Connecting A Ventilation Unit - Biddle Comfort Circle Series Manual

I
NSTALLATION
2.8

Connecting a ventilation unit

2 1
2
1
CC V-V
18
2.8.1 Connecting air intake ducts (CC V)
The ventilation units are fit for drawing air from elsewhere to
discharge it into the room. This air can be either filtered out-
CC V-H
side air or preconditioned air.
It is possible to open and close air valves with the unit.
w
Warning:
Filtered air 1 must be supplied to the ventilation
unit.
n
Note:
To prevent draught when the unit is switched off, Biddle
recommends to include air valves 2 in the air intake ducts.
1. Connect insulated ducts with a diameter according to
table 2-3 to the unit.
Table 2-3 Diameters of ducts
T
YPE
CC 60-V-H
CC 60-V-V
CC 90-V-H
CC 90-V-V
2. Connect the air valve servomotors to the unit according
to the wiring diagram.
2.8.2 Air valve control
There are two options for controlling air valves:
• via the 0-10VDC output on the PCB for the control of
0-10VDC servomotors.
• via a signal to output O3 (24V~1A).
C
D
UCT DIAMETER
ø200mm
ø280mm
ø200mm
ø400mm
C
OMFORT IRCLE
N
UMBER
2
1
4
1