Support Module Installation and Wiring
39
ViewStat Communicating Thermostat
10.
Mount the thermostat on the sub-base and confirm that it is displaying the right temperature
from the support module or remote sensor.
Multiple Support Module Installation
Up to 4 support modules can be connected to provide temperature or humidity averaging in a large
area or for several zones being controlled by the same system. The maximum cumulative distance
of all the support modules from the ViewStat is 1000 ft (304.8 m).
FIG. 28 shows daisy-chaining of the VST-TTM Remote Temperature and VST-TRH Remote
Temperature/Humidity Sensors.
1.
Remove the thermostat from the sub-base.
2.
Wire the first sensor using the single support module instructions. Daisy chain the remaining
support modules as shown below (FIG. 29).
3.
Set the VST-TTM or VST-TRH Support Module DIP switches as described in the following
Setting the Support Module DIP Switches
section.
4.
Replace the thermostat on the sub-base. Check for proper operation of each sensor.
DIP switches must be set prior to powering the support module (support module is
powered when thermostat is returned to its base). If switches need to be changed
after powering the support module, the thermostat must be removed from its base for
a minimum of 15 seconds to ensure proper reset of the support module.
FIG. 28
Daisy-chaining VST-TTM Remote Temperature and VST-TRH Remote Temperature/Humidity support
modules
To other support modules
(maximum of 4 total)
VST-TSF
Flush-mount Indoor
VST-TTM or VST-TRH support modules
ViewStat (faceplate removed)
remote sensor
VST-TSO
Duct/Outdoor
remote sensor
Always make sure that there is no power to the modules by removing the thermostat
from the sub-base.
FIG. 29
Daisy-chaining support modules
Thermostat
Module 1
Module 2
Module 3
Module 4
RSR
RSC
RSB
RSA
RSR
RSR
RSR
RSC
RSC
RSC
RSB
RSB
RSB
RSA
RSA
RSA
RSR
RSC
RSB
RSA
Содержание ViewStat
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