Jandy JXi 200 Installation And Operation Manual page 24

Page 24
ENGLISH
Header Type "A"
Heater Revision "K" and Earlier
b
c
Drill Using
a 1/4 in Bit
TIP: Drilling a 1/8 in diameter hole first will help prevent thread damage.
Figure 15. Identifying Header Design
• Turn off the electrical power to the heater.
• Turn off the main gas supply to the heater.
• If the heater has been operating, ensure you allow
enough time for remaining water in the heat
exchanger to cool down before beginning. It is
recommended that protective gloves be worn during
the entire procedure.
• Make sure the filter pump is off and will remain off
for the duration of the installation procedure.
• If the heater is below the surface level of the water in
the pool or spa, close all shut-off valves between the
heater and the pool.
CAUTION
Use PTFE (Teflon) tape only on the threads of the pipe nipple attach-
ment to the plastic header. Do not use pipe compound or pipe dope
on threads or any part that comes into contact with the plastic header.
These compounds may damage the header over a period of time.
f
e
d
2
3
5
6
Jandy
Header Type "B"
Heater Revision "L" and Later
b
c
Drill Using
a 3/8 in Bit
1
Header Type "A"
, JXi Gas-Fired Pool & Spa Heater
® ™
a
Remove drain plug from header and allow all water to
drain from heat exchanger.
b
Locate the threaded boss on the outlet port of the header,
and find the dimple at the center.
c
Use the dimple to center the drill bit.
For header type A: Drill a 1/4 in (6.4 mm) diameter hole
through the boss.
For header type B: Drill a 3/8 in (9.5 mm) diameter hole
through the boss.
Take care not to damage the plastic threads.
TIP: Drilling a 1/8 in (3 mm) diameter hole first will help
prevent thread damage.
d
Each male connection should be first wrapped in 5-6 turns
of PTFE (Teflon) tape.
e
For header type A: Assemble the 3/8 in threaded nipple,
reducing bushing, elbow and pressure relief valve. Make sure
to get a sung fit. Do not overtighten.
For header type B: Assemble the 3/4 in threaded nipple, elbow
and pressure relief valve. Make sure to get a sung fit. Do not
overtighten.
f
Install the pressure relief valve assembly at the heater
header. Make sure to get a sung fit. Do not overtighten.
g
The final orientation of the pressure relief valve should be
vertically aligned with the discharge opening facing away from
the heater header.
f
4
d
5
6
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Installation & Operation Manual
a
e
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Header Type "B"