2
COMPONENT SELECTION GUIDE
GAS/ELECTRIC
HEAT PUMP*
DT4U
4 Zone, Universal Controller for
Gas/Electric - 2-Stage Heat/Cool
or
Heat Pump 3- Stage Heat/2-Stage Cool
Includes Leaving Air Sensor (LAT)
OUTSIDE AIR SENSOR
For Fossil Fuel Applications
(FOAS)
HEAT PUMP THERMOSTATS
GAS/ELECTRIC THERMOSTATS
DIGITAL
Field Supplied
PROGRAMMABLE
Field Supplied
DIGITAL
Field Supplied
PROGRAMMABLE
Field Supplied
ZONE DAMPERS
5 TONS AND UNDER
OVER 5 TONS
Low Pressure Dampers
Round - (TR size) up to .5” SP
Rect. Single Blade - (TREC W x H) up to .5” SP
Rect. Opposed Blade - (TREC W x H) up to .5” SP
Medium Pressure Dampers
Round - (**STMPD size) up to 1.75” SP
Rectangular - (**STMRTD W x H) up to 1” SP
Heavy Duty Rectangular - (**STCD 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 DAMPERS
ELECTRONIC MODULATING BYPASS DAMPERS
(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 to Power 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: When using Medium Pressure Dampers you will need a field supplied 24v SPDT relay. ( See page 5 for wiring diagram)
