Siemens 125-1957 NGT Dband, Morn Dband, Switch Dband, AUX DSH Stpt, CTL Stpt, Disch Stpt, MA Stpt

APOGEE Heat Pump Controller—Multi Stage Owner's Manual

Descriptor	Address	Application	Description
NGT DBAND	88	2281, 2283,	During night mode, this point indicates the number of degrees
		2284, 2286,	above or below (depending on heating/cooling mode) the night
		2287	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,	The number of degrees of variance from the heating or cooling
		2284, 2286,	setpoint at which the controller will terminate morning warm-up or
		2287	cool-down and begin normal operation.
			Valid input: 0 to 255'F
SWITCH DBAND	90	2281, 2283,	The temperature range in degrees that is compared to the
		2284, 2286,	difference between CTL TEMP (Point 78) and CTL STPT (Point
		2287	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,	The actual setpoint value being used as input for the active
		2284, 2286,	temperature control loop.
		2287
DISCH STPT	93	2281, 2284,	The setpoint of the discharge air control loop.
		2287
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,	The time, in seconds, between control loop calculations.
		2284, 2286,
		2287
ERROR STATUS	99	2281, 2283,	The status code indicating any errors detected during controller
		2284, 2286,	power up. A status of 0 indicates there are no problems.
		2287, 2299

30 Siemens Building Technologies, Inc.