Lp Gas Pressure Requirements; Lpg Proper Input Rates; Leak Testing Requirements; Pilot Flame And Main Burner Relationship Verification - Mendota DXV35 DT4-LX Installation & Operating Instructions Manual

Gas direct vent fireplace with premium texture fiber logs combustion system
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Inlet and manifold gas pressure checking taps are located on gas valve. These ports are only accessible from the outer left
side of the fireplace. A qualified installer shall take pressure measurements at these ports to verify and set the correct gas
pressures during the LP Kit installation and before fascia materials are installed over the front of this fireplace. Manifold
pressure must be taken at the "MANIFOLD PRESSURE" tap and inlet pressure at the "INLET PRESSURE" tap with the
burner operating by a qualified installer.
L.P. GAS
REGULATE THE FLAME HEIGHT TO "HIGH" POSITION. OUTLET GAS PRESSURES MAY VARY PLUS OR MINUS 5%.

LPG PROPER INPUT RATES

With the proper orifices installed, as specified above,
this fireplace utilizing LP Gas will have a maximum
input rate of 33,000 Btu/Hr.

LEAK TESTING REQUIREMENTS

Prior to completing the conversion process, check for
gas leaks with soap and water solution at all plumbing
joints prior to placing this appliance into operation. It
f i r e - p a r t s . c o m
is recommended that all gas-plumbing joints, factory
installed and field installed are checked for leaks.

PILOT FLAME AND MAIN BURNER RELATIONSHIP VERIFICATION

Prior to completing the conversion process, the qualified service technician must, light
the pilot light and verify the relationship between the pilot light flames and the main burners. The pilot light flames directed
towards the propagation ports on the rear and front burner must overlap the propagation ports on the burners. The pilot
light flames must be a minimum of ¾" long and must overlap the propagation ports on both the rear and front burners as
shown in the diagram, below. Verify that the burner tubes ignite quickly and the burner flames propagate smoothly along
the entire length of the burners.

PILOT FLAME LENGTH ADJUSTMENT

If the pilot light flame length is too short and the system
does not maintain a standing pilot, a qualified installer
may increase the length of the pilot light flames to meet
the two requirements: Minimum pilot light length to
maintain a standing pilot light and the pilot light flames
must be long enough to overlap the front and rear
burner ports, 1 inch long minimum.

LP GAS PRESSURE REQUIREMENTS

DESIRED
MINIMUM
INLET
INLET
PRESSURE
PRESSURE
11.0" W.C.
11" W.C.
(2.75 kPa)
(2.75 kPa)
MAXIMUM
MANIFOLD
INLET
OUTLET
PRESSURE
PRESSURE
13.0" W.C.
10.0" W.C.
(3.24 kPa)
(2.5 kPa)
INLET TAP
REAR
1" MIN.
BURNER
52
AIR SHUTTER
POSITION
1/4" OPEN MIN.
(5 mm)
OUTLET TAP
Figure 8: Pressure Test Port
PILOT LIGHT FLAMES
MUST OVERLAP
BURNER PORTS.
FRONT
BURNER

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