15
138727_Rev_F 8/9/11
Gas Pressure
Proper gas pressure provides a consistent flow of
gas to the appliance and is instrumental in checking
for gas leaks. The gas control valve on the fireplace is
equipped with pressure test points
for gauge connections. The gauge
connections are located on the
front of the valve next to the
On/Off/Pilot knob. Gauge con-
nections are identified by:
• IN / E for inlet or supply
pressure (the amount of gas com-
ing to the valve.)
• OUT / A for manifold pres-
sure (the amount of gas that is
coming out of the valve to the
burner.)
Soap Solution Leak Test
• Mix a 50-50 solution of water and dish soap.
• Light appliance- see lighting instructions on page
23 of this manual or on the fireplace’s rating plate.
• Brush or spray all joints and connections with the
soapy water solution.
• If bubbles appear at any connection or seam or a
gas odor is detected, immediately turn gas control
knob to the OFF position.
Tighten or reconnect the leaking joint and retest
for any gas leaks.
Figure 11. Gas supply line fittings.
The appliance must be isolated from the gas sup-
ply line by closing its individual manual gas shut-off
valve (gas cock) during any pressure testing of the gas
supply piping system that is equal to or exceeds pres-
sures of 1/2 psig (3.5 kPa).
Inlet Pressure
MIN
MAX
Natural Gas: 5.0 WC (1.24 kPa)
7.0 WC
(1.74 kPa)
Propane: 12.0 WC (2.98 kPa) 16.0 WC (3.98
kPa)
Manifold Pressure
MIN
MAX
Natural Gas: 1.2 WC (0.29 kPa)
3.8 WC
(.95 kPa)
Propane: 2.9 WC (0.72 kPa) 11.0 WC (2.74 kPa)
ALWAYS TEST PRESSURE WITH VALVE CONTROL KNOB
SET ON HIGH.
Symptoms of incorrect gas pressure
include:
Insufficient gas pressure:
• Small pilot flame which can result in insufficient
millivolts.
• Little variation in flame picture between HI and LO
settings.
• Insufficient gas to support more than one appli-
ance causing nuisance outages or gas surges.
Excessive gas pressure:
• Permanent damage to valve causing complete ap-
pliance shut down.
• Too large a pilot flame resulting in overheating of
the power generator and consequent shut down.
• Sooting due to impingement and/or incorrect fuel
to air mix.
High Altitude Adjustment
Installations located at altitudes from 2000 - 4250 ft.
(610 M - 1370 M) require adjustment for differences
in pressure. Use Jøtul High Altitude Adjustment Kit
156451 for propane or 156452 for natural gas adjust-
ment.
Figure 12. Pressure test points located on the front of
the valve.
E
A
