Zodiac JXi 200, Инструкция по установке и эксплуатации

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Page 15
ENGLISH Zodiac
®
JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
4.3 Gas Offset Pressure Test
Before operating the heater it is necessary to test the
offset gas pressure to ensure that it falls within the
required range of -.05 kPA (-0.2" WC) +/- .025 kPa
(0.1" WC). This reading must be taken with the heater
running using a digital differential manometer.
•
Verify the manual gas shutoff valve is open.
•
Remove the heater rear panel to expose the gas
valve.
NOTE: The rear panel is the main body panel closest to the gas
inlet. This may appear to be the front panel if the user interface was
moved to accommodate a left side water connection. For instruc-
tions on moving the user interface see
5.2.1 .
4.3.1 Connect the Digital Differential Manometer.
a
Connect a tee to the hose running from
the fan inlet port on the blower to the gas
valve air pressure connection.
b
Connect one leg of the tee to the gas
valve air pressure connection.
c
Connect the third leg of the tee to the
positive (high pressure) side of the digital
differential manometer.
d
Locate the outlet pressure tap.
e
Using a small flathead screwdriver
(ideally .100" width or smaller), turn the tap
plug 2-3 turns counter clockwise.
CAUTION
Do not back the tap screw entirely out of the inlet
pressure tap. The screw is small and easily lost. A
lost screw needs to be replaced before the heater
can operated.
a
f
Connect a hose from the outlet pressure
tap to the negative (low pressure) side of the
digital differential manometer.
• Start the heater and record the gas offset
pressure.
• Measurement should be
-.05 kPA (-0.2"
WC) +/- .025 kPa (0.1" WC).
• If the offset pressure is incorrect an
adjustment can be made. See Section 4.3.2
for details
•
If no adjustment is required, remove
manometer.
•
Reconnect the hose from the fan inlet port to the gas
valve air pressure connection.
• Tighten the tap plug securely. DO NOT
OVERTIGHTEN.
• Before operating the heater, test the gas supply
system and all connections for leaks using a soap
solution.
Do not use an open flame to test for leaks.
WARNING
Failure to secure or replace the pressure tap plugs will allow gas to
leak from the valve into the heater body which could result in prop-
erty damage, severe injury, or death.
ON
OFF
UNITS
ZERO
a
c
OUTLET PRESSURE TAP
FAN INLET PORT
f
NEGATIVE
(Low Pressure Port)
_
POSITIVE
(High Pressure Port)
+
DIGITAL
MANOMETER
“T” JOINER