Yearly Service Procedure - Monessen Hearth IDV SERIES IDV380NVC Installation And Operating Instructions Manual

MAiNteNANCe

yeARly SeRViCe PROCeDuRe

Failure to inspect and maintain heater may lead to improper combustion and a potentially dangerous
situation. A qualified technician should do the following once a year.
1. Check pilot flame. Flame should touch approximately 3/8" of the top of thermopile and touch top
of thermocouple. Figure 43. If not, contact dealer for service.
. Turn gas control knob to "OFF" position to shut off gas to heater. See step "To Turn Off Gas", Page
26. Allow heater to cool for 15 minutes. Remove faceplate (see instructions included with face
plate) and glass. Page 28.
3. Carefully remove log set. If logs are severely deteriorated, replace logs. Check logs for sooting. A
small amount of soot along bottom of logs is normal. If excessive sooting is found, heater must be
adjusted. Contact dealer where you bought heater.
4. Clean burner and burner ports. Figure 44
5. Replace log set and rock wool per instructions on Pages 19-1. Replace glass. Make sure gasket
along perimeter of glass contacts face of firebox and forms an airtight seal. Realign if airtight seal
is not formed. Replace glass and glass frame if damaged.
6. Inspect area behind face plate. Clean if necessary. Check gas control valve and all gas lines. If
damaged, do not use heater. Contact your dealer.
7. Start pilot and turn on main burner. Flames should be orange/yellow and not touch top of firebox.
If pilot or main burners do not burn correctly, contact your dealer for service. Monitor blower opera-
tion.
Thermocouple
Figure 43 -
Before taking unit apart, check pilot
flame. Flame should touch thermo-
couple and thermopile.
57D0016
Thermopile
FP1943
FP1943
pilot flame
Figure 44 -
Check Burner Ports and Burners
Check Burner Ports
FP2640
burner ports
IDV380/IDV490 Fireplace Insert
FP640
31