255427-YTG-F-1006
DESCRIPTION
This unique modular system allows the flexibility to handle any
application. These versatile coils and blowers may be used for
upflow, downflow, or horizontal left or right applications. They
may be combined to function as a cooling only unit or with a heat
pump including electric heat for 1 and 3 phase applications. The
blower and electric heater could be used as stand alone electric
furnaces.
FEATURES
TECHNICAL GUIDE
BLOWERS - Models to match any air flow or voltage require-
ment. The compact size allows easy installation. Blowers are
sized to deliver design air quantity both efficiently and quietly.
The motors provide a selection of air quantities to match any
application. All models include a one-minute blower off delay as
standard to enhance system efficiency ratings. The durable, pre-
painted steel protects the unit against rust and corrosion. All
models have 1 inch foil face fiber glass insulation, providing a
thermal insulation value of R-4.2.
MODELS: MV
MODULAR VARIABLE SPEED AIR HANDLERS
FOR USE WITH SPLIT SYSTEM
COOLING & HEAT PUMP
1200 - 2000 CFM BLOWERS
3 - 5 TON COILS
COILS - Staggered rows of rifled copper tubes are mechanically
expanded into enhanced surface aluminum fins to provide high
heat transfer and long-lasting quality. The MC multi-position
coils may be used for upflow, downflow, and horizontal left or
right applications. Coil cabinets are insulated with 3/4" foil face
insulation to prevent sweating.
OPTIONAL 1 & 3φ ELECTRIC HEATERS
ELECTRIC HEATERS - Both single and three phase electric
heater models are available to match any requirement. All heat-
ers include nickel-chromium elements with a 5-year limited war-
ranty on 1 Ø heating elements and 1 year limited warranty on 3
Ø heating elements. Sequential operation is provided to control
heaters in all models. Circuit breakers are used in 208/230 volt,
single-phase heaters of 15 KW and larger.
Models equipped with circuit breakers may be altered in the field
to use multi-source power supply. Over-temperature limit
switches provide protection from airflow loss with fusible link
backup protection.
ACCESSORIES - A full line of matching accessories available
for use with the blower and coils to allow any type application.
LIMITATIONS - These units must be wired and installed in
accordance with all national and local safety codes.
Voltage limits are as follows:
NORMAL OPERATING
AIR HANDLER VOLTAGE
VOLTAGE RANGE*
208/230-1-60
187 - 253
* Rated in accordance with ARI Standard 110, utilization range “A”.
Air flow must be within the minimum and maximum limits approved for electric
heat, evaporator coils and outdoor units.
ISO 9001
Certified Quality
Management System
Due to continuous product improvement, specifications
subject to change without notice.
Additional rating information can be found at
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
255427-YTG-F-1006
COOLING CAPACITY - COIL ONLY
MBH @ Evaporator Temperature and
