Jøtul GI 635 DV IPI Installation And Operation Instructions Manual page 15

REQUIRED INLET GAS PRESSURES (inches water column)
NATURAL GAS
PROPANE
REQUIRED MANIFOLD PRESSURES
(inches water column)
NATURAL GAS
PROPANE
ALWAYS TEST PRESSURE WITH THE VALVE REGULATOR
ADJUSTED TO THE HIGHEST SETTING.
Figure 11.
Insert the Latch Tool into the receiver hole
in the gas cock.
Gas Cock
Gas cock 1
Figure 11a. Pull the tool forward toward you to
open the gas cock. Push it back to close the gas
cock.
OFF
MIN MAX
4.0 WC 7.0 WC
12.0 WC 14.0 WC
MIN MAX
1.1 WC 3.8 WC
2.9 WC 11.0 WC
ON
139712_R00 GI 635 IPI Sept. 2015
Figure 12.
Pressure test points.
Inlet
Pilot
Adjustment
Symptoms of incorrect gas pressure include:
Insufficient gas pressure:
• Small pilot flame which can result in poor pilot
rectification and/or frequent burner outages.
• Little variation in flame picture between HI and
LO regulator settings.
• Insufficient gas to support more than one
appliance causing nuisance outages or gas
surges.
Excessive gas pressure:
• Permanent damage to valve causing complete
appliance shut down.
• Too large a pilot flame resulting in overheating
of the flame sensor and consequent shut down.
• Sooting due to impingement and/or incorrect
fuel to air mix.
WARNING
DO NOT ALLOW THE INLET GAS PRESSURE TO
EXCEED 14.0" WC (OR 1/2 PSIG) AS SERIOUS
DAMAGE TO THE VALVE MAY RESULT.
Manifold
15