Ariston ACO 35 MFFI, Инструкции по установке и обслуживанию

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8
2.8. W
ATER
C
ONNECTIONS
Legend:
A = Central Heating Flow
B = Domestic Hot Water Outlet
C = Gas Inlet
D = Domestic Cold Water Inlet
E = Central Heating Return
H = Condensate discharge
G = Condensate trap
F = Safety valve discharge
Central Heating
Detailed recommendations are given in BS 6798:2000 and BS
5449-1:1990, the following notes are given for general guidance.
P
IPE
W
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 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.
Particular attention should be paid to pipes passing through
ventilated spaces in roofs and under floors.
B
Y
-
PASS
:
The appliance includes an automatic by-pass valve, which
protects the main heat exchanger in case of reduced or
interrupted water circulation through the heating system, due
to the closing of thermostatic valves or cock-type valves
within the system.
S
YSTEM
D
ESIGN
:
This boiler is suitable only for sealed systems.
D
RAIN
C
OCKS
:
These must be located in accessible positions to permit the
draining of the whole system. The taps must be at least
15mm nominal size and manufactured in accordance with BS
2870:1980.
V
IEW OF THE
B
OILER
C
ONNECTIONS
G
H
F
IG
. 2.4
2.6. E
LECTRICAL
C
ONNECTION
The boiler operates with alternating current, as indicated in the
technical data table (
Section 1.2 ), where the maximum absorbed
power is also indicated. Make sure that the connections for the
neutral and live wires correspond to those indicated in Fig.2.3).
The appliance electrical connections are situated inside the
electrical box (see
Section 2.12 ).
I
MPORTANT
!
In the event that the power supply cable must be changed,
replace it with one with the same specifications. Make the
connections to the terminal board located within the control
panel, as follows:
- The yellow-green wire should be connected to the terminal
marked with the earth symbol; make sure to re-use the ferrule
mounted on the other supply cable;
- The blue wire should be connected to the terminal marked “N”;
- The brown wire should be connected to the terminal marked “L”.
F
IG
. 2.3
2.7. G
AS
C
ONNECTION
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 must not be used.
Note: The diagrams for the electrical system are indicated in
Sections 2.12 and 2.13 (pages 22-24).
Warning, this appliance must be earthed.
External wiring to the appliance must be carried out by a
competent person and be in accordance with the current I.E.E.
Regulations and applicable local regulations.
The appliance is supplied with a fly-lead already connected, this
must be connected to a 240v supply fused 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 Sections 2.12 for further information.
F