Install Instructions

IOM-WR-SH 1528 16 of 24
STEP 5.1
Install the Controls
If it has not already been done, install an electrical box for the SunStat thermostat and SunStat
Relay. See Step 2.2 for details.
STEP 5.2
Read and follow the instructions included with the SunStat thermostat and SunStat Relay for
complete connection instructions, requirements, and mounting.
Most laminate and wood floor manufacturers specify their flooring should not be subjected to
temperatures over 82° to 84°F (27° to 28°C). Check with the flooring dealer or manufacturer
and set the thermostat Floor Limit temperature appropriately.
Refer to the installation sheets provided with the controls for proper setting. The system
should now operate as designed. Please leave this instruction manual, SunStat instructions,
and copies of photos of the installed heating system with the end user.
Phase 5: Control Installation
The ground wire supplied with the cable must be connected to a suitable grounding/earthing
terminal.
STEP 5.4
System Start Up
After all controls are installed, do not energize the system, except to briefly test operation of
all components (no longer than 10 minutes). Do not put the system into full operation until the
flooring installer verifies all cement materials are fully cured (typically two to four weeks). See
concrete manufacturer’s instructions for recommended curing time.
STEP 5.3
Make any final connections to the circuit breaker or branch circuit source.
Make sure 120 VAC is supplied to 120 VAC cable and 240 VAC is supplied to 240 VAC cable.
Otherwise, dangerous overheating and possible fire hazard can result.