18
CIRCUIT BREAKERS
SUPPL
YV
OL
TA
GE
GR
OUND
LIMIT
LIMIT
BLACK
BLACK
BLACK
BLOWER
MOTOR
PLUG
6
5
4
3
2
1
WIRING DIA
GRAM
Air Handler with F
actory Installed Heat (15 kW)
Legend
Field
Wirin
g
Factory
Wiring:
Lo
w
Vo
ltag
e
High
Vo
ltag
e
NO
TES
1)
The blo
wer motor speed tap connection
ma
y not be as sho
wn.
See the
Installation Instructions.
2) Disconnect all po
wer bef
ore servicing.
3)
Transf
ormer ma
y ha
ve a dual v
oltage
primary tap.
Match the tap position with
the supp
ly
v
oltage used.
4)
If the Internal wiring is replaced
, use on
ly
105
°
C copper wire of the same gauge
.
W2 W1 O Y/Y2 G R C
4 SP
D.
MO
TOR
1
2
3
5
6
4
TRANSFORMER
24
V
BL
AC
K
RE
D
WHIT
E
BLA
CK
WHIT
E
FUSE
L2 COM 2
L2
L2 COM
L1
VS POWE
R
XFMR
COOL
HEA T
24 VA
C
RE
D
COM
GREY
P3
Y1
HEA
TER KIT
PLUG
3
2
1
6
5
4
7
710588B
(Replaces 710588A)
BLACK
BLACK
RED
1 = COM
2 = HIGH
3 = MED HIGH
4 = MED LO
W
5 = LO
W
6 = OPEN
1 = CO
M
2 = HIGH 3 = MED HIGH 4 = MED LO
W
5 = LO
W
6 = OPEN
BR
OW
N
GREY
ORANGE
BLUE
YELLOW
YELLO
W
BLUE
ORANGE
GREY
RELA
Y
RELA
Y
RELA
Y
ELEMENT
ELEMENT
ELEMENT
RED
RED
RED
PO
WER
PLUG
RED
RED
RED
RED
BLACK
BLACK
BLACK
¢710588J¤
Figure 13. Wiring Diagram for B5BV Series Electric furnace Equipped With 15 kw heater Kit
