40dq500784 rev. c – Bryant FA4A User Manual
Page 22
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A U G / 1 4 / 2 0 0 8 / T H U 0 3 : 5 0
UTC TECH PUB
F A X N o , 3 1 7 2 4 0 5 6 6 2
P . 0 2 2
1-2
1-1
FIELD POWER SUPPLY
SCHEMATIC DIAGRAM
B L K —
h
5 ) -
b
L
k
A P [ ^
BLK^ SEQ
^
/(OI=TI
o
W
a
1>,HTR-2 1 ft.3
SEQ
/ipT'CJNAL>^HTB.1
,g ,
6LK—<2H
_ r
note
#2
QT
—VlO^LS-2
— TRANS
FH(3>—RED
N H ---------------
D E !
I
o M --------------- ^
R 0 I
!
L^h-
^
-----BRN
□RN
COMPONENT ARRANGEMENT
BED
BRN
( IFM
)-
YEL r------------^
BLK -\ _ y—
arm
-?, 9 1^^ 9
^^E_NqTE^^-^-------
REm£pWE^WtplNG [y
- LEGEND -
““ FIELD POWER WIRING
" - FIELD GROUND WIRING
-----FIELD CONTROL WIRING
FIELD SPLICE
-•- JUNCTION
O
MARKED CONNECTION
o UNMARKED CONNECTION
FC
FAN CAPACITOR
FR
FAN RELAY
HTR HEATER
IFM
indoor
fan
motor
LS
LIMIT SWITCH
QT
QUAD
terminal
SEQ SEQUENCER
TB TERMINAL BLOCK
TRANS TRANSFORMER
(OPTIONAL)
(
fl
___ FUS!BLE_L1N1^^
---- WIRE SLEEVE
NOTES:
1. TRANSFORMER PIGTAILS:
BLUE 20$V; RED 2ggV; INSULATE
UNUSED LEAD.
2. FAN MOTOR
p
IGT
a
I
ls
: RED LOW;
BLACK HIGH, INSULATE UNUSED
LEAD.
3. FAN MOTOR THERMALLY
PROTECTED.
4. SUITABLE FOR USE WITH COPPER
OR COPPER CLAD ALUMINUM
CONDUCTORS RATED FOR TS'-C
MINIMUM. FOR COPPER USE 6
AWG. FOR COPPER CLAD
ALUMINUM USE 4 AWG,
40DQ500784 REV. C
u
Fig. 18—FD3A Typical Wiring Diagram
-72^
A94376