Dimplex WB7 Water Heater User Manual


 
4
WARNING: THIS APPLIANCE MUST BE EARTHED
REAR ENTRY OF CABLE
Fixed or flexible cable to be connected direct to the terminal block, cable gland
not utilised.
BOTTOM ENTRY OF CABLE
Use the cable gland. Loosen cable-gripping nut. Pass cable through gland,
leaving enough free cable to connect into the terminal block. Tighten cable
gland grip nut.
DO NOT SWITCH ON UNTIL THE INSTALLATION IS COMPLETE AND THE CASE AND
TAP ARE IN PLACE
WATER CONNECTION
NOTE: Although it will not harm the boiler, it should not be operated with
the water supply turned off.
The water supply must have a pressure not exceeding 7 Bar (700kpa) and no
lower than 1 Bar (200kpa). If the mains water pressure is below1 Bar a fault
situation could arise as described in section; “Temperature Control and
Safety cut-outs”.In addition the water inlet valve may not seat properly
and can cause overflowing
If your water pressure exceeds 7 Bar, a suitable pressure reduction valve will
need to be fitted to the water supply to bring it to a level that the machine can
cope with. Failure to do this could result in the boiler overfilling .
The manufacturers cannot be held responsible for any machine malfunction if
the water pressure exceeds that stated. If in doubt, consult your water supply
company.
The boiler has a type B air gap in compliance with water bylaws and has both
WRAS and KIWA approval.
Please note that washing machine hoses are not suitable for drinking
water and will cause a very bad taste to the water.
A 15mm stop valve should be fitted between the water supply and the boiler so
that the machine can be isolated. Water purification filters are available to
ensure fresh tasting water. Please contact the service department for details on
01704 502911. In hard water areas scale can cause problems. Fitting a scale
reducer will help minimise scale.
We regret that the manufacturers cannot be held responsible for scale problems
even if a scale reducer has been installed.