288591-BIM-C-0408
Johnson Controls Unitary Products
19
Table 20: Thermostat Signals (Single Phase Units)
Signal
State
Board Function
G
ON
BLOWER INSTANT ON AT 75% RATED AIRFLOW
OFF
BLOWER INSTANT OFF
G & Y1
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN FIRST STAGE COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING
G, Y1 & Y2
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN SECOND STAGE COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING
G & W
ON
BLOWER INSTANT ON
HEATER BANK 1 ELEC. HEAT INSTANT ON
HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON
HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON
OFF
HEATER BANK 3 ELEC. HEAT INSTANT OFF
HEATER BANK 2 ELEC. HEAT 1/2 SEC. DELAY OFF
HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF
BLOWER 60 SEC. DELAY OFF
W
ON
BLOWER INSTANT ON
HEATER BANK 1 ELEC. HEAT INSTANT ON
HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON
HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON
OFF
HEATER BANK 3 ELEC. HEAT INSTANT OFF
HEATER BANK 2 ELEC. HEAT 1/2 SEC. DELAY OFF
HEATER BANK 1 ELEC. HEAT 1 SEC. DELAY OFF
BLOWER 60 SEC. DELAY OFF
Table 21: Thermostat Signals (Three Phase Units)
Signal
State
Board Function
G
ON
BLOWER INSTANT ON AT 75% RATED AIRFLOW
OFF
BLOWER INSTANT OFF
G & Y1
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN FIRST STAGE COOLING
OFF
COMPRESSOR AND OUTDOOR FAN INSTANT OFF
BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING
G, Y1 & Y2
ON
BLOWER INSTANT ON
COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)
SYSTEM OPERATES IN SECOND STAGE COOLING
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
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