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> Carrier HH93AZ2186/Q674L1074 t-stat sub-base 28042
Carrier HH93AZ2186/Q674L1074 t-stat sub-base 28042
THE HH07AT AND HH07AQ THERMOSTATS ARE USED WITH THE HH93AZ SUBBASES TO CONTROL 24 TO 30 VAC HEAT PUMP SYSTEMS WITH ONE OR TWO STAGES OF HEATING AND COOLING,DEPENDING ON MODEL,SUBBASES PROVIDE SYSTEM AND FAN SWITCHING,AND WIRING TERMINALS,STAGES:2-HEAT,1-COOL,SWITCHING SYSTEM:SUPL.HT-HEAT-OFF-COOL,FAN-AUTO-ON,
