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
Description Address Application Description
CMP1 OFF 83 2273 Value, in percent, that the active temperature control loop
output must go below for compressor 1 to turn OFF. Actual
turn off is subject to the CMP1 MlN ON (Point 88) time
being expired.
HTG CMP1 OFF 83 2274 Value, in percent, that the heating temperature control loop
output must go below for heating compressor 1 to turn OFF.
Actual turn off is subject to the HTG1 MlN ON (Point 88)
time being expired.
RVAL SWITCH 84 2273 Value, in percent, that the active temperature control loop
output must go above for the reversing valve to switch.
Actual switchover is subject to the status of HEAT.COOL
(Point 5), RVAL SW TIME (Point 89), and HTG LOOPOUT
(Point 80) or CLG LOOPOUT (Point 79).
SWITCH LIMIT 85 2273, 2274 Active temperature control loop output must be less than
this value to switch between cooling mode and heating
mode. Actual switchover depends on SWITCH DBAND
(Point 90) being exceeded and is subject to SWITCH TIME
(Point 86) being expired.
SWITCH TIME 86 2273, 2274 Time, in minutes, that must expire to switch between cooling
mode and heating mode. Actual switchover depends on the
active temperature control loop being below the value of
SWITCH LIMIT (Point 85) and exceeding the value of
SWITCH DBAND (Point 90).
CMP1 MlN OFF 87 2273 Minimum time, in minutes, that compressor 1 will remain
OFF before turning ON.
HTG1 MlN OFF 87 2274 Minimum time, in minutes, that heating compressor 1 will
remain OFF before turning ON.
CMP1 MlN ON 88 2273 Minimum time, in minutes, that compressor 1 will remain ON
before turning OFF.
HTG1 MlN ON 88 2274 Minimum time, in minutes, that heating compressor 1 will
remain ON before turning OFF.
RVAL SW TIME 89 2273 Length of time the compressor must be OFF before the
reversing valve can switch modes.
SWITCH DBAND 90 2273, 2274 Temperature range in degrees that is compared to the
difference between CTL TEMP (Point 78) and CTL STPT
(Point 92). The difference must exceed this value for
temperature control mode to change over. Changeover is
also subject to the active temperature control loop output
being below SWITCH LIMIT (Point 85) and SWITCH TIME
(Point 86) being expired.
NGT MA CTL 91 2273, 2274 YES indicates that mixed air control should occur during
night mode. NO indicates that mixed air control will not
occur during night mode.
Valid input: YES or NO.
CTL STPT 92 2273, 2274 Actual setpoint value being used as input for the active
temperature control loop.
MA STPT 93 2273, 2274 Setpoint of the mixed air control loop.
24 Siemens Building Technologies, Inc.