Mendota E-FV44I ECHO SERIES Operations Instructions download pdf (Page 49)

LP GAS PRESSURE REQUIREMENTS

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 facia 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.

DESIRED

INLET

PRESSURE

MINIMUM

INLET

PRESSURE

MAXIMUM

INLET

PRESSURE

MANIFOLD

OUTLET

PRESSURE

AIR SHUTTER

POSITION

L.P. GAS

11.0" W.C.

(2.75 kPa)

11" W.C.

(2.75 kPa)

13.0" W.C.

(3.24 kPa)

10.0" W.C.

(2.5 kPa)

1/4" OPEN MIN.

(5 mm)

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

31,000 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 is recom-

mended 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 in-

crease 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.

Figure 1: Pressure Test Port

1" MIN.

FRONT

BURNER

REAR

BURNER

PILOT LIGHT FLAMES

MUST OVERLAP

BURNER PORTS.

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Mendota E-FV44I ECHO SERIES Operations Instructions Page 49

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