Gas Supply Installation; Aeration Setting Check - Valor 534XAN Installation & Operating Instructions Manual

• The gas supply pipe should enter the appliance case through the opening at the rear left side. The supply pipe should
be connected to the appliance gas inlet pipe situated 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 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 to allow the appliance to be disconnected for servicing.
• A plugged 1/8" NPT tapping must be installed in the line. The tapping must be accessible for test gauge connection
and be immediately upstream of the gas supply connection to the appliance.
• Pressure test the supply line for leaks.
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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).
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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).
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Failure to either disconnect or isolate the appliance during pressure testing may result in regulator or valve
damage. Consult your dealer in this case.
• The minimum supply pressure is given in the Specifi cations section
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:
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Make sure that the appliance is turned off.
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Open the manual shut-off valve.
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Test for leaks by applying a liquid detergent or soap solution to
all joints. Bubbles forming indicate a gas leak. Never use an
open fl ame to check for leaks.
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Correct any leak detected immediately.
• The pressure test tapping locations are shown in fi gure 39. 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. The pressure check should be made with the burner
alight and at its highest setting. See Lighting Instructions section for
full operating details.
The air shutter is factory set at an aeration gap that will give optimum performance
for the vast majority of installations. However, in a few unusual installations,
performance may be improved by adjusting the aeration. The need for adjustment
should be determined by operating the appliance with the ceramic fuel effects
and window installed. See the Final Checks section in this manual for adjustment
details.
Adjust the aeration by slackening the aeration plate screw and sliding the plate. In
an extreme circumstance, the plate can be totally removed. See fi gure 40.
30 30

Gas Supply Installation

Aeration Setting Check

Figure 39 Pressure test tappings
Figure 40 Aeration setting