Mendota ML39 Assembly, Installation And Operating Instructions page 75

Can I use my Fireplace during power outages?
This electronic ignition system uses the supplied 110VAC power when it is available for all functions of this system. If
you experience a power outage, plug in the battery pack (6V DC maximum, supplied with this fireplace) to the fireplace
backup power inlet port.
During the power outage, the fireplace's burner will function as well as the flame height adjustment. The fan and accent
light, which are dependent on 110VAC power, will not function.
Your installer should demonstrate the backup DC power pack during power outages. Be sure to retain the DC battery pack and
the connecting harness in a safe and secure place for use during power outages.
What maintenance is required?
Required Annual Maintenance
The following procedures must be performed each year by a qualified installer, service agency or the gas supplier.
Note: Any adjustments to burner, pilot or logs must be done by a qualified installer, service agency or the gas supplier.
Recommended steps for yearly maintenance:
1. Clean all lint and dust build-up around the control. Inspect the condition of any wiring under the burner for melting or
damage.
2. Clean pilot light flame sensor rod and sparker rod using emery cloth. Vacuum clean pilot light assembly.
3. Visual check of pilot flames is required. Pilot flame must overlap flame sensor and burner ignition ports always. Especially
for LP gas applications, always verify visible pilot flame length is at least 1" long.
4. Visual check of main burner's flames is required.
5. Remove logs and coals and clean away any foreign matter (lint, carbon, etc.) on the burner and logs.
6. Clean under side of the logs for any carbon deposits. Note: Logs should be visually checked for carbon buildup. If carbon
deposits are visible on logs, unit should be turned off and a qualified installer, service agency, or the gas supplier
contacted. Be sure logs are re-installed per instructions.
7. Check condition of glass door gasket, gasket must seal tightly over firebox. Inspect gasket along top and sides of glass. If
gasket bulb along top edge or side top areas are discolored to a white color appearance (through the whole thickness of
the gasket bulb in a 3" to 12" long area) and the gasket adhesive in no longer functional to stick to glass, then replace the
gasket.
8. Visually inspect the vent terminal (vent cap) for leaves, twigs and other debris accumulation. Clean if required.
9. Clean door glass.
10. Clean enamel firebox lining, if one is installed.
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Figure 5-4 Backup DC Power Connection
ML39 Page 75