288429-YIM-A-0307

Table 20: Thermostat Signals (Single Phase Units)

Signal

State

Board Function

G

ON

BLOWER INSTANT ON AT 75% RATED AIRFLOW

OFF

BLOWER INSTANT OFF

 

 

 

BLOWER INSTANT ON

 

ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

G & Y1

 

SYSTEM OPERATES IN FIRST STAGE COOLING

 

OFF

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

 

BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING

 

 

 

 

BLOWER INSTANT ON

 

ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

G, Y1 & Y2

 

SYSTEM OPERATES IN SECOND STAGE COOLING

 

OFF

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

 

BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING

 

 

 

 

BLOWER INSTANT ON

 

ON

HEATER BANK 1 ELEC. HEAT INSTANT ON

 

HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON

 

 

G & W

 

HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON

 

HEATER BANK 3 ELEC. HEAT INSTANT OFF

 

 

 

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

 

 

BLOWER INSTANT ON

 

ON

HEATER BANK 1 ELEC. HEAT INSTANT ON

 

HEATER BANK 2 ELEC. HEAT 10 SEC. DELAY ON

 

 

W

 

HEATER BANK 3 ELEC. HEAT 20 SEC. DELAY ON

 

HEATER BANK 3 ELEC. HEAT INSTANT OFF

 

 

 

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

 

 

 

BLOWER INSTANT ON

 

ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

G & Y1

 

SYSTEM OPERATES IN FIRST STAGE COOLING

 

OFF

COMPRESSOR AND OUTDOOR FAN INSTANT OFF

 

BLOWER OFF DELAY DETERMINED BY “DELAY” JUMPER SETTING

 

 

 

 

BLOWER INSTANT ON

G, Y1 & Y2

ON

COMPRESSOR AND OUTDOOR FAN INSTANT ON (AFTER ANTI-SHORT CYCLE DELAY)

 

 

SYSTEM OPERATES IN SECOND STAGE COOLING

 

 

BLOWER INSTANT ON

 

ON

HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON

G & W

 

HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON

 

HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF

 

 

 

OFF

HEATER BANK 1, 2 & 3 ELEC. HEAT 1/2 SEC. DELAY OFF

 

 

BLOWER 60 SEC. DELAY OFF

 

 

BLOWER INSTANT ON

 

ON

HEATER BANK 1, 2 & 3 ELEC. HEAT INSTANT ON

W

 

HEATER BANK 4, 5 & 6 ELEC. HEAT 10 SEC. DELAY ON

 

HEATER BANK 4, 5 & 6 ELEC. HEAT INSTANT OFF

 

 

 

OFF

HEATER BANK 1, 2 & 3 ELEC. HEAT 1/2 SEC. DELAY OFF

 

 

BLOWER 60 SEC. DELAY OFF

Unitary Products Group

19

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York R-410A dimensions Thermostat Signals Single Phase Units, Thermostat Signals Three Phase Units, Board Function

R-410A specifications

York R-410A is a widely recognized and highly efficient refrigerant used in modern air conditioning systems. Developed as an environmentally friendly alternative to R-22, R-410A has gained popularity in the HVAC industry due to its numerous advantageous features and characteristics.

One of the main features of York R-410A is its ability to provide superior cooling performance. This refrigerant operates efficiently at both high and low temperatures, allowing systems using it to maintain optimal indoor climates even during extreme weather conditions. Its high energy efficiency ratio (EER) and seasonal energy efficiency ratio (SEER) ratings make it a preferred choice for energy-conscious consumers, resulting in lower energy bills and a reduced carbon footprint.

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