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Page 8
Notes:
1. An Underwriters' Laboratories or equivalent Nationally Recognized Testing Laboratory listed vent cap is required to
prevent downdraft and allow the heater to function properly and safely.
2. Use approved roof jack.
Figure 4. Indoor Installation Venting (USA), or Outdoor Shelter (Canada).
Table 3. Air Openings to Outside.
Required Net Free Open Area*
for Combustion Air Openings
Direct from outside
Model
in
2
(cm
125
32
(206)
175
44
(284)
250
63
(406)
325
82
(429)
400
100
(645)
*Area indicated is for one of two openings; one at floor level
and one at the ceiling, so the total net free area would be
double the figures indicated. For special conditions, refer to
NFPA54/ANSI Z223.1. In Canada refer to the National
Standard CAN/CSA-B149.1 which differs from this table.
Note: If using screens and/or metal louvers, compensate by adding
50% additional area to each opening
If using wood louvers each opening must be at least four times
the area indicated in the table above.
2.3.5. Indoor and Outdoor Shelter
Installations
An outdoor shelter (Canada only) is an unoccu-
pied enclosure which does not communicate directly
with occupied areas. All indoor installations and
outdoor shelter installations require the addition of a
factory approved drafthood. The drafthood must be
installed without modification and in accordance with
all local, state, provincial and national codes.
Une remise extérieure (au Canada seulement)
est un endroit inoccupé qui ne communique pas
directement avec les endroits occupés. Toutes les
installations intérieures et remises extérieures exigent
l'addition d'une coupe-tirage intérieur approuvée par
le manufacturier. La coupe-tirage intérieur doit être
installée sans aucune modification et selon les
exigences fournies par le manufacturier.
Duct from outside
2
)
in
2
(cm
2
)
64
(413)
88
(568)
126
(813)
164
(1058)
200
(1290)
These codes, standards and Jandy Pool Products,
Inc. require that the heater be properly vented as
outlined in this manual. Proper ventilation of exhaust
and combustion air are essential for the safe and
efficient operation of the heater (See Section 3). An
approved draft hood may be purchased from your local
Jandy distributor. See Section 11 (Parts List) of this
manual for the correct part number for you model and
size heater.
SECTION 3.
Venting
3.1. Combustion Air Supply
The heater location must provide sufficient air
supply for proper combustion and ventilation of the
surrounding area as outlined in the latest edition of
ANSI standard Z223.1 or in Canada, CAN/CSA-
B149.1, and any local codes that may be applicable.
In general, these requirements specify that the
room in which a heater is installed should be provided
with two permanent air supply openings; one within
12 inches (305mm) of the ceiling, the other within 12
inches (305mm) of the floor. All indoor installations
must have openings to outside air for combustion,
ventilation, and dilution of flue gases from inside the
building (see Figure 4 and Table 3). Jandy Pool
Products, Inc. does not recommend indoor installations
that do not provide combustion air from outside the
building.
All outdoor shelter installations (Canada only)
must have uninterrupted openings to outside air for
combustion and ventilation. The installation must be in
accordance with the latest edition of CAN/CSA-
B149.1. Jandy Pool Products, Inc. does not recom-
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