Lochinvar 999 - 750 OPERATION Continued, Lighting Instructions, Control Panel Cover ON/OFF Switch

Hydronic Heating Boilers and Domestic Water Heaters

OPERATION Continued

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electric switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbors phone.

•Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

C.Use only your hand to turn the gas control lever. Never use tools. If the lever will not turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D.Do not use this boiler if any part has been under water. Immediately call a qualified service technician to replace the boiler. The possible damage to a flooded boiler can be extensive and present numerous safety hazards. Any appliance that has been under water must be replaced.

LIGHTING INSTRUCTIONS

1.STOP! Read the safety information.

2.Program the temperature control to the desired settings (see Programming Temperature Control, page 43).

3.Loosen knurled knob at bottom of control panel cover (see FIG. 43).

4.Grasp bottom of control panel cover and pull out.

5.Locate ON/OFF switch inside control area. Switch is located to the left of pull out control circuitry tray (see FIG. 44).

6.Turn power switch to “OFF” position.

7.This unit is equipped with ignition devices which automatically light the burners. Do not try to light the burners by hand.

FIG. 43 Control Panel Cover

FIG. 44 ON/OFF Switch

8.Turn the manual gas cock clockwise to the “OFF” position.

9.Wait five (5) minutes to clear out any gas. If you smell gas, STOP! Follow “B” in the safety information. If you do not smell gas, go on to the next step.

10.Turn the manual gas cock counterclockwise to the “ON” position.

11.Turn power switch to “ON” position.

12.Slide control panel assembly back into unit. Tighten knurled knob at bottom of control panel cover.

13.If the unit will not operate, follow the instructions “To Turn Off Gas To Appliance” and call your service technician or gas supplier.

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