Connect Gas Supply - Valor Madrona MF28JN Installation & Owner's Manual

QUALIFIED
INSTALLER

Connect Gas Supply

The gas supply inlet connection is
a 3/8 inch NPT female connector.
If a circulating fan or isolating
valve is to be installed, adjust the
routing of the gas line to suit.
Use only new black iron or
steel pipes or copper tubing if
acceptable—check local codes. Note that in USA,
copper tubing must be internally tinned for protection
against sulfur compounds.
Unions in gas lines should be of ground joint type.
The gas supply line must be sized and installed to
provide a supply of gas suffi cient to meet the maximum
demand of the appliance without undue loss of
pressure.
Sealant used must be resistant to the action of all
gas constituents including LP gas. Sealant should be
applied lightly to male threads to ensure excess sealant
does not enter gas lines.
The supply line should include a manual shut-
off valve and union to allow the appliance to be
disconnected for servicing.
Pressure test the supply line for leaks.
• The appliance and its individual shut-off valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at test pressures in excess of 1/2
psig (3.5 kPa).
• The appliance must be isolated from the gas
supply piping system by closing its individual
manual shut-off valve during any pressure testing
of the gas supply piping system at test pressures
equal to or less than 1/2 psig (3.5 kPa).
• Failure to either disconnect or isolate the appliance
during pressure testing may result in regulator or
valve damages and void the warranty. Consult your
dealer in case of damages.
32
Installation
The minimum supply pressure is given in the
Specifi cations section of this manual—page 19.
All piping and connections must be tested for leaks
after installation or servicing. All leaks must be
corrected immediately.
When testing for leaks:
• Make sure that the appliance is turned off .
• Open the manual shut-off valve.
• Test for leaks by applying a liquid detergent or soap
Gas valve
solution to all joints. Bubbles forming indicate a gas
leak.
Never use an open fl ame to check for leaks.
Correct any leak detected immediately.
The pressure test tapping locations are shown in the
fi gure below. A built-in non-adjustable regulator controls
the burner manifold pressure. The correct pressure
range is shown in the table in Specifi cations section of
this manual on page 19. The pressure check should be
made with the burner alight and at its highest setting.
See Lighting Instructions section on page 13 for full
operating details.
Control
Valve
Manifold Pressure
Adjustment behind
Plastic Cap