Installation Manual

24
APPENDIX N:
SNOW MELT DIAGRAM 208V - TYPICAL LINE DIAGRAM (FOR 6 CIRCUITS/CABLES) WITH MANUAL CONTROL
208V CIRCUITS
120V
SWITCHED
POWER
outsideinside
208V
208V
208V
208V
208V
208V
208V
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
120/208 VAC
BREAKER PANEL
RLY-12P
RELAY PANEL
Heater cable 50ft 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)