled to be ON.
They are used to activate the fan contactor[s]. In
the event of a fire situation, power is removed
from Terminal 5 which provides power for
Terminal No. 6. Terminal No. 6 is the Hot lead
B.Programmable Automatic Wash Sequence
[PAWS] Control Panel
and
Terminal
No.
3
is
Neutral.
Fig. 7
5
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4.Terminal Block #2 [TB-2] has three [3] pairs of
terminals and is located at the upper right corner
of the Input/Output Board. The first pair of
terminals are for the number one wash valve
solenoid. This will be the only wash output
active in a P-10-__ or P-15-__ Control Panel.
The second pair of terminals are for the number
two wash valve solenoid. The third pair of
terminals are for the number three wash valve
solenoid.
5.Terminal Block #3 [TB-3] has three [3] pairs of
terminals. It will not be present on P-10-__ or P-
15-__ Control Panels. The first pair of terminals
are for wash valve solenoid number four. The
second pair of terminals are for the number five
wash valve solenoid. The third pair of terminals
are for the number six wash valve solenoid.
6.Terminal Block #4 [TB-4] has three [3] pairs of
terminals. It will not be present on P-10-__ or P-
15-__ Control Panels. The first pair of terminals
are for the number seven wash valve solenoid.
The second pair of terminals are for the number
eight wash valve solenoid.
Fig 8a
7.Terminal Block #5 [TB-5] has three [3] pairs of
terminals. The first pair provides power for the
detergent pump. The second pair provides
power for the PAWS Alarm/Trouble horn. [The
third pair provides power for the vent fan
contactors. [see figs. #8a & 8b]
Note that the maximum output is one-and-one-
half [1-1/2] amperes. If the total inrush current
for all contactors will exceed this limit, an
intermediate relay must be used.
8.Terminal Block #9 [TB-9] has three [3] pairs of
terminals and is located at the lower left corner of
the Input/Output Board.
The first pair of
terminals are for connection to the optional
supervised shut-off valve. If the panel is not
equipped with this option, a jumper wire must be
installed. The second pair of terminals are for
connection to the Manual Fire Switch. The third
pair of terminals are for connection to the
automatic fire switch contacts terminals are for
connection to the automatic fire switch contacts.
Fig 8b
6
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9.Terminal Block #11 [TB-11] has three [3] pairs of
terminals. The first pair of terminals are low voltage
connections for the detergent low level probe. The
probe should be installed in the detergent container
so that it does not protrude above the top of the
detergent pump inlet strainer. [fig. #9] This is
intended to prevent cavitation of the pump and will
advise when the tank needs to be refilled. The probe
rods may be cut to facilitate a neat and effective
installation.
Fig 9
10.Terminal Block #12 [TB-12] has three [3] pairs
of terminals. The first pair of terminals are for
connection to the optional battery.
7
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Terminal Block Designation
[For authorized sevice techinician use only]
B. PAWS Control Panel
TB-1
1-Line Hot
2-Line Neutral
Incoming Power Supply 120vac, 15 amps, 60 Hz
3-Mech. Ground
1-Switched Hot
2-Neutral
3-Switched Hot
4-Neutral
5-Switched Hot
6-Neutral
1-Switched Hot
2-Neutral
3-Switched Hot
4-Neutral
5-Switched Hot
6-Neutral
1-Switched Hot
2-Neutral
3-Switched Hot
4-Neutral
1-Switched Hot
2-Neutral
3-Switched Hot
4-Neutral
5-Switched Hot
6-Neutral
1-Switched Hot
2-Neutral
*3-Switched Hot
*4-Neutral
5-Neutral
6-Hot
*1-NC
TB-2
Wash Solenoid #1, 120vac, 1.5 amps max
Wash Solenoid #2, 120vac, 1.5amps max
Wash Solenoid #3, 120vac, 1.5amps max
Wash Solenoid #4 120vac, 1.5amps max
Wash Solenoid #5 120vac, 1.5amps max
Wash Solenoid #6 120vac, 1.5amps max
Wash Solenoid #7 120vac, 1.5amps max
Wash Solenoid #8 120vac, 1.5amps max
Detergent Pump, 120vac, 1.5apms max
PAWS Alarm Horn, 120vac, 1.5amps max
Fan Contractor, 120vac, 1.5amps max
Spare Output [PAW] 120vac 1.5amps max
TB-3
TB-4
TB-5
TB-6
TB-7
TB-8
TB-9
TB-10
Spare Output [MAF II] 120vac, 1.5amps max
Auxillary
Power Tap
120vac, 120amps max
*2-C
*3-NO
*4-NC
*5-C
*6-NO
*1-NC
*2-C
*3-NO
Trouble Dry Contacts [MAF II] 1.5amps @ 28vdc/120vac
Trouble Dry Contacts [MAF II] 1.5amps @ 28vdc/120vac
Fire Dry Contacts [MAF II] 1.5amps @ 28vdc/120vac
Fire Dry Contacts [MAF II] 1.5amps @ 28vdc/120vac
*4-NC
*5-C
*6-NO
1-Line Hot
2-Switched Hot
3-Line Hot
4-Switched Hot
5-Line Hot
6-Switched Hot
*1-Line Hot
*2-Switched Hot
*3-Line Hot
*4-Switched Hot
*5-Line Hot
*6-Switched Hot
1-Detergent
2-Probe
PAWS Supervised
Valve Switch
PAWS Manual
Fire Pull Switch
PAWS Automatic
Fire Switch
MAF II Water
Flow Switch
MAF II Water
Pressure Switch
]
|
|
|
120vac, 25 milliamps
12vdc, 25 milliamps
|
]
]
|
|
|
MAF II Supervised |
Valve Switch
]
TB-11
TB-12
20vdc, 2 milliamps
*3-Positve
*4-Negative
1-Positve
MAF II Horn, 12vdc, 1.5amps
2-Negative
3-Positve
Battery, 12v, 5A Hours
Auxillary
4-Negative
Power Tap
*See “Mist-A-Fire Technical Manual” (fig. 10)
8
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C.Dampers & Detectors [AW & optional AX
Models] [Fig. 13]
Terminal block in the damper housing is pre-
wired to a junction box above. The wires are
colorcoded; refer to field interconnection wiring
diagram. [Refer to enclosed control panel wiring
C.Drain[s]
diagram].
between damper housings.
Interconnection may be required
The drain pipe is connected at one or both ends
of the ventilator and run to an air gap assembly,
hub & funnel or open floor drain to act as an
anti-siphoning device. An air gap assembly is
recommended for the most sanitary and positive
connection. The air gap should be the same
size on the inlet end and one pipe size larger on
the outlet to avoid splash over.
D. Field Joints
Interconnection between field joints on AW
Hood attach with 2” elbows and expandable
coupler. [Refer to fig. 11]
Error! Not a valid link.
