COMPONENT SELECTION GUIDE
GAS/ELECTRIC
HEAT PUMP*
GEN II -R
Universal Controller for
Gas/Electric - 2-Stage Heat/Cool
or
Heat Pump 3- Stage Heat/2-Stage Cool
Includes Leaving Air Sensor (LAT)
HEAT PUMP THERMOSTATS
GAS/ELECTRIC THERMOSTATS
ZONE DAMPERS
5 TONS AND UNDER
OVER 5 TONS
Low Pressure Dampers (12
VA
)
Round - (TRX size) up to .5” SP
Rect. Single Blade - (TREX W x H) up to .5” SP
Rect. Opposed Blade - (TREX W x H) up to .5” SP
Medium Pressure Dampers (2
VA
)
Round - (**STMRX size) up to 1.75” SP
Heavy Duty Rectangular - (**STCRX W x H) up to 1.75” SP
BYPASS DAMPERS
DAMPER TRANSFORMER***
5 TONS AND UNDER
OVER 5 TONS
BAROMETRIC BYPASS
Round - (101ABBD diam)
Rectangular ( RBB W x H)
BYPASS DAMPER
ELECTRONIC MODULATING BYPASS DAMPER
(Includes Integrated Static Pressure Control)
Round - (
STBP
size) up to 1.75” SP
Rectangular (
STCDBP
size) up to 1.75” SP
1-24 40VA Transformer Powers Bypass
COMPLETE SYSTEM
*Note: For Heat Pump systems using Gas/Electric inputs ( no “O” or “B” reversing value circuits) use the Gas/Electric set up.
** Note: For Heat Pump operation with emergency heat, install one Heat Pump thermostat with emergency heat operation on any zone.
*** Note: Damper transformer needs to be sized based on the VA of the style and quantity of the dampers. See page 19 for transformer sizing.
PROGRAMMABLE
Field Supplied
PROGRAMMABLE
Field Supplied
2
**
