
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Operations and Installation Guide – DOC. 8163E Thermostats: CHV-TSTAT and CHV-THSTAT
31
Heat Pump, 1 or 2 Stages, Aux Heat or Dual Fuel
Press and hold the MODE and VIEW buttons simultaneously for 5 seconds to enter the setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
# of Stages:
HP/AUX or DF:
HPump
2
HP/Aux
HEATPUMP SYSTEM
Heat Sys Type: HPump
# of Stages: Select 1 or 2 stages.
HP/AUX or DF: Dual fuel runs either the heat pump or the
aux output, depending on outdoor temperature. The heat
pump with aux can stage the heat when required to improve
performance.
• Dual Fuel: A dual fuel system combines an energy
efficient air source heat pump with a new or existing oil,
gas or propane furnace. The furnace runs in place of the
heat pump in cold weather.
• Aux (Auxiliary) Heat: When the a heat pump can no
longer efficiently transfer heat from the outside air, the
thermostat automatically turns on a secondary heat
source, such as electric resistive heat.
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
Heat Anticipator:
Cool Anticipator:
Intrstg Differential:
5
2
2.0
0
ADJUSTS HEAT SHUTOFF DYNAMICS
SETUP: SYSTEM PERF
LOCKS OUT HP IN COLD WEATHER
HP Balance Pt:
AUX Balance Pt:
Staging Accum Thresh:4
0
0
90
0
Heat Anticipator and Cool Anticipator: Select 1 – 6.
Low number = more frequent cycles, faster response.
High number = less frequent cycles, slower response.
Intrstg Differential: Select 0.5º – 8.0º F.
The proportional temperature error to trigger the second
stage.
HP Balance Pt: Select 0º – 90º F or N/A. Minimum outdoor
temperature at which the heat pump runs (requires an
outdoor temperature source).
AUX Balance Pt: Select 0º – 90º F or N/A. Maximum
outdoor temperature at which Aux heat system supplements
the heat pump (requires an outdoor temperature sensor).
Staging Accum Thresh: Select 1 – 6.
The feature optimizes triggering of the second stage to meet
demand in instances where the first stage cannot reach the
interstage differential or achieve the desired setpoint.
Low number = more aggressive trigger for second stage.
High number = less aggressive trigger for second stage
(6 disables this feature altogether).
NOTE: A setting of 3 is recommended for most
installations.
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