Fig. 11
E.Detergent Pump and Tank
Detergent pump tubing [plastic, copper or
stainless steel] must be provided from the
detergent pump outlet to an injection point
between the vacuum breaker/check valve and
Fig. 13
D.Ventilator Lights
the ventilator inlet.
multiple pumps are used.
For larger installations
Normally the
A 120vac supply circuit must be supplied thru a
ventilator light switch to the ventilator. The light
switch may be supplied by AVTEC in the control
panel or on the hood. Interconnection may be
required between light fixtures.
detergent pump and tank are located in the
control panel, and tubing from the detergent
pump to the detergent tank is factory connected.
In the application when the detergent pump and
tank are located in a remote area, tubing is
provided for connection from the pump to the
tank.
V.PLUMBING CONNECTIONS
[AW Models] [Refer to fig. 14]
The connections listed below are shown on page
8.
Pumps may be pre-wired in control panel or
Energy Distribution System, or located remotely.
Detergent tank must always be located within 5
ft. of the pump.
A.Hot Water Wash
140o hot water is needed to properly clean the
extractor chamber. Supply is connected to the
control panel inlet. Control panel outlet is
connected to the ventilator inlet[s].
F.Interconnecting
Depending on specifications, some ventilator
sections may require interconnection of hot
water, cold water or drains. See shop drawing
in back of this manual for detail.
NOTE: A vacuum breaker and check valve must
be installed at least 6" above the ventilator inlet
to prevent back-up of detergent water into fresh
water supply.
B.Cold Water Mist [Optional]
Cold water supply is connected to the control
panel inlet. Control panel outlet is connected to
the ventilator inlet[s].
9
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VI. OPERATION
A. VCW Control Panel [Refer to fig. 16]
1.Adjustment
will continue to time down. For example, if the
fire were to occur after 5 minutes of a 30
minute time-delay period and lasted for 15
minutes before the fire switch [manual] or
thermoswitch [auto] was activated, then the
fan[s] would come on for 10 minutes, then shut
OFF.
The component layout is shown below. The
only adjustment necessary is for the auto wash
timer relay. Refer to Sec. VII. G, page 18 for
function explanation. Normally three minutes is
used for ovens, steam equipment and light duty
ranges, and five minutes is used for fryers,
griddles, etc. A longer wash may be required
for charbroilers.
3.Trouble- Shooting [VCW]
a.Fans won't activate when start button is
pushed.
1.Check the wiring to the fan contactor and
verify that it is wired according to the
VCW panel schematic.
2.Check the inter-wiring between the VCW
panel
and
the
electro-mechanical
dampers located on the ventilator hoods.
If the wiring is correct proceed to step c.
3.Check terminals No. 1 and No. 2 with a
voltmeter. 120vac should be present at
all times. If voltage is present, proceed
to step 6.
4.No voltage present. Check wiring to
ensure terminals No. 1 and No. 2 have
been connected to a proper 120vac
power source.
5.Check that all related fuses are intact and
that the circuit breaker in main circuit
breaker panel is "ON".
6.Check the fire switch pull station
[optional] for proper wiring and also
check that it is properly closed and
latched.
7.Check the dampers on all interconnected
ventilator hoods for a fire condition.
8.In a normal condition damper terminals A
& C will have 120vac. In a fire condition
terminals B & C will have 120vac.
2.Sequence Of Operation
Press "START" Button to turn fan[s] ON. When
the time comes to shut down the fan[s] [either
at the end of the day or the end of the cooking
period] press the "STOP" Button. If the system
is equipped with auto wash, the fans will shut
OFF and the auto wash and detergent pump
will come ON. At the end of the Wash Cycle,
the auto wash solenoid closes.
a.If terminals B & C have 120vac fans will
not operate. Voltage present at these
terminals
thermoswitches in the duct have
closed. These thermoswitches
indicates
that
the
automatically reset after cooling to a
temperature below 300oF.
If the fans are OFF you can advance directly to
the Auto Wash [Time-Delay] Period by pressing
the "STOP" Button.
If the thermoswitch does not reset after
cooling, replace it with
thermoswitch.
a
new
In the event of a fire condition, the fans will shut
OFF [if they were ON] and the Auto Wash will
come ON [if the unit is so equipped]. The unit
will remain in this condition until the
thermoswitch resets itself and then the panel
will return to its mode of operation before the
fire condition occurred.
b.Check for 120vac at terminals No. 2 &
No. 5. This voltage should be present
at all times.
If voltage is present
proceed to step 8c. If voltage is not
present refer to step 8.a as listed
above.
c.While pushing the "START" Button,
terminals No. 3 and No. 7 will have 120
NOTE: If a fire condition occurs during the
timed auto wash/time-delay period, the timers
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vac as long as the "START" Button is
depressed.
4.Check all the dampers on the ventilator to
verify that none of the dampers have
been activated into the fire condition.
5.Check condition of solenoid for damage
or debris.
d.Once the "Start" Button is released,
power[120vac] will be present at
terminals No. 2 & No. 6. If no power is
present after releasing start button
verify that the fan contactor has been
wired as shown on VCW Panel
Electrical Schematic.
d.Solenoid coil activates but no water flow is
present.
1.Check water pressure gauge. If water
pressure of 25 psig or more is present
proceed to steps 2 & 3. If no water
pressure is present proceed to steps 4 &
5.
2.Check solenoid valve for damage or
debris.
3.Check for water line blockage and verify
all spray nozzles are clear.
e.Voltage present at terminals No. 2 &
No. 6 after pushing "START" Button,
fans won't operate.
This condition
indicates that the control wiring is
operating properly, therefore the
problem must be in the fan motor itself
or the power supply wiring to fan thru
the normally open contactor or the fan
contactor.
4.Check all water supply valves to verify
they are open.
5.Check and clean all line wye strainers.
b.Auto Wash Solenoid does not open.
1.Check that fuse is intact.
2.Check terminals No. 1 and No. 2 with volt
meter.
a.If 120vac proceed to step 2d.
b.If no voltage, check fuse and wiring to
panel.
c.Check panel circuit breaker and verify
that it is "ON",
d.Press "Stop" button in completely and
hold for one [1] full second.
e.Check terminals No. 3 and No. 4 with
volt meter.
i.If 120vac is present, check wiring to
water solenoid. Check voltage at
solenoid coil. If 120vac is present,
replace coil. If no voltage, refer to
step 2.b.
ii.Check the timer relay inside the VCW
Panel to verify that power is going thru
the contacts and that the coil is
engaging. If relay doesn't function
properly, replace the relay, If relay
functions properly proceed to step 4.
iii.Check wiring against schematic to
verify that is correct. Check condition
of wires and connections to verify that
they are not loose or damaged.
c. Auto Wash Solenoid will not close.
1.Check terminals No. 3 & No. 4 for voltage
B. PAWS Control Panel [Refer to fig. 17]
1. Manual Operation
[120vac].
If no voltage is present
The Programmable Automatic Wash Sequence
[PAWS] Panel is designed to control the
operation of the ventilator exhaust and air
make-up fans and wash the grease extraction
plenum with a hot water/detergent solution.
