rev:12.07.17
3.5.
Summer mode
During unit's work heat recovery is only needed to temperature of around 18
°
C
. Cold recovery is neecessary
in ventilated rooms if temperature is above 26
°
C
.
When outter temperature is between 15-26
°
C
it is required to use by-pass, which results in ommision of warming the air. For this purpose Optimal 400 by-
pass/600 b-pass ar equipped with automatic by-pass.
The moment when by-pass is opened hear exchange does not take place. By-pass is used for cooling
ventilated rooms with the use of cool air for example from GWC.
Switch, presented on the picture below in position By-Pass Manual means opening the actuator.
It closes when outter temperature falls below 10
℃
. Switching to By-Pass Auto means automated work
of actuator.
Optimal 400/600
9.
By-pass location
10.
1- Bypass Auto
2 - Bypass Manual
3 -
Actuator
4 -
Carbon monoxide sensor
Bypass
EN
