Ariston INTESA TP23, Руководство пользователя

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25
7. COMMISSIONING
Preliminary electrical system checks to ensure electr ical safety
must be carried out by a competent person i.e. polarity, earth con-
tinuity, resistance to earth and short circuit.
F
ILLING THE
H
EATING
S
YSTEM
:
Lower the control panel and remo ve the case panels (see
S
ECTION
6.11 for further information).
Open the central heating flow and return cocks supplied with
the connection kit (there are tw o isolation points on the retur n
connection).
Unscrew the cap on the automatic air release v alve one full
turn and leave open permanently.
Close all air release valves on the central heating system.
Gradually open valve(s) at the filling point (filling-loop) connec-
tion to the centr al heating system until w ater is heard to flo w,
do not open fully.
Open each air release tap star ting with the lo west point and
close them only when clear water, free of air, is visible.
Purge the air from the pump by unscrewing the pump plug
anticlockwise, also manually rotate the pump shaft in the
direction indicated by the pump label to ensure the pump
is free.
Refit the pump plug.
Continue filling the system until at least 1.5 bar registers on the
pressure gauge.
Inspect the system for water soundness and remedy any leaks
discovered.
Filling of the D.H.W. System:
Close all hot water draw-off taps.
Open the cold water inlet cock supplied with the connection kit.
Open slowly each draw-off tap and close them only when clear
water, free of bubbles, is visible.
Gas Supply:
Inspect the entire installation including the gas meter , test for
tightness and purge the supply as described in BS 6891:1988.
Open the gas coc k (supplied with the connection kit) to the
appliance and check the gas connections on the appliance for
leaks.
When the installation and filling are completed, flush the system
while cold, refill, tur n on the Centr al Heating system (
Section
7.2) and run it until the temperature has reached the boiler oper-
ating temperature. The system must then be immediately flushed
through.
The flushing procedure must be in line with BS 7593:1992 code
of practice for treatment of w ater in domestic hot w ater central
heating systems.
During this operation, we highly recommend the use of a centr al
heating flushing detergent (F ernox Superfloc or equiv alent),
whose function is to dissolv e any foreign matter that ma y be in
the system.
Substances different from these could create serious pr ob-
lems to the pump or other components.
The use of an inhibitor in the system such as F
ernox MB-1 or
equivalent is strongly recommended to pre vent corrosion
(sludge) damaging the boiler and system.
Failure to carry out this procedure may invalidate the appli-
ance warranty.
7.1 Initial Preparation
7.2 Initial Start-up
T
HE CHECKS TO BE RUN BEFORE INITIAL START
-
UP ARE AS FOLLOWS
:
1. Make sure that:
- the screw on the automatic air valve has been loosened when
the system is full;
- If the water pressure in the system is below 1 bar, bring it up
to the appropriate level;
- Ensure that the gas cock is closed;
- Make sure that the electr ical connection has been made
properly and that the ear th wire is connected to an efficient
earthing system;
- Supply power to the boiler by pushing the On/Off button “A”
(see F
IG
. 6.16) - the L.E.D. “K” will illuminate. Then push the
button
“F” in for central heating - the L.E.D. “G” will illumi-
nate. This will start the circulation pump. After 7 seconds, the
boiler will signal a shutdown due to ignition failure. Leave the
boiler as it is until all of the air has been b led from the sys-
tem.
- Loosen the cap on the head of the pump to eliminate an y air
pockets;
- Repeat the procedure for bleeding the radiators of air;
- Open the taps for a brief period;
- Check the system pressure and, if it has dropped, open the
filling loop again to bring the pressure back up to 1 bar.
2. Make sure that all gate valves are open;
3. Turn on the gas cock and check the seals on the connections
with an approved soap solution and eliminate any leaks.
4. Press the reset b utton “I” for the lighting system; the spark
will light the main burner. If the burner does not light the first
time, wait 1 minute and repeat the procedure.
5. Check the minimum and maximum burner pressure values;
adjust if needed using the v alues indicated in the tab le in
S
ECTION
4.
To access the areas in which adjustments are made , it is neces-
sary to open the control panel, as indicated in
Section 6.11, then
remove the rear inspection cover by unscrewing the two screws.
Access is thereby provided to the P.C.B. and to the following com-
ponents:
1. The power supply cable connector;
2. The fuses;
3. The soft-light potentiometer the setting f or which can r ange
from the minimum thermal power to the maximum;
4. The maximum thermal heating po wer potentiometer
adjustable by the minimum to maximum power (already cali-
brated in the factory to 70% of the maximum thermal power);
5. The jumper for adjusting the ignition dela y (anti-cycling) fea-
ture, which can be set from 0 to 2 min utes (set in the factory
at two minutes);
6. Fan/Pump Over-run (Electrical Diagram). When the jumper is
set to position A the F an and Pump o ver-run is activated. (The
jumper is factory set in position B)
7. The time clock connector.
7.3 Operational Adjustments