The fan operation and wash sequence can be
proceed to step e.
2.Check the wiring to the fire switch pull
station to see that it has been wired to
the correct contacts.
3.Check the fire switch pull station
[optional] to verify it has not been pulled.
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started and stopped manually or programmed
or automatic operation.
silenced by pressing the "VFC Horn Silence"
switch, but the trouble condition will continue to
be displayed. The fan will operate normally,
hot water will not flow during the wash cycle
and the display will continue to flash "PLENUM
WASH AND FIRE CYCLES LOST". When the
valve is opened, the alarm condition will
automatically clear itself. In the event that the
detergent level drops below the probe and the
optional supervised valve is closed at the same
time, the horn will sound and the display will
alternate between "DETERGENT LOW" and
"PLENUM WASH AND FIRE CYCLES LOST".
The horn can be silenced by pressing the "VFC
Horn Silence " switch.
a. Fan Start
The exhaust and air make-up fans can be
started manually by pressing "FAN ON/WASH
OFF" on the PAWS panel. If the wash cycle is
in progress it will stop immediately and the fans
will start. The PAWS display will indicate "FAN
ON/WASH OFF".
b. Fan Stop
The exhaust and air make-up fans can be
stopped
manually
by
pressing
"FAN
OFF/WASH OFF" on the PAWS panel. The
fans will stop immediately. The PAWS display
will indicate "FAN OFF/WASH OFF".
3. Hood Plenum Fire Protection
a. Automatic Operation
In the event of a fire in and/or under the
ventilator, the fans will turn off and the plenum
wash will be activated when the temperature at
the duct collar exceeds 300°F. The display will
read "AUTO FIRE CYCLE FAN OFF/WASH
ON" and the PAWS panel alarm will sound.
The alarm cannot be silenced. When the
temperature at the duct collar drops below 300
°F, the PAWS panel will enter the fire delay
cycle. During the fire delay cycle the fan will
remain off and the hood plenum wash will
remain on for a programmable period of time
then automatically return to normal operation.
The fire delay cycle can be terminated by
pressing "FAN OFF/WASH OFF" on the PAWS
panel. [See Sec. 4.b.2.c for setting Fire Delay
Cycle Duration].
c. Wash Start
The wash cycle can be started manually by
pressing "FAN OFF/WASH ON'' on the PAWS
panel. If the fans are on, they will stop
immediately. The display will indicate "WASH
1" and the total time [in hours and minutes]
remaining until the wash cycle ends.
d. Wash Stop
The wash cycle can be stopped manually by
pressing "FAN OFF/WASH OFF" on the PAWS
panel. The wash cycle will stop immediately.
The PAWS display will read "FAN OFF/WASH
OFF".
2. Trouble Conditions
a. Low Detergent Indicator
If the detergent level drops below the bottom of
the detergent probe, the PAWS panel horn will
sound and the display will flash "DETERGENT
LOW". The horn can be silenced by pressing
the "VFC Horn Silence" switch, but the trouble
condition will continue to be displayed. The
detergent pump will not operate until the
detergent tank is refilled. The fan and wash
cycles will continue to operate normally,
however, the display will continue to flash
"LOW DETERGENT". When the detergent
tank is refilled, the trouble condition will
automatically clear itself after approximately 10
seconds.
b. Manual Operation
The PAWS panel may be equipped with the
optional "Manual Fire Switch". Pulling the
"Manual Fire Switch" will turn on the exhaust
fan(s) and activate the plenum hood wash to
act as a fire barrier. The display will read
"MAN'L FIRE CYCLE FAN ON/WASH ON" and
the PAWS panel alarm will sound. The alarm
cannot be silenced. After the "Manual Fire
Switch" is reset, the PAWS panel will enter the
fire delay cycle. During the fire delay cycle the
exhaust fan will remain on for a programmable
period of time then automatically return to
normal operation. The fire delay cycle can be
terminated by pressing "FAN OFF/WASH OFF"
on the PAWS panel. [See Sec. 4.3 for setting
Fire Delay Cycle duration].
b. Supervised Water Valve [optional]
If your PAWS panel is equipped with the
optional supervised valve, the PAWS panel
horn will sound and the display will flash
"PLENUM WASH AND FIRE CYCLES LOST"
when the valve is closed. The horn can be
4. Programming Instructions [Refer to fig. 17A
& 17B]
a. Setting the Clock
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The PAWS Control Panel is equipped with an
integral clock which can be used to
automatically operate the fan and wash cycles.
To set the time press "RETURN CLOCK" once.
The display will read "SET DAY AND TIME
SELECTED" and then change to "SET DAY
AND TIME" as well as the day and time. Press
"CHANGE CLEAR" and the day and time will
begin to flash. Press "DAY+" and/or "DAY-" to
set the correct day. Press "HOUR+" and/or
"HOUR-" to set the correct hour. Note if "AM"
or "PM" is displayed correctly. Press
"MINUTE+" and/or "MINUTE-" to set the
correct minutes. When you are satisfied that
the day and time are correctly displayed, press
"SAVE ENTER". The display changes to the
Normal Display. If no key is pressed for thirty
[30] seconds, the display will automatically
return to Normal Display.
As many as eight [8] hood sections can be
programmed to wash in sequence. [The total
number of washes and outputs is determined
prior to shipment and set at the factory]. Each
section can be programmed to wash for a
different period of time, up to fifteen [15]
minutes per section.
There are also up to eight [8] recovery periods
which can be programmed for different
durations from zero [0] minutes up to two [2]
hours per segment. The recovery periods can
be used to allow the water heater to recover
between wash segments in installations with a
limited hot water supply. It can also be used in
installations which require that the fans
automatically turn on for a period of time after
the final wash period.
To review PAWS, press "PAWS". The display
will indicate "PAWS MODE SELECTED" for
about three [3] seconds then change to indicate
the total PAWS duration [PAWS and recovery
periods] in hours and minutes, and the duration
of the first wash period in minutes. Press
"NEXT" to display the duration of the first
recovery period. Continue to press "NEXT" to
review the remaining wash and recovery
segments.
b. Setting the PAWS
1. Single Wash Models [P-10__ & P-15__]
The wash can be programmed to run for up to
fifteen [15] minutes. It is followed by a recovery
period of from zero [0] minutes up to two [2]
hours. This period can be used in installations
which require that the fans automatically turn
on for a period of time after the wash cycle is
complete.
To change the duration of a wash or recovery
segment, press "NEXT" or "LAST" until the
appropriate segment is displayed, then press
"CHANGE CLEAR". When the display flashes,
press "MINUTE+" or "MINUTE-" until the
desired duration is displayed, then press
"SAVE ENTER" to retain that time. The total
PAWS duration is automatically updated.
To change additional segments, repeat the
above procedure.
