Inspection And Replacement Of Existing Vent System With New Components - Jandy LXi Installation And Operation Manual

must be sloped upwards away from the heater to a vent
terminal at a minimum of 1/4" per horizontal foot (2
cm/m). The LXi is designed for Category III venting
with a maximum of 25 ft (7.6 m) of vent pipe and up
to 3 elbows. For each additional elbow, reduce the
maximum vent pipe length by 10 ft (3 m). See Table 4
for the minimum vent diameter for the model size to
be installed.
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. See
Figure 8 Side Wall Vent Terminations.
IMPORTANT NOTE In the Commonwealth of
Massachusetts, additional requirements,
covered in document CMR 248 5.00, which
supersede some of the requirements of
ANSI Z223.1 (NFPA 54) apply to Side Wall
Horizontally Vented appliances. If installing
this product using an approved side-wall
horizontal vent system in the Commonwealth
of Massachusetts, be sure to adhere to these
additional requirements. These requirements
include verbiage that says that the property
owner is to ensure that Carbon Monoxide
Detectors are installed in the vicinity of
the appliance and also on all levels of the
dwelling in which the appliance is installed.
For further instructions, contact Jandy Pool
Products Technical Service Department at
(707) 776-8200 extension 260.
Figure 8. Side Wall Vent Terminals
LXi Pool/Spa Heater Installation and Operation Manual
™
NOTE For approved side wall vent kits and specifi c
installation instructions, see Section 11,
Replacement Parts.
When venting multiple appliances through one
common duct, each appliance must have its own vent
temperature limit switch. All vent limit switches must
be wired in series so as to prevent any appliance from
fi ring in the event of a blocked vent. Refer to ANSI
Z223.1 or, in Canada, to CAN/CSA B149.1 for more
information on multiple venting.
3.3.3 Inspection and Replacement of
Existing Vent System with New
Components
If the LXi is being installed to replace an existing
pool heater, it is recommended that a new appropriate
venting system be installed with the new heater. How-
ever, if an existing venting system must be used, be
sure to carefully inspect the venting system to ensure
that it is in good condition and continues to be appro-
priate for the LXi heater. Replace any parts that are
not in good and serviceable condition with new parts
before completing the pool heater installation.
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