2
SYSTEM 2000 COMPONENT SELECTION GUIDE
Auto Changeover for 2 to 20 Zones
5 TONS AND UNDER
OVER 5 TONS
BYPASS DAMPERS
ZONE DAMPERS
ZONE THERMOSTATS
❶
Some Heat Pumps utilize Gas/Electric thermostats, typically units over 7.5 tons.
For this application, use the Gas/Electric parts selection and field modify the capacity
control heat cutoff setpoint to 118° F.
❷
Use heavy duty rectangular dampers on systems of 7.5 tons or larger
COMPLETE SYSTEM
Barometric Bypass Damper
Round (101ABBD size)
Rectangular RBB W x H
Electronic Bypass Damper
Round (STMPD size)
Rectangular (STCD W x H)
Static Pressure Controller (101ASPC)
24V, 40VA Independent Transformer
for bypass (Field Supplied)
5 TONS AND UNDER
OVER 5 TONS
Low Pressure Dampers
Medium Pressure Dampers
Round (101ARZD size) up to .5” SP
Round (101AMPD size) up to 1.75” SP
Rectangular (101EC W x H) up to .5” SP
Rectangular (101MRTD W x H) up to 1” SP
❷
Heavy Duty Rectangular (101CD W x H) to 1.75” SP
12 X (Number of Dampers) = VA for the
6 X (Number of Dampers) =VA for the
24V System Transformer (Field Supplied)
24V System Transformer (Field Supplied)
Communicating
Digital
Programmable
Auxiliary Heat
(DIGICOM)
(101DIGI)
(101PROG)
for reheat/baseboard
(101DIGITS)
START
Optional
Outdoor T-Stat
(field supplied)
GAS ELECTRIC
System Controller
(101ASSB)
Capacity Controller
Single Stage(TRLAT) or (101CAPGE)
2-Stage (CAPL-2)
3- or 4-Stage (CAPL-4)
HEAT PUMP
❶
System Controller
2 Stage Heat/Cool with Auxiliary Heat
(101AACBHP)
Capacity Controller
101ALAS (Included with Controller)
COMMAND CENTER
(101CEC Communication Package,
one per 20 thermostats)