Corresponding Pressure °F / PSIG
Blower
Model
Coil
Model
Rated
CFM
Entering Air °F
(Dry / Wet Bulb)
35 / 61.5
40 / 68.5
45 / 76.0
50 / 84.0
Multi-Position - Upflow / Downflow / Horizontal
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
85 / 72
80 / 67
75 / 62
70 / 57
41.5
36.2
29.1
24.1
52.0
41.7
32.5
27.9
46.8
37.4
28.9
25.1
53.7
43.0
33.1
28.8
91.7
73.4
57.3
49.2
88.4
70.8
55.2
47.4
100.5
80.4
62.7
53.9
119.9
96.0
74.0
64.3
124.8
99.9
77
37.8
32.4
25.3
21.5
47.3
36.8
27.3
25.8
42.4
33.3
24.6
23.3
48.4
38.0
28.1
26.5
78.4
61.5
45.6
43.0
76.0
59.4
43.9
41.5
86.4
67.5
49.9
47.2
101.0
79.2
58.6
55.4
105.2
82.5
61.1
57.7
110.5
86.6
64.2
60.6
33.7
28.6
24.0
18.7
42.3
32.3
29.8
23.8
37.6
29.4
21.7
21.7
43.5
33.3
24.5
24.5
68.1
52.0
38.4
38.4
63.3
48.4
35.8
35.8
72.0
55.0
40.7
40.7
80.0
62.6
46.2
46.2
85.3
65.2
48.1
48.1
89.6
68.5
50.5
50.5
29.5
24.5
19.2
15.8
37.3
27.4
22.2
22.2
33.0
24.3
19.6
19.6
37.5
27.7
22.4
22.4
52.3
38.6
31.2
31.2
50.0
37.0
29.9
29.9
56.8
42.1
34.0
34.0
62.2
45.8
37.0
37
MC30B**H
MC36B**H
MC48D**H
MC60D**H
MC61D**H
MC42C**H
MC48C**H
MC48D**H
MC60D**H
MC61D**H
1025
1250
1125
1275
1450
1400
1650
1725
2000
2200
MV12B
MV12D
MV16C
MV20D
64.7
47.7
38.6
38.6
67.9
50.1
40.5
40.5
66.9
131.0
104.9
81.8
70.2
Unitary Products Group
3
255427-YTG-F-1006
PHYSICAL & ELECTRICAL DATA
Model
MV12B
10 x 7
1/2
MV12D
10 x 10
1/2
MV16C
10 x 10
3/4
MV20D
10 x 10
1
Blower - Diameter x Width
HP
Motor
Nominal RPM
1200
1200
1200
1200
Voltage
208/230
Amps
Full Load (230)
Type
4.3
4.3
5.0
7.0
DISPOSABLE OR PERMANENT
Filter
Size
16 x 20 x 1
1PF0601BK
1FR0717
68 / 62
22 x 20 x 1
1PF0603BK
1FR0724
88 / 82
20 x 20 x 1
1PF0602BK
1FR0721
75 / 69
22 x 20 x 1
1PF0603BK
1FR0724
93 / 87
Permanent Type Kit
Filter Rack
Shipping / Operating Weight (lbs.)
COILS
Refrig.
Application Conn.
Types
Face
Fin
Per
In.
Operating
Weight
(Lbs.)
Rows
Deep
Tube
Geometry
Tube
Dia.
Fin
Type
Model
Area
Coil Size
TXV
(Sq. Ft.)
MC18A3XH1
MC18A2AH1
MC18B3XH1
MC18B2AH1
MC24A3XH1
MC24A2AH1
MC24B3XH1
MC24B2AH1
MC30A3XH1
MC30A2AH1
MC30B3XH1
MC30B2AH1
MC35B3XH1
MC35C3XH1
MC36A3XH1
MC36A2AH1
MC36B3XH1
MC36B2AH1
MC36C3XH1
MC36C2AH1
MC42B3XH1
MC42B2CH1
MC42C3XH1
MC42C2CH1
MC48C3XH1
MC48C2CH1
MC48D3XH1
MC48D2CH1
MC60D3XH1
MC60D2CH1
MC61D3XH1
MC61D2CH1
None
2A
3.40
3.40
4.38
4.38
4.38
4.38
3.90
4.86
4.86
4.86
5.83
5.83
5.35
5.35
5.83
6.80
2
14
14
14
14
14
14
12
14
14
14
14
14
12
12
12
12
(2) 14 x 17.5
(2) 14 x 17.5
(2) 18 x 17.5
(2) 18 x 17.5
(2) 18 x 17.5
(2) 18 x 17.5
(2) 16 x 17.5
(2) 20 x 17.5
(2) 20 x 17.5
(2) 20 x 17.5
(2) 24 x 17.5
(2) 24 x 17.5
(2) 22 x 17.5
(2) 22 x 17.5
(2) 24 x 17.5
(2) 28 x 17.5
53
53
56
56
56
56
65
64
65
65
72
72
82
82
86
98
None
2A
2
2
2
2
2
3
2
2
2
2
2
3
3
3
3
None
2A
None
2A
None
2A
None
2A
None
None
None
2A
Cooling /
Sweat
1 x 0.866
3/8
Enhanced
Heat Pump
None
2A
None
2A
None
2C
None
2C
None
2C
None
2C
None
2C
None
2C
4
Unitary Products Group
255427-YTG-F-1006
ELECTRICAL DATA - 208/230-1-60
Max.
Total Heat1
MBH
208V 240V 208V 240V
KW Staging
W2 Only
Min.
