Laars MagnaTherm HTD Series, Installation And Operation Instructions Manual

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LAARS Heating Systems
Page 12
Installation Standards
Material United States Canada
Stainless steel UL 1738
Venting must be ULC S636 certified for use as venting
material. The venting material class must be chosen
based upon the intended application of the unit and
must be installed according to the maximum flue gas
temperature and the vent manufacturer’s instructions.
CPVC, sch 40 ANSI/ASTM F441
Polypropylene ULC S636 Class 2C
Table 5. Required Exhaust Vent Material
2.C Vent and Air Pipe Sizing
This unit is certified to vent as a Category II or Category
IV appliance. Because Category II vent is non-positive,
the vent size may not be the same as the positive
pressure Category IV vent, even when the unit is the
same size. Be sure to follow the instructions in this
manual, based on the type of venting in your installation.
The venting must be correct to allow the condensate to
run back to the unit to drain. Route the vent pipe to the
heater as directly as possible. Seal all joints. Provide
adequate hangers as required in the venting system
manufacturer’s Installation Instructions, or at least every
4 feet.
The unit must not support the weight of the vent pipe.
The maximum equivalent pipe length allowed is
100 feet (30m). Each elbow is considered to be 5 feet
(1.5m). The manufacturer offers accessory kits to use
with horizontal and vertical exhaust vent systems, as
shown in Table 6
Table 6. Exhaust Vent Accessories
(Place in section 3.1)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Screen for horizontal galvanized air pipe D2012104 D2012101 D2012101 D2012102 D2012103 D2012103
Screen for horizontal PVC air pipe CA012004 CA012001 CA012001 CA012002 CA012003 CA012003
Screen for horizontal polypropylene air pipe CA012204 CA012201 CA012201 CA012202 CA012203 CA012203
Screen for vertical galvanized air pipe D2012204 D2012201 D2012201 D2012202 D2012203 D2012203
Screen for vertical PVC air pipe CA012404 CA012401 CA012401 CA012402 CA012403 CA012403
Screen for vertical polypropylene air pipe CA012604 CA012601 CA012601 CA012602 CA012603 CA012603
Table 3a - Ducted Air Accessories
(Place in section 3.2)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Horizontal vent terminal for stainless steel D2012004 D2012001 D2012001 D2012002 D2012003 D2012003
Screen for horizontal CPVC vent CA012104 CA012101 CA012101 CA012102 CA012103 CA012103
Screen for vertical stainless steel vent D2012304 D2012301 D2012301 D2012302 D2012303 D2012303
Screen for vertical CPVC vent CA012504 CA012501 CA012501 CA012502 CA012503 CA012503
Table 3* - Vent Accessories
(Place in section 3.5)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Air intake screen for unit placed outdoors CA0011904 CA011901 CA011901 CA011902 CA0011903 CA0011903
Vent terminal for unit placed outdoors CA011804 CA011801 CA011801 CA011802 CA011803 CA011803
Table 3** - Air & Vent Accessories for Units Placed Outdoors
NOTE: For Category II and IV boilers, the horizontal
runs must be sloping upwards not less than 1/4 inch per
foot (21 mm/m) from the boiler to the vent terminal, so
as to prevent accumulation of condensate and, where
necessary, have the means provided for drainage of
condensate.
ATTENTION: Pour la catégorie II & IV, les chaudières
ont horizontal en pente vers le haut au moins 1/4 de
pouce par pied (21 mm/m) à partir de la chaudière
pour l’évent borne; être installé de façon à éviter
l’accumulation de condensats; et, le cas échéant, ont
des moyens prévus pour l’évacuation des condensats.
Table 7. Required Combustion Air Pipe Material
Material United States Canada
ABS ANSI/ASTM D1527 The air pipe material must be chosen based upon the
intended application of the boiler or water heater and
must be installed according to the vent manufacturer’s
installation instructions.
PVC, sch. 40 ANSI/ASTM D1785 or D2665
CPVC, sch. 40 ANSI/ASTM F441
Single wall galv. steel 26 gauge
Polypropylene ULC S636 Class 2C
Table 8. Ducted Air Accessories
(Place in section 3.1)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Screen for horizontal galvanized air pipe D2012104 D2012101 D2012101 D2012102 D2012103 D2012103
Screen for horizontal PVC air pipe CA012004 CA012001 CA012001 CA012002 CA012003 CA012003
Screen for horizontal polypropylene air pipe CA012204 CA012201 CA012201 CA012202 CA012203 CA012203
Screen for vertical galvanized air pipe D2012204 D2012201 D2012201 D2012202 D2012203 D2012203
Screen for vertical PVC air pipe CA012404 CA012401 CA012401 CA012402 CA012403 CA012403
Screen for vertical polypropylene air pipe CA012604 CA012601 CA012601 CA012602 CA012603 CA012603
Table 3a - Ducted Air Accessories
(Place in section 3.2)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Horizontal vent terminal for stainless steel D2012004 D2012001 D2012001 D2012002 D2012003 D2012003
Screen for horizontal CPVC vent CA012104 CA012101 CA012101 CA012102 CA012103 CA012103
Screen for vertical stainless steel vent D2012304 D2012301 D2012301 D2012302 D2012303 D2012303
Screen for vertical CPVC vent CA012504 CA012501 CA012501 CA012502 CA012503 CA012503
Table 3* - Vent Accessories
(Place in section 3.5)
Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000
Air intake screen for unit placed outdoors CA0011904 CA011901 CA011901 CA011902 CA0011903 CA0011903
Vent terminal for unit placed outdoors CA011804 CA011801 CA011801 CA011802 CA011803 CA011803
Table 3** - Air & Vent Accessories for Units Placed Outdoors