Start-Up; Checking And Preparing The Cold Water Supply - Vaillant aroSTOR VWL B 200/5 UK Installation And Maintenance Instructions Manual

5.3.4 Controlling the fan externally
Condition: Installing a partial pipe system
▶
If you want to keep a room aerated permanently, even
when the product is switched off, you can connect the
contact of the external fan control system (humidistat).
Caution.
Risk of material damage caused by incor-
rect handling.
Only external control contacts are compat-
ible.
▶
Only connect the external control contacts
to potential-free contacts.
▶
In particular, do not connect any live
cables.
▶
Remove the covering hood. (→ Page 10)
▶
Remove the black protective cover from the PCB.
▶
Guide the cable through the grommet on the rear of the
product and through the grommet on the rear of the elec-
tronics box.
▶
Connect the humidistat cable to the plug (2) on the PCB
(1).
◁
Contact opened: Fan not running
◁
Contact closed: Fan running
▶
In the menu, set the "Fan with external control" mode to
FAN MODE 3.
5.3.5 Connecting the photovoltaic installation
Note
The PV function and the management outside of
the power consumption cannot be used in parallel
as they use the same contact.
Condition: Existing photovoltaic installation
This function can make use of the self-sufficiency optimised
by the photovoltaic installation to supply the heat pump and
the immersion heater and to heat up the water in the cylin-
der.
Connecting the photovoltaic installation
0020285063_05 Installation and maintenance instructions
X3 T air
1
X4 T degiv
X5 T eau
X2 HP
2
2
1
Caution.
Risk of material damage caused by incor-
rect handling.
Only external control contacts are compat-
ible.
▶
Only connect the external control contacts
to potential-free contacts.
▶
In particular, do not connect any live
cables.
▶
Remove the covering hood. (→ Page 10)
▶
Remove the black protective cover from the PCB.
▶
Connect the cable to the photovoltaic installation to con-
nection terminal (1) on the PCB.
▶
If your photovoltaic installation's control has two control
contacts, connect it to the photovoltaic installation at con-
nection terminal (1) and (2) on the PCB; see "Electronics
box wiring diagram" in the appendix.
–
Connection terminal (1): Lower level of electrical
energy generated by the photovoltaic installation.
–
Connection terminal (2): Upper level of electrical
energy generated by the photovoltaic installation.
Connecting the photovoltaic installation
1 Connection terminal 2
6

Start-up

6.1 Checking and preparing the cold water
supply
▶
To guarantee that the product operates safely and to a
satisfactory standard, ensure that the water supply meets
the following criteria:
–
Minimum flow pressure: 150 kPa (1,500 mbar)
–
Maximum inlet supply pressure: 1,200 kPa
(12,000 mbar)
–
Minimum water flow: 15 l/min
–
Maximum chlorine content: 250 mg/l
–
Maximum water hardness: 200 mg/l
▶
Ensure that the product's cold water supply comes dir-
ectly from the cold water network downstream of the
main stopcock.
▶
Ensure that the cold water supply line has an internal dia-
meter of at least 19 mm, and comply with the require-
X3 T air
X4 T degiv
X5 T eau
X2 HP
1
2
2
1
2 Connection terminal 1
17