HTP MODCON1000 Installation, Start-Up And Maintenance Instructions

LP-428 Rev. 6.6.16
11
1. Direct Vent of Exhaust and Intake
If installing a direct vent option, combustion air must be
drawn from the outdoors directly into the boiler intake and
exhaust must terminate outdoors. There are three basic direct
vent options detailed in this manual: 1. Side Wall Venting, 2.
Roof Venting, and 3. Unbalanced Venting.
Be sure to locate the boiler such that the exhaust vent and
intake piping can be routed through the building and properly
terminated. Dierent vent terminals can be used to simplify
and eliminate multiple penetrations in the building structure
(see Optional Equipment in Venting Section). The exhaust
vent and intake piping lengths, routing, and termination
methods must all comply with the methods and limits given
in the Venting Section, this manual.
When installing a combustion air intake from outdoors, care
must be taken to utilize uncontaminated combustion air. To
prevent combustion air contamination, see Table 1.
2. Indoor Combustion Air in Conned or Unconned Space
This boiler requires fresh, uncontaminated air for safe
operation and must be installed in a mechanical room where
there is adequate combustion and ventilating air. NOTE: To
prevent combustion air contamination, see Table 1.
Combustion air from the indoor space can be used if the space
has adequate area or when air is provided through a duct
or louver to supply sucient combustion air based on the
boiler input. Never obstruct the supply of combustion air to
the boiler. If the boiler is installed in areas where indoor air
is contaminated (see Table 1) it is imperative that the boiler
be installed as direct vent so that all combustion air is taken
directly from the outdoors into the boiler intake connection.
Unconned space is space with volume greater than 50
cubic feet per 1,000 BTU/hr (4.8 cubic meters per kW) of the
total input rating of all fuel-burning appliances installed in
that space. Rooms connected directly to this space through
openings not furnished with doors are considered part of the
space. See Venting Section for details.
Conned space is space with volume less than 50 cubic feet
per 1,000 BTU/hr (4.8 cubic meters per kW) of the total input
rating of all fuel-burning appliances installed in that space.
Rooms connected directly to this space through openings not
furnished with doors are considered part of the space.
When drawing combustion air from inside a conventionally
constructed building to a conned space, such space should
be provided with two permanent openings: one located 6”
(15 cm) below the space ceiling, the other 6” (15cm) above
the space oor. Each opening should have a free area of one
square inch per 1,000 BTU/hr (22cm
2
/kW) of the total input of
all appliances in the space, but not less than 100 square inches
(645cm
2
).
If the conned space is within a building of tight construction,
air for combustion must be obtained from the outdoors as
outlined in the Venting section of this manual.
When drawing combustion air from the outside into the
mechanical room, care must be taken to provide adequate
freeze protection.
Failure to provide an adequate supply of fresh combustion air can
cause poisonous ue gases to enter the living space, resulting
in severe personal injury or death. To prevent combustion air
contamination, see Table 1.
G. Prevent Combustion Air Contamination
Install intake air piping for the boiler as described in the Venting
Section, this manual. Do not terminate exhaust in locations that
can allow contamination of intake air.
Ensure that the intake air will not contain any of the contaminants
in Table 1. Contaminated air will damage the boiler, resulting in
possible substantial property damage, severe personal injury, or
death. For example, do not pipe intake air near a swimming pool
or laundry facilities. These areas always contain contaminants.
Products to Avoid
Areas Likely to Have
Contaminants
Spray cans containing
uorocarbons
Dry cleaning / laundry areas and
establishments
Permanent wave solutions Swimming pools
Chlorinated waxes / cleaners Metal fabrication plants
Chlorine-based swimming pool
chemicals
Beauty shops
Calcium chloride used for thawing Refrigeration repair shops
Sodium chloride used for water
softening
Photo processing plants
Refrigerant leaks Auto body shops
Paint or varnish removers Plastic manufacturing plants
Hydrochloric or Muriatic acid
Furniture renishing areas and
establishments
Cements and glues New building construction
Antistatic fabric softeners used in
clothes dryers
Remodeling areas
Chlorine-type bleaches, laundry
detergents, and cleaning solvents
Garages and workshops
Adhesives used to fasten building
products
Table 1 - Products and Areas Likely to Have Contaminants
NOTE: DAMAGE TO THE BOILER CAUSED BY EXPOSURE
TO CORROSIVE VAPORS IS NOT COVERED BY WARRANTY.
(Refer to the limited warranty for complete terms and
conditions.)
H. Removing a Boiler from a Common Vent System
Failure to follow all instructions can result in ue gas spillage
and carbon monoxide emissions, causing severe personal injury
or death.
Do not install the boiler into a common vent with any other
appliance. This will cause ue gas spillage or appliance
malfunction, resulting in possible substantial property damage,
severe personal injury, or death.

HTP MODCON1000 Specifications

General

Brand	HTP
Model	MODCON1000
Category	Boiler
Language	English