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14
WARNING:
BEFORE MAKING ANY ELECTRICAL CONNECTIONS SWITCH POWER OFF AT
SERVICE PANEL, FUSED DISCONNECT OR CIRCUIT BREAKER AND LOCK THE DISCONNECTING
MEANS TO PREVENT POWER FROM BEING SWITCHED ON ACCIDENTALLY.
1. A 7/8” opening is provided on top or bottom of the cabinet. The control wiring should pass through the opening to the
terminal strip.
NOTE:
A built-in transformer provides power for the control circuit. No outside power supply is required for the control
circuit.
2. If an air flow switch or high limit humidistat is not used, jumpers must be installed before the humidifier will operate.
Controls should be connected to the terminals on the circuit board as shown in
Figure L
using #18 AWG wire.
Avoid running control wiring near high voltage wires.
NOTES:
1. Observe proper polarity when using
voltage or current measuring devices.
2. If air flow and high limit switches are
not used, a jumper must be installed.
Supplied By Carnes
Supplied By Others
CONTROL CONNECTIONS -
Figure L