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4. In this application, the maximum configurations are as follows:
•
The maximum of CMP TOTL = 3.
•
The maximum of EHTG STG CNT = 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.
COMPRESSOR 1
REVERSING
VALVE
COIL
WATER
SOURCE
* THE O.A. AND R.A. DAMPERS MUST
BE MECHANICALLY LINKED.
Siemens Building Technologies, Inc.
COMPRESSOR 2
COMPRESSOR 3
REVERSING
VALVE
COIL
COMPRESSOR 2; OR 3RD STAGE ELECTRIC HEAT (OPTIONAL)
COMPRESSOR 3; OR 2ND STAGE ELECTRIC HEAT (OPTIONAL)
SPARE AI (0-10V or 4-20mA) OR SPARE DI (DRY CONTACT)
SPARE AI (10K
THERMISTOR) OR SPARE DI (DRY CONTACT)
MIXED AIR TEMPERATURE SENSOR 10K
N.O.
WALL
SWITCH
(OPTIONAL)
*
ON BOARD, AO1 IS GROUPED PYSICALLY WITH AO2 AND AO3
Figure 5. Application 2583 Control Drawing.
SUPPLY AIR
ELECTRIC
HEAT
(OPTIONAL)
HEATING /
REVERSING
COOLING
VALVE
COIL
COIL
COIL
FAN
COIL
1ST STAGE ELECTRIC HEAT (OPTIONAL)
REVERSING VALVE
COMPRESSOR 1
THERMISTOR (OPTIONAL)
HEAT PUMP ALARM (OPTIONAL)
Applications
O.A.
N.C.
O.A.
DAMPER*
(OPTIONAL)
N.O.
R.A.
MIXED AIR
TEMPERATURE
R.A.
SENSOR
DAMPER*
(OPTIONAL)
(OPTIONAL)
24 V-AC
FLN TRUNK
AO1 (0-10V)
*
DO1
DO2
DO3
DO4
DO5
DO6
DO7
FAN
DO8
DI3/AI3
DI4/AI4
DI5/AI5
DI2
DI6
AO2 (0-10V)
AO3 (0-10V)
RTS
RTS
HEAT PUMP
CONTROLLER -
MULTI-STAGE
13
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