Crestron CHV-TSTAT Operation And Installation Manual page 31

Crestron CHV-TSTAT and CHV-THSTAT
Thermostat Symbol Definitions
System Mode Related Digital Joins
Signal Name
SYS_MODE_OFF
SYS_MODE_HEAT
SYS_MODE_COOL
SYS_MODE_AUTO
SYS_MODE_EHEAT
SYS_MODE_OFF_F
SYS_MODE_HEAT_F
SYS_MODE_COOL_F
SYS_MODE_AUTO_F
SYS_MODE_EHEAT_F
Fan Mode Related Digital Joins
Signal Name
FAN_MODE_AUTO
FAN_MODE_ON
FAN_MODE_AUTO_F
FAN_MODE_ON_F
System Operation Feedback Digital Joins
Signal Name
HEAT1_F
HEAT2_F
AUX_HEAT_F
COOL1_F
COOL2_F
FAN_F
HUMIDIFIER_F
HOLD_F
Operations and Installation Guide - DOC. 8163
The following tables contain a detailed description of the inputs and outputs for the
basic and advanced CHV-TSTAT and CHV-THSTAT symbols.
Symbol* I/O
Both Input
Both Input
Both Input
Both Input
Both Input
Both Output
*Joins are either available in both basic and advanced symbols or in the advanced
symbol only.
Symbol I/O
Both Input
Both Input
Both Output
Both Output
Symbol I/O
Both Output
Both Output
Both Output
Both Output
Both Output
Both Output
Both Output
Both Output
Definition
Selects off mode (no HVAC system operation)
Selects heat only mode when asserted
Selects cool only mode when asserted
Selects auto mode when asserted
Selects emergency heat only mode on heat pump systems
Has no effect if sent to a heat/cool (H/C) system
Outputs for the joins above
Can be used as feedback to show actual system mode status
since the mode can be changed from the thermostat end or
through Cresnet
Definition
Selects auto fan mode when asserted
Selects fan ON mode, fan runs continuously
Feedback for the auto fan mode join above
Feedback for the on fan mode join above
Definition
Asserted for the duration that heat stage 1 is running
Asserted for the duration that heat stage 2 is running
Asserted for the duration that auxiliary heat is running (Heat
pump only)
Asserted for the duration that cooling stage 1 is running
Asserted for the duration that cooling stage 2 is running
Asserted for the duration that the fan is on for any reason
Asserted for the duration that the humidifier is running
Indicates that the thermostat has been set "offline" by the user
active = offline, inactive=online
Thermostats: CHV-TSTAT and CHV-THSTAT • 27
Thermostats