Bryant 541A - Manual (Page 11)

Table 8 — Recommended Thermostat
THERMOSTAT NO. HH621606 (°F)
SUBBASE NO. HH93AZ174*
Type Standard
Display — °F
2 Cooling Stages
X
2 Heating Stages X
Auto Changeover X
Fan Switch X*
Emergency Heat X
*Subbase has ON-AUTO fan switch. Use emergency heat relay part no. HN65DZ026.
LEGEND
EQUIP — Equipment
GND
— Ground
HC — Heater Contactor
IFC — Indoor Fan Contactor
IFM — Indoor Fan Motor
NEC — National Electrical Code
TB — Terminal Block
Fig. 10 — Field Wiring Diagram, 541A120 or 180 System with
Standard Thermostat and Electric Heat
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