I + ]
UNF
• 8N_0II_CT
rIEL0++ I °LN
P0+EN+ YELSUPPLY --_ I BLU
- -h-- -%Z]
II I EQUIP QNO
-
+ ELECTRIC HEAT
t__..___,l....
• SECTION LABEL
°NO....
: _ -
TRANI
TO C81 TO 24V
(32 A CNEMATIC
LEGEND FOR
FIG. 38 AND 39
AHA -- Adjustable Heat Anticipator
AL -- Ambient Lockout
---A -- Circuit A
---B -- Circuit B
C -- Compressor Contactor
CAP -- Capacitor
CB -- Compressor Circuit Breaker
CO -- Cooling Compensator
CCH -- Crankcase Heater
CCHR -- Crankcase Heater Relay
CCHS -- CrankcaseHeaterSolenoid
CLO -- Compressor Lockout
COMP -- Compressor
CT BRK-- Circuit Breaker
ECB -- Economizer Control Board
ECON -- Economizer
FlOP -- Factory-Installed Option
FPT -- Freeze Protect Thermostat
FS -- Flame Sensor
FU -- Fuse
GND -- Ground
GV -- Gas Valve
HACR -- Heating, Air Conditioning,
and Refrigeration
HPS -- High-Pressure Switch
HS -- Hall Effect Sensor
I -- Ignitor
IAE -- Indoor Air Enthalpy
IAQ -- Indoor Air Quality
IDM -- Induced-Draff Motor
IFC -- Indoor-Fan Contactor
IFCB -- Indoor Fan Circuit Breaker
IFM -- Indoor-Fan Motor
IGC -- Integrated Gas Controller
LOR -- Lockout Relay
LPS -- Low-Pressure Switch
LS -- Limit Switch
LSM -- Mechanical Limit Switch
OAE -- Outdoor-Air Enthalpy
CAD -- Outdoor-Air Sensor
OFC -- Outdoor-Fan Contactor
OFM -- Outdoor-Fan Motor
OL -- Overload
PEC -- Power Exhaust Contactor
PEM -- Power Exhaust Motor
PL -- Plug
PLP -- Phase Loss Protection
QT -- Quadruple Terminal
RAS -- Return Air Sensor
RS -- RoHout Switch
SAT -- Supply-Air Temperature
TB -- Terminal Block
TO -- Thermostat-Cooling
TH -- Thermostat-Heating
TRAN -- Transformer
W/AT -- With Auxiliary Trip
CAI CLO.AI
ONLY
CCHR
_-BLR ,vv_ CCHAI
IFC
BLK
YEL IFM
(05 ALT,
BLU 06,0T STD)
CAP2
IPW
STD,ALT+
OF_4
NOTES:
l If ANY Of THE ORIGINAL WIRE FURNISHED
NUST BE REPLACED IT _bST NE REPLACED
WITH TYPE NO C OR ITS EOU]VALDNY
D THREE PHASE MOTORS ARE PROTECTED U_UER
PRIMARY SINGLE PHASING CONDITIONS
3. USE COPPER CONDUCTORS ONLY¸
4 RED JUMPER WIRE MUST BE ADDED BETWEEN
R AND Wl FOR SPACE YENPDRATURE MODE
AND TEMPORARILY DURINO SERVIC£-TDST
NODE WHEN THE HEATERS NEED TO OPERAfE
S TRANI AND D ARE WIRED FOR DSOV ON ?081DSOV
U_ITS IF UNIT IS TO DE RUN WITH DDBV POWER
SUPPLY, DISCONNECT NLK WIRE FRO_ DSOV
TERMINAL A_D CONNECT TO DDOV TERMINAL
Fq
ICON+ERIE°C • OUTLET •
.....
PECI ......
YEL -eL----}__ _K_D_B RN-(;-,-,,-*-b_ }_GRN/m :
II +>--+LN+ 'XPENq:
TRAN 6 _____
: _1__ +H;I"I"+!
_04-M06
PAC ONLY
GAS SECTION ONLY
(48 SERIES)
ELECTRIC HEAT ONLY
(50 SERIESI
TH ERMOSTAT/IGC MARKINGS
@ Terminal (Marked)
BM -- Blower Motor
(_ Terminal (Unmarked) C -- Common
CM -- Combustion Motor
CS -- Centrifugal Switch
Terminal Block G -- Fan
-- Factory Wiring IFO -- Indoor Fan On
L1 -- Line I
------ FieldControlWiring R -- Thermostat Power
.... FieldPower Wiring RT -- Power Supply
SS -- Speed Sensor
.... Accessory or Optional Wiring W -- Thermostat Heat
Wl -- I st Stage of Heating
To Indicate Common Potential W2 -- 2rid Stage of Heating
X -- Alarm Output
Y1 -- 1st Stage of Cooling
Y2 -- 2rid Stage of Cooling
Fig. 39 -- Typical Power Schematic
45
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