8
Overall description, continued
There are three different variants of the HCV 400 unit: P1, P2, E1 . The function and installation
of the unit is exactly the same . The variants only differ by their heat exchanger thus influenc-
ing the performance of the unit .
The product label showing the variant is placed next to the USB connection (see below) .
Fig . 2
This section illustrates the function of the different parts in drain mode A / B .
Duct 1
Duct 2
Duct 4
Duct 3
Drain
mode A
Drain
mode B
Fig . 3
Part
Mode A
Mode B
Duct connection 1 (Fig . 3)
Outdoor air - T1
Extract air - T3
Duct connection 2 (Fig . 3)
Supply air - T2
Exhaust air - T4
Duct connection 3 (Fig . 3)
Extract air - T3
Outdoor air - T1
Duct connection 4 (Fig . 3)
Exhaust - T4
Supply air - T2
Filter 1 (Fig . 1)
Extract filter G4
Supply filter G4 or F7
Filter 2 (Fig . 1)
Supply filter G4 or F7
Extract filter G4
Fanbox 1 (Fig . 1)
Extract fan
Supply fan*
Fanbox 2 (Fig . 1)
Supply fan*
Extract fan
*Supply fanbox can be fitted with electrical preheat element (accessory)
HCV variant
P1, P2, E1
Description of
drain mode A / B
