INSTALLATION
16
Mexico Slimline RS445 -
Installation & Servicing
15 ELECTRICAL CONNECTIONS
WARNING.
The appliance MUST be efficiently earthed.
A mains supply of 230 V ~ 50 Hz is required.
The fuse rating should be 3A.
All external controls and wiring MUST be suitable for mains
voltage.
Wiring should be in 3-core PVC insulated cable NOT LESS
than 0.75 mm
2
(24 x 0.2 mm) to BS.6500, Table 16.
Wiring external to the boiler MUST be in accordance with
current l.E.E. (BS 7671) Wiring Regulations and local
regulations. For Ireland reference should be made to the
current ETCI rules for electrical installations.
13 GAS CONNECTION
1. A MINIMUM working gas
pressure of 20 mbar (8 in.w.g.)
MUST be available at the boiler
inlet, with the boiler operating.
2. Extend a gas supply pipe NOT
LESS THAN 15mm (
1/2
") OD to
the boiler and connect to the gas
cock situated at the bottom LH
side of the boiler. Attachment to
the gas supply may be either left
or right hand.
3. Test the gas installation for
soundness and purge in
accordance with BS.6891: 1988.
Refer to Frame 24.
Connection must be made in a way that allows complete
isolation of the electrical supply - such as a double pole
switch, having a 3mm (1/8") contact separation in both
poles, or a plug and socket serving only the boiler and
system controls.
The means of isolation must be accessible to the user after
installation.
This connection should be readily accessible and be made
adjacent to the boiler (except in the case of bathroom
installations for domestic boilers where the point of
connection to the mains MUST be outside of the bathroom).
14 WATER CONNECTIONS
Pack for use as necessary in the rear flow or return
water connections.
1. Connect the system flow and return pipework to the
boiler as appropriate. Refer to Frames 3 and 4 for
guidance on system design.
2. Ensure that all valves are open. Fill and vent the
system and check for water soundness.
Notes.
a. Isolating valves must be fitted as close to the pump as
possible.
b. The boiler is not suitable for use with a direct hot water
cylinder.
c. Gravity connections MUST be at least 28 mm (1").
d. The front top and bottom plugged connections MUST
NOT BE USED.
e. 2 spare blanking off plugs are provided in the Hardware
INST
ALLA
TION
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