User`s manual

OFM
COMP
COOLING FAN LOGIC
0 T T+30
G G
ENERGIZED DE ENERGIZED
HEATING FAN LOGC
0 45 T T÷30
W BR W BR
ENERGLZED DE ENER®JZED
RC
(7
° AUTO
ON
FIELD-THERMOSTAT
COMMON------
TRAN1
-W13 BLK
1 24V SPLICE BOX
i --
I I ---WSWNT
-W20 GRN
i i r
..... W21 RED
--I
I
I
_q i
i
i
i
i __
UNIT COMPONENT ARRANGEMENT
OUTDOOR FAN []
SECTION
COMPRESSOR INDOORFAN F_
SECTON SECTION
L2_
COMP
C
S
R
EQUIP
FROMCONPl_Ap31 11(
OLo
GASSECTION
DISCONNECT
PEREC
IFM
IDM
4_SECONDARY]
24V
OR
BR
W39 RED
IGC
; F-_,j
r
!-]
J_
5 AMF
_z- -- 't0
BLU_--1
to
MGV
,R
-IF] --W35 GRA
, W34 BRN
FLAMESEN
--O O--- BRN--_
-W41 GRN-YEL
-- W32 BRN
_W46 BRN
W46BRN--
GROUNDED
TRUSTANDOFF
W30BRN-
LEGEND
AHA - Adjustable Heat NBC - National Electrical
Anticipator Code
BR - Blower Relay OFM - OutdooFFan Motor
C - Contactor QT - Quadruple Terminal
CAP - Capacitor RS - Rollout Switch
COMP- Compressor Motor SEN - Sensor
CR - Combustion Relay SW - Switch
CS - Centrifugal Switch TRAN - Transformer
EQUIP- Equipment
FS - Flame Sensor FieldSplice
FU - Fuse
GND - Ground (_D Terminal (Marked)
GV - Gas \/alve
GVR - GasValve Relay O Terminal (Unmarked)
HS - Hall Effect Sensor
HV - High Voltage _ Splice
TRAN - Transformer
I - Ignitor _ Splice (Marked)
IDM - Induced-Draft Motor -- FactoryWiring
IFC - Indoor-Fan Contactor
-- -- - FieldControl Wiring
IFM - Indoor-Fan Motor
IGC - Integrated Gas Unit _ _ - Field Power Wiring
Controller .... Accessory or
LI - Line Optional Wiring
LS - Limit Switch _ To Indicate Common
LS1 - Limit Switch Potential Only, Not
MGV - Main GasValve to Represent Wiring
NOTES:
1 If any of the original wires furnished are replaced, they must be
replaced with type 90 degree C wire or its equivalent
2 See price pages for thermostat and subbases
3 Use 75 degree C copper conductors fo_ field installation
4 For high speed IFM, disconnect RED wire from IGC terminal BM
and connect BLK wire from IFM. For medium speed, disconnect
RED wire from IGC terminal BM and connect BLU wire from IFM
Fig. 17480-3-60 Wiring Diagram, Units 48GS and 48GX
19
C00059