User`s manual

FIELD
SUPPLY
EQUIP GND
POWER
SCHEMATIC
208/230-1-60
COOLING FAN LOGIC
+3
G G
ENERGfZED DEENERGIZED
HEATINGFANLOGIC
ENERGIZED DE ENERGIZED
_OFF
HEAT
_HEAT
OAUTO
ON
FIELD-THERMOSTAT
i I
I
I I
I I r
I [i I.
W43 BLK
CAP 2
COMMON-- i i
¢/15YEL
PRIMARY
TRAN1
SECONDARY
24V
W13 BLK
24V SPLICE BOX
W19 WHT
_W20GRN
Z_ w21 RED
CR
BR
W39 RED J2
IGC
o .........
QT
OFM
MG\/
FLAF_ESEN
YEL_ I
0 O BRN_
--W41 GRN-YEL
W32 BAN
W48 BAN
COMP
GROUNDED
TRU STANDOFF
IFM
IDM
W46 BAN
GRN-YEL_
W30BRN
UNIT COMPONENT ARRANGEMENT
OUTDOOR FAN []
SECTIDN
COblPRESSOR INDOOR FAN F_
SECTION SECTION
CAP2
COfIP
c s
R _ ...............
LARGE CHASSIS LOC
EQUIP
_lcAP; ji_,
o"
GASSECTION
m
DISCONNECT
PERNEC
LEGEND
AHA - Adjustable Heat NEC - NationN Electrical
Anticipator Code
BR - Blower Relay OFM - Outdoor-Fan Motor
C - Contactor QT - Quadruple TerminN
CAP - Capacitor RS - RoJiout Switch
CQMP - Compressor Motor SEN - Sensor
CR - Combustion Relay SW - Switch
CS - Centrifugal Switch TRAN - Transformer
EQUIP- Equipment
FS - Flame Sensor _ Field Splice
FU - Fuse
GND - Ground _ Terminal (Marked)
GV - Gas VaNe
GVR - GasVNve Relay _ Terminal(Unmarked)
HS - Hat] Effect Sensor
HV - High Voltage _ Splice
TRAN - Transformer
I - Ignitor _ Splice (Marked)
IDM - Induced-Draft Motor -- Factory Wiring
IFC - Indoor-Fan Contactor
-- -- - Field Control Wiring
IFM - Indoor-Fan Motor
IGC - Integrated Gas Unit _ _ = Field Power Wiring
Controller .... Accessory or
L1 - Line Optional Wiring
LS - Limit Switch
To indicate Common
LS1 - Limit Switch Potential Only, Not
MGV - Main GasVa]ve to Represent Wiring
NOTES:
1 If any of the original wires rum shed are replaced, they must be
replaced with type 90 degree C wire or its equivalent¸
2 See pdce pages for thermostat and subbases
3 Use 75 degree C copper conductors for 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
C00057
Fig. 15--208/230-1-60 Wiring Diagram, Units 48GS and 48GX
2. ]-urn regulator adjustment screw clockwise to increase gas decrease input Manifold pIessure must be between 3.4 and
input_ or turn regulator adjustment screw counterclockwise to 3,6 in, wg. Unsa/_ operation of the unit may result if maul/bid
17