Fuel Type; Gas Pressure; Gas Service Access - Monessen Hearth Mojo Series Installation & Owner's Manual

B. Fuel Type
• This appliance is equipped for either natural or propane
gas. Field conversion is not permitted.
• Make sure the appliance is compatible with available gas
types.
C. Gas Pressure
• Optimum appliance performance requires proper input
pressures.
• Gas line sizing requirements will be determined in ANSI
Z223.1 National Fuel Gas Code in the USA.
• Pressure requirements are:
Inlet Minimum
Inlet Maximum
Gas Valve Manifold
Pressure Setting
Pilot Regulator
WARNING! Risk of Fire or Explosion! High pressure
will damage valve. Low pressure could cause explosion.
• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.
• Install regulator upstream of valve if line pressure is
greater than 1/2 psig.
• Valve pressure taps are accessible by removing the right
side log. See Figure 4.2.
16
NATURAL PROPANE (LP)
5.0" w.c. 11.0" w.c.
10.5" w.c. 13.0" w.c.
3.5" w.c. 10" w.c.
3.5" w.c. —
Monessen • Mojo Installation/Owner's Manual • 4623-900 Rev. D • 04/21
Note: Have the gas supply line installed in accordance with
local codes, if any. If not, follow ANSI 223.1. Installation
should be done by a qualified installer approved and/or
licensed as required by the locality. (In the Commonwealth
of Massachusetts installation must be performed by a
licensed plumber or gas fitter).
D. Gas Service Access
Depending upon local code, a manual gas shutoff, in
a readily accessible area may be required and located
upstream from the appliance.
WARNING
Fire Risk.
Explosion Hazard.
High pressure will damage valve.
• Disconnect gas supply piping BEFORE
pressure testing gas line at test pressures
above 1/2 psig.
• Close the manual shutoff valve BEFORE
pressure testing gas line at test pressures
equal to or less than 1/2 psig.
IntelliFire ® Plus with ODS (IFP)
Check the gas pressure with the appliance burning and
the control set to HIGH.
The valve regulator controls the burner pressure which
should be checked at the pressure test point.
Turn captured screw counterclockwise two or three turns
and then place tubing to pressure gauge over test point.
Use test point "A" closest to gas inlet. After taking pres-
sure reading, be sure and turn captured screw clockwise
firmly to reseal. Do not over torque. Check for gas leaks.
See Figure 4.2.
Figure 4.2 Pressure Test Point Location
Test Port 'A'