Siemens 125-1957 User Manual
Page 40
APOGEE Heat Pump Controller—Multi Stage Owner's Manual
30
Siemens Building Technologies, Inc.
Descriptor Address
Application
Description
NGT DBAND
88
2281, 2283,
2284, 2286,
2287
During night mode, this point indicates the number of degrees
above or below (depending on heating/cooling mode) the night
setpoint that the room temperature can raise or drop before the
fan will be turn ON.
Valid input: 0 to 255°F
MORN DBAND
89
2281, 2283,
2284, 2286,
2287
The number of degrees of variance from the heating or cooling
setpoint at which the controller will terminate morning warm-up or
cool-down and begin normal operation.
Valid input: 0 to 255'F
SWITCH DBAND
90
2281, 2283,
2284, 2286,
2287
The temperature range in degrees that is compared to the
difference between CTL TEMP (Point 78) and CTL STPT (Point
92). The difference exceeding this value is one of the conditions
necessary to change modes between heating and cooling.
Valid input: 0 to 255°F
AUX DSH STPT
91
2281, 2284
The setpoint of the auxiliary radiation control loop.
CTL STPT
92
2281, 2283,
2284, 2286,
2287
The actual setpoint value being used as input for the active
temperature control loop.
DISCH STPT
93
2281, 2284,
2287
The setpoint of the discharge air control loop.
MA STPT
93
2283, 2286
The setpoint of the mixed air control loop.
DSH MIN TEMP
94
2281, 2284
The minimum value to which DISCH STPT (Point 93) can be set
by the room control loop.
DSH MAX TEMP
95
2281, 2284
The maximum value to which DISCH STPT (Point 93) can be set
by the room control loop.
LOOP TIME
98
2281, 2283,
2284, 2286,
2287
The time, in seconds, between control loop calculations.
ERROR STATUS
99
2281, 2283,
2284, 2286,
2287, 2299
The status code indicating any errors detected during controller
power up. A status of 0 indicates there are no problems.