V4043, V8043 SWEAT COPPER CONNECTION MODELS
5
6
V8043A,E,F 5000 Series
3-1/2 (89)
1
ZONE VALVES
1-3/4
(44)
1-3/4
(44)
7/8 DIA.
(22)
2-3/8
(60)
APPLICATION
8
5-1/4
(133)
These valves consist of a motorized
actuator and valve assembly for controlling
the flow of hot water to a heat exchanger
such as a radiator, convector, finned
baseboard radiator, or infloor radiant coil
for space temperature control. The V8043
5000 series valves provide two-position,
straight through control of supply water at
up to 300 psi operating pressure.
1-1/2
(38)
3/8
(10)
MAN OPEN
AUTO
1
2
HEIGHT NEEDED TO REMOVE COVER.
DIMENSIONS FOR 1/2 IN. COPPER TUBING.
DIMENSIONS FOR 3/4 IN COPPER TUBING.
DIMENSIONS FOR 1 IN. COPPER TUBING.
A
B
OUT
IN
7
3
4
15/32
(12)
1-5/16
(33)
2
Quick Fit actuator provides easy snap on and
off connection to the valve assembly.
4-7/8 IN. (124) MAX ON V8034F WITH TERMINAL
BOARD ENCLOSURE.
2-5/8
(66)
5
6
1-3/8
(35)
V4034B AND V8043B VALVES THAT ARE
NORMALLY OPEN IN THE DE-ENERGIZED
POSITION HAVE NO MANUAL LEVER.
3
Patent Pending
2-3/4
(70)
SPECIFICATION
REFER TO MOUNTING INSTRUCTIONS.
7
1-11/16
(43)
4
Actuator Materials:
Actuator Electrical Rating:
24Vac 60 Hz, 0.30 A Current Draw,
5 W, 7.2 VA maximum
OPENING FOR 1/2 IN. CONDUIT ON MANUAL
LEVER SIDE FOR V4043, V8043.
8
3-3/8
(86)
Case:galvanized steel.
Cover : zinc plated steel.
Sector gear: Brass
M10175.A4
Electrical Connection:
Fig. 1 - Mounting Dimensions in in. (mm in Brackets)
Valve Material:
18” leads or screw terminal board
Auxiliary Switch Rating:
120V, 4.4A running, 26.4A Inrush (60 Hz);
50 VA Pilot duty at 24 V.
Fluid Temperature:
Standard models (class F motor):
200° F (93° C) Max.
Ambient Temperature:
125°F (52° C) Max.
Humidity Limits:
95% Relative Humidity, Non-condensing
Shipping and Storage Temperature:
-40°F to 150°F (-40°C to 65°C).
Atmosphere:
Non-corrosive, non explosive.
Maximum Soldering Temperature:
500°F (260°C). Rubber ball plug must be
moved away from the seat for soldering.
Maximum System Pressure Rating:
300 psi (2000 kPa), PN20.
Flow Characteristics:
Body of forged brass; drive shaft stem of
stainless steel; ball plug of Buna-N rubber;
o-ring seals of EPDM rubber.
CAUTION
3. Installer must be a trained, experienced
service technician.
4. After installation is complete, check out
product operation as provided in these
instructions.
1. Disconnect power supply before
connecting wiring to prevent electrical
shock or equipment damage.
Service Medium:
Suitable for glycol/water mix up to 50:50
use in closed hydronic systems. Not for
use with oxygenated water, potable water
or steam.
Use this valve in hydronic systems which
do not contain dissolved oxygen in the
system water. The dissolved oxygen,
which is found in systems that have a
frequent source of make-up water, causes
the rubber plug inside the valve to
2. Normally it is not necessary to remove
the actuator from the valve body during
installation. If the valve must be
disassembled, be certain that it is
reassembled with the water flow in the
direction of the arrow. Reversal of the
actuator results in damage to the gear
train.
3. On 24V systems, never jumper the
valve coil terminals even temporarily.
This can burn out the heat anticipator in
the thermostat.
Location
Install the valve in an area with adequate
clearance to:
- Move the manual opening lever on the
side of the actuator
- Remove the actuator cover
- Wire the actuator
- Replace the actuator motor
deteriorate and eventually fail.
Approvals:
CSA C/US Certified to Canadian Standards
Association and Underwriter's Laboratories
Standards.
The valve location should be in an area
where the temperature does not exceed the
maximum valve operating ambient
INSTALLATION
temperature and fluid temperatuare.
When Installing this Product…
Manual Lever
MODELS
1. Read these instructions carefully. Failure
to follow them could damage the product
or cause a hazardous condition.
