Gas Supply - Valor HORIZON 534JN Installation Manual

Installation
Connect Gas Supply
The gas supply pipe should en-
ter the appliance case through
the opening at the left side. The
supply pipe should be con-
nected to the appliance gas inlet
pipe located at the left
side of the control valve.
Supply line connection to
the inlet pipe is 3/8" NPT female.
If the circulating fan is to be installed, be aware that the
supply pipe run inside the case should be at the same
height as the appliance inlet pipe in order to clear the fan.
If intending to fi t an internal isolating valve, check that it
will be clear of the fan.
Use only new black iron or steel pipes, CSST, or copper
tubing if acceptable—check local codes. Note that in
USA, copper tubing must be internally tinned for
protection against sulfur compounds.
Union 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 propane 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
to allow the appliance to be disconnected for servicing.
A plugges 1/8" NPT tapping must be installed in the
line. The tapping must be accessible for ttest gauge
connection and be immediately upstream of the gas
supply connection to the appliance.
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 (3.5kPa).
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 (3.5kPa).
Failure to either disconnect or isolate the appliance
during pressure testing may result in regulator or valve
damage. Consult your dealer in this case.
X
X
The minimum supply pressure is given on page 6 of
this manual.
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
solution to all joints. Bubbles forming indicate a gas
leak.
WARNING
NEVER USE OPEN FLAME to check for leaks.
Correct any leak detected immediately.
The pressure test tapping locations are shown below.
A built-in non-adjustable regulator controls the burner
manifold pressure. The correct pressure range is shown
page 6 of this manual. The pressure check should
be made with the burner alight and at its highest
setting. See Appendix A – Lighting Instructions Plate page
45 for full operating details.
Manifold
Supply
pressure
pressure
test tapping
test tapping
Pressure test tappings
Control
Valve
Manifold Pressure Adjustment
behind Plastic Cap

Gas Supply

27