Ortech OD-ERV 150AC Instruction Manual page 6

Energy Recovery Ventilators
MODEL OD-ERV 150AC
OPERATION
Unit Installation
Installation B
b3) Hang the one side of the unit on the screws mounted on the
a1) truss. Lift the other side of the unit and secure it to the other
a1) truss. Mount the unit to the truss using 2 screws per bracket.
b4) After installation, the bottom of the unit is in contact with the
a2) bottom of the ceiling.
1-1/16"
(27mm)
1/2"
(12.7mm)
DUCTWORK
For Houses WITHOUT Ducted Heating or Cooling Systems (see Fig.2)
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 indoor 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
room with high occupancy, you can split up the fresh air supply.
For Houses WITH Forced-air Heating and Cooling Systems (see Fig.1, Fig.3, and Fig4)
Most units are installed with the fresh air duct connected directly to a return duct for the main heating and cooling system.
Make sure to connect the fresh air duct at least 3 feet from the return plenum to minimize suction from the furnace blower. A connection closer
to the furnace may result in unbalanced flow or other associated problems.
For Installations that Collect Stale Air from Specific Rooms in the Home (see Fig.1 and Fig.2)
Locate stale air return grilles (RA) in rooms where moisture and odors are generated: bathrooms, kitchens, and perhaps areas where
contaminants may be generated such as the home workshop. Return grilles in these areas such as the home workshop 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 it would not clear humidity and odors from
baths and kitchens quickly. Locate stale air return grilles (RA) near the ceiling on inside walls. Stale air returns are usually easiest to install in
interior partitions.
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13376 Comber Way 375 Admiral Blvd
Mississauga
Surrey BC V3W 5V9
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Instruction Manual
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