Data Sheet for Product

Page 2 of 6 Siemens Building Technologies, Inc.
Document No. 127-0019
Table 1. Water Source Heat Pump.
Point Type Description Range/Units
23 LAO Unoccupied Cooling Temperature Set Point. Water Source Heat
Pump attempts to maintain room temperature by discharging a
constant temperature of air. For cooling, typical discharge
temperature is room temperature minus 20°F. Unit begins cooling
based on room temperature. If unit is in unoccupied time period, Set
Point attempts to maintain room temperature between unoccupied
Set Points. If room Set Point Adjustment is active, Set Points are
adjusted based on value of Set Point Adjustment (Point 07).
0 to 255°F
24 LAO Occupied Cooling Temperature Set Point. Water Source Heat Pump
attempts to maintain room temperature by discharging a constant
temperature of air. Typical discharge temperature is room
temperature minus 20°F. Unit begins cooling based on room
temperature. If unit is in occupied time period, Set Point attempts to
maintain room temperature between occupied Set Points. If room
Set Point Adjustment is active, Set Points are adjusted based on
value of Set Point Adjustment (Point 07).
0 to 255°F
25 LAO Unoccupied Heating Temperature Set Point. Water Source Heat
Pump attempts to maintain room temperature by discharging a
constant temperature of air. Typical discharge temperature is room
temperature plus 30°F. Unit begins heating based on room
temperature. During an unoccupied time period, Set Point attempts
to maintain room temperature between unoccupied room Set Points.
If room Set Point Adjustment is active, Set Points are adjusted based
on value of Set Point Adjustment (Point 07).
0 to 255°F
26 LAO Occupied Heating Temperature Set Point. Water Source Heat Pump
attempts to maintain room temperature by discharging a constant
temperature of air. Typical discharge temperature is room
temperature plus 30°F. Unit begins heating based on room
temperature. If unit is in occupied time period, Set Point attempts to
maintain room temperature between occupied Set Points. If room
Set Point Adjustment is active, Set Points are adjusted based on
value of Set Point Adjustment (Point 07).
0 to 255°F
27 LAO Room Temperature Low Warning Set Point. If room temperature is
too cold, Water Source Heat Pump sends warning to Open
Processor through this point. Set Points control temperatures which
activate this alarm.
0 to 255°F
28 LAO Room Temperature High Warning Set Point. If room temperature is
too hot, Water Source Heat Pump sends warning to Open Processor
through this point. Set Points control temperatures which activate
this alarm.
0 to 255°F
29 LDI Fan Status Off/On
30 LDI Compressor Status Off/On
31 LDO Clear Fault. To clear an active fault in unit, set this point to on. After
clearing alarm, program sets point back to off.
Off/On
32 LAO Auto/Manual Mode See Table 4
33 LAO System Command See Table 5
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