4.7 Connections
4.7.1 Ducting
4.7.1.1 Air connections principles
Fig. 9 Connections and basic components in left hand connected units
Position
Description
Symbol
A
Connection supply air
B
Connection exhaust air
C
Connection outdoor air
D
Connection extract air
1
Fan supply air
2
Fan extract air
3
Filter supply air
4
Filter extract air
5
Heat exchanger
6
Rotor motor
7
Electrical connection box
8
Re-heater battery
4.7.1.2 Condensation and Heat Insulation
Outdoor air duct and discharge ducts must always be well insulated against condensation. Correct
insulation installation on ducts connected to the unit is especially important. All ducts installed in cold
rooms/areas must be well insulated. Use insulating covering (minimum 100 mm mineral wool) with plastic
diffusion barrier. In areas with extremely low outdoor temperatures during the winter, additional insulation
must be installed. Total insulation thickness must be at least 150 mm.
Topvex SR 09, 11, TR 09-15
Installation instructions
207577
12
Systemair AB
