Hoval RoofVent CON-9, Design Handbook

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3 Technical data
3.1 Unit type reference
Below-roof unit
TWC - 9 / DN5 / LW.T + T - K.C - D / ...
Unit type
RoofVent
®
twin cool
Unit size
9
Control
DN5 Design for DigiNet 5
KK Design for non-Hoval controls
Roof unit
Roof unit with energy recovery for RoofVent
®
twin
Combi box
T with energy recovery and extract air filter (without coil)
T.T with energy recovery, extract air filter and coil type T (for 4-pipe system)
Heating/cooling section
K.C Heating/cooling section with coil type C
K.D Heating/cooling section with coil type D
Air-Injector
Options
Table E2: Unit type reference
3.2 Application limits
Extract air temperature max. 50 °C
Extract air relative humidity max. 60 %
Moisture content of extract air
1)
max. 9.5 g/kg
Fresh air temperature
2)
min. -30 °C
Heating medium temperature max. 120 °C
Operating pressure max. 800 kPa
Supply air temperature max. 60 °C
Minimum operating time VE2 min. 30 min
Amount of condensate max. 150 kg/h
Air flow rate min. 5000 m³/h
1)
If the ambient humidity increases by more than 2 g/kg, a drop eliminator
for the plate heat exchanger and an extract air filter in front of the extract
air grille must be installed.
2) In the case of operation at a fresh air temperature of below -20 °C, a drop
eliminator for the plate heat exchanger must be installed.
Table E3: Application limits for the RoofVent
®
twin cool
Caution
Danger of damage to the unit as a result of conden-
sate. At high humidity levels or extremely low fresh
air temperatures, humidity in the extract air may
condense in plate heat exchanger 1. Use the drop
eliminator (option) to ensure that no condensate can
drip into the unit.
RoofVent
®
twin cool
Technical data