Crestron CHV-TSTATEX-FCU Instalační příručka stáhnout pdf (Strana 29)

Crestron CHV-TSTATEX-FCU infiNET EX Thermostat (Fan Coil Unit)

Operations & Installation Guide – DOC. 7206C infiNET EX Thermostat (Fan Coil Unit): CHV-TSTATEX-FCU

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If the or button is held down for 2 seconds, the unit enters an auto-repeat state

and the setpoint adjusts rapidly until the button is released or until the upper (or

lower) limit is reached.

Some users want to have setpoints change automatically based on the day of the

week and the time of day. For example, in the winter they may want to lower the

heat setpoint while they sleep to lower heating costs. To accommodate this, the

CHV-TSTATEX-FCU provides a “Scheduled Heat Setpoint” and a “Scheduled Cool

Setpoint” which can be specified by the control system program. This is handled

automatically by the “Crestron CHV-TSTATEX-FCU w/5-2 Scheduler” module

provided with the Crestron Database. Refer to the Crestron Studio help file or the

SIMPL Windows help file for details.

For dual setpoint operation, refer to “Auto Mode” which starts on page 23.

Hold

Hold allows the user to adjust the setpoint and maintains that setpoint until the unit is

taken out of Hold. This means that any change to the scheduled heat or cool setpoint

that occurs while in Hold is ignored until the unit is taken out of Hold.

Pressing the MODE and FAN buttons simultaneously causes the unit to enter Hold

if Hold is not yet active and the system mode is Heat, Emergency Heat or Cool.

Pressing the MODE and FAN buttons simultaneously when Hold is active causes

the unit to exit from Hold and recall either the scheduled heat setpoint or scheduled

cool setpoint as appropriate to the system mode.

If the system is in single setpoint Auto mode, exiting from Hold recalls the scheduled

auto setpoint. If the system is in dual setpoint Auto mode, upon exiting from Hold,

the auto cool setpoint becomes the scheduled cool setpoint and the auto heat setpoint

becomes the scheduled heat setpoint.

Pressing the MODE and FAN buttons simultaneously when the system mode is Off

has no effect.

When Hold is active, the unit continues to adjust the current setpoint when the

or buttons are pressed. The unit also continues to adjust the current setpoint

when the setpoint signal from the control system changes.

When the system mode changes to Heat or Emergency Heat, the current setpoint is

set to the scheduled heat setpoint.

When the system mode changes to Cool, the current setpoint is set to the scheduled

cool setpoint.

Remote Operation

As an infiNET EX device, the CHV-TSTATEX-FCU can be controlled remotely via

a Crestron control system. Most often, control of the thermostat is achieved via a

touch screen or Web-based graphical interface. In order to extend battery life, the

thermostat only communicates with the control system once every 30 seconds or one

minute, based on the infiNET EX Sleep Time setting. Because of this, there is a

noticeable delay between the time a button is pressed on a touch screen and when the

thermostat reacts to the command. To account for this, the CHV-TSTATEX-FCU

modules written by Crestron and provided in the Crestron Database mimic the

feedback from the thermostat so that the user sees an immediate response on the

touch screen.

Likewise, pressing a local button on the thermostat (for example, setpoint raise or

lower) does not cause an immediate change to the corresponding display on a touch

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