Speed
Tap
Model
Heater Model*
KW
W1 Only
208V
W1 + W2
208V 240V
Static
240V
4.8
3.75
4.8
4.8
4.8
3.75
4.8
4.8
4.4
4.8
4.8
3.75
4.8
4.8
4.4
4.8
4.8
4.8
4.4
4.8
4.8
208V
3.6
5.6
7.2
7.2
3.6
5.6
7.2
7.2
6.6
7.2
3.6
5.6
7.2
7.2
6.6
7.2
7.2
7.2
6.6
7.2
10.8
240V
4HK*6500506
4HK*6500806
4HK*6501006
4HK165N1506
4HK*6500506
4HK*6500806
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK*6500506
4HK*6500806
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK16502506
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
Heat-D
3.6
5.6
7.2
4.8
7.5
9.6
12.3
19.2
24.6
16.4
25.6
32.8
49.1
16.4
25.6
32.8
49.1
60.1
65.5
16.4
25.6
32.8
49.1
60.1
65.5
32.8
49.1
60.1
65.5
81.9
3.6
2.8
3.6
3.6
3.6
2.8
3.6
3.6
3.3
3.6
3.6
2.8
3.6
3.6
3.3
3.6
3.6
3.6
3.3
3.6
3.6
4.8
7.5
9.6
9.6
4.8
7.5
9.6
9.6
8.8
9.6
4.8
7.5
9.6
9.6
8.8
9.6
9.6
9.6
8.8
9.6
14.4
3.6
5.6
4.8
7.5
MV12B
7.2
9.6
10.8 14.4 36.9
10.8
3.6
14.4
4.8
3.6
5.6
7.2
4.8
7.5
9.6
12.3
19.2
24.6
5.6
7.5
7.2
9.6
MV12D
10.8 14.4 36.9
13.2 17.6 45.1
14.4 19.2 49.2
10.8
13.2
14.4
3.6
14.4
17.6
19.2
4.8
3.6
5.6
7.2
4.8
7.5
9.6
12.3
19.2
24.6
5.6
7.5
7.2
9.6
MV16C
MV20D
10.8 14.4 36.9
13.2 17.6 45.1
14.4 19.2 49.2
10.8
13.2
14.4
7.2
14.4
17.6
19.2
9.6
7.2
9.6
24.6
10.8 14.4 36.9
13.2 17.6 45.1
14.4 19.2 49.2
18.0 24.0 61.5
10.8
13.2
14.4
18.0
14.4
17.6
19.2
24
1. See conversion table on Page 7.
May be 0 (no breaker) or 1 (with breaker).
*
ELECTRICAL DATA - 208/230-3-60
Total Heat1
MBH
KW Staging
W2 Only
Min.
Speed
Tap
Heat Kit -
Models
Max.
