Nibe S135, Installation Manual, Page: 18 / 36

Ventilation flow
(exhaust air)
Connect S135 so that all the exhaust air, except kitchen
duct air (kitchen fan), passes through the evaporator
(EP1) in the exhaust air module.
The ventilation flow must comply with the applicable
national standards.
For the optimum exhaust air module performance, the
ventilation flow should not be less than 20 l/s (72 m³/h)
at normal exhaust air temperature. At lower exhaust air
temperatures, a higher flow is required.
The ventilation capacity is set in the indoor module’s
menu system (menu 7.1.4.1).
Adjusting ventilation
(exhaust air)
To obtain the necessary air exchange in every room of
the house, the exhaust air devices must be correctly
positioned and adjusted and the fan in the exhaust air
module adjusted.
Immediately after installation adjust the ventilation so
that it is set according to the projected value of the
house.
Incorrect adjustment of the ventilation may lead to re-
duced installation efficiency and thus poorer operating
economy, and may cause moisture damage in the
building
NIBE S135 Chapter 4 | Pipe and air connections 18