Supplied By www.heating spares.co Tel. 0161 620 6677
15
Linea Plus AG
5.6
Connecting the Gas and Water
5.6.1
Figs. 6 and 15 show the locations of the
fittings.
5.6.2
Do not over tighten nuts, use another spanner
to apply counter force to avoid damaging the
appliance
5.6.3
Gas Supply
Connecting the gas supply.
Connect a 15mm gas pipe to the gas service
tap and tighten the union nut securing the tap
to the appliance.
Pipework from the meter to the appliance
must be of adequate size.
A minimum gas pressure of 20mb (8 in. w.g.)
must be available at the appliance inlet at full
flow rate. See section 3.
DO NOT use pipes of a smaller size than the
appliance inlet connection.
5.6.4
Central Heating
Connect the central heating pipework (22mm
o.d) to the respective valves, right hand: flow,
left hand: return, and tighten the nuts.
5.6.5
Hot Water
Connect a 15mm pipe to the hot water outlet
connection of the appliance. Tighten the nut.
If the hot water system does not include a tap
below the hot water outlet connection, provide
a suitable drain tap to permit draining of the
appliance hot water side during servicing.
5.6.6
Cold Water
Connect a 15mm cold water service pipe to
the inlet stopcock of the appliance. Tighten the
nut.
If the cold water supply is liable to high pres-
sure or large pressure fluctuations, a flow/
pressure regulator should be fitted in the sup-
ply pipe.
Should the appliance be subject to 'mains
knock' it would be advisable to install an non
return valve in the hot water outlet pipe to
prevent unnecessary activation of the domes-
tic flow switch.
5.6.7
Safety Valve Discharge
Connect a 15mm pipe to the discharge outlet
of the appliance.
The discharge should terminate facing down-
wards outside the building in a position where
discharging (possibly boiling) water will not
create danger or nuisance; but in an easily
visible position.
5.7
Electrical Connections
5.7.1
The electricity supply must be as specified in
4.7. If controls external to the appliance are
required, design of the external electrical cir-
cuits should be undertaken by a competent
person.
See Section 10 for further advice.
Mains Input and
External Con-
trols Terminal
Block
Factory Fitted
Link Between
= & TA
Earth
Screw
Fig. 18a
Fig. 18
Electrical Cover
Screws
N.B. IT IS ESSENTIAL THAT ALL EXTER-
NAL CONTROL CIRCUITS AND WIRING IS
WIRED FROM THE SAME ELECTRICAL ISO-
LATOR AS SERVES THE APPLIANCE.
Factory fitted internal wiring must not be dis-
turbed when wiring external controls.
5.7.2
To gain access to the electrical terminals
Remove electrical cover by releasing four
securing screws. Fig.18.
The mains input terminal block is now easily
visible (see fig. 18a).
5.7.3
The electricity supply cable from the isolator
and the appliance terminal block must be 3
core flexible sized 0.75mm˝ (24 x 0.2mm) to
BS6500.
Wiring to the appliance should be rated for
operation in contact with surfaces up to 90
°
C.
