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Jandy
®
JXi
™
Gas-Fired Pool and Spa Heater | Installation & Operation Manual
It is recommended that all venting be engineered by a licensed mechanical contractor
Codes*
US
National Fuel Gas code ANSI
®
Z223.1 (NFPA
®
54)
CA
CAN/CSA-B149.1
Category
Static Press.
Stack Temp.
Condensate
Termination
Location
Pipe Sizing
Model Pipe Size
Special Gas Vent Length
†
(Vertical or horizontal)
I Negative High Minimal Roof
200 6 in (15 cm) N/A
260 7 in (18 cm) N/A
400 8 in (20 cm) N/A
III Positive High Minimal
Roof or
Side Wall
200
4 in (10 cm)
or larger
65 ft (20 m)
260
4 in (10 cm)
or larger
65 ft (20 m)
400
4 in (10 cm)
or larger
65 ft (20 m)
III Positive High Minimal Outdoor‡
200
4 in (10 cm)
or larger
25 ft (7.5 m)
260
4 in (10 cm)
or larger
25 ft (7.5 m)
400
4 in (10 cm)
or larger
25 ft (7.5 m)
*Ensure that you are referencing the latest edition and pay special attention to the chapter addressing “Venting of
Equipment”.
†
For each elbow installed, reduce the run length by 12 feet (3.7m)
‡
Applies to outdoor installed heater with concerns over extreme weather conditions.
Table 1. Vent Pipe Sizing Requirements
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