Commissioning
Greenstar 8000 Life – 6720883865 (2019/02)
36
Fig. 54 Connecting the automatic filling facility
5.5.2
Cable preparations
NOTICE:
Damage to control unit!
Small pieces of wire can cause shorts and damage to electronics.
▶ When stripping wires always ensure copper strands do not fall into
the control box.
Mains voltage (power cables)
, example
figure 55
▶ Ensure the conductors (C) can reach the appropriate terminal
connection and that the protective (earth) conductor is longer than
the other wires.
– Power cables connected to the appliance my have different
conductor lengths depending on the termination point.
Fig. 55 Mains voltage (power cables) preparation
Low voltage (signal cables)
, example
figure 56
Fig. 56 Low voltage (signal cables) preparation
5.5.3
External controls - domestic installations
Appliance external control connections example
External 230V single channel timers:
▶ Leave DHW pre-wired link in place.
▶ The electrical power supply to the external equipment [2] is supplied
from 230V OUT - L (Live), N (Neutral) and
\
(earth) terminals.
▶ The Switch Live from the external equipment [3]:
– Heating/zone controls connects to
(
LR terminal, remove CH
pre-wired link only.
– Control for appliance Pre-heat function, optional.
Hot water time controller connects to
*
LR terminal, remove
pre-wired link (only use when a Worcester controller has been
fitted that does not have DHW pre-heat time control available or
no Worcester controller fitted).
▶ External frost thermostat connections [4]:
– The Live supply is terminal FS
– The Switch Live is terminal FR
Fig. 57 External controls connections example
[1]
230V mains supply to the appliance.
[2]
230V supply from the appliance to the external controls.
[3]
CH & DHW Switch Live (Demand) from the external controls.
[4]
External frost protection Live supply and Switch Live (Demand).
6
Commissioning
6.1
Pre-Commissioning checks
DANGER:
Risk of electric shock!
▶ Isolate electrical components from the power supply (230 V AC)
(fuse, circuit breaker) and secure against unintentional re-
connection before carrying out any work.
Information on safe isolation can be found in the Health and Safety
Executive guidance HSG85.
▶ Check for zero potential before proceeding with work, using test
equipment approved to GS38 to confirm that the electricity supply is
disconnected.
Checks before commissioning:
▶ Check that the service and water pipes are connected correctly.
▶ Check the gas type specified on the identification plate matches that
of the gas supply and that the gas supply is properly purged.
▶ Appliance converted to sealed system.
– Check that the appliance is filled with water and under pressure
(1.5 bar) and that there are no leaks.
▶ Check that the electrical connections of the appliance are correct:
– Mains electrical supply - 230V, 50Hz
– Compliant earth connection
– Correct polarities.
– External equipment and controls are wired in correctly.
0010020494-002
001002371
1-001
> C
C
6-8mm
6-8mm
N
L
230V
0010012956-001
26-30mm
6-8mm
0-30V
0010022764-001
FS
FR
PE
PC0
N L
PW2
N L
FS FR
LR LR
PW1
N L
N
IN
230V
OUT
230V
L
L N
LR
LR
3
N
L
2
4
230V OUT
1
230V AC
