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Installing multiple undertile heaters
When installing two or more heaters, begin by reading the sizing guide on page 18 of this
booklet to ensure you have the proper number and size of heaters for the area you wish to
heat. The sizing guide will also tell you the perimeter and space heating cable spacing
required for your particular room size
.
After you prime the subfloor, mark the subfloor as per the instructions on page 17 and lay the
first heater. Do not cover the first heater with tape at this point as you may wish to slightly alter
the spacings later on. Lay the second heater in the remaining area using the same perimeter and
space heating cable spacings as the first heater and test the second heater.
When laying more than one heater, it is important to keep these points in mind:
1
The space heating cables
may not touch
or cross at any point.
2
The heaters are joined in parallel only at the Thermostat.
Do not attach one heater to another in series.
3
The space heating cable spacings for all heaters in an area should be approximately
equal
.
15
Summary of Contents for USDW360
Page 9: ...9 Making electrical provision for the heater ...
Page 10: ...10 Heater Information ...
Page 11: ...11 ...
Page 14: ...Wiring configurations 14 ...
Page 26: ...26 NOTES ...
Page 28: ......