S&P TR130 Manual De Uso página 2

Location of the Unit
Select a location so that:
• The fresh air intake vent from the outside is placed a
minimum of ten feet from any other exhaust vent, and is at
least 30" long.
• The two ducts to the outside are as short and straight as
possible for the best performance from the system. Shorter
duct runs help assure the system is balanced: the amount
of air brought in is equal to the amount of air exhausted.
• The power cord reaches an electrical outlet.
• The door can be opened to allow cleaning the core and
filters. Provide at least 24" clearance at front of unit
for service access to the blowers, filters and energy
exchange core.
• The exhaust outlet and fresh air inlet on the outside of the
building should be at least ten feet apart to avoid cross-
contamination. The exhaust duct should be about the same
length as the fresh air duct.
• The exhaust outlet should not dump air into an enclosed
space or into any other structure.
• Do not install the exhaust outlet and fresh air inlet through
the roof or roof soffit. If these are the only available
options call S&P technical support for help.
The preferred mounting location for the unit is on a concrete
foundation wall because the foundation wall isolates any blower
vibration.
If a basement area is not available or practical, use other
mechanical room space such as a closet, garage, storage, or
accessible attic or crawl space.
NOTE: If you wish to install the unit in an attic or other
unconditioned space, you must insulate all of the unit's ductwork
that is located in the attic. Use at least R-6 insulation.
RA: Room Air
OA: Outside Air
FA: Fresh Air
(A)
Separate Room Air Pick-up -
Fresh Air to Furnace Return Air Trunkline
(C)
Furnace Return Air Back into Return Air
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TR130_200_300
132100_003
EA: Exhaust Air
SA: Supply Air (furnace)
Due to continuing product development, specifications are subject to change without notice.
Inside Ductwork System
For houses without ducted heating or cooling systems – see
Schematic (B):
In most houses one or two fresh air grilles in a central part of
the house provide effective distribution of the fresh air into the
home, particularly when the stale exhaust air is picked up at
several points. Because the fresh air is usually somewhat cooler
than the household air, the fresh air supply grilles should be
located in a traffic area like a hallway or stairway rather than in
a sitting area. If you want to get fresh air into specific rooms with
high occupancy, you can split up the fresh air supply.
For houses with forced-air heating and cooling systems – see
Schematics (A), (C) and (D):
Most units are installed with the fresh air duct connected directly
to a return duct for the main heating and cooling system. Be
careful to connect the fresh air duct at least three feet from the
return plenum to minimize suction from the furnace blower. A
connection closer to the furnace may result in unbalanced flow
and associated problems.
For installations that collect stale air from specific rooms in
the home – for example, Schematics (A) and (B):
Locate stale air return grilles (RA) in rooms where moisture and
odors are generated: bathrooms, the kitchen, and perhaps other
areas where contaminants are generated such as in the home
workshop. Return grilles in these other areas may be dampered
so that they can be shut off when not in use. A central location
such as a hallway is also acceptable but won't clear humidity and
odors from baths and kitchens as rapidly. Locate stale air return
grilles (RA) near the ceiling on inside walls. Stale air returns are
usually easiest to install in interior partitions. Put them in the
ceiling if that is easier.
Stale Air Return Grille Sizes
Bathroom 4" X 10" or 6" X 10" - 40 to 60 sq. in.
Kitchen 6" X 10" or 60 sq. in.
(B)
Separate Return Air and Fresh Air Supply
(D)
Furnace Return Air Back into Supply Air
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Revised 9/2018
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© 2018 S&P
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