Vanguard Heating PM400, PM200 operation manual For your safety, read completely before operating

POWERMAXtm START-UP PROCEDURE

For your safety, read completely before operating.

CAUTION: DO NOT turn Power Switch ‘on’ until the booster has been filled with water and all air has been purged from the water lines and accumulator tank.

FILL THE BOOSTER HEATER

Open the water supply valve at the Booster Heater water supply inlet and fill Booster Heater. Manually open the temperature/pressure relief valve on the left side of the cabinet to vent air from water piping. Cycle dishwasher to ensure that all air is purged from the system and to flush out any contaminants left from piping process.

CHECK ELECTRIC CONTROLS

Do this procedure with the manual gas valve CLOSED (gas supply off). With water supply valve open (water side under pressure) and with manual gas supply valve in CLOSED position (no gas flow to unit), push power supply rocker switch on left, top side of cabinet to ON position. Combustion air fan should start, digital temperature readout should illuminate and indicate water temperature in accumulator tank and LED indicators in readout panel should illuminate. If water temperature is below control set point, circulating pump will start, air flow, water flow and hi-limit E.C.O.’s will prove and ignition system will be powered. Red LED on ignition control will illuminate briefly, confirming internal self- check. Following 2-3 seconds igniter warm-up (observe igniter through viewing window to verify), an audible ‘click’ will be heard from the gas valve opening. With gas supply off, ignition will not occur and flame-proving sensor will shut off gas valve. This process will repeat for, 3 cycles, after which the ignition system will automatically lock-out, requiring a manual re-set. The combustion fan will remain on low speed, providing a continuous purge of the combustion chamber. Manual re-set is accomplished by turning off power switch on booster left side panel for 10 seconds, then turning back on.

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