Frigate User’s Manual
Table Of Contents
- Safety requirements
- Purpose
- Delivery set
- Designation key
- Technical data
- Unit design and operating principle
- Installation and set-up
- Connection to power mains
- Unit control
- Technical maintenance
- Storage and transportation regulations
- Manufacturer’s warranty
- Certificate of acceptance
- Seller information
- Installation certificate
- Warranty card
20
HRV/ERV 80/100/120/150 (R) (EC) (L)
www.vents-us.com
FREEZE PROTECTION OF THE HEAT RECOVERY CORE
The freeze protection function prevents freezing of the heat recovery core in the cold season. This function is activated automatically
and cannot be turned on or 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 below.
The temperature conditions for this mode are described in the table below.
Air temperature in the air duct for the
incoming fresh air
Duration of the operation in the respective mode [min]
Defrost mode Rated mode
Above 23 F (- 5 °C) - permanent
From 5 F (- 15 °C) up to 23 F (-5 °C) 10 30
From -17 F (- 27 °C) up to F (-15 °C) 10 20
Below -17 F (- 27 °C) 10 15