2. Check the ratings given in the
instructions and on the product to make
sure the product is suitable for your
application.
The V8043 normally closed valves can be
opened manually by moving the manual lever
slowly and firmly to the MAN. OPEN position
and pushing up to the stop. The stop permits
the valve to be locked in the open position.
The valve returns to automatic position when
it is energized.
Quick opening for on-off application.
Slow return for water hammer resist.
Maximum Close-off Rating (@ Flow
Capacity Rating) :
20 psi (@ 3.5 Cv)
8 psi (@ 8 Cv)
V8043 (Straight through, Normally Closed)
V8043A: Leadwires
V8043E: Leadwires and End Switch
V8043F: Terminal Board and End Switch
2
Form No. 95C-10932
1
2004.09 Printed in Canada
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CONNECTIONS FOR V8043E
(LEADWIRE MODEL)
T822
T822
T822
T822
T822
T822
ZONE V8043E
ZONE 3
ZONE 4
ZONE 1
ZONE 2
L1
(HOT)
L2
END SWITCH
END SWITCH
END SWITCH
END SWITCH
L1
(HOT)
L2
TO
V8043F
V8043F
V8043F
V8043F
1
CIRCULATOR
CONTROL
CIRCUIT
1
RED
RED
2
2
2
2
2
2
B
B
R
TH-TR
TH
TH-TR TH
ZONE 2
TH-TR TH
ZONE 3
TH-TR
TH
TR
TR
TR
TR
ZONE 4
ZONE 1
V8043E
3
V8043E
3
V8043E
3
V8043E
3
V8043E
3
V8043E
3
B
B
B
R
B
B
R
B
YELLOW
W
B
R
B
R
YELLOW
BR
INTEGRAL
TRANSFORMER
W775A PANEL
HIGH
LIMIT
L4006A
L1
(HOT)
W
W
W
W
POWER
SUPPLY
L2
BR
BR
BR
BR
TO OIL PRIMARY
CONTROL OR TO
TRANSFORMER
AND LOW VOLTAGE
GAS VALVE
W775A PANEL
B1
B2
T
T
TO BURNER
CONTROL
CIRCUIT
T87F
T87F
T87F
T87F
1
2
M5980
Fig. 13 - Typical 4-zone system. Use an additional W775A to power up to four more zone valves.
CIRCULATOR
C1 C2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
TO BURNER
AND / OR
CIRCULATOR
CIRCUIT
ZONE 4
2
3
ZONE 2
ZONE 5
CONNECT V8043E YELLOW LEADWIRE TO THERMOSTAT.
CONNECT V8043E RED LEADWIRES TO L1 (HOT) LINE AND
ZONE 1
ZONE 3
T87F
T87F
T87F
T87F
T87F
PRIMARY CONTROL.
M10169
CIRCULATOR
Fig. 9 - T822, V8043E zone hookup for gas or oil. No domestic hot
water.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
V8043F
V8043F
END SWITCH
V8043F
END SWITCH
V8043E
V8043E
END SWITCH
YELLOW
YELLOW
2
3
CONNECT V8043E YELLOW LEADWIRE TO THERMOSTAT.
YELLOW
RED
YELLOW
RED
CONNECT V8043E RED LEADWIRES TO AQUASTAT®.
M10170
RED
RED
Fig. 10 - T822, V8043E zone hookup for gas or oil with or ithout
domestic hot water. Without domestic hot water, use L8148J for
gas, and L8148A for oil. With domestic hot water, use L8124E for
gas, and L8124A or C for oil.
TH-TR
TH-TR
TH-TR
TH
TH
TH
TR
TR
TR
L1
(HOT)
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
L2
1
V4044, V8044
VALVE OPERATOR
HEATING
COOLING
THERMOSTAT
AT87A
TRANSFORMER
ZONE 1
T87F
ZONE 2
T87F
ZONE 3
T87F
M10164
NOTE: IF CODE PERMITS, V8043E AND V8043F CAN BE USED INTERCHANGEABLY WHEN WIRED AS SHOWN.
RED
V8043F
END SWITCH
V8043F
END SWITCH
V8043F
END SWITCH
Fig. 14 - Typical 5-zone system. Use an AT87A Transformer to power up to five more zone valves.
1
BLUE
TO
POWER
ADD
JUMPER
TO EACH
VALVE
YELLOW
V8043E
C
TH-TR
TH
TR
TH-TR
YELLOW
TH
TR
TH-TR
1
TH
TR
MOTOR
THERMOSTAT
L1
(HOT)
TACO VALVE
1
L1
(HOT)
A
B
A
B
YELLOW
L2
L1
(HOT)
AQUASTAT® CHANGEOVER CONTROL SWITCHES TO HEATING (RED)
AT FLUID TEMPERATURE OF 85°F (29°C) MAX TO COOLING (BLUE) AT
FLUID TEMPERATURE OF 60°F (18°C) MIN.
