Founten FS-STAT-32ACH User manual

Installation Guide
FS-STAT-32ACH
Thermostat with Humidity Control
Caution
Failure to follow these instructions can damage the product or cause a hazardous
condition. isconnect power during the installation of this product. All wiring must
conform to local codes and ordinances. This thermostat is designed for use with 24
VAC systems.
For additional assistance visit www.Founten.com to request support.
Before Removing Old Thermostat
Note the colors and letter designations of the terminal connections on the existing
thermostat to assist in identifying the correct wiring connections.
Wall Mounting
The rear cover of the thermostat is mounted to the wall. To separate the front cover
from the rear cover, simply grasp the front and back of the thermostat firmly and pull
apart.
Attach the rear of the thermostat to the wall using the included Plastic Anchors.
Position the rear cover so that the wires can be fed through the rectangular opening
in the back of the thermostat. Then mark the locations of the mounting points on the
wall. rill a 3/16” hole for each anchor. Insert the anchors into the wall and attach the
rear cover using the included screws. The thermostat can also be mounted to an
electrical box using the included machine screws.
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Terminal Designations
Conventional Heat Pump
R 24 VAC Power for Heat
Rc 24 VAC Power for Cool
C Common 24 VAC
Y Cool Control – stage 1
W Heat Control – stage 1
G Fan Control
W2 Heat Control – stage 2
Y2 Cool Control – stage 2
Hu Humidify
h ehumidify
ata (Not Used)
R 24 VAC Power for Heat
Rc Jumper to Terminal “R”
C Common 24 VAC
Y Compressor – stage 1
O/B (W) Reversing Valve
G Fan Control
Aux (W2) Auxiliary/Emergency Heat
Y2 Compressor – stage 2
Hu Humidify
h ehumidify
ata (Not Used)
Note Remove jumper between R & Rc for two Transformer systems.
Standard Wire Colors
Most thermostat installations follow standard wire color designations. This should be
verified for your installation. These standard colors are:
Terminal Color Description
R, Rc Red 24 VAC Power
W White Heat Control
G Green Fan Control
Y Yellow Cool Control
C Black 24 VAC Common
Y2Blue or Orange Cool Control - Stage 2
W2Varies Heat Control – Stage 2
Aux Varies, blue,
pink, gray, tan
Auxiliary or Emergency
Heat
O/B Varies, Orange Reversing Valve
Hu Varies Humidify Control
h Varies ehumidify Control
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Wiring Guide
The follow wire connection guide should be used for your installation. This guide
shows the most common configurations. Contact Founten for assistance with
configurations not shown on this guide.
Conventional Systems
(Single Transformer) (Two Transformers)
1 Heat, 1 Cool & Humidity 1 Heat, 1 Cool & Humidity
2 Heat, 1 Cool & Humidity 2 Heat, 1 Cool & Humidity
2 Heat, 2 Cool & Humidity 2 Heat, 2 Cool & Humidity
1 Heat, 2 Cool & Humidity 1 Heat, 2 Cool & Humidity
Heat Pump Systems
1 Heat, 1 Cool & Humidity 1 Heat, 1 Cool, Aux Heat & Humidity
2 Heat, 2 Cool & Humidity 2 Heat, 2 Cool, Aux Heat & Humidity
Humidity Control
The humidity control terminals provide 24VAC 1Amp outputs. Systems which are
controlled by dry contact inputs will require an additional 24VAC relay which is
powered using the humidity control output and Common.
Configuration
All of the thermostat configuration settings can be made through the Founten Site
Manager Web Application. These can be found under the Admin section. Each
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thermostat will be listed with it's serial number and the label Thermostat Setup. Most
configuration items can be left at their default setting. For proper operation it is
necessary to set the correct System Type (Conventional or Heat Pump). If the Web
Application is not yet available, the System Type can be set directly using the
thermostat front keypad.
Setting System Type Using the Keypad
The thermostat can only be placed in configuration mode during the first minute after
the unit has been powered on. If the unit has already been running for longer than 1
minute, remove the front of the thermostat from it's base and then re-attach it. This
will cause it to recycle the power.
With the thermostat powered on, verify that the System Mode is “Off”, then press and
hold the up and down arrow keys simultaneously for 5 seconds. This will place the
thermostat in configuration mode and the display will change to show one of the 3
possible system type settings:
Conventional System ( efault)
Heat Pump
“W” Terminal Controls Reversing Valve.
Energized for Cool.
Heat Pump
“W” Terminal Controls Reversing Valve.
Energized for Heat.
The system type can now be selected by pressing the up arrow key on the
thermostat. Once the correct setting has been selected, press any other button and
the thermostat will return to normal operation.
Alternate Limited Wiring Installation
Some installations may have limited in-wall wiring. In these cases the thermostat
can be specially configured to use only 3 wires. This configuration is accomplished
by removing the internal WM500 Wiring Module which is included in every
thermostat and installing it at the furnace location. This configuration can be used
when a Common wire is not available to power the thermostat or when a site is
upgrading a single stage system to a multi-stage system.
To remove the Wiring Module, start by loosening the R and Rc terminal screws and
removing the jumper between R and Rc. Loosen the three terminals on the Wiring
Module labeled R, C, and . Slide the module to the right and remove from the rear
of the thermostat.
Install the Wiring Module inside the furnace using the standard terminal designations
shown above. In single transformer systems connect a jumper wire between R and
Rc on the Wiring Module.
Now connect the R, C, and wires from the Wiring Module to the matching
terminals on the Thermostat using the existing in-wall wiring.
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