syncFURNACE OD Instruction & Installation Manual – Rev 09 Pg. 38 of 81
CONNECTING CONTROL (LOW-VOLTAGE) WIRING:
Ensure the main supply power to syncFURNACE is turned OFF whenever the control wiring panel is
removed.
Under any circumstance is there ever a need to apply an external power source to any of the low-voltage
connection terminals. DO NOT APPLY EXTERNAL VOLTAGE TO THE LOW-VOLTAGE CONNECTION
TERMINALS.
Note: See appendix for typical low-voltage external wire schematic.
Electric Shock Hazard. Can cause injury or death. Before attempting to perform any
service or maintenance, turn the electrical power to unit OFF at externally installed
service switch.
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