Installation; Before Installing The Unit; Place And Secure Appliance - Monessen Hearth MJ27NR-S Installation And Operating Instructions Manual

Unvented gas log heater
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INSTALLATION

BEFORE INSTALLING THE UNIT:

Turn OFF the gas supply to the fireplace or firebox.
Seal any fresh air vents and/or ash clean-out doors
located on the floor or wall of the fireplace. If left un-
sealed, drafting may cause pilot outage or sooting� Use
a heat resistant sealant� Do not seal the chimney flue
damper.
WARNING!
Before installing in a solid fuel burning fireplace,
The chimney flue and firebox must be cleaned
of soot, creosote, ashes and loose paint by a
qualified chimney cleaner.
You must secure the gas log heater to the
fireplace floor. If not, the entire unit may move
when you adjust the controls. Movement of
unit may cause shifting of the gas logs which
leads to sooting and improper burning. Grate
movement could cause a gas leak.
Special care is required if you are installing
the unit into a sunken fireplace. You must raise
the fireplace floor to allow access to gas log
controls. This will insure adequate air flow and
guard against sooting. Raise the fireplace floor
using noncombustible materials, as described
in Placement in a Fireplace with Restrictive
Barrier on Page 6.
Monessen • MJ27NR-S/MJ27PR-S Owner's Manual • 20308677 • Rev B • 01/17
10
WARNING!
"MOJO" Series Unvented Gas Log Sets

PLACE AND SECURE APPLIANCE

Assembly Procedure:
1. Center the gas log unit on the fireplace or firebox. Make
certain the front of the burner sits inside the front edge
of the fireplace or firebox.
2� Anchor holes are located on the right and left sides of
the unit� After centering the burner correctly, mark the
hole positions on the fireplace/firebox floor. Drill two (2)
5/32" diameter holes approximately 1
3. Anchor the burner to the fireplace/firebox floor using
the screws provided� Figure 12
Proper installation of the heater is essential to prevent
any movement of the gas logs and controls during
operation.
Screw
Figure 11. Secure Heater to Floor of Fireplace/Fire-
FP2006
box
secure to floor
1
/
" deep�
2
Screw
FP2006
Anchor Hole

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