Static
KW
W1 Only
W1 + W2
Three Phase
208V 240V 208V 240V 208V 240V 208V 240V 208V 240V
MV12BN21
MV12DN21
4HK06501025
4HK06501025
4HK06501525
4HK06501825
4HK06501025
4HK06501525
4HK06501825
4HK06501025
4HK06501525
4HK16502525
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Heat-D
Heat-D
7.2
7.2
9.6
9.6
24.6
24.6
36.9
44.7
24.6
36.9
44.7
24.6
36.9
61.4
32.8
32.8
49.1
58.7
32.8
49.1
58.7
32.8
49.1
81.4
7.2
7.2
9.6
9.6
7.2
7.2
9.6
9.6
7.2
7.2
9.6
9.6
Heat-D 10.8
Heat-D 12.9
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
Heat-D
7.2
MV16CN21
MV20DN21
Heat-D 10.8
Heat-D 12.9
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
10.8
12.9
7.2
14.4
17.2
9.6
Heat-D
7.2
Heat-D 10.8
Heat-D 18.0
14.4
24.0
10.8
9.0
14.4
12.0
10.8
18.0
14.4
24.0
10.8
18.0
14.4
24.0
1. See conversion table on Page 7.
Unitary Products Group
5
255427-YTG-F-1006
ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) - COPPER WIRE 208/230-1-60
Field Wiring
Heater Model1,*
Max. O.C.P.2 Amps/Type
Model
Heater Amps
240V
20.0
Ampacity Min. Circuit
Wire Size - AWG 75°C
208V
27.54
39.73
49.21
70.88
27.54
39.73
49.21
70.88
85.32
92.54
29.29
41.48
50.96
72.63
87.07
94.29
53.08
74.75
89.19
96.42
118.08
240V
30.38
44.50
55.38
80.38
30.38
44.50
55.38
80.38
97.00
105.38
31.88
46.00
56.88
81.88
98.50
106.88
58.75
83.75
100.38
108.75
133.75
208V
30
240V
35
208V
10
8
240V
8
4HK*6500506
4HK*6500806
4HK*6501006
4HK165N1506
4HK*6500506
4HK*6500806
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK*6500506
4HK*6500806
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK*6501006
4HK16501506
4HK16501806
4HK16502006
4HK16502506
31.3
40
45
8
MV12B
40.0
50
60
8
6
60.0
90
90
4
3
20.0
30
35
10
8
8
31.3
40
45
8
40.0
50
60
8
6
MV12D
60.0
90
90
4
3
73.3
90
100
125
35
4
3
80.0
100
30
3
1
20.0
10
8
8
31.3
45
50
8
40.0
60
60
6
6
MV16C
MV20D
60.0
90
90
3
3
73.3
90
100
125
60
3
2
80.0
100
60
3
1
40.0
6
6
60.0
90
90
3
3
73.3
90
110
125
150
3
2
80.0
100
125
3
1
100.0
1
1/0
1. 30 KW 3 phase not approved for single source power supply.
2. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
* May be 0 (no breaker) or 1 (with breaker).
ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) - COPPER WIRE 208/230-3-60
Field Wiring
Heater
Amps
240V
Heat Kit -
Three Phase
Max. O.C.P.1 Amps/Type
Models
Min. Circuit Ampacity
75°C Wire Size - AWG
208V
30.9
30.9
43.4
50.6
32.6
45.1
52.4
34.8
47.3
240V
34.3
34.3
48.8
57.1
35.1
49.6
58.0
37.6
52.1
208V
35
240V
35
208V
240V
12B
12D
4HK06501025
4HK06501025
4HK06501525
4HK06501825
4HK06501025
4HK06501525
4HK06501825
4HK06501025
4HK06501525
23.1
23.1
34.7
41.4
23.1
34.7
41.4
23.1
34.7
8
8
8
8
8
8
6
8
8
8
8
8
6
8
8
6
8
6
35
35
45
50
50
60
35
35
16C
20D
45
50
60
60
35
40
50
60
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
TABLE 1: Electrical Data - (For Multi-Source Power Supply) - Copper Wire - 208/230-3-60
Max. O.C.P.1 Amps/Type
Minimum Circuit Ampacity
75°C Wire Size - AWG
Heater
Model
Circuit
2nd
208/240 208/240 208/240 208/240 208/240 208/240 208/240
- / - 45 / 45 35 / 40 - / - 8 / 8 8 / 8 - / -
Models
1st
2nd
3rd
1st
3rd
1st
2nd
3rd
208/240
41.0 / 44.9
208/240
31.3 / 36.1
20D
4HK16502525
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
6
Unitary Products Group
255427-YTG-F-1006
ELECTRICAL DATA (FOR MULTI SOURCE POWER SUPPLY) - COPPER WIRE 208/230-1-60
1
Min. Circuit Ampacity
75°C Wire Size - AWG
Max. O.C.P. Amps/Type
Circuit
Circuit
Circuit
Heater
Model
Model
1st
208/240
2nd
3rd
1st
2nd
3rd
1st
2nd
3rd
208/240
208/240
208/240
50 / 60
50 / 60
50 / 60
50 / 60
50 / 60
50 / 60
50 / 60
60 / 60
50 / 60
60 / 60
50 / 60
208/240
25 / 25
25 / 25
40 / 50
45 / 50
