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Installation Manual

ManualsBrandsWarmlyYours ManualsAppliancesWHMA-120-0205 2' x 5' Snow Melt Mat with 120 Volts, 10 Sq. Ft. Coverage, 4.17 Amps and 1707 BTU Per Hour
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APPENDIX L:
SNOW MELT DIAGRAM 240V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH MANUAL CONTROL
240V CIRCUITS
120V
SWITCHED
POWER
outsideinside
240V
240V
240V
240V
240V
240V
240V
J-BOX
J-BOX
HEATER CABLE / MAT #1
HEATER CABLE / MAT #2
HEATER CABLE / MAT #3
HEATER CABLE / MAT #4
HEATER CABLE / MAT #5
HEATER CABLE / MAT #6
SCM-120
DIAL TIMER
CONTROLLER
120/240 VAC
BREAKER PANEL
RLY-12P
RELAY PANEL
Heater cable 20ft cold leads to be taken through
3/4” (19mm) rigid metal conduit back to J-boxes.
Installer may use more J-boxes
outside or inside building.
120V
CONTROL
POWER
(conduit size as per installer / local code requirements)