Mendota D30 Installation And Operating Instructions Manual page 68

Periodic Inspection
Follow these steps for periodic inspections:
1. Check to verify that the vent system and vent cap are open and free of blockage.
2. Before re-installing glass, have qualified service person check the operation of the pilot and cycle the burner per lighting
instructions. Be sure all items in lighting and installation checklists are completed.
3. Periodic visual check of pilot flames is required. Pilot flame must overlap thermocouple tip and burner ignition ports
always. Especially for LP gas applications, always verify visible pilot flame length is at least 1" long.
4. Periodic visual check of main burner's rear and front flames is required.
How do I clean the viewing glass?
The viewing glass should be cleaned periodically. Exterior glass surface may be cleaned with cleaner as desired. To clean interior
glass surface, use Kel Kem Polish Plus (part # 65-06-00455) or a comparable product. Caution: Do not use oven cleaner to clean
glass. Clean the glass only when it has cooled to room temperature.
Additives that are put in gas (both natural and propane) to make it smell can be harmfu l to glass and can
leave a white film deposit on the glass. This deposit can be removed , if cleaned in a timely manner, with
cleaners such as KEL KEM "Polish Plus" (part # 65 -06-00455) or comparable product (contact your dealer).
Is my flame performance correct?
Your fireplace insert has air shutters, dampers, coals, and embers that can be adjusted depending on your fuel and venting
configuration. These adjustments should be made by a qualified technician to achieve the best flame performance. Contact your
installer or Mendota dealer if you feel your fireplace insert is not burning correctly. Improper setup and adjustment is not
covered under warranty.
What should I do if my fireplace insert is sooting?
Sooting is caused by improper installation or air shutter operation. However, some small areas of soot deposits on log surfaces
are deemed acceptable. If you observe large soot areas (larger than 1"x1") on log surfaces or signs of sooting on the door glass
(usually a thin black film on the Fireplace insert viewing glass or on the outside of the home around the vent cap), the unit must
be immediately turned off and the local Mendota dealer promptly informed. Mendota dealers will correct "sooting" problems,
but Mendota and their dealers are not responsible for damage caused by excessive sooting that has not been immediately
brought to their attention. Troubleshooting soot:
Issue: Possible Causes:
Thin black A. Burner Air Shutter closed too
coating (soot) much.
forms on B. Improper log and/or ember
viewing glass. placement
C. Glass door seal is
compromised.
D. Incorrect gas pressure or
burner orifice size.
After completing these steps, contact your Mendota dealer if fireplace insert won't turn on.
What happens when I first light my fireplace insert?
When you first light your fireplace insert, the initial curing phase is initiated. During the initial curing phase, a small amount of
smoke and odor will be emitted. This is normal. To complete the curing process, run your fireplace insert, on high fire, for two
hours with the fans on level 3. Open doors and windows to dissipate any odor. Turn your fireplace insert off. After it has cooled,
run it again, on high fire, with the blowers off until no smoking or odor remains. Refer to
for more information.
Curing Instructions
85-03-01071
Corrective Action:
Open air shutter on burner fully. Check glass gasket for proper
seal. Corners of glass gaskets cannot be bulging out. If glass gasket
along top edge in the middle is white in color across entire
thickness of gasket bulb and gasket adhesive is not functional,
replace glass gasket. If sooting continues, shut off unit and call
Mendota service person. Have service person check for proper
Orifice Sizes and correct gas outlet pressure (3.5" W.C. Nat. Gas;
10" W.C. LP Gas).
NOTE: To clean glass - remove glass and wipe glass with cloth or
paper towel.
D30 DEEP TIMBER
Chapter 3.1.1 Mendota Fireplace insert
Page 68