Standard Control Pcb - REMEHA Calenta 25s Installation And Service Manual

Calenta 25s - 28c - 35s - 40c
1
3
3
4
4
X13
040412 - 7600585-01
90º
1
3
7
X12
R000073-A
4.9.3.

Standard control PCB

Various thermostats and controllers can be connected to the standard
control PCB (PCU) (X12 connector block). The possible connections
on the standard control PCB are described in the following
paragraphs.
Access to the connector block:
1. Unscrew the two screws located under the front panel by a quarter
turn and remove the panel.
2. Thread the cables from the regulator or thermostat through the
right-hand grommet(s) on the lower plate of the boiler.
3. Tilt the control box forwards by opening the holding clips located
at the sides.
4. Open the tooling box by opening the clip fastener on the front side.
5. Run the connection cable(s) through the grommet(s) in the control
unit box.
6. Unscrew the necessary cable clamps (to access the connector
block) and introduce the cables.
7. Connect the cables to the appropriate terminals on the connector
block.
8. Firmly retighten the cable clamps and close the control panel.
4. Installation
41