1
T
Z
2
1
120 V
POWER
SUPPLY
TV
1
2
3
L2
THERMOSTAT
L8124G
C
L2
M10171
D
E
RED
RED
C1
B1
B2
C2
TO
AUXILIARY
CIRCUITS
D
E
TO AUXILIARY
CIRCUITS
TO
CIRCULATOR
TO BURNER
CIRCUIT
M5954
Fig. 11 - Wiring diagram for V4244 and V8244 with Aquastat®
changeover control.
Fig. 12 - Typical 3-zone system. Use an AT87A Transformer
to power up to five more zone valves.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
M5958
M10163
Fig. 15 - ExistingTaco system. (Wires are identified with
letters to correspond with wires in Fig. 16 and 17.)
Fig. 16 - Wiring Honeywell V8043E toTaco System (Wires are
identified with letters to correspond with wires in Fig. 15.)
5
6
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V8043F
V8043F
V8043F
V8043F
END SWITCH
END SWITCH
END SWITCH
F
E
D
E
END SWITCH
F
E
TO
AUXILIARY
CIRCUITS
TO TERMINALS
T, T ON
BURNER RELAY
1
1
TO TERMINALS
T, T ON
BURNER RELAY
TO AUXILIARY
CIRCUITS
1
2
L1
(HOT)
A
L1
(HOT)
C
A
L1
(HOT)
A
L1
L2
(HOT)
1
L2
B
L2
B
TH-TR
TH
TR
D
L2
TH-TR
TH
TR
D
TH-TR
TH
TR
B
TR
TH
TH-TR
C
C
6
5
THERMOSTAT
V8043F
THERMOSTAT
V8043F
4
THERMOSTAT
END SWITCH
THERMOSTAT
V8043F
3
END SWITCH
END SWITCH
F
E
F
E
TO TERMINALS
T, T ON
BURNER RELAY
END SWITCH
1
TO TERMINALS
T, T ON
BURNER RELAY
TO AUXILIARY
CIRCUITS
1
D
E
2
L1
(HOT)
TO
AUXILIARY
CIRCUITS
A
L1
(HOT)
1
A
L1
(HOT)
C
A
L1
(HOT)
L2
L2
B
1
B
TH-TR
TH
TR
D
TH-TR
TH
TR
D
L2
L2
TR
TH
TH-TR
TH-TR
TH
TR
B
C
C
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
THERMOSTAT
THERMOSTAT
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
THERMOSTAT
M5966
M5966
TAPE UNUSED END AND TUCK INTO HOLE.
M5713
Fig. 23 - Wiring Honeywell V8043F to Flair System (two options).
(Wires are identified with lettersto correspond with wires in Fig. 21.)
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
Fig.20 -.Wiring Honeywell V8043F to Dole System (two options).
(Wires are identified with letters to correspond with wires in Fig. 18.)
Fig. 26 - Wiring Honeywell V8043F to White-Rodgers System
(one option).
M5960
WHITE-RODGERS
TO AUXILIARY
1311 OR 1321
VALVE
WATER VALVE
THERMOSTAT
CIRCUIT
Fig. 17 - Wiring Honeywell V8043F to Taco System (two options).
(Wires are identified with letters to correspond with wires in Fig. 15.)
FLAIR VALVE
E
TO TERMINALS
T, T ON
BURNER RELAY
1
3
6
4
3
2
1
5
6
1
L1
(HOT)
A
B
F
L1
4
2
DOLE VALVE
(HOT)
5
L2
L2
A
1
4
V8043F
2
4
3
1
1
L1
END SWITCH
TO
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
(HOT)
5
C
B
D
2
AUXILIARY
CIRCUIT
L2
M5711
Fig. 24 - Existing White-Rodgers System.
D
L1
(HOT)
L2
C
THERMOSTAT
E
1
1
F
L1
(HOT)
TH
TR
TH-TR
TO TERMINALS
T, T ON
BURNER RELAY
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
L2
THERMOSTAT
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
6
5
M5977
5
6
YELLOW
M5978
4
Fig. 18 - Existing Dole System. (Wires are identified with letters to
correspond with wires in Fig. 19 and 20.)
3
YELLOW
RED
4
3
Fig. 21 - Existing Flair System. (Wires are identified with
letters to correspond with wires in Fig. 22 and 23.)
THERMOSTAT
END SWITCH
THERMOSTAT
RED
V8043E
TO
A
AUXILIARY
CIRCUIT
2
V8043E
YELLOW
1
A
TO AUXILIARY
CIRCUIT
L1
(HOT)
YELLOW
2
1
L1
C
B
D
L1
(HOT)
TO
AUXILIARY
CIRCUIT
(HOT)
L2
1
YELLOW
L2
C
B
D
1
YELLOW
YELLOW
L2
THERMOSTAT
L1
(HOT)
TO 6 ON
THERMOSTAT
E
F
RED
RED
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
RED
RED
THERMOSTAT
TO TERMINALS
T, T ON
L2
E
F
RED
RED
TO TERMINALS
T, T ON
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.
BURNER RELAY
BURNER RELAY
1
2
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
TAPE UNUSED END AND TUCK INTO HOLE.
M5714
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
IF TRANSFORMER SUPPLIES POWER TO AUXILIARY CIRCUIT,
WIRE AUXILIARY CIRCUIT AS SHOWN IN LOWER DIAGRAM.
M5965
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 27 - Wiring Honeywell V8043F to White-Rodgers System
(alternate option).
M5965
TAPE UNUSED END AND TUCK INTO HOLE.
M5712
Fig. 19 - Wiring Honeywell V8043E to Dole System. (Wires are
identified with letters to correspond with wires in Fig. 18.)
Fig. 22 - Wiring Honeywell V8043F to Flair System. (Wires are
identified with letters to correspond with wires in Fig. 21.)
Fig. 25 - Wiring Honeywell V8243E to White-Rodgers System.
8
7
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OPERATION
CAUTION
On 24V systems, never jumper the valve
A
B
A
B
coil terminals even temporarily. This can
burn out the heat anticipator in the
thermostat.
IN
IN
OUT
OUT
OPEN POSITION
A
CLOSED POSITION
B
M5951
Automatic Operation
Fig. 28 - V8043 operation for normally closed valve.
On a call for heat by the zone thermostat,
the valve opens and its auxiliary switch
contacts make, closing the circuit to the
system circulator. In a multizone system with
all the valve auxiliary switches wired in
parallel, any zone calling for heat can operate
the circulator. When the call for heat ends, the
valve closes by integral spring return. The
auxiliary switch contacts break the circulator
circuit.
CHECKOUT
1. Raise the setpoint on the zone
thermostat above the room
temperature to initiate a call for heat.
2. Observe all control devices—the valve
should open and the auxiliary switch
should make the circuit to the
circulator or other valve at the end of
the opening stroke.
3. Lower the setpoint on the zone
thermostat to below the room
temperature.
Manual Operation
The motorized valve can be opened
manually by lifting the manual opening lever
over the stop and pushing slowly and firmly to
the MAN. OPEN position. The stop permits
the valve to be locked in the open position.
The valve returns to automatic position when
the valve is energized.
4. Observe the control devices. The valve
should close and the auxiliary
equipment should stop.
SERVICE
Normally Closed Models
This valve should be serviced by a trained,
experienced service technician.
1. If the valve is leaking, drain the system
and check to see if the O-ring needs
replacing.
With the manual opener set to AUTO and
the actuator energized, the valve is opened
as shown in Fig. 28A. When the actuator is
de-energized, a spring-return mechanism
drives the valve to the closed position as
shown in Fig. 28B. The valve can also be
opened with no electrical power by moving
the manual opening lever over the stop and
pushing slowly and firmly to the MAN. OPEN
position. The stop permits the valve to be
locked in the open position.
2. If the gear train is damaged, replace
the entire actuator assembly. See the
Installation section. If the motor is
burned out, replace the motor. See
Replacement Parts list in the
TRADELINE® Catalog.
NOTE: Honeywell zone valves are designed
and tested for silent operation in
properly designed and installed
systems; however, water noises can
occur as a result of excessive water
velocity or piping noises can occur in
high temperature (higher than 212°F
(100°C) systems with insufficient water
pressure. Valves are designed for
normal cycling operations. Product life
will be shortened if energized
The valve returns to the automatic position
when the valve is energized.
Auxiliary switch is not energized when
the valve is manually opened.
NOTE: Flow direction arrow is stamped on
the valve body indicating flow
direction from Inlet Port A to Outlet
Port B.
Automation & Control
Honeywell
In Canada
Honeywell Limited/Limitée
35 Dynamic Drive
Toronto, Ontario
M1V 4Z9
1985 Douglas Drive North
Golden Valley
continuously.
MN 55422-3992
9
10
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