Reznor RCB User Manual

Form CP-MAPSIII-D21, Doc No 303070, Page 12
3.0 Controls
(Cont’d)
3.7 Space
Temperature
Control and
Setpoint
Denitions
Denitions
Heating
SpcTempSP: Base Space Temp Setpoint 72°F(22°C) minus the SpcHtgDB: Space
Heating Dead Band 1°F(.4°C) = SpcHtgSP: Space Heating Setpoint 71°F(21°C)
When in the occupied mode, the SpcHtgSP: Space Heating Setpoint is the
SpcEffHtgSp: Space Effective Heating Setpoint.
SpcEffHtgSp: Space Effective Heating Setpoint 71°F(21°C) minus the
SpcHtgOnDiff: Space Heating on Differential 4°F(2.1°C) = 67°F(19°C)
Space Temp less than or equal to 67°F(19°C) = Space Heating Mode ON.
SpcEffHtgSp: Space Effective Heating Setpoint 71°F (21°C) plus the
SpcHtgOffDiff: Space Heating off Differential 1°F(.4°C) = 72°F(22°C)
Space Temp greater than or equal to 72°F(22°C) = Space Heating Mode OFF.
Cooling
SpcTempSP: Base Space Temp Setpoint 72°F(22°C) plus the SpcClgDB: Space
Cooling Dead Band 1°F(.4°C) = SpcClgSP: Space Cooling Setpoint 73°F(23°C)
When in the occupied mode, the SpcClgSP: Space Cooling Setpoint is the
SpcEffClgSp: Space Effective Cooling Setpoint.
SpcEffClgSp: Space Effective Cooling Setpoint 73°F(23°C) plus the SpcClgOnDiff:
Space Cooling on Differential 4°F(2.1°C) = 77°F(25°C)
Space Temp greater than or equal to 77°F(25°C) = Space Cooling Mode ON.
SpcEffHtgSp: Space Effective Cooling Setpoint 73°F(23°C) minus the
SpcClgOffDiff: Space Cooling off Differential 1°F(.4°C) = 72°F(22°C)
Space Temp less than or equal to 72°F - Space Cooling Mode OFF.
3.7.2 Unoccupied Space Temperature Control and Setpoint
Denitions
Heating
SpcTempSP: Base Space Temp Setpoint 72°F(22°C) minus the SpcHtgDB: Space
Heating Dead Band 1°F(.4°C) = SpcHtgSP: Space Heating Setpoint 71°F(21°C)
SpcHtgSP: Space Heating Setpoint 71°F(21°C) minus the SpcHtgUnoOs: Space
Heating Unoccupied Offset 5°F(2.8°C) = SpcEffHtgSp: Space Effective Heating
Setpoint 66°F(18°C)
SpcEffHtgSp: Space Effective Heating Setpoint 66°F(18°C) minus the
SpcHtgOnDiff: Space Heating on Differential 4°F(2.1°C) = 62°F(16°C)
Space Temp less than or equal to 62°F(16°C) = Unit ON for unoccupied heating.
SpcEffHtgSp: Space Effective Heating Setpoint 66°F(18°C) plus the SpcHtgOffDiff:
Space Heating off Differential 1°F(.4°C) = 67°F(19°C)
Space Temp greater than or equal to 67°F(19°C) = Unit OFF.
Intermittent Unoccupied Heating operation will only be permitted in the unit heat
state.
Cooling
SpcTempSP: Base Space Temp Setpoint 72°F(22°C) plus the SpcClgDB: Space
Cooling Dead Band 1°F(.4°C) = SpcClgSP: Space Cooling Setpoint 73°F(23°C)
SpcClgSP: Space Cooling Setpoint 73°F(23°C) plus the SpcClgUnoOs: Space
Cooling Unoccupied Offset 5°F(2.8°C) = SpcEffClgSp: Space Effective Cooling
Setpoint 78°F(26°C)
SpcEffClgSp: Space Effective Cooling Setpoint 78°F(26°C) plus the SpcClgOnDiff:
Space Cooling on Differential 4°F(2.1°C) = 82°F(28°C)
Space Temp greater than or equal to 82°F(28°C) = Unit ON for unoccupied
cooling.
SpcEffClgSp: Space Effective Cooling Setpoint 78°F(26°C) minus the

Reznor RCB Specifications

General

Brand	Reznor
Model	RCB
Category	Air Handlers
Language	English