6 Installation
Fig.19
Connecting the power supply cable
1
4
X120
5
X81
X81
32
6.6.4
The energy-efficient modulating pump must be connected to the standard
PCB of the PCU. Proceed as follows:
1. Connect the power supply cable and the cable for the PWM signal to
2. Remove the grommet from the opening in the middle of the base of
X116a
3. Pass the pump power supply cable through the base of the boiler
4. Pass the PWM cable from the pump through one of the grommets
2
5. Connect the pump power supply cable to the cable in the instrument
3
X81
6. Connect the pump PWM cable to the cable in the instrument box
7. Add the pump cables to the cable bundles by opening and closing
6
X8
X10
PWM
7
AD-0000038-01
Connection options for the standard PCB
Connecting the PWM pump
the pump.
the boiler.
and seal the opening by tightening the bayonet fitting to the cable.
on the right in the base of the boiler.
box that is connected with connector X8.
that is connected with connector X10.
the cable bundle bands.
123157 - v.12 - 07022018