20
Motor Settings
WIRING DIAGRAM
Variable Speed Air Handler
High Voltage
Low Voltage
High Voltage
Factory Wiring
Field Wiring
NOTES:
1) Not suitable for systems exceeding120V to ground
2) If any internal wiring must be replaced, it must be
replaced with 105C wire of the same gauge.
3) When connecting accessories to circuitboard,
remove the jumper supplied with the unit.
4)
For A/C applications, connect "O" to "Y".
1
2
3
5
4
GREEN
W2
W1
O
Y/Y2
G
R
C
24VAC
COM
TRANSFORMER
POWER SUPPLY
CUT WIRES TO
REMOVE PLUG HOUSING
WHEN HEATER KIT IS
NOT INSTALLED
24V
WHITE
BLACK
GREY
BLACK
WHITE
MOTOR
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
ORANGE
WHITE
GREY
RED
GREEN
WIRE
HARNESS
240/208
BLOWER BOARD
CONTROL BOARD
FUSE
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
GCO
HUM
Y1
WR
HUM
Y/Y2
L2 COM 2
L2
L2COM
L1
VS POWER
XFMR
COOL
HEAT
Y1
HEATER PLUG
P3
123
4
5
6 78
YELLOW
BLUE
RED
JUMPER
SELECTOR SWITCHES
NOTE: 1 = ON
0 = OFF
710544D (Replaces 710544C)
¢710544¬¤
CFM
Switch
Number
A-Cabinet B-Cabinet C-Cabinet
1234
540 720 1075
0001
600 800 1225
0000
660 880 1380
0010
715 850 1135
1001
790 945 1295
1000
870 1040 1460
1010
915 1085 1525
0101
955 1140 1625
1101
1015 1205 1740
0100
1060 1325 1960
0110
1075 1265 1860
1100
1165 1390 2090
1110
Nom.
KW
CFM
Switch
Number
A-Cabinet B-Cabinet C-Cabinet
56
0-5 700 700 -
00
0-9- - 700
00
6-9 800 --
10
6-10 - 800 -
10
10-14 950 --
01
10-14 --950
10
11-15 - 950 -
01
15 1100- -
11
15-20 --1100
01
16-20 - 1100-
11
21-30 --1500
11
Minimum Electric Heat Air-Flow
Delay
Desc
Switch
Number
78
Delay A
00
Delay B
01
No Delay
10
De-Hum
11
Delay Settings
(all models)
(Modular blower supports 20kW heat max.)
Figure14.WiringDiagramforB5BMSeriesAirHandler(VariableSpeed)
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