Rinse Tank Heater System - Jackson 10 Series Installation, Operation And Service Manual

RINSE TANK HEATER SYSTEM

RINSE TANK
HEATER SYSTEM
CAUTION:
Always remove the power
to the machine before
working on the control
panel or while servicing
the components on the
switch panel. All electrical
checks should be made by
qualifi ed personnel.
07610-002-41-09-F
The rinse tank heater system is electrically connected in the circuit and is controlled by a
heater switch (mounted on the front panel) and a thermostat (mounted underneath
near the right-front leg) which activates the coil on the heater relay, mounted in the
control box. When higher temperature is required, power is applied to the heaters
(mounted on the right-end of the built-in boosters) when the contacts of the heater
relay are closed. Should the rinse tank thermometer read either too high or too low,
follow checkout below.
CHECKOUT OF HEATER SYSTEM FOR RINSE TANK (refer to diagram on pg. 25)
NOTE: THE FOLLOWING CHECKOUT SHOULD BE DONE BY A QUALIFIED
SERVICE PERSON OR ELECTRICIAN.
1. If temperature is too high, adjust thermostat using thermostat instructions on the
previous page.
2. If temperature is too low, adjust thermostat using thermostat instructions on the
previous page, then:
a. Turn off power to machine by tripping customer circuit breaker to "off" position.
b. Remove lower cover plate on control box (held by a single screw).
c. Make sure rinse temperature is below 180°F (preferably about 140°F).
d. Re-apply power, turn on master switch, and observe heater relay (2 pole
mounted at the lower-left inside the control box, letter "C" in diagram on pg. 25)
as heater switch is turned on and off several times.
NOTE: ELECTRICAL POWER IS STILL APPLIED, SO BE CAREFUL. (Remove the
control panel from the control box by loosening the four screws holding it.
Hang the control panel using the two right-hand screws with the back side of
the panel outward. Refer to page 22 for replacement of switch in control panel.)
1. If heater relay contacts do not close, with the heater switch on:
a. Check power supply at Position 1 on terminal board X. Voltage should be
208-230 Volts. If not, check customer's breaker. If defective, replace.
b. Check position 2, voltage should be 0 Volts. If not, check thermostat, adjust
per instructions, check master and heater switch. If any items are defective,
replace.
c. Check position 3, voltage should be 208-230 Volts. If not, check wiring for
breaks or poor connections.
d. If voltage is being applied to Positions 1 and 3 and the relay doesn't operate, it
should be replaced; coil on relay is probably open.
SERVICE
PROCEDURES
24