DUCT CONNECTION
Ventilators
MODEL
ODD-ERV-80 | ODD-ERV-120
Instruction Manual
1-888-543-6473
1-888-541-6474
13376 Comber Way
Surrey BC V3W 5V9
[email protected]
www.ortechindustries.com
375 Admiral Blvd
Missis
s
auga
,
ON L5T 2N1
Perform duct work by following instructions below:
DO NOT connect the ducts as shown on the right:
•
To prevent air leakage, wind aluminum tape round the section
after the duct connecting flange and the duct are connected
•
To prevent air leakage, install the opening of the indoor air
intake as from the opening of the exhaust suction
•
Use the duct applicable to the unit used
•
Install the two outdoor ducts with down slope (slope of 1/30
or more) to prevent entry of rain water. In cold climate, please
provide insulation for both ducts to prevent dew formation
(Material: Glass wool of 1" thickness). If the unit is going to be
used in cold places where the outside temperature reaches
14ºF or below, insulate the indoor ducts as well
•
If the level of temperature and humidity inside the ceiling is
always high, install a ventilation equipment inside the ceiling
•
Insulate the duct and the wall electrically when a metal duct is
to be penetrated through the metal lattice and wire lattice or
metal lining of a wooden structure wall
•
Using flexible or silent ducts can be effective in reducing the
air discharge sound of the supply air to inside (SA). Select
materials keeping in mind the fan speed and operating sound
of the unit
•
Set the pitch between the exhaust air outlet (EA) and the
outdoor air intake (OA) to at least 3 times the duct diameter
•
DO NOT use a bent cap or a round hood as the outdoor hood
if they might get rained on directly (We recommend using a
deep hood instead)
Fig.4
CONNECTION OF CONTROLS
Timer:
A remote time is recommended for polluted indoor air areas. In
case of the timer activation, the unit goes to the high speed mode
and runs for the set time
(see Fig.5 on the right)
High-speed mode
(see Fig.6)
:
The unit has a three-position speed switch. LOW or MED speed
are used to set permanent operation mode or to set the
STANDBY mode. The external controls switch the ventilation unit
to the high-speed mode. The supply and extract fan speed is
individually adjusted.
Fig.5
Fig.6
