Pilot Adjustment

HearthStone Quality Home Heating Products Inc

CHAMPLAIN Gas-Fired Direct Vent

touched. Use only metal tools for this adjustment.

Moving the nut toward the front of the stove increases the air and moving the nut toward the back of the stove decreases the air. Tighten the nut after making adjustment. The air shutter is factory set and only a qualified gas technician should make adjustments.

Note: Very little movement is needed to substantially change the burn and flame patterns.

Some conditions cannot be corrected

through air shutter adjustment; an adjustment must be made to the gas supply pressure. Supply line/manifold gas line pressure adjustments must be performed by qualified service personnel. Do not attempt to complete any part of the installation or adjustment of this unit unless technically qualified to do so.

The pilot light is preset by the manufacturer and should not need adjustment. The pilot light flame should be large enough to engulf the thermopile and thermocouple located next to the pilot, but not so large as to create excessive noise or consume excessive gas. (Refer to figure 18) However, it can be adjusted by means of the pilot light adjustment screw located on the gas control valve. Open the valve door to access the pilot adjustment screw. Note that the pilot flame must engulf the thermopile so that the thermopile can generate sufficient

milli-voltage (325 to 500-mv) to power the milli-volt gas control valve. The flame on the pilot should look like Figure 18. Controlling the Champlain by the wall- mounted thermostat may become erratic, nonexistent, or the unit may go out, if the pilot flame is too small or misdirected away from the thermopile.

Figure 18 Pilot Adjustment

WARNING

The control has an interlock device. If the stove has been lit, it will not relight immediately. After shutting off all gas flow, the pilot burner cannot be relit until the thermocouple has cooled, allowing the electromagnet to be released (Approx. 60 sec.). The gas control knob is designed to be operated by hand. Do not use any tools during this operation.

BURNER FLAME APPEARANCE

Once the unit is lit, observe the flame pattern and adjust as necessary. Also, a periodic visual check of the burner flame should be performed. The burner flames can be adjusted by means of the air shutter. To determine if the burner flame needs adjustment, it is necessary to view the flame pattern with the variable output control knob at its highest setting (turn fully clockwise). Allow the unit to operate for 10 minutes enabling the entire unit to reach temperature and for the flame pattern to stabilize. The flame pattern should be similar to the one shown in Figure 19. There are several guidelines to aid in determining if the flame pattern is correct:

1.The flame should not be dirty, smoky, sooty, or lick the top of the stove.