Operating Instructions
Table Of Contents
- Manual Organization
- Manual Conventions
- Manual Symbols
- Datamate Software
- Getting Help
- Where To Send Comments
- Introduction
- Basic Operation
- Application 2273: Multiple Compressor Heat Pump with Reversing Valve Control and Mixed Air Control
- Application 2274: Multiple Heating and Cooling Heat Pump with Mixed Air and Internal Reversing Valve Control
- Application 2290: Heat Pump ControlIer Multi Stage Slave Mode
- Overview
- Overview
APOGEE Heat Pump Controller—Multi-Stage Owner's Manual
1. In this application, the maximum configurations are as follows:
•
•
•
The maximum of CMP TOTL (Point 75) = 3.
The maximum of EHTG STG CNT (Point 76) = 3.
The maximum of CMP TOTL plus EHTG STG CNT = 4.
If these limits are exceeded, CMP TOTL will be set to 0 and EHTG STG CNT will be set
to 0. These points will remain at 0 until they are set correctly. This prevents the
application from trying to use the same DO as both a compressor and a stage of electric
heat.
24 V-AC
AOV1 (O-10V)
DO1
DO2
DO3
DO4
DO5
DO6
DO7
DO8
DI4
DI3/AI3
DI2
FLN TRUNK
RTS
N.O.
HEAT PUMP
CONTROLLER -
MULTI-STAGE
RTS
TEC2273CDR2
FAN
WALL
SWITCH
(OPTIONAL)
ELECTRIC
HEAT
(OPTIONAL)
COIL
HEATING /
COOLING
COIL
WATER
SOURCE
COMPRESSOR 3
REVERSING
VALVE
SUPPLY AIR
O.A.
N.C.
R.A.
1ST STAGE ELECTRIC HEAT (OPTIONAL)
REVERSING VALVE
COMPRESSOR 1
COMPRESSOR 2; OR 3RD STAGE ELECTRIC HEAT (OPTIONAL)
COMPRESSOR 3; OR 2ND STAGE ELECTRIC HEAT (OPTIONAL)
FAN
HEAT PUMP ALARM (OPTIONAL)
MIXED AIR TEMPERATURE SENSOR (OPTIONAL)
N.O.
* THE O.A. AND R.A. DAMPERS MUST
BE MECHANICALLY LINKED.
R.A.
DAMPER*
(OPTIONAL)
MIXED AIR
TEMPERATURE
SENSOR
(OPTIONAL)
COMPRESSOR 1
REVERSING
VALVE
COIL
COMPRESSOR 2
REVERSING
VALVE
COIL
COIL
COIL
O.A.
DAMPER*
(OPTIONAL)
Figure 2-1. Application 2273 Control Drawing.
12 Siemens Building Technologies, Inc.