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Carrier 38BRW Installation And Start-Up Instructions Manual page 7

Split-system air conditioner

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NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
R
24 VAC HOT
W
HEAT STAGE 1
Y
COOL STAGE 1
G
INDOOR FAN
NOTES:
1. CORPORATE THERMOSTAT WIRING DIAGRAMS ARE ONLY ACCURATE FOR MODEL
NUMBERS BEGINNING WITH TSTAT _ _ _ _ _ _ _
2. WIRING MUST CONFORM TO NEC OR LOCAL CODE.
3. SOME UNITS ARE EQUIPPED WITH PRESSURE SWITCH(ES), TEMPERATURE SWITCH,
OR 5 MINUTE COMPRESSOR CYCLE PROTECTION. CONNECT 24 VOLT FIELD WIRING
TO FACTORY PROVIDED STRIPPED LEADS.
4. A LIQUID LINE SOLENOID VALVE IS REQUIRED ON SOME UNITS. SEE SPECIFIC UNIT
INSTRUCTIONS.
5. THERMOSTATS ARE FACTORY CONFIGURED WITH 5 MINUTE COMPRESSOR CYCLE
PROTECTION AND 4 CYCLES PER HOUR LIMIT. SEE THERMOSTAT INSTRUCTIONS
FOR DETAILS.
6. TO STAGE THE ELECTRIC RESISTANCE HEAT, CONSULT OUTDOOR THERMOSTAT
INSTALLATION INSTRUCTIONS.
Fig. 5—Typical 24-v Circuit Connections (Continued)
FA, FB, FC,
FD, FF
AIR
CONDITIONER
FAN COIL
R
C
SEE
C
NOTE 2
W2
G
A95282
LEGEND
24 VOLT FACTORY WIRING
24 VOLT FIELD WIRING
FIELD SPLICE CONNECTION
C
CONTACTOR
NON-CORPORATE
NON-PROGRAMMABLE
THERMOSTAT
MODEL AC
R
24 VAC HOT
HEAT STAGE 1
W
COOL STAGE 1
Y
INDOOR FAN
G
7
SINGLE
AIR
STAGE
CONDITIONER
FURNACE
R
C
SEE
W/W1
C
NOTE 2
Y/Y2
G
A95283
A94394

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