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Baxi KH2ZPC Installation Instruction page 5

2-zone floor module

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Control box
With built-in ambient temperature sensor.
To be installed in zone 1.
BUS
A BUS
Heating
board
HEATING MODULE
A BUS
- 2-conductor cable, min. size 1 mm
- Total length of the BUS connection: 40 meters (heating board / control box connection + heating board / zone board if
any connection).
- To be connected on the terminal strip of the boards, zones A1 and A2, located in the module.
Heating
board
HEATING MODULE
P Zone ambient temperature sensor
- For zone 2, Floor: mandatory, supplied with the module.
- For zone 1, Floor: required only if the control unit is not placed in a
location that is representative of the temperature in zone 1.
Caution:
In this case, the remote zone 1 sensor must be activated through
parameterisation on the control unit (refer to control's technical manual).
This sensor is proposed as accessory 70250065.
- Wall mounting: the sensor is designed to be mounted in a "Mosaïc" type
(45 x 45), flush-mounted electrical box (not supplied).
It is to be installed in a location that is representative of the temperature
in the zone.
- The sensor must not be installed in corners, on shelves or behind
curtains, near sources or heat or directly exposed to sunlight.
The unit should be installed approximately 1.5 m above the floor.
- Use a 2-conductor cable for installation, minimum size: 0.5 mm
- To be connected directly on the corresponding zone board (terminals C and S5).
Q Water temperature probe (Floor zone outgoing line)
- Indicated for informational purposes as it is already connected in the module.
2-ZONE FLOOR MODULE
Board, zone 2
Q
Water
temperature,
zone 2
2
.
A2
2-ZONE FLOOR MODULE
5
BUS
A2
temperature,
P
Possible accessory
Ambient
temperature,
(If control box is installed
zone 2
outside zone 1)
A1
20 cm min.
2
and max. length: 25 meters.
Board, zone 1
A1
Q
Water
zone 1
P
Ambient
70250065
temperature,
zone 1
Caution:
Be sure to respect
the polarities + and -
1.50 m
Ambient Sensor
GB

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