To review the PAWS, press "PAWS". The
display
will
indicate
"PAWS
MODE
SELECTED" for about three [3] seconds then
change to indicate the total PAWS duration
[wash and recovery periods] in hours and
minutes, and the duration of the wash period in
minutes. Press "NEXT" to display the duration
of the recovery period. Press "NEXT" to
display the duration of the fire delay cycle.
To change the duration of a segment, press
"NEXT" or "LAST" until the appropriate
segment is displayed, then press "CHANGE
CLEAR". When the display flashes, press
"MINUTE+" or "MINUTE-" until the duration is
displayed, then press "SAVE ENTER" to retain
When all segments have been set, press
"RETURN CLOCK" to return to Normal Display.
If no key is pressed for thirty [30] seconds, the
panel will automatically return to Normal
Display.
that time.
automatically updated.
The total PAWS duration is
c. Setting The Fire Delay
To change the duration of the fire delay cycle
press "PAWS" to enter the PAWS Review
mode. Press "NEXT" to review all of the
To change the duration of an additional
segment, repeat the above procedure.
When all segments have been set, press
"RETURN CLOCK" to return to Normal Display.
If no key is pressed for thirty [30] seconds, the
panel will automatically return to Normal
Display.
PAWS segments.
After the final PAWS
segment, press "NEXT" again and the display
will read "FIRE DELAY" and its duration. Press
"CHANGE CLEAR" and the display will begin to
flash. Press "MINUTE+" and/or "MINUTE-"
until the correct duration is displayed. Press
2. Multi-Wash Models [P-20-__ & P-25-___]
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"SAVE ENTER" to retain that time. Press
"RETURN CLOCK" to return to Normal Display.
"RETURN CLOCK" to return to Normal Display.
If no key is pressed for thirty [30] seconds, the
display will automatically return for Normal
Display.
d. Reviewing The Daily Event Schedule
The Daily Event Schedule is a program which
will automatically turn the fans on and off
and/or initiate the PAWS up to four [4] times
each day. Each day may be different from
another or it may be programmed to stay off for
the entire day. To review the Daily Event
Schedule, press "CHECK". The display will
show "CHECK MODE SELECTED" and then
indicate the first programmed event of that day.
If there are no events programmed for that day,
it will display the next programmed event. If
there are entries in the Daily Event Schedule,
press "NEXT" to see the next event and/or
press "LAST" to see the previous event. Press
"RETURN CLOCK" to return to Normal Display.
If no key is pressed for thirty [30] seconds the
display will automatically change to Normal
Display.
To program Daily Event Schedules for
additional days, particularly if they are different
from the schedule already programmed, repeat
the previous steps.
f. Repeating The Daily Event Schedule
If you wish to repeat the Daily Event Schedule
from one day to another, press "REPEAT
DAY". The display will show "REPEAT MODE
SELECTED", then ask which day's Daily Event
Schedule is to be repeated.
Select the
intended day by pressing "DAY+" and/or "DAY-
". When the proper day is displayed, press
"SAVE ENTER". The display will then ask on
which day that Daily Event Schedule is to be
repeated. Press "DAY+" and/or "DAY-" until
the proper day is displayed, then press "SAVE
ENTER". The display will acknowledge that the
schedule has been copied, then return to the
starting Repeat Day display. Continue as
outlined above to repeat additional Daily Event
Schedules.
e. Changing The Daily Event Schedule
In order to make initial entires in the Daily
Event Schedule or change existing entries,
press "PROGRAM DAY". The display will
show "PROGRAM MODE SELECTED" then
ask which day's events are to be changed.
Press "DAY+" and/or "DAY-" to select the
desired day, then press "SAVE ENTER". If no
events are programmed to occur that day, the
display will indicate "FAN ON UNPROG". If
events are programmed for the day selected,
that day's first event will be displayed. If an
event other than the one being displayed is to
be entered or changed, press "NEXT" until the
correct event is displayed. Press "CHANGE
CLEAR".
NOTE: IF
A
DAY HAS ALREADY BEEN
PROGRAMMED FOR A DAILY EVENT SCHEDULE,
THE ORIGINAL WILL BE ERASED AND
REPLACED BY THE REPEAT SCHEDULE.
When you are finished repeating Daily Event
Schedules, press "RETURN CLOCK" to return
to Normal Display. If no key is pressed for
thirty [30] seconds, the display will return to
Normal Display, automatically.
g. Holiday Feature
NOTE: WHEN AN EVENT IS CHANGED, ALL
EVENTS WHICH ARE SCHEDULED TO OCCUR
ON THAT DAY AFTER THE EVENT BEING
CHANGED ARE ERASED.
To temporarily suspend a programmed Daily
Event Schedule for a particular day during the
upcoming seven [7] day period, press
"HOLIDAY". The display will show the status of
the current day. Select the day's Daily Event
Schedule which you wish to suspend [make a
Holiday] by pressing "DAY+" and/or "DAY-".
Press "CHANGE CLEAR" to make that day a
holiday. Press "DAY+" and/or "DAY-" to select
additional Holidays press "RETURN CLOCK" to
return to Normal Display. If no key is pressed
for thirty [30] seconds, the display will
automatically return to Normal Display. After
the Holiday passes, the Daily Event Schedule
will resume normally. The Manual Controls will
operate normally during a Holiday.
The time will begin to flash. Press "HOUR+"
and/or "HOUR-" to select the desired hour.
Press "MINUTE+" and/or "MINUTE-" to select
the desired minute. When the correct time is
displayed, press "SAVE ENTER".
Press
"NEXT" to access the next event.
NOTE: A "FAN ON" EVENT MUST BE FOLLOWED
BY A "FAN OFF" EVENT.
Repeat the programming procedure indicated
above.
When you have completed
programming the events for that day, press
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h. Fan On During Recovery
PAWS
The operator can choose to have the fan on
during PAWS recovery periods or remain off.
To have the fan come on during recovery, push
down the right side of switch number one of the
selector switch. To have the fan remain off
during recovery, push down the left side of
switch number one of the selector switch. [see
fig. 19]
Programming Keypad
k. Diagnostic LED Indicators
Because of the use of solid state relay circuits,
a conventional voltmeter may not give reliable
readings as regards to the operation of the
various inputs and outputs. To aid in
troubleshooting, diagnostic LED indicators
have been built into the left-hand side of the
Input/Output Board.
They are shown below.
i. Power Loss
In the event of a power loss the clock stops but
the PAWS and the Daily Event Schedule are
retained for up to six [6] months.
D-1 Green
Illuminates when the number one wash
output is energized.
D-2 Green
j. Last Command Indicator
In the Normal Display, the last digit of the top
row indicates the last command put into the
microprocessor.
Illuminates when the number two wash
output is energized.
D-3 Green
Illuminates when the number three wash
output is energized.
The letters used are:
L = Power Loss
D-4 Green
C = Clock or Program Change
P = Programmed Daily Event
Schedule Command
Illuminates when the number four wash
output is energized.
