Gas Connection; Water Connection - Ariston microCombi 23 MFFI Installation And Servicing Instructions

2.7 G C
AS ONNECTION
2.8 W C
ATER ONNECTIONS
F . 2.5
IG
8
at 3A and must facilitate complete electrical isolation of the appliance, by the
use of a fused double pole isolator having a contact separation of at least 3
mm in all poles or alternatively, by means of a 3 A fused three pin plug and
unswitched shuttered socket outlet both complying with BS 1363.
The point of connection to the Electricity supply must be readily accessible
and adjacent to the appliance unless the appliance is installed in a bathroom
when this must be sited outside the bathroom (see section 2.2).
Should external controls be required, the design of the external electrical
circuits should be undertaken by a competent person, see section 2.12 for
further information.
The local gas region contractor connects the gas meter to the service pipe.
If the gas supply for the boiler serves other appliances ensure that an
adequate supply is available both to the boiler and the other appliances
when they are in use at the same time.
Pipe work must be of an adequate size. Pipes of a smaller size than the
boiler inlet connection should not be used.
F . 2.4
IG
L :
EGEND
A = Central Heating Flow
B = Domestic Hot Water Outlet
C = Gas Inlet
D = Domestic Cold Water Inlet
E = Central Heating Return
F = Safety Valve Outlet
P W :
IPE ORK
Copper tubing to BS EN 1057:1996 is recommended for water pipes.
Jointing should be either with capillary soldered or compression fittings.
Where possible pipes should have a gradient to ensure air is carried
naturally to air release points and water flows naturally to drain taps.
The appliance has a built-in automatic air release valve, however it should
KT007A
be ensured as far as possible that the appliance heat exchanger is not a
natural collecting point for air.
Except where providing useful heat, pipes should be insulated to prevent
heat loss and avoid freezing.
V B C
IEW OF THE OILER ONNECTIONS
F F
SC005A