Watersavers WLDS-10 Mk3, Installation & Commissioning, Page: 5 / 20

2-INSTALLATION INSTRUCTIONS
NB: THE INSTALLATION SHOULD COMPLY WITH LOCAL AND SITE
REGULATIONS AND BE CARRIED OUT BY A QUALIFIED ELECTRICIAN.
MECHANICAL
Plumb in pulse water meter according to the manufacturer’s instructions. If required
plumb in a 24v DC solenoid shut off valve to isolate water supply in the event of an
alarm. Consider fitting a bypass so that water may be drawn in event of a power or
valve failure.
ELECTRICAL
Fix the steel enclosure in a suitable position protected from the elements as close to
the pulse meters as is practicable. A 240v 50Hz supply (5A spur) with means of
disconnecting the power will be required. The LCD display and keypad should be
easily accessible and clearance made to allow the door to open fully.
Connect single phase supply to terminals E, L & N using 0.75 or 1.0 mm² cable -
see wiring diagram - Fig 1
Connect Main (M1) pulse meter using 2 core 0.5 or 0.75mm² cable to terminals
1 & 2 – see wiring diagram - Fig 1
Note if a long cable run is required (>10m) use cable of at least 0.75mm
2 screened or
armoured cable with sheath earthed at panel end.
Normally Open contact is available at terminals 11 & 12 used for alarm or BMS - see
wiring diagram - Fig 2 & Fig 3
Solenoid valve a contact is available at terminals 13 & 14 for operating a solenoid
shut off valve in the event of an alarm. This may be set for a Normally Closed or a
Normally open valve in ‘SOLENOID VALVE SETUP’ - see wiring diagram - Fig 4
24v DC supply is available on terminals marked - & + which can be used in
conjunction with either contact to suit individual applications – see specifications for
ratings.
When the above steps have been completed turn on the electricity supply. After a
brief welcome screen showing ‘Watersavers WLDS-10 Mk3’ the Main screen will show
– see section 4
CHECK TIME & DATE AND SET IF NECESSARY – see section 5