THIS PROCEDURE MUST BE PERFORMED BY A QUALIFIED TECHNICIAN.
WARNING
HAZARDOUS VOLTAGE: Risk of electric shock. Can cause injury or death. Do not energize the system until installation is complete. Equipment MUST be installed by a qualified technician in accordance with all applicable local, state, and national codes and regulations.
Description
In standard configuration, the Comfort Plus is wired for connection to 240V, however, the element circuits can also be connected to 208V. A 208V connection derates the charging input of the system by 25%. If a system rated specifically for 208V or 277V is required, contact the factory. The controls circuit in the Comfort Plus system MUST be connected to 240V/208V.
The 60 amp breakers located in the electrical compartment on the Comfort Plus feed the core charging (element) circuits. The 15 amp breaker feeds the controls and blowers circuit.
NOTE: All Comfort Plus systems are factory configured to be field connected to multiple line voltage circuits. If a single feed line voltage circuit is desired, an optional single feed kit is available from the factory.
To determine the correct wire size required for each circuit feeding the Comfort Plus, refer to the system specifications and/or the system's identification label located on the lower front of a 3100 series system and the lower left side of a 4100 series system. See links at bottom of page.
NOTE: To ensure proper operation and safety, all line voltage circuits must be segregated from low voltage wiring in the Comfort Plus.
Remove Electrical Panel Cover
Remove the electrical panel cover.
Route Line Voltage Wires
Route all line voltage wires through a knockout and into the electrical panel of the Comfort Plus.
Make Proper Field Connections
Make proper field wiring connections to the Comfort Plus breakers. Refer to the Line Voltage Wiring Diagrams for more information on these connections.
NOTE: To reduce electromagnetic fields associated with electrical circuits and to avoid induced voltage on sensors and electronic devices, the circuit phasing MUST be alternated.