D-5 Green
M = Manual fan or PAWS Command
H= Holiday in progress
Illuminates when the number five wash
output is energized.
D-6 Green
Illuminates when the number six wash
output is energized.
D-7 Green
Illuminates when the number seven wash
output is energuzed.
LAST
COMMAND
INDICATOR INDICATOR
DAY OF
WEEK
ꢀ
AM/PM
TIME
ꢀ
ꢀ
ꢁ
D-8 Green
FRI
06:45 PM
M
Illuminates when the number eight wash
output is energized.
FAN OFF/WASH
OFF
D-9 Green
Illumintates when the detergent pump
output is energized.
PAWS NORMAL DISPLAY
D-10 Green
Illuminates when the PAWS Alarm Horn
output is energized.
D-11 Green
Illuminates when the ventilator fan
output is energized.
D-18 Red
Illuminates when the manual pull station
circuit is in the normal postion.
D-20 Green
Illuminates when the PAWS supervised
valve is open.
D-21 Red
Illumintes when the ventilator automatic fire
detection circuit is activated.
D-32 Red
Glows when the battery circuit is charging.
D-35 Red
Glows when the detergent level is low.
fig. 17B
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l. Detergent Pump and Tank
Detergent pumps are factory preset according to the
chart in fig. no. 15. This is a generalized guide;
settings may vary depending on water temperature
and pressure, detergent type and concentration,
grease load and PAWS duration.
Terminals No. 23 and 24 of AVTEC terminal
strip supply 120vac power to the detergent
pump during the Wash Cycle[s]. The pump
does not run during the Fire Cycle nor when
the detergent level is below the bottom of the
probe.
VII. VENTILATOR FEATURES AND ACCESSORIES
A. Baffle Filter Ventilators [AF Models]
These type of ventilators have removable filters
which extracts and collects grease in a
receptacle.
To start the flow of detergent, press the Pump
Prime Switch while the PAWS panel is not in a
wash cycle [no pressure on the outlet side of
the pump]. Hold the Pump Prime Switch until
there is no air in the suction line of the pump or
in the pump head itself. Once there is a solid
column of detergent from the tank through the
pump, no further action [except to fill the
detergent tank] should be required.
1.Filter Installation [Refer to fig. 20]
Grease extractor filters are installed by sliding
them into the upper slot and then lowering
them into the grease trough slot as shown in
the drawing below.
fig. 20
The filters are removed for cleaning by
reversing the procedure.
NOTE: The filters must be installed with the
baffles running vertically and with the handles
facing toward the capture area.
2.Grease Receptacles
Grease receptacles are located at one each
of each ventilator section. These must be
cleaned out periodically. The frequency of
this cleaning is dependent upon the type of
equipment used beneath the ventilator and
the duration of its use.
It is suggested that initially the grease
receptacles be emptied daily.
Terminals No. 21 and 22 of AVTEC terminal
strip are low voltage [20vdc, 2ma] connections
for the detergent level probe. The probe
should be installed in the detergent container
so that it is above the top of the detergent
pump inlet strainer. It
is intended to prevent air from entering the
pump and notify the operator when it is time to
refill or replace the detergent tank. The probe
rods may be cut to facilitate a neat and
effective installation. [See fig. no. 9]
B. Modular Grease Extractors [AX Models]
These type ventilators have removable
extractor modules which extracts grease
contaminants which collects in a grease
receptacle at each end of the ventilator
section.
1. Grease Extractor Module Installation
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[Refer to fig. 21]
ventilator section to hold the front panel
open.
Grease extractor modules are installed
by sliding the top [narrow] part of the
module into the upper retaining slot and
then lowering the bottom part of the
module into the grease trough slot.
2. Spray Nozzles
Spray nozzles for hot water wash and
cold water mist are protected from
clogging by wye-strainers located in the
plumbing enclosure. However, scale and
contaminants will accumulate in time and
these will require occasional cleaning to
assure proper wash down and spray
distribution. A paper clip or other pointed
object should be used to scrape
contaminants from the nozzles.
D. Air Adjustment Baffle [Refer to fig. 23]
Some grease extractor models may be
equipped with air adjustment baffles at the
exhaust intake slot. These baffles may be
adjusted to increase or decrease the intake
slot, according to the cfm desired or required
for varying pieces of cooking equipment
underneath. The length of the baffles varies
according to project design specifications and
conditions. The standard opening of nominal 3"
yields approximately 250 cfm/linear ft. and is
used for most cooking appliances. Air flow may
be reduced to a low as 150 cfm/linear ft. for
ovens, steamers, etc. depending on local job
conditions. Adjusting the slot to nominal 1-3/4"
opening will yield approximately 150 cfm/linear
ft.
fig. 21
NOTE: Handle faces towards capture area.
2. Grease Receptacles
Grease receptacles are located at each
end of each ventilator section. These
must be cleaned out periodically. The
frequency of this cleaning is dependent
upon the type of equipment used beneath
the ventilator and the duration of its use.
It is suggested that initially the grease
receptacles be emptied daily.
C. Auto Wash Grease Extractors [AW
Models]
These type ventilators have an automatic
wash cycle which requires only occasional
wiping down of inside grease extractor.
The Thrift Island Series ventilators uses only
one grease extraction chamber and is designed
for 250-270 cfm/linear ft. on the cooking side
and 150 cfm/linear ft. on the oven/steamer side.
These units are provided with air adjustment
baffles to "fine-tune" the balance of air from
each side, and to change air velocity as job
conditions dictate.
1. Grease Extraction Chamber
The front panel is hinged to facilitate
access to the nozzles and grease
extraction baffles.
[Refer to fig.22]
fig. 22
To open, turn all front panel latches
clockwise to the open [unlatched] position
and swing the bottom of the front panel out.
"Kickstands" are provided at each end of the
fig. 23
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F. After the temperature has dropped below
300oF, the damper can be reset and opened
by pushing the damper reset arm toward the
plenum until it latches.
If the fusible link has melted, it must be
replaced before the damper can be reset. An
access plate is provided.
To adjust air intake slot, turn nuts to loosen,
move air adjustment baffles up or down until
the desired slot opening is obtained, and tighten
nuts.
E. Fire Dampers
1. Fusible Link Type
Some ducts are protected by fire dampers
which are activated by a fusible link rated at
360oF exhaust and 286oF supply When this
temperature is exceeded, the fusible link
melts allowing the fire damper to fall closed.
This linkage should be inspected and the
fusible links replaced annually. Fusible links
in the exhaust duct collar are readily
accessible by removing the baffle filters
[Models AF] or grease extractor modules
[Models AX]. [Refer to fig. 20 and 24] An
access plate is provided for access [supply]
duct collar for all models.
When the damper is closed manually or if the
fusible link melts and causes the damper to
close, the fan and auto wash down are not
affected.
When the damper closes due to activation of
the thermoswitch, the fan[s] will shut OFF and
the auto wash will actuate.
