Bard Economizers With Exhaust EIFM-3B - Manual (Page 12)

Manual 2100-390
Page 10
FIGURE 8
ECONOMIZER OPERATION
FOR SINGLE COMPRESSOR UNIT
MIS-1351
WALL THERMOSTATS
FOR HEAT PUMPS WITH ECONOMIZER
Thermostat Part 8403-027 (White Rodgers IF92-71)
Electronic Heat Pump Thermostat
2 Stage Cool / 3 Stage Heat
FOR AIR CONDITIONING WITH ECONOMIZER
Thermostat Part No. 8403-021 (Honeywell T874D1934)
Subbase part no. 8404-012
(Honeywell Q674A1001)
2 Stage Cool / 2 Stage Heat