25 / 25
40 / 50
45 / 50
25 / 25
40 / 50
45 / 50
45 / 50
208/240
208/240
8 / 6
8 / 6
8 / 6
8 / 6
8 / 6
8 / 6
8 / 6
6 / 6
8 / 6
6 / 6
8 / 6
208/240
10 / 10
10 / 10
8 / 8
208/240
MV12B
MV12D
4HK165N1506 49.2 / 55.4 21.7 / 25.0
4HK16501506 49.2 / 55.4 21.7 / 25.0
4HK16501806 45.6 / 51.2 39.7 / 45.8
4HK16502006 49.2 / 55.4 43.3 / 50.0
4HK16501506 51.0 / 56.9 21.7 / 25.0
4HK16501806 17.3 / 52.7 39.7 / 45.8
4HK16502006 51.0 / 56.9 43.3 / 50.0
4HK16501506 53.1 / 58.8 21.7 / 25.0
4HK16501806 49.5 / 54.6 39.7 / 45.8
4HK16502006 53.1 / 58.8 43.3 / 50.0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
8 / 8
–
–
10 / 10
8 / 8
–
MV16C
MV20D
–
–
–
8 / 8
–
–
10 / 10
8 / 8
–
–
–
–
–
8 / 8
4HK16502506 49.3 / 56.5 43.3 / 50.0 21.7 / 25.0
25 / 25
8 / 8
10 / 10
1. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
KW & MBH CONVERSIONS
208-VOLT
230-VOLT
240-VOLT
240-VOLT
.751
.918
FOR
OPERATION MULTIPLY
TABULATED KW & MBH BY
ELECTRICAL DATA - COOLING UNIT ONLY (60 Hz)
Total Motor Amps
60 Hertz
Minimum Circuit Ampacity
60 Hertz
Minimum Wire Size
AWG @ 75°C
Max. O.C.P.1 Amps/Type
MODEL
208V
4.7
230V
4.3
208V
5.9
230V
5.4
MV12B
MV12D
MV16C
MV20D
15
15
15
15
14
14
14
14
4.7
4.3
5.9
5.4
6.1
5.0
7.6
6.9
7.8
7.0
9.7
8.8
1. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
POWER WIRING
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
3 PHASE (10 - 15 KW)
1 PHASE ELECTRIC HEAT
TYPICAL WIRING WITHOUT ELECTRIC HEAT
GND.
LUG
WITH CIRCUIT BREAKER
AS SHIPPED FROM FACTORY
SINGLE SOURCE
GND. LUG
GND.
LUG
GND. LUG
(2.5 - 25 KW) - 25 KW SHOWN
POWER
SUPPLY
GND. LUG
GND.
LUG
POWER
SUPPLY
1 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
& BREAKER BAR REMOVED
TERMINAL
BLOCK
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
SINGLE SOURCE (2.5 - 10 KW)
MULTI-SOURCE (15 - 25 KW) - 25 KW SHOWN
GND. LUG
POWER
SUPPLY
GND.
LUG
GND.
LUG
GND. LUG
(JUMPER BAR)
POWER
SUPPLY 1
MAY BE 1, 2, OR 3
CIRCUIT BREAKERS
POWER
SUPPLY 2
POWER
SUPPLY
POWER
SUPPLY 3
POWER WIRING (208/230-1-60)
TERMINAL
BLOCK
NOTE: USE ONLY COPPER CONDUCTORS
MAY BE 1, 2, OR 3
CIRCUIT BREAKERS
CONNECT LEADS WITH WIRE NUTS
(TYPICAL ALL HEAT KITS)
Line Power
Unitary Products Group
7
255427-YTG-F-1006
Filter Rack - One of the following external filter rack accesso-
ries: 1FR07* or 1FR08* must be used when unit is installed
for application outlined.
ACCESSORIES
Refer to Price Manual for specific model numbers.
Electric Heaters - Models shown under Electrical Data
include sequencers and temperature limit switches and fus-
ible links for safe, efficient operation. Circuit breakers are pro-
vided where shown.
Combustible Floor Base - If an electric heat accessory
which is rated for greater than zero clearance to combustible
surfaces is installed in these air handlers in the downflow
operating positions on a combustible floor, one of the follow-
ing combustible floor base accessories is required: 1FB1817,
1FB1821, or 1FB1824.
Suspension Kit - Suspension Kit Model 1BH0601 is
designed specifically for upflow application of the units con-
tained in this technical guide. For suspension of these units in
horizontal applications, it is recommended to use angle sup-
port brackets with threaded rods at locations shown in air
handler installation instructions.
1/2”
3/4”
1/2”
1-1/2”
2” Max
Thick
Filter
1”
3-1/2”
C
D
7/8”
1/2”
19-7/8”
3-1/2”
B
1/2”
(All four sides)
NOTE: May be used with up to a 2” filter.
Required for downflow application.
May also be used in upflow application.
22”
A
16-1/2”
20”
23-1/2”
21”
22”
All dimensions are inches. They are subject to change
without notice. Certified dimensions will be provided upon
request.
