
527929-BIM-F-0911
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Johnson Controls Unitary Products
Table 15: Thermostat Signals (Three Phase Units)
Signal
State
Board Function
G
ON
BLOWER INSTANT ON AT 75% RATED AIRFLOW
OFF
BLOWER INSTANT OFF
G, Y1 & O
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
REVERSING VALVE ENERGIZED
SYSTEM OPERATES IN COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING
G & Y1
ON
FAN INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN HEATING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING
G & W
ON
BLOWER INSTANT ON
HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON
HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON
OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 1/2 SEC. DELAY OFF
BLOWER 60 SEC. DELAY OFF
G, Y1 & W
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON
SYSTEM OPERATES IN HEATING
HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON
HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 1/2 SEC. DELAY OFF
BLOWER 60 SEC. DELAY OFF
W
ON
BLOWER INSTANT ON
HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON
HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON
OFF
HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF
HEATER BANK 1, 2 & 3 ELEC. HEAT 1/2 SEC. DELAY OFF
BLOWER 60 SEC. DELAY OFF