suntouch SunStat 500700-120 Installing

Installing the SunStat
Control
SunStat ™
(Model 500700-120)
The SunStat thermostat
is a simple way to control
an electric floor-warming
system. It is designed for
connection to normal
120-VAC home wiring.

PARTS INCLUDED

• SunStat thermostat
• Floor sensor (15' long wire)
• 2 screws for mounting in
electrical box
• 5 wire nuts for wiring connections
If any parts are missing or damaged, contact the store
where you purchased the thermostat. Do not install a
damaged part.

INSTALLATION

It is recommended that a qualified electrician install the
thermostat and follow all local electrical codes.
The thermostat must only be used to control a resistive
floor warming system. This system must not exceed
1800 watts (15 amps) at 120 V.
Locate the thermostat about 4-1/2' to 5' above the floor
on an interior wall away from direct sunlight and other
heat sources. Do not locate the thermostat on a wall
with hot-water or cold-water piping, or ducting in close
proximity. The floor sensor can be extended up to 50'
away from the thermostat with standard two-conductor
18-gauge wire (uncoiled). The floor sensor wire cannot
pass near high-voltage electrical appliances such as
electric water heaters, air conditioners or electric ranges.
Embed the sensor tip in the heated floor area, locating
it halfway between heating elements.
Install a single-gang extra-deep box (not a "gangable"
type) when only one mat will be connected to the thermo-
stat. In new construction, you may install a 4" square
box when more than one mat will be connected to the
thermostat. With a 4" square box, you will need to attach
a mud-ring or other filler plate to properly install the
thermostat.
Pull the round dial off the front. Gently pull the thin face-
plate from the face of the thermostat to reveal the holes
for the mounting screws provided.
© 2004 Watts Radiant, Inc. Installing the SunStat Control

WIRING

Turn off the power to this electrical circuit at the breaker
panel. Do not turn it back on until connections are fin-
ished and protected.
Begin making connections on the back of the thermostat
with the wire nuts included using one of the following dia-
grams. Remember to connect the floor sensor wire!
Fig. 1. Connection to a single set of mat leads.
Fig. 2. Connection to more than one set of mat leads.
Note: Do not connect more than 1800 watts (15 amps)
to the thermostat. Refer to your mat specifications for
information.
Note: If the floor sensor is not connected to the thermo-
stat the thermostat will sense the air temperature in
front of it instead, becoming an air thermostat.
LIT#SSTATINST1004 Effective 10/12/2004
4500 E. Progress Place
Springfield, MO 65803-8816
Phone: 888-432-8932/417-522-6128
Fax: 417-831-4067
Web: www.suntouch.net
™