User Guide

5
Incoming Power
The incoming power to the insert is 120vac/60Hz and will draw 15amps when running both heater
elements at a total of 1500watts. The incoming power, L1, is protected by a circuit breaker located on
the back of the insert. Also the insert is protected by a normally closed tip switch in series with the circuit
breaker located inside the top left hand side compartment. To reach this switch the top front grill and the
top cover must be removed. The hot lead, L1, is landed on terminal AC-L3 on the main control board. Refer
to Figure 4. The common, L2, is landed on terminal AC-N4 on the main control board. When the insert is
plugged into an 120vac source there should be 120vac between terminals AC-L3 and AC-N4 on the main
control board. If not, inspect plug and plug wire for damage. Also check to make sure the 120vac source is
not shut off by either a circuit breaker and/or switch controlling the 120vac source. The ground is landed
to the case. Refer to Figure 3.
Figure 3, Main control board location
AC-N1 AC-N2 AC-N3 AC-N4
Figure 4, Main control board terminal locations
Circuit Breaker
Tip Switch
Main Control Board
AC-L3
AC-L2
AC-L1
750W
750W
FLAME
FAN
LAMP