Page 16
ENGLISH
Jandy
®
, JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
4.3.6 Indoor and Outdoor Shelter Exhaust Termination
Category I: Appliance must be vented vertically and
terminate at the roof. Vent must terminate at least 2 feet
(610 mm) above any objects within 10 feet (3.05 m).
Termination must pass through a properly installed and
approved roof jack, a properly sized storm collar and an
listed vent cap. See Figure 4.
Category III: Appliance can be vented vertically to
terminate at the roof or vented horizontally to terminate at
a side wall. Side wall vents must be installed and located
in accordance with the National Fuel Gas Code NFPA
®
54 / ANSI
®
Z223.1 or the Canadian Natural Gas and
Propane Installation Code CAN/CSA-B149.1. In addition
some local installation codes may have requirements that
exceed those of the national codes. The product must be
installed in accordance with the codes being enforced by
the local Authority Having Jurisdiction (AHJ).
Figure 8. Side Wall Vent Termination
Inlet
12 in (30 cm) min.
a
FORCED AIR INLET
3 ft (0.9 m) min.
If dim. “a”
is less than
10 ft (3.0 m)
4 ft
(1.2 m) min.
4 ft
(1.2 m) min.
VENT TERMINATION
(Suggested Z-Vent part# 2SVSRTF)
Refer to CSA B149 for requirements specific to Canadian installations.
Check local installation codes which may require greater minimum
distances from windows and doors to be maintained.
12 in (30 cm) min.
above snow or finished grade, whichever is higher
7 ft (2.13 m) min.
above grade
adjacent to
public walkways
4.3.7 Precautions Against Common Venting
Zodiac Pool Systems LLC does not recommend using
a common vent to vent multiple appliances through a
common duct. If no other option is deemed available
by the installer, seek the assistance of a Registered
Professional Engineer for proper design of a common
venting system.
A properly designed common venting system must
include vent temperature limit switches for each
appliance. All vent limit switches must be wired in series
so as to prevent any appliance from ring in the event of
a blocked vent. An outside draft inducer must be installed
to pull and create negative pressure in the vent system.
Refer to ANSI
®
Z223.1 or in Canada CAN/CSA B149.1
for more information on common venting multiple
appliances. Do not connect vent systems of different
categories to the same venting system.
4.3.8 Inspection and Replacement of Existing Vent System with New Components
When replacing an existing pool heater with the JXi, it
is recommended that a new appropriate venting system
is installed with the new heater. However, if the existing
venting system must be used, be sure to carefully inspect
the existing system to ensure that it is in good condition
and appropriate for the JXi heater. Replace any parts
that are not in serviceable condition before completing
the installation.
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