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FASTECH KI - KIS
10
ENGLISH
11
Maximum and minimum DHW output setting
-
Open the hot water tap to the maximum flow rate.
- On the control panel, set the function selector to
“Summer mode”
and set the DHW temperature selector to the maximum.
- Turn the boiler on by setting the main switch to “ON”.
- Check that the pressure reading on the gauge is stable. If the reading
is not stable, use a milli-ammeter (in series with a modulator wire)
to check that the maximum available current is delivered to the
modulator (120 mA for G20, and 165 mA for LPG).
- Remove the protection cap from the adjustment screws carefully
using a screwdriver.
-
Using a fork wrench CH10, turn the adjustment nut for maximum
output to obtain the value specified in
table 1
.
TABLE 1
Maximum pressure
downstream of valve
(tolerance ±10%)
NATURAL
GAS
(G20)
LIQUID GAS
BUTANE
(G30)
PROPANE
(G31)
FASTECH 24 KI
10,10
28,00
35,50
mbar
FASTECH 24 KIS
11,80
27,80
35,80
mbar
- Disconnect a faston clamp from the modulator.
- Wait for the pressure on the gauge to stabilise at the minimum value.
- Use a hex wrench – taking care not to press the internal shaft – to
adjust the red screw for the DHW minimum setting and calibrate
until the gauge shows the value specified in
table 2
.
TABLE 2
Minimum pressure
downstream of valve
(tolerance ±10%)
NATURAL
GAS
(G20)
LIQUID GAS
BUTANE
(G30)
PROPANE
(G31)
FASTECH 24 KI
1,20
3,50
4,60
mbar
FASTECH 24 KIS
1,50
3,30
4,30
mbar
- Reconnect a faston clamp on the modulator.
- Close the domestic hot water tap.
Electrical setting of minimum and maximum heating
The “electrical setting” function is activated and deactivated
exclusively via the jumper (JP1).
The function can be enabled by:
- powering up the board with jumper JP1 wired in, and the function
selector set to Winter, regardless of whether other operating requests
are active or not
- wiring in jumper JP1, with the function selector set to Winter, without
any heating requests in progress.
Activating the function involves starting up the burner by
simulating a heating request.
To calibrate:
- turn the boiler off
- remove the case and rotate the panel
C
FASTECH KI
FASTECH KIS
C
- unscrew the screws to access the board
- wire in jumper JP1 to enable the dials on the control panel for setting
the minimum and maximum heating values.
- ensure that the function selector is set to Winter
- connect the boiler to the mains
Electrical board powered (230 V).
-
Minimum
heating
setting
Maximum
heating
setting
Turn the heating water temperature dial to the minimum heating
value as specified in
table 3
TABLE 3
Minimum pressure
in heating mode
downstream of valve
(tolerance ±10%)
NATURAL
GAS
(G20)
LIQUID GAS
BUTANE
(G30)
PROPANE
(G31)
FASTECH 24 KI
1,90
5,60
7,30
mbar
FASTECH 24 KIS
1,50
3,30
4,30
mbar
- Wire in jumper JP2
- Turn the DHW temperature adjustment dial to the maximum heating
value as specified in
table 4
.
TABLE 4
Maximum pressure
in heating mode
downstream of valve
(tolerance ±10%)
NATURAL
GAS
(G20)
LIQUID GAS
BUTANE
(G30)
PROPANE
(G31)
FASTECH 24 KI
10,10
28,00
35,50
mbar
FASTECH 24 KIS
11,80
27,80
35,80
mbar
- Remove jumper JP2 to memorise the maximum heating value
- Remove jumper JP1 to memorise the minimum heating value and
to exit the calibration procedure
- Connect the compensation tube to the air chamber (only KIS model)
-
Disconnect the pressure gauge and refit the tapping point screw.
JP1
JP2
JP3
JP4
JP5
JP6
CN8
CN7
1
12
CN11
1
4
CN10
1
7
CN9
CN6
CN5
CN12
1
F1
2A
T
CN13
P1
P3
P2
CN4
1
3
CN3
1
2
CN2
1
6
TR1
FA1
Elettrodo
A/R
MP
JP2 - JP1
To terminate calibration without memorising the set values either:
a) set the function selector to (OFF-unblock)
b) turn off the power supply.
Calibration is completed automatically, without memorising the
minimum or maximum values, 15 minutes after activation.
The function is also terminated automatically in the event
of a shutdown or permanent block. Again, values are NOT
memorised.
NOTE:
to calibrate only the maximum heating value, remove jumper
JP2 (to memorise the maximum value) and then exit the function
without memorising the minimum value by setting the function selector
to OFF or by turning the boiler off at the mains.
After any intervention on the gas valve adjustment component,
seal with sealing paint.
4.9
Converting from one gas type to another
The boiler is supplied to operate with natural gas according to the
specifications on the technical data plate.
However, it may be converted from one type of gas to another by using
the special kits available on request.
- Natural gas conversion kit
- LPG conversion kit