
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Operations and Installation Guide – DOC. 8163E Thermostats: CHV-TSTAT and CHV-THSTAT
51
Slab 4B – 2-Stage Heat/1-Stage Cool with Slab Maximum (Heat
Pump)
Press and hold the MODE and VIEW buttons simultaneously for 5 seconds to enter setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab MAX T:
HP/AUX or DF:
SLAB 4B
122
o
HP/Aux
2 STG SPACE HEAT - 1 STG
COOL WITH SLAB MAX (HP)
SLAB = W1, HT/CL = Y1/O/G
Heat Sys Type: SLAB 4B
Slab MAX T: Select 39° – 122° F (39° – 50° C). Used to
prevent the floor from becoming too hot on long heat calls.
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 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.
NOTE: Slab mode 4B requires an air temperature source
and a slab remote sensor (CHV-RSS).
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
Heat Anticipator:
Cool Anticipator:
Intrstg Differential:
HP Balance Pt:
AUX Balance Pt:
5
6
0.5
0
Off
1
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 sensor).
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).
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