Henny Penny 500 Service Manual page 118

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THERMOSTAT
(PART NO. 16412)
THERMO!STAT
(PART NO. 16751)
47
THERMOSTAT
(PART NO. 16632)
HEAT CONTACTOR
All model fryers have a drain micro-switch in line with
the gas control valve or heat contactor and the thermo-
stat. When the drain valve is opened to drain the short-
ening this causes the drain switch to open, shutting
down the gas to the burners or shutting off electrical
power to the heating elements.
efore starting this procedure, move MAIN
OWER switch to the OFF position. Disconnect
main circuit breaker at the circuit breaker box
and/or unplug service cord from wall receptacle,
or electrical shock could result.
1. The following checks should be made to determine
if the DRAIN SWITCH is defective. All checks
should be made with the drain valve in the closed
&F?
position.
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a. Fryers with standard thermostat part number
18412, the continuity check shall be made be-
tween terminal 52 on the thermostat, and ter-
minal 33 on the heat contactor. If the circuit is
open, the
TCH is bad and needs to
be replaced.
b. Fryers with two stage thermostat part number
16751, the continuity check shall be made be-
tween terminal 43 on the thermostat, and ter-
minal 33 on the heat contactor. If the circuit is
open, the AIN SW
is bad and needs to
be replaced.
c. ryers with dual indicating thermostats part
number 16632, the continuity check shall be
made between term al 47 (remove wire nut) at
the thermostat,
an terminal 33 on the heat
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