F. Air Make-Up [Supply] Plenums
Ventilators may be supplied with four [4]
different Air-Make-up plenums.
Air is
controlled by grill registers or a special E-Z
Breeze perforated panel.
1. Grill Registers [Refer to fig. 25]
Grill registers are located for external
discharge or both internal and external
discharge.
Internal register have fixed
louvers for proper "Short Cycle" of air.
External registers have four-way louvers for
adjusting direction of air flow to suit job
requirements. Grill registers have opposing
blade dampers located on the rear of the
fig. 24
Electro-Mechanical Type [Refer to fig. 24]
Some ducts are protected by fire dampers
which are activated by heat sensitive
thermoswitches located near the duct inlet.
These switches close electrically at
temperatures above 300o F and activate a
solenoid which releases the damper, and
energizes a relay which activates the plenum
auto wash/fire extinguishing spray and
deactivates the fan. In the event of a loss of
power, the damper assembly also contains a
fusible link, set at 360oF.
FIRE DAMPER
register. The airflow may be adjusted by
turning the damper adjustment screwhead
located just behind the louvers as shown in
fig. 25.
fig. 25
2. E-Z Breeze [Refer to fig. 26]
The damper can be manually closed by
pulling down on the red knob at the end of the
damper reset arm and allowing it to swing
away from the plenum.
The E-Z Breeze plenum is specially designed
to slow the velocity of the supply air to
minimize the energy costs incurred for
tempering the air. The front perforated panel
is removable for cleaning.
provided to secure the panel in place after
cleaning.
If the damper has been activated by
excessive temperature, it cannot be reset
until the temperature has dropped below 300o
Screws are
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plenum area which runs whenever the fans
are ON. This com- plements the baffle
system on Energy Aire Systems and does not
replace the wash down feature.
Water
pressure should be between 30-40 psig flow.
I. Lights
1. Surface Mounted - Incandescent
To replace the bulb unscrew the globe.
Fixture will accept bulbs up to a maximum of
100 watts. Screw the bulb into the socket
and then proceed to screw the globe tightly
in position. Be sure that the inner silicone
gasket is in place before installing the globe
fig. 26
3. Slot-Type Internal Air Make-Up
Hoods provided with "Short-Cycle" type air
make-up only are supplied with a slot which is
designed to direct the air along the top of the
hood and into the exhaust plenum inlet. The
volume of air can be regulated through the
use of a combination balancing damper and
fire damper located on top of the air make-up
plenum. [Refer to fig. 24]
2. Recessed - Incandescent
To replace the bulb, loosen screws which
retain diffuser panel.
Diffuser panel is
attached to housing with a cable to prevent it
from falling or becoming lost. Fixture will
accept bulbs up to a maximum of 150 watts.
3. Recessed - Fluorescent
To replace bulbs, unscrew diffuser panel.
The diffuser is attached to a housing with a
cable to prevent it from falling or being lost.
Two [2] bulbs are required for each fixture.
G.Auto Wash
Plenum wash down is a feature of the Energy
Aire Ventilator which eliminates the need to
frequently clean the grease extraction area.
The wash down cycle normally occurs
immediately after the cooking period and
Fixture Size
[nominal]
24"
Bulb Size
[2] F20T12TS
[2] F30T12RS
[2] F40T12RS
36"
48"
does not occur while the fans are ON.
A
water/detergent mixture is sprayed from a
series of nozzles to remove accumulated
grease and grime which flows out through the
drain. A vacuum breaker/check valve must
be installed upstream of the detergent
injection point [and a minimum of 6" higher
than the ventilator inlet] to prevent detergent
from backflowing into the building water
supply. [Refer to fig. 14]. Hot water should
be at 120oF and pressure must be between
20 psig and 40 psig flow. The duration of the
wash down cycle is adjustable and will vary
depending of length of cooking cycle, type of
cooking equipment used, concentration of
detergent, water pressure and temperature,
among other considerations. See Sec. VI, b.,
"Setting the PAWS", for instructions.
VIII. PERIODIC MAINTENANCE
A.Baffle Filters
Filters should be removed and cleaned at least
weekly, depending on hours of operation.
Filters may be cleaned by soaking in a strong
detergent solution, or running thru
a
dishwasher. When replacing, make sure filters
and handles are running vertically, and filters
are seated properly, refer to Sec. VII, A.1, pg.
15.
B.Modular Grease Extractors
Modules should be removed and cleaned at
least weekly, depending on hours of operation.
Modules may be cleaned with a brush and a
strong detergent solution, or run thru the
dishwasher. When replacing modules, make
sure they are seated properly, refer to Sec. VII,
B.1, pg. 16.
**Note: See Page 28 cut sheet for detergent
information.
H.Cold Water Mist [Optional]
To aid in extracting particulates from the
exhausted air and to aid in cooling the
exhaust, a cold water mist option is available.
This is especially useful with charbroilers.
Cold water mist is a fine spray within the
C.Grease Trough
Should be checked weekly for grease build up,
and cleaned with strong detergent, if
necessary.
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Cable tension can be adjusted by moving the
eye-bolts in and out to ensure that the
damper is fully open.
D. Grease Collection Receptacle
Should be emptied at least once a day, and
cleaned daily with a strong detergent.
fig. 27
E. Hood Canopy
2. Curtain Type [Refer to fig. 28]
1. Inside hood canopy should be wiped
down as needed. The area at the exhaust
intake openings should be wiped down daily.
When make-up air is brought directly into
the capture area a fire damper is required at
the duct collar. The curtain damper is
equipped with a 212°F fusible link [P/N AS
LNK0006]. Fusible links shall be replaced at
least annually per NFPA 96, 8-2.1.2. New
“s” hooks [P/N FA HOK0301] should be
installed whenever the fusible links are
2. Inspect inside of extraction chamber at
least monthly, to insure proper cleaning and
that the trough is free of foreign matter.
replaced.
These links are replaced by
F. Detergent System
unfolding the retaining strap and removing
the clover hook and fusible link as a unit.
Be careful to hold the curtain damper in
place as a spring will try to pull it closed.
1. Detergent tank should be checked at
least weekly; and cleaned every six months.
Always keep cover on tight to prevent
spillage and evaporation.
fig. 28
2. A colloid type detergent, is recommended
due
to
its
non-caustic,
non-toxic,
biodegradable characteristics. It will not
damage the rubber or synthetic parts of the
pumping system.
AVTEC recommends
using EVAC Detergent. Available thru your
local Service Agents or call Factory. See
page 28 for more information.
3. All fittings should be checked for air
tightness at least monthly.
4. Foot check valve should be cleaned every
six months.
G. Fusible Link Replacement
1. Blade Type [Refer to fig. 27]
Exhaust damper fusible links are rated at
350°F [P/N AS LNK0302] and Air Make-
up damper fusible links are rated at 286°F
[P/N AS LNK0303]. Fusible links shall be
replaced at least annually per NFPA 96, 8-
2.1.2. New "S" hooks [P/N FA HOK0301]
should be used whenever the fusible links
are replaced.
