PH/PHX-2 Manual
32
Heaters
WARNING! Only qualified personnel should perform troubleshooting;
unqualified personnel may cause damage to the unit, personnel, or
property and put the operator at risk. The Heaters are components that
reach high temperatures; you must wait until they cool before handling.
NOTE ! The Thermal Limit Switch is a safety switch in contact with the Heater
Body. If the surface temperature exceeds 220 F (109 C) the Limit Switch will
shut off the Heater power. The Limit Switch will not re-set until the
temperature in the Heater is below 190 F(88 C). The system is designed that
in case of an over temperature, a contactor located in the console will open
and disable power to both Heaters and the Hose.
Follow the recommended procedure in the indicated order to solve the problem and
avoid unnecessary repairs. Make sure all Switches are in the correct position and
Indicator Lights ON before determining the existence of a fault.
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