Jandy JXi 200 Installation And Operation Manual - Warning
Page 12
ENGLISH
Jandy
®
Pro Series, JXi
™
Gas-Fired Pool & Spa Heater
|
Installation & Operation Manual
3.3.2
Exhaust Venting
When the JXi heater is installed indoors or in an outdoor
shelter it can be vented as a Category I or Category III
appliance. In either case the vent pipe sizing must be in
accordance with the specifications listed in
Table 1.
• Category I:
Appliance operates with a negative vent
static pressure, a vent gas temperature that avoids
excessive condensate production and will vent
vertically terminating at the roof.
• Category III:
Appliance operates with a positive
vent static pressure, a vent gas temperature that
avoids excessive condensate production and can be
vented horizontally terminating at a side wall.
• Do not terminate heater vents near air conditioning
or air supply fans which could pick up exhaust
flue products, such as carbon monoxide and other
hazardous effluent, and return them inside the building.
•
Vent pipe type and material must be carefully
selected and depends on the type of installation.
• Do not
locate the vent terminal where exhaust flue
products could strike against building materials and
cause degradation.
•
Vent opening should be well away from landscaping
or other obstructions that would prevent free air flow
to and from vent terminal.
• Do not terminate vent under decks, stairs, or car ports.
• Do not use the appliance to support the vent pipe.
•
Vent piping must be supported with no low spots or
sagging which could allow condensate to collect.
•
Horizontal runs must be sloped upwards away from
the heater to a vent terminal at a minimum of 1/4" per
horizontal foot (2 cm/m). See
Figure 4.
•
Install the vent pipe so it can expand and contract
freely with temperature changes.
• Do not run the heater vent into a common vent with
any other appliance.
•
It is recommended that vent runs over 18 feet
be insulated to reduce condensation and use a
condensate trap in the vent run close to the heater,
especially in cold climate installations.
WARNING
Vent pipe materials, sizing, and installation must be as required
by the National Fuel Gas Code NFPA 54/ANSI® Z223.1 or the
Canadian Installation Codes for Gas Appliances CAN/CSA-B149.1.
Undersized pipe can result in inadequate venting and oversize pipe
can result in vent condensation. Improper selection of vent pipe
material, incorrect sizing of the pipe, and incorrect installation of vent
piping can result in release of combustion products to the indoors.
This can cause serious injury or death by Carbon Monoxide poison-
ing or asphyxiation.
WARNING
Improper installation or maintenance can cause nausea or asphyxia-
tionfromcarbonmonoxideinfluegaseswhichcouldresultinsevere
injury or death. For indoor installations, as an added measure of
safety, Zodiac Pool Systems, Inc. strongly recommends installation
of suitable carbon monoxide detectors in the vicinity of this appliance
and in any adjacent occupied spaces.
Incorrect design and installation of heater vents and ducts can result
in personal injury, damage to property, or death. To avoid such
hazards,theheatermustbeinstalledonlybyaqualifiedprofessional
service technician.
CODES*
National Fuel Gas code ANSI
®
Z223.1 (NFPA
®
54)
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)
50 ft (15 m)
260
4 in (10 cm)
70 ft (21 m)
400
4 in (10 cm)
70 ft (21 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)
Table 1.
Vent Pipe sizing Requirements