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IX. PARTS LIST
A. PAWS PANEL - ELECTRICAL
ITEM NO.
AVTEC PART NO.
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
112-0301
EL BLK0306
EL BLK0307
EL BLK0308
EL FUS0304
EL BLK0315
EL SEN0305
EL SWT0318
EL STA0301
EL HRN0301
EL ASV0303
EL TER0301
EL RLY0317
PP LBL0302
PP LBL0303
RP PRB0601
Fuse Block Bracket
Terminal Brass Screws
Terminal Trac
End Stop for 200-1018
Fuse [SC-15]
Fuse Block [Holder]
Low Level Sensor [Detergent] PC Board
Flush Toggle Switch
Pull Station [Yellow]
Sonalert Horn
PAWS Assembly Model P10 & P20
Output Term for Converting MAF/PAWS Assembly
Output Relay for Converting MAF/PAWS Assembly
PAWS Faceplate w/slot Silkscreen/Acrylic
PAWS Faceplate no slot Silkscreen/Acrylic
Detergent Probe Cut to Length
B. VCW PANEL - ELECTRICAL
ITEM NO.
AVTEC PART NO.
EL CNT0302
EL CNT0348
EL SWT0348
EL SWT0351
EL BLK0323
DESCRIPTION
Terminal Block Section
1
2
3
4
5
Terminal Section End Stop
Push Button w/Black Cap, Start Fan
Push Button w/Red Cap, Start Wash
Normally Open Contact Block
[For part no. EL SWT0348 & EL SWT0351]
Light Switch [20a]
Fire Switch [Pull Station]
Relay Socket [For part no. EL TMR0312]
Omnetics Timer Relay]
6
7
8
9
EL SWT0318
EL STA0301
EL RLY0315
EL TMR0312
C. PAWS/VCW PANEL - PLUMBING
ITEM NO.
AVTEC PART NO.
HD TNK0301
HD TNK0302
PB SOL0301
PB SOL0302
PB SOL0303
PB SOL0304
PB SOL0305
PB VLV500
DESCRIPTION
1
2
3
4
5
6
7
8
5 gal. Detergent Tank
2 gal. Detergent Tank
1/2" Water Solenoid
3/4" Water Solenoid
1" Water Solenoid
1-1/4" Water Solenoid
1-1/2" Water Solenoid
1/2" Ball Valve
9
PB VLV756
3/4" Ball Valve
10
11
12
13
14
PB VLV750
PB VLV790
PB VLV0306
PB VLV0311
PB VLV0312
1" Ball Valve
1-1/4" Ball Valve
1-1/2" Ball Valve
1" Supervised Shut-Off Valve [Water]
1-1/4" Supervised Shut-Off Valve [Water]
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16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
PB VLV0313
PB VLV0302
PB VLV0303
PB VLV0304
PB VLV0332
600-1104
1-1/2" Supervised Shut-Off Valve [Water]
1/2" Check Valve, Br.
3/4" Check Valve, Br.
1" Check Valve, Br.
3/8" Check Valve, Br.
1/4" Check Valve, Br.
1-1/4" Check Valve, Br.
1-1/2" Check Valve, Br.
1/2" Wye [Line] Strainer, B.I.
3/4" Wye [Line] Strainer, B.I.
1" Wye [Line] Strainer, B.I.
1-1/4" Wye [Line] Strainer, B.I.
1-1/2" Wye [Line] Strainer, B.I.
1/2" Shock Arrestor
1/2" Press/Temp. Gauge
1/2" Vacuum Breaker, Br.
3/4" Vacuum Breaker, Br.
1" Vacuum Breaker, Br.
1-1/4" Vacuum Breaker, Br.
1-1/2" Vacuum Breaker, Br.
3/4" Pressure Reducing Valve
1" Pressure Reducing Valve
1-1/4" Pressure Reducing Valve
Single Head Diaphragm Pump [Detergent]
Foot Valve
PB VLV0305
PB VLV0316
HD STN0303
PB WYE0301
PB STN0306
PB WYE0302
HD STN0305
PB SUP0301
HD GGE0303
PB BRK0301
PB BRK0305
PB BRK0302
PB BRK0306
PB BRK0312
PB VLV0317
PB VLV0326
PB VLV0403
HD PMP0301
HD PMP0303
PB VLV0342
Check Anti-Syphon Valve
D. EVAC DETERGENT
ITEM NO.
PART NO.
FL DET0302
FL DET0303
DESCRIPTION
EVAC 1 Gallon
EVAC 5 Gallon
1
2
E. ELECTRO - MECHANICAL DAMPER
ITEM NO.
AVTEC PART NO.
FA SCW0301
HD SPR0303
HD SPR0304
HD SPR0306
HD KNB0301
EL CNT0323
EL CNT0348
EL RLY0311
HD SOL0313
EL SWT 0323
411-0226
DESCRIPTION
1-1/2" S/S Spring
Damper Spring [Right]
Damper Spring [Left]
Solenoid Return Spring
Red Knob [Damper]
Terminal Section
Terminal Section End Stop
Fire Relay [Damper]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Damper Solenoid
300oF, Normally Open Thermoswitch
Electro-Mechanical Damper Instruction [Label]
Convolution Boot
AW Damper Linkage Assembly Complete
350oF, Fusible Link
Stainless Steel Cable
HD BOT0301
AS ASY0301
AS LNK0302
AS CBL0301
AS SLV0301
Crimp Sleeve (For S.S. Cable)
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17
18
144-0901
144-0902
Small Linkage (Between 306-0000 and 144-0902)
Large LInkage
F. FUSIBLE LINK DAMPER
ITEM NO.
AVTEC PART NO.
AS DMP1010B
AS DMP1610B
AS DMP2010B
AS DMP3010B
AS DMP4010B
AS DMP1010C
AS DMP1610C
AS DMP2010C
AS DMP3010C
AS DMP4010C
AS LNK0302
FA BLT0303
FA HOK0301
AS CBL0301
AS SLV0301
AS LNK0303
AS LNK0201
306-0007
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
10" x 10" Balancing Damper
16" x 10" Balancing Damper
20" x 10" Balancing Damper
30" x 10" Balancing Damper
40" x 10" Balancing Damper
10" x 10" Combo Balancing and Fire Damper
16" x 10" Combo Balancing and Fire Damper
20" x 10" Combo Balancing and Fire Damper
30" x 10" Combo Balancing and Fire Damper
40" x 10" Combo Balancing and Fire Damper
Fusible Link 350oF
Eye Bolt 3/16" x 2" - 10 - 24
"S" Hook
Stainless Steel Cable
Crimp Sleeve [for S/S Cable]
Fusible Link 286oF
Fusible Link 212oF
Clover Hook [Curtain Damper]
G. HOOD CANOPY
ITEM NO.
AVTEC PART NO.
