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Maintenance Instructions - Baxi KH2ZPC Installation Instruction

2-zone floor module

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5.3 - OPERATION
• Check circulator operation in the generator and the operation of the 2 circulators of the module. Adapt the speed of the
circulators in order to respect the flow rates. For the generator, refer to the corresponding installation manual.
Note:
When the system is off, operation can be forced by changing the parameterization:
- of zone 1 (accelerator on and control valve open) with parameter 65,
- of zone 2 (accelerator on and control valve open) with parameter 66,
- of the generator with parameter 67.
Caution:
At the end of testing and before starting the installation, the forced configuration must be deactivated
and parameters 65, 66 and 67 returned to zero.
• Check that water is properly circulating in the installation (valve position).
Note:
The mixing valves of each of the module's floor zone outgoing lines are delivered in full open position
(position "1").
They are equipped with a "3-point" motor for 230 VAC controlled by the zone board:
- Y1 = open control signal,
- N = neutral (common),
- Y2 = close control signal.
When off, it is possible to open the valves by actuating the motor using a 3 mm Allen wrench.
• Purge the installation. Check the bleeders located in the 2-zone module and heating module.
CAUTION:
An incorrect purge could result in malfunctions and damage to the heater of the heating module.
CIRCULATOR SXM 32 - 55
90
80
70
60
50
40
30
20
10
0
0
0.5
• Start the system in the desired operating mode using the control box button (consult the control's technical manual and the
control box user's guide).

6 - MAINTENANCE INSTRUCTIONS

• Before doing any work on the installation, make sure it is switched off and all power supplies locked out.
• Any work must be carried out by personnel qualified and authorised to work on this type of machine.
Speed 3
Speed 2
Speed 1
1
1.5
2
2.5
Water flowrate (m
IMPORTANT NOTE
• Water flowrate: The module's outgoing water lines
are equipped with 1/4 SAE pressure taps at the inlet
and outlet of each circulator, to enable the pressure
loss to be measured using a hydraulic pressure
gauge. Use the following circulator curves below
(circulator SXM 32 - 55) to find the water flowrate.
3
3
/h)
7
GB

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