A
ACCESSORY FOOTPRINT
FILTER RACK ACCESSORY
Filter Rack Model
Rack Dimensions Inches
Filter Dimensions Inches
Used With
Multi-Position Horizontal Only
A
B
C
D
Width
17-1/2
21
Length
22
Thickness
1FR0817
1FR0821
1FR0824
1FR0717
1FR0721
1FR0724
MV12B
MV16C
17-1/2
21
16-3/8
19-7/8
23-3/8
15-1/2
19
21
21
21
1
1
1
22
MV12D, MV20D
24-1/2
22-1/2
24-1/2
22
8
Unitary Products Group
255427-YTG-F-1006
AIR HANDLER
DEPTH
FRONT
DOWNFLOW
AIR HANDLER
FLOOR
APPROX. 1/2”
CLEARANCE
ALL AROUND
10-47/64
PLENUM
WARM AIR PLENUM
WITH 1” FLANGES
1
12-1/2
FLOOR OPENING
B
A
FIBERGLASS
INSULATION
FIBERGLASS TAPE
UNDER FLANGE
A
AIR HANDLER
WIDTH
B
A
COMBUSTIBLE
FLOOR BASE
FLOOR
COMBUSTIBLE FLOOR
BASE ACCESSORY
B
PLENUM
APPROX. 1/2”
CLEARANCE
ALL AROUND
1
1
C
FLOOR OPENING
All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.
COMBUSTIBLE FLOOR BASE ACCESSORY
Dimensions
Floor Base Model
Used with
A
B
C
D
1FB1817
1FB1821
1FB1824
MV12B
MV16C
19.9
23.4
26.9
18.0
21.5
25.0
14.9
18.4
21.9
16.9
20.4
23.9
MV12D, MV20D
Unitary Products Group
9
255427-YTG-F-1006
COOLING AIRFLOW DATA - MV MODELS
HIGH / LOW SPEED COOLING AND HEAT PUMP CFM
12D Air Handler
12B Air Handler
JUMPER SETTINGS
m3/min
m3/min
CFM
CFM
High
1307
1080
1270
943
Low
882
756
862
689
786
726
632
594
668
565
624
567
High
Low
25.0
21.4
24.4
19.5
22.3
20.6
17.9
16.8
18.9
16.0
17.7
16.1
High
1366
1097
1312
957
Low
869
717
856
646
761
703
580
520
629
495
567
488
High
38.7
31.1
37.2
27.1
33.0
29.8
24.4
20.9
26.2
18.6
23.5
16.8
Low
24.6
20.3
24.2
18.3
21.5
19.9
16.4
14.7
17.8
14.0
16.1
13.8
COOL Tap
ADJ Tap*
37.0
30.6
36.0
26.7
32.5
29.7
24.6
21.8
26.4
19.6
24.1
18.5
A
B
A
B
A
C
B
D
C
D
C
D
B
B
A
A
C
B
C
B
A
A
C
C
1146
1050
870
1167
1051
863
771
739
931
927
693
658
851
830
655
594
16C Air Handler
20D Air Handler
JUMPER SETTINGS
m3/min
m3/min
CFM
CFM
High
1920
1699
1884
1558
1714
1451
1403
1288
1336
1214
1239
1098
Low
1321
1189
1296
1094
1193
1037
1009
947
High
Low
37.4
33.7
36.7
31.0
33.8
29.4
28.6
26.8
27.7
25.1
25.9
23.8
High
2209
2022
2178
1798
1965
1843
1596
1700
1608
1493
1430
1334
Low
1394
1394
1381
1378
1226
1143
1226
1066
1023
967
High
62.6
57.3
61.7
50.9
55.6
52.2
45.2
48.1
45.5
42.3
40.5
37.8
Low
39.5
39.5
39.1
39.0
34.7
32.4
34.7
30.2
29.0
27.4
25.8
24.8
COOL Tap
ADJ Tap*
54.4
48.1
53.3
44.1
48.5
41.1
39.7
36.5
37.8
34.4
35.1
31.1
A
B
A
B
A
C
B
D
C
D
C
D
B
B
A
A
C
B
C
B
A
A
C
C
978
888
915
911
839
877
All CFM’s are shown at 0.5” w.c. external static pressure.These units have variable speed motors that automatically adjust to provide constant CFM from 0.0” to
0.6” w.c. static pressure. From 0.6” to 1.0” static pressure, CFM is reduced by 2% per 0.1” increase in static. Operation on duct systems with greater than 1.0” w.c.
external static pressure is not recommended.