HD LCH0304
HD LCH0307
DESCRIPTION
Paddle Latch
"Vice Action" Panel Latch
16" x 16" S/S Filter
20" x 25" S/S Filter
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
AS FLT1616SSR
AS FLT2025SSR
AS FLT2020SSR
AS FLT2020ALR
AS FLT1616ALR
HD HGR0301
AS FLT1620SSR
AS FLT1620ALR
AS FLT2016ALR
AS FLT2025ALR
AS FLT2016SSR
AS GLB0201
AS FXT0301
AS LGT0001
AS LGT1220
AS LGT1420
AS LGT1020
AS LGT9901
AS NZL0302
20" x 20" S/S Filter
20" x 20" Aluminum Filter
16" x 16" Aluminum Filter
Hanger Bracket [Ventilator]
16" x 20" S/S Filter
16" x 20" Aluminum Filter
20" x 16" Aluminum Filter
20" x 25" Aluminum Filter
20" x 16" S/S Filter
Incandescent Work Light Globe
Incandescent Work Light Cage
Incandescent Work Light Base
3'-0" Fluorescent Work Light
4'-0" Fluorescent Work Light
2'-0" Fluorescent Work Light
Recessed Incandescent Work Light
Spray Nozzle, Br. No. 1/8 B-0.5-0.5W
[Cold Water Mist]
22
23
24
25
26
AS NZL0303
AS NZL0304
PB CPL0316
PB ADP0310
PB FTG0311
Spray Nozzle, Br. No. 1/8 GG-2.8W ]Water
Spray Nozzle, Br. No. 1/8 GGA-1.5W ]Wash
2” Expandable Coupler
2” PVC XMPT Adapter
2” Male PVC Fitting
25
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Cleaner/Degreaser
For Exhaust Ventilator Auto-wash Cleaner
Cleaner/Degreaser
Formulas at your fingertips
In order to achieve maximum economy in the
maintenance of your water-wash system, EVAC
Cleaner/Degreaser can be diluted. Following are
some suggested dilutions:
Advantages
UNIQUE, POWERFUL CLEANING FORMULA
COOKING TYPE
DILUTION SUGGESTED
Medium daily cooking 1 part EVAC : 2 parts water
v Tough enough to break down the worst oil and
grease in your water wash system…leaving it
Super Clean!
Heavy daily cooking
(No Charbroilers/solid
fuel use)
1 part EVAC : 1 part water
Use Concentrate
v Reduces the need for using environmentally
Heavy daily cooking
Charbroiling Solid fuel
cooking
harmful chemicals
v Non-caustic and non-abrasive
v Concentrated formula gives you more cleaning
Note: There are multiple combinations of dilution, wash
cycle length, frequency of washes, water temperature,
and mechanical options possible for most systems.
Consult experienced distributor/service agents for
information regarding the best program for your
institution.
power for your money!
v Compatible with bio-enzyme wastewater treatment
products like TDW Grease Treatment
v Exclusive factory detergent pump warranty
v Can be used in all water-wash ventilators.
Certified Biodegradable
EVAC Cleaner/Degreaser is certified biodegradable by
Scientific Certification Systems (SCS), an independent
organization. SCS has established some of the
nation’s strictest standards for environmental
performance.
AVAILABLE IN
1/2 GALLON, 1 GALLON, 5 GALLON,
30 GALLON AND 55 GALLON DRUMS
Ask your Authorized Service Agency for these part numbers
FL DET 0301
FL DET 0302
FL DET 0303
1/2 GALLON
1 GALLON
5 GALLON
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AIR MOVEMENT RECORDINGS
(Supplement to Ventilator Installation/Start Up Report)
Project Name
Readings Taken by:
A. ENERGY AIRE HOODS - EXHAUST
1. Reading No. 1, 2, and 3 are taken at the front
middle, and back of the intake slot.
2. For 8 foot hood sections and less, take three
[3] readings at each of three [3] locations:
1 foot from each end, and one [1] reading in
the middle.
3. For hood sections over 8 feet in length, take
three [3] readings at each of four [4] locations:
1 foot from each end, and two [2] readings in
the middle.
4. B. FILTER HOODS - EXHAUST
1. Take Reading No. 1, 2, and 3 on vertical
centerlines.
2. Refer to A.2, 3.
C. SUPPLY PLENUM
1. Reading No. 1 only is used.
2. Take readings on horizontal centerline of grill.
3. Refer to A.2, 3, but only one reading at each
location
AVTEC INDUSTRIES INC. 1055 MENDELL DAVIS DR. JACKSON, MS 39272 [888] 994-7636
form no. 14018 1998 AVTEC Industries inc.
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CALCULATING AND RECORDING AIR MOVEMENT
1.) Cubic feet per minute or CFM'S is the total area multiplied by the average feet per
minute.
A:
CFM
AREA
FPM
B: CFM = AREA x AVG. FPM
FPM = CFM ÷ AREA
AREA = CFM ÷ FPM
2.) AREA is the length of the opening multiplied by the width in inches. Divide the total
by 144 to get the total square feet (area).
EXHAUST
A: Filter Hoods - Area = *Square Feet x Quantity of Filters
* 16 x 20 Filter = 1.75 Square Feet
* 20 x 20 Filter = 2.25 Square Feet
B: Extractor Type Hoods - Area = **Square Feet x Quantity of Modules
16” Standard Module
**Low Volume Extractor w/3" Slot = .32352 Square Feet
**High Volume Extractor w/4" Slot = .43136 Square Feet
9” Standard Module
**Low Volume Extractor w/3" Slot = .1855 Square Feet
**High Volume Extractor w/4" Slot = .2473 Square Feet
C: Water Wash Hood - Area = Length of Slot x Width of Slot in inches and
divided by 144 for square feet.
SUPPLY
A: Perforated Supply Air Panels - Square Feet of Panel x .4 = Area.
B: Register Type Supply Air Panels - Square Feet of Panel x .7 = Area.
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NOTE: AVTEC INDUSTRIES recognizes readings taken at the surface and not at the duct opening.
Please refer to the Air Movement Recording Worksheet for proper location(s) to take readings.
WARRANTY-
AVTEC INDUSTRIES INC. warrants to the original purchaser for use of our products, that any part thereof which
proves to be defective in material or workmanship under normal use within one year from date of installation, will
be replaced free of charge, labor to replace such part is warranted for one year from installation. All warranty labor
to be performed during regular working hours, with no overtime premium.
All Warranty service must be authorized by the factory and be performed by AVTEC's authorized service
personnel.
This Warranty is limited to the United States and Canada.
This Warranty does not apply to any damage resulting from shipping, improper installation, accident, unauthorized
alteration, local codes not previously brought to the attention of AVTEC, misuse, or abuse; and does not cover
loss of food, other products or damage to equipment or property resulting from mechanical or electrical failure.
AVTEC neither makes nor assumes and does not authorize any other person to assume any other obligation or
liability in connection with its products other than that covered in this Warranty.
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