Page 21
Jandy
®
JXi
™
Gas-Fired Pool and Spa Heater | Installation & Operation Manual
Section 4. Gas Connections
Gas piping installation must be in accordance with
the latest edition of ANSI Z223.1 and all local codes.
In Canada, the installation must be in accordance
with CAN/CSA B149.1 and all local codes that apply.
The heater must be isolated from the gas supply
piping system by closing the individual manual shut
off valve during any pressure testing of the gas
supply piping system at test pressure greater than or
equal to 1/2 psi (3.5kPa).
CAUTION
Permanent damage to the gas valve will occur if the installation
procedures are not followed correctly.
WARNING
The JXi pool and spa heaters are designed for use with either natural
gas or LP gas. Check the rating plate on the front of the combustion
chamber to be sure that the heater is designed to use the type of
gas being supplied. CONVERTING THIS HEATER FOR USE WITH ANY
OTHER FUEL TYPE IS NOT RECOMMENDED BUT, WHEN NECESSARY,
SHOULD ONLY BE PERFORMED BY A LICENSED AND QUALIFIED
PROFESSIONAL, AND ONLY AFTER CONTACTING ZODIAC POOL
SYSTEMS LLC FOR THE PROPER INSTRUCTIONS AND CONVERSION
KIT.
All questions should be directed to the Zodiac customer service center
at 1-800-822-7933
4.1 Supply Gas Requirements
NOTE:
• Check supply pressure and local code requirements
before proceeding with installation.
• Consider pipe fi ttings when determining gas pipe
sizing. For every elbow used add three (3) feet to
straight pipe length.
• Table shows the minimum supply gas pipe size
required. Larger pipe size can be used if required by
local code or ifdesired.
• It is critical that the incoming gas supply pressure
at the heater is within the maximum and minimum
pressure requirements. If the range of acceptable
supply pressure is not provided, the gas supply
system to the heater must be modifi ed to meet
pressure requirements.
Maximum Equivalent Pipe Length (Sch 40 Metallic Pipe)
Natural Gas 1000BTU/FT
3
— 0.60 Specifi c Gravity @ 0.5 in.
W.C. Pressure Drop
Propane Gas 2500BTU/FT
3
— 1.53 Specifi c Gravity @ 0.5 in.
W.C. Pressure Drop
3/4" 1" 1-1/4" 1-1/2"
Model NG LP NG LP NG LP NG LP
JXi200 25 ft 60 ft 90 ft 215 ft 360 ft
JXi260 15 ft 35 ft 50 ft 125 ft 210 ft 480 ft 445 ft
JXi400 * 15 ft 20 ft 55 ft 95 ft 225 ft 215 ft 480 ft
* A 3/4” gas line can be used for up to 5 feet maximum length from the gas valve in addition to the
sediment trap.
Table 2. Natural Gas Pipe Size Requirements
PIPE
NIPPLE
SEDIMENT
TRAP
MANUAL SHUT-OFF
VALVE
GAS SUPPLY
INLET
T-FITTING
MINIMUM
3 in
(76 mm)
REMOVABLE
CAP
GAS PIPE
UNION
TO HEATER
INLET
Figure 8. Manual Shut-off Valve and Sediment Trap
• Refer to Table 2 for correct gas inlet piping length
from the gas meter to the heater.
• Check the gas meter to make sure it will
supply enough gas to the heater and any other
appliances using the same gas supply. If unsure,
contact your local gas utility to confi rm.
• Install a manual gas shutoff valve outside the
heater body for service and safety. Never install
the shutoff valve inside the body of the heater.
• Install a sediment trap and union ahead of the gas
controls and outside the heater body. See Figure
8.
• Do not use a restrictive gas valve.
NOTE: The gas line from the meter is usually larger
than the gas valve. Therefore, you will need to
reduce connecting pipe as necessary. Make this
reduction as close to the heater as possible.
To Next Page
Loading...
Need help?
General
