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Jandy
®
Pro Series, JXi
™
Pool & Spa Heater
STEP 6: Test the Inlet Pressure
NOTE:
Test the gas inlet pressure with the heater running using a
digital differential pressure manometer.
1. Shut off the gas supply.
2. Remove the 1/8
ʺ
NPT plug from the gas valve (Figure 16)
using a 3/16
ʺ
hex key.
View With Side Panel Hidden
1/8" NPT Plug
1/8" NPT Plug
1/8" NPT to 1/16”
Barbed Adapter
Connect Hose to
Positive (+) Manometer Port
Connect Hose to
Barbed Adapter
Figure 16. Remove NPT Plug and Insert Barbed Adapter
NOTE:
Take care not to drop the plug down into the heater body, or it
will be extremely diffi cult to retrieve.
3. Apply pipe joint compound over the fi tting threads of 7/16
ʺ
male
barbed adapter.
4. Thread the male barbed adapter into the gas inlet port
(see Figure 16) using a 7/16
ʺ
hollow shaft nut driver.