FREEZE PROTECTION OF THE HEAT RECOVERY CORE
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
The freeze protection function prevents freezing of the heat
recovery core in the cold season. This function is activated
automatically and cannot be turned off. The ventilation unit
periodically switches from rated operation mode to the special
defrost mode (the extract fan runs in high speed, the supply fan is
off) and vice versa according to the signaling from the outdoor
temperature sensor. The temperature conditions for this mode are
described in the table on the left.
START-UP AND CHECK OUT PROCEDURE
•
Make sure power is disconnect by unplugging
electrical cord
•
Check field-supplied control wiring to insure proper
installation and that all connection are tight
•
Check field-supplied power supply for proper voltage
•
Make sure that unit is securely mounted or
suspended and that there are no tools or loose debris
in, around or on top of the unit
•
Check all duct connection to insure they are sealed
•
Check all duct outlets. All outlets MUST be open
•
Check unit filters
•
Close unit door
•
Make sure that the intake hood is positioned away
from any exhausts or other sources of pollutants. The
quality of the introduced fresh air is the most
important function of this system
•
Instruct end user on proper operation procedures
and leave use and care manual with them
TROUBLESHOOTING
Use the guide below to help find and correct system faults and then contact technical support
before replacing the unit or components or for additional troubleshooting.