NOTE: At some settings, LOW COOL and/or LOW HEAT airflow may be lower than what is required to operate an airflow switch on certain models of electronic air
cleaners. Consult the instructions for the electronic air cleaner for further details.
* The ADJ “D” tap should not be used.
HEATING AIRFLOW DATA - MV MODELS
HIGH / LOW SPEED COOLING AND HEAT PUMP CFM
12B Air Handler
12D Air Handler
JUMPER SETTINGS
m3/min
m3/min
CFM
CFM
CFM
CFM
High
1270
943
Low
791
714
643
567
High
Low
22.4
20.2
18.2
16.1
High
1312
957
Low
762
668
591
488
High
37.2
27.1
26.2
18.6
Low
21.6
18.9
16.7
13.8
COOL Tap
ADJ Tap*
36.0
26.7
26.4
19.6
A
B
C
D
A
A
A
A
931
927
693
658
16C Air Handler
20D Air Handler
JUMPER SETTINGS
m3/min
m3/min
High
1884
1558
1336
1214
Low
1217
1065
823
High
Low
34.5
30.2
23.3
20.6
High
2178
1798
1608
1493
Low
1217
1036
748
High
61.7
50.9
45.5
42.3
Low
34.5
29.3
21.2
15.6
COOL Tap
ADJ Tap*
53.3
44.1
37.8
34.4
A
B
C
D
A
A
A
A
727
551
All CFM’s are shown at 0.5” w.c. external static pressure.These units have variable speed motors that automatically adjust to provide constant CFM from 0.0” to
0.6” w.c. static pressure. From 0.6” to 1.0” static pressure, CFM is reduced by 2% per 0.1” increase in static. Operation on duct systems with greater than 1.0” w.c.
external static pressure is not recommended.
NOTE: At some settings, LOW COOL and/or LOW HEAT airflow may be lower than what is required to operate an airflow switch on certain models of electronic air
cleaners. Consult the instructions for the electronic air cleaner for further details.
* The ADJ “D” tap should not be used.
10
Unitary Products Group
255427-YTG-F-1006
APPLICATION FACTORS - RATED CFM VS. ACTUAL CFM
% OF RATED AIR FLOW
CAPACITY FACTOR
80%
0.96
90%
0.98
RATED CFM
1.00
110%
1.02
120%
1.03
Horizontal Right
Horizontal Left
Up Flow
Down Flow
Typical Applications with MC Multi-Position Coils
MA SERIES - Air Handler Control Wiring
Typical A/C - Cooling only Applications
MA SERIES - Air Handler Control Wiring
Typical A/C with Electric Heat Applications
AIR HANDLER
BOARD
AIR HANDLER
THERMOSTAT
1 - STAGE
BOARD
THERMOSTAT
1 - STAGE
AIR CONDITIONING
AIR CONDITIONING
R
G
R
G
R
G
Y
R
G
Y
Y / Y2
Y
Y / Y2
Y
W1
W2
C
Y1
Y1
W2
W2
W2
*
*
W1
O
W1
O
HUMIDISTAT
HUMIDISTAT
W1
C
HUM
X / L
COM
HUM
X / L
COM
C
C
COOLING MODELS WITH ELECTRIC HEAT
CONTROL WIRING - MA Series - Air Handler & New UPG HP Systems
Two Stage H/P with York Guard VI Board & Copeland “Ultra Tech”
Conventional Application - Not Hot Heat Pump
2 - STAGE SCROLL
HEAT PUMP
AIR HANDLER
BOARD
THERMOSTAT
R
G
R
G
R
Y2
Y2
Y / Y2
Y1
Y2 OUT
Y1
Y1
W2 OUT
W2
W1
E
W1 OUT
W
O
W
O
O
*
HUMIDISTAT
HUM
X / L
BS
X / L
C
X / L
C
COM
CONTROL WIRING - MV SERIES
Unitary Products Group
11
NOTES
Subject to change without notice. Printed in U.S.A.
255427-YTG-F-1006
Copyright © by York International/JCI. 2006. All rights reserved.
Supersedes: 255427-YTG-E-0906
Unitary
Products
Group
5005
York
Drive
Norman
OK
73069
|