Crestron CHV-TSTATEX Guía de instalación descargar pdf (Pagina 31)

Crestron CHV-TSTAT and CHV-THSTAT Thermostats

Thermostat Symbol Definitions

The following tables contain a detailed description of the inputs and outputs for the

basic and advanced CHV-TSTAT and CHV-THSTAT symbols.

System Mode Related Digital Joins

Signal Name Symbol* I/O Definition

SYS_MODE_OFF Both Input Selects off mode (no HVAC system operation)

SYS_MODE_HEAT Both Input Selects heat only mode when asserted

SYS_MODE_COOL Both Input Selects cool only mode when asserted

SYS_MODE_AUTO Both Input Selects auto mode when asserted

SYS_MODE_EHEAT Both Input

Selects emergency heat only mode on heat pump systems

Has no effect if sent to a heat/cool (H/C) system

SYS_MODE_OFF_F

SYS_MODE_HEAT_F

SYS_MODE_COOL_F

SYS_MODE_AUTO_F

SYS_MODE_EHEAT_F

Both Output 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

*Joins are either available in both basic and advanced symbols or in the advanced

symbol only.

Fan Mode Related Digital Joins

Signal Name Symbol I/O Definition

FAN_MODE_AUTO Both Input Selects auto fan mode when asserted

FAN_MODE_ON Both Input Selects fan ON mode, fan runs continuously

FAN_MODE_AUTO_F Both Output Feedback for the auto fan mode join above

FAN_MODE_ON_F Both Output Feedback for the on fan mode join above

System Operation Feedback Digital Joins

Signal Name Symbol I/O Definition

HEAT1_F Both Output Asserted for the duration that heat stage 1 is running

HEAT2_F Both Output Asserted for the duration that heat stage 2 is running

AUX_HEAT_F Both Output

Asserted for the duration that auxiliary heat is running (Heat

pump only)

COOL1_F Both Output Asserted for the duration that cooling stage 1 is running

COOL2_F Both Output Asserted for the duration that cooling stage 2 is running

FAN_F Both Output Asserted for the duration that the fan is on for any reason

HUMIDIFIER_F Both Output Asserted for the duration that the humidifier is running

HOLD_F Both Output

Indicates that the thermostat has been set “offline” by the user

active = offline, inactive=online

Operations and Installation Guide - DOC. 8163 Thermostats: CHV-TSTAT and CHV-THSTAT • 27

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