Electrical installation
25
5.2.1.
Further components for the boiler
feedback
►
Install further components (e.g. relay module
HC60NG/R6660D) in accordance with the enclosed
installation instructions.
6. Electrical installation
DANGER
Danger to life through electric
shock!
Contacts that are open are live.
►
Ensure that the device is de-
energised.
►
Have all the work carried out by
authorised qualified personnel.
►
Observe the valid IEE regulations
during the installation.
WARNING
Damage to exposed components!
Destruction of the electronic
components through electrostatic
discharges.
►
Do not touch the components.
►
Touch an earthed piece of metal to
discharge static electricity from your
body.
6.1. Electrical
installation of Universal
Mixing Valve Controller HM 80
6.1.1.
Opening the housing
►
Open the housing as shown in Fig. 5 on the fold-out page.
6.1.2.
Permissible cable types and lengths
Power and pump connection 230 V~
Outer cable
diameter
Min. 5.0 mm/max. 10 mm
Cable length
Max. 100 m
Terminal range
0,3–1,6 mm²
Stripping length
6 mm
Cable type
NYM-J
Flow temperature sensor
Outer cable
diameter
Min. 5.0 mm/max. 10 mm
Cable length
Max. 100 m
Terminal range
0,3–1,6 mm²
Stripping length
7 mm
Cable type
Flexible/Rigid
Earthed connection
Terminal range
0,3–2,7 mm²
Stripping length
8 mm
Tab. 2: Permissible cable types and lengths
6.1.3.
Securing cables with a cable gland
►
Secure the cables with the
enclosed Eurofix cable glands in
accordance with the following
graphic.
►
Observe the installation
instructions for Eurofix.
4
1
2
3
6.1.4.
Connecting a power cable (230 V~)
DANGER
Danger to life through electric
shock!
Contacts that are open are live.
►
Ensure that the device is de-
energised.
►
Select a suitable cable in accordance with Table 2 for the
power supply.
►
Strip the connections 7 mm.
►
Connect the cable to the
connector in accordance with the
graphic (see fold-out page,
Fig. 3 (8)).
►
Connect the earthed connection
(PE conductor) in accordance
with the following graphic.
►
Secure the cable with the cable clamp.