Care and Operation
900608-00 01/2019
Innovative Hearth Products
MHD40 Series Multi-View Direct-Vent Gas Fireplaces
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
52
MAINTENANCE TASK
ACCOMPLISHING PERSON
PROCEDURE
Inspecting/Cleaning Burner, Logs
and Controls
Qualified Service Technician
Inspect valve and ensure it is properly operating. Check piping
for leaks. Vacuum the control compartment, fireplace logs and
burner area.
Check Flame Patterns and Flame Height Qualified Service Technician
Refer to
Figure 52
on
Page 33
and verify the flame pattern
and height displayed by the appliance conforms to the picture.
Flames must not impinge on the logs. Ensure flames are steady
(not lifting or floating).
Inspecting/Cleaning Pilot and Burner
Qualified Service Technician
Refer to
Figure 50
on
Page 31
. Remove any surface build-up
on pilot and burner assembly. Wipe the pilot nozzles, igniter/
flame rod and hood. Ensure the pilot flame engulfs the flame
sensor as shown.
Checking Vent System
Qualified Service Technician
Inspect the vent system at the top and at the base (within the
firebox) for signs of blockage or obstruction. Look for any signs
of dislocation or deterioration of the vent components.
NOTE
: Excessive condensation can cause corrosion of caps,
pipe & fittings (excessive condensation can be caused by long
lateral runs, too many elbows and/or exterior portions of the
system being exposed to cold weather). Also inspect wall straps
or plumbers's tape to ensure it is secure and in place.
Appliance Checkout
Qualified Service Technician
Perform the appropriate appliance checkout procedure detailed
in this manual.
Replacing Glowing Ember Materials
(rockwool)
Homeowner/Qualified Service
Technician
Remove old glowing ember materials and vacuum the ember
placement area. Place new embers as described in this document.
Periodically
(After the Burning Season)
MAINTENANCE TASK
ACCOMPLISHING PERSON
PROCEDURE
Cleaning Firebox Interior
Homeowner
Carefully remove logs, glowing embers (rockwool), volcanic
stone and vermiculite. Vacuum out interior of the firebox. Clean
firebox walls and log grate. Replace logs, glowing embers and
vermiculite as detailed in this manual.
Check Flame Patterns and Flame Height Homeowner
Refer to
Figure 52
on
Page 33
and verify the flame pattern
and height displayed by the appliance conforms to the picture.
Flames must not impinge on the logs.
Checking Vent System
Homeowner
Inspect the vent system at the top and at the base (within the
firebox) for signs of blockage or obstruction. Look for any signs
of dislocation of the vent components.
Cleaning Front Glass Enclosure Panel
Homeowner
Clean as necessary following the directions provided in this
manual.
DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS
WHILE HOT
.
Annually
(Before the onset of the Burning Season)
MAINTENANCE SCHEDULE
f i r e - p a r t s . c o m
