Sime MURELLE HE 12 BFT, Руководство пользователя

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90
ES
PT
GB
4.1 ADJUSTMENT OF
D.H.W. FLOW RATE
To adjust the D.H.W. flow rate, use the flow
rate adjuster (5 fig. 4).
Remember that the flow rates and corre-
sponding temperatures of use of hot water,
given in section 1.3, have been obtained by
positioning the selector of the circulation
pump on the maximum value.
Should there be any reduction in the
D.H.W. flow rate, the filter installed on the
inlet to the divertor valve (3 fig. 4) will
need cleaning.
4.2 GAS VALVE
The boiler is supplied as standard with a
gas valve, model SIT 848 SIGMA (Fig. 16).
4.3 GAS CONVERSION (fig. 17)
This operation must be performed by
authorised personnel using original Sime
components.
To convert from natural