4
5. Connect unit drain to building’s main drain. Provide slight
slope from unit for run--off.
A12456
Fig. 5 -- Condensate Drain With Loop Trap
Locate and Install Exterior Hoods
IMPORTANT
: To prevent condensation problems, insulated
flexible ducts are required on both fresh--air inlet and exhaust--air
outlet ducts connecting between HRV and exterior wall.
Fresh--air intake and stale--air exhaust must be separated by at least
6 ft (1.8 m). Fresh--air intake must be positioned at least 10 ft. (3
m) from nearest dryer vent, furnace exhaust, driveway, gas meter,
or oil fill pipe. Fresh--air intake must be positioned as far as
possible from garbage containers and potential chemical fumes.
When possible, it is advised to locate the intake and exhaust hoods
on same side of house or building. The intake and exhaust hoods
should never be located on interior corners or in dead air pockets
(see Fig. 4). Both intake and exhaust hoods must be 18 in. (457
mm) from ground and at least 12 in. (305 mm) above anticipated
snow level.
After selecting proper hood locations, make appropriate size hole
through exterior wall, pass flexible duct through hole and insert
hood tube into duct. Tape duct vapor barrier tightly around hood
tube and insert assembly back into wall and fasten securely.
WALL CONTROL
Location
The HRV wall controls are unique to HRV and must be installed
for proper unit operation.
Four wall control options are available:
1. Basic Control
2. OneTouch Control
3. Standard Control
4. Automatic Control
Basic Control Operation
The basic control contains a 3 position slide switch which is used
to manually select OFF, LOW, and HIGH speed blower operation.
The unit operates continuously when LOW or HIGH is selected
(see Table 1).
Table 1 – Basic Control
MODE
OPERATION
DAMPER
POSITION
FAN
SPEED
Off
Off
Closed to outside
Off
Low
Air exchange with
outside
Open to outside
Low
High
Air exchange with
outside
Open to outside
High
OneTouch Control Operation
Press “Push” until the desired ventilation operation is selected.
There are three selections: High, Low, Intermittent. The power
indicator light indicates which mode has been selected. See Table
2.
Table 2 – OneTouch Push Button Control
MODE
OPERATION
DAMPER
POSITION
FAN
SPEED
Off
Off
Closed to outside
Off
Low
Air exchange with
outside
Open to outside
Low
Intermittent
Air exchange with
outside
Open to outside
Low
High
Air exchange with
outside
Open to outside
High
1. HIGH: This mode is recommended for the removal of ex-
cess pollutants and humidity. The ventilator will operate at
its maximum speed continuously. The power indicator light
will be lit red when this mode is selected.
2. LOW: This mode is recommended for normal daily opera-
tion. The ventilator will operate at minimum speed continu-
ously. The power indicator light will be lit yellow when this
mode is selected.
3. INTERMITTENT: This mode is recommended when the
inside air is too dry in the heating season or too humid in
the cooling season. The ventilator will operate at its minim-
um speed for 20 minutes per hour and be off for 40 minutes
per hour. The power indicator light will be lit green when
this mode is selected.
4. OFF: To turn the ventilator off, press “Push” until the power
indicator light is turned off.
Standard Control Operation
The standard wall control has 3 basic modes of operation, OFF,
LOW, and INTERMITTENT. Be sure that all modes of operation
are fully functional. See Table 3 indicating standard control
operation.
1. With switch off, the HRV is inoperative and the LED is out.
2. With switch on LOW, the HRV continuously exchanges air
with outside. If control is satisfied, blower will run in low
speed, otherwise, blower will run on high speed. The LED
is illuminated all the time.
3. With switch on INTERMITTENT, the HRV exchanges air
with outside on high--speed blower, and unit shuts down
when control is satisfied. The ON LED is illuminated all the
time, and AIR EXCHANGE LED is illuminated only when
unit is running. This mode is ideal for maintaining proper
humidity levels when no one is home.
Automatic Control Operation
This control contains an adjustable dehumidistat and push button
switch to cycle between 3 modes of operation. There are 5 LEDs to
indicate mode of operation (see Table 4).
