Page 17
ENGLISH
Jandy
®
, JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
Section 5. 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 FOR THE PROPER
INSTRUCTIONS AND CONVERSION KIT.
All questions should be directed to the Zodiac customer service
center at 1-800-822-7933
5.1 Supply Gas Requirements
NOTE:
• Check supply pressure and local code requirements
before proceeding with installation.
• Consider pipe fittings 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 if desired.
• 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 modified to meet pressure requirements.
Maximum Equivalent Pipe Length (Sch 40 Metallic Pipe)
Natural Gas 1000BTU/FT
3
— 0.60 Specific Gravity @ 0.5 in. W.C.
Pressure Drop
Propane Gas 2500BTU/FT
3
— 1.53 Specific 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
• 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 conrm.
• 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 9.
• Do not use a restrictive gas valve.
ATTENTION
Donotuseexibleapplianceconnectorsonanygasconnections
unless the connector is CSA approved for outdoor installation, and is
marked with the BTUH capacity (which must be equal to or greater
than the heater rated input) and the type of gas (Natural or LP). Also,
anyexibleconnectors,suchasCSSTburiedundergroundmustbe
certiedforundergroundinstallationandmeetallapplicablecodes.
Pleasenote,useofexibleconnectorstillrequirestheinstallationof
a sediment trap per NFPA 54. See Figure 9.
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.
PIPE
NIPPLE
SEDIMENT TRAP
3 in
(
(
Figure 9. Manual Shut-off Valve and Sediment Trap
To Next Page
Loading...
Need help?
General
