Advertisement
10.
DOMESTIC WATER SUPPLY
See Figs. 5 and 7.
NOTE: The following mstructions are general installation recom-
mendations and reference should be made to the local Water
Authority before fitting any of these appliances. In the event of
difficulty please contact the manufacturer
1.
MAINS COLD WATER INLET
Connection is made as shown in Figs 5 and 7.
Devices capable of preventing the flow of expansion water
should not be fitted unless separate arrangements for
expansion water are made_ The final600 mm (23.6 in.) of the
mains cold water connection to the appliance should be made
in copper only
2.
HOT WATER SUPPLY AND FLOW REGULATION
The appliance
1s
fitted w1th two water flow regulators
The maximum flow of domestic hot water available through
the appliance is limited to 21 litres/min. (4.5 gal./ min.).
NOTE: The flow regulators contained within the flow regulator
housing are plastic. Do not heat the housing during soldering
operations on adjacent joints, e.g. remove and replace after
soldering
11 .
ELECTRICAL
See Figs. 8, 9. 10 and 11
NOTE. Sw1tch off the mains supply before removing the control box
cover
ro gain access to the electrical terminal stnp:
(a)
Remove the cabinet top panel by snatching squarely upwards
(b)
Release the five pozi·drive screws securing the cover of the
electncal control box and remove.
ROOM AND FROST THERMOSTATS
If the room or frost thermostat 1s to be fitted, it should be w1red into
the appliance terminal strip as shown in Fig. 8. One or both of the
blankmg plugs must be removed from the electncal cover and the
cable passed through the hole. A Heyco cord strain rel!ef bush
(packed c,eparately with these mstructions) must be used to retain
the cables at th1c, point. The cables should be routed neatly away
from hot sur! aces to
a
convenient ex1t pmnt from the cabinet.
MAINS WIRING
The method of connectiOn to the appliance must facilitate the
complete !solation of the appl!ance, preferably via a 3 amp fused
t hrce·pin plug and unswitched shuttered socket outlet, both
complymg with the requirements of BS 1363. Alternatively con·
nection may be made via a double pole isolator with a contact
separation of 3 mm in all poles and supplying the boiler and
controls only
Mains Cable: 0.75 mm
2
(24 x 0.20 mm) to BS 6500 Table 16.
Temperature rated at 1 00°C.
Should the factory fitted mains cable need to be replaced then the
new cable must be connected into the terminals marked l, Nand
+at the left hand side of the appliance terminal strip. The cable
should then be passed through the cable clamp located in the left
hand side of the electrical cover and clipped to the two cable
retaining clips fixed to the left hand side panel. Care should be taken
that the cable is clipped neatly into place.
NOTE. Ensure that the earth wire is longer than the live and neutral
conductors so that they become taut before the earth
10
3.
TAPSANDVALVES
Hot and cold taps and mixing valves used with this appliance
must be suitable for operating at mains pressure
4.
SHOWERS (FIXED HEAD TYPE)
No anti·syphonage arrangements are necessary
5.
SHOWERS (LOOSE OR FLEXIBLE HEAD TYPE)
If a loose head shower with flexible hose is to be used over a
bath, the hose must be fixed so that the head cannot fall closer
than 25 mm
(1
in.) above the top edge of the bath in order
that the head is prevented from being immersed in bath
water~
Alternatively the shower must incoprorate or be fitted with an
anti·syphonage device at the point of the flexible hose con·
nections.
6.
BIDETS
The supply of hot and cold mains water direct to a bidet is
permitted provided that the bidet is of the over·rim flushing
type. The outlet(s) should be shrouded and unable to have any
temporary hand held spray attached No anti·syphonage
arrangements are necessary
7.
USE IN HARD WATER AREAS
If the appliance is used in any area where the temporary
hardness exceeds 200 ppm a Worcester 'In·Line' scale
inhibitor (available from Worcester Heat Systems Ltd.) must be
fitted into the cold supply to the appliance
Installation should be strictly in accordance with the require·
ments of the local Water Authority. An isolating valve to
facilitate serv1cing may be incorporated.
The external wiring between the appliance and the electrical supply
shall comply with current lEE Wiring Regulations, and any local
regulations which apply. The appliance must be earthed.
SAFETY CHECK
In the event of an electrical fault after installation of the appliance,
preliminary electrical system checks shall be carried out (i.e. earth
continuity, polarity and resistance to earth, etc.), as described in the
British Gas Multimeter Handbook.
Fig. 9. Room thermostat
and frost thermostat connections.
ROOM THERMOSTAT CONNECTIONS
REMOVE UNK -
c
ri,J
t
HONEYWELL ROOM
THERMOSTAT 6160
OR SIMILAR.
FROST THERMOSTAT CONNECTIONS
A SUIT ABLE 2-POLE
FROST THERMOSTAT
I
I
I
240V-.. 50Hz
BOILER MAINS
SUPPLY
Advertisement
