Venting The Heat Exchanger; Draining The Heat Exchanger; Setting The Unit Code - Biddle Comfort Circle Series Manual

M
ANUAL
8.8

Venting the heat exchanger

8.9

Draining the heat exchanger

8.10

Setting the unit code

Version: 1.0 (21-09-2005)
The vent valve 1 is above the CH connections. The
CC H1/C2 has two vent valves.
1
The heat exchanger can be completely drained.
1. Recirculation units: Remove the main cover and the drip
2. Open the drain plug 1 of collector 2.
2
c
1
After replacing the PCB, you must enter the unit code. The
unit code depends on the unit type and is indicated on the
type plate.
c
tray (see section 8.4).
Ventilation units: Remove the main cover (see section 8.5).
The CC H1/C2 has two drains.
Caution:
After refilling the system, check the sealing of the drain
plug.
Caution:
Entering the unit code can be done only if one unit is con-
nected to the controller. If necessary, connect the control-
ler separately to the unit concerned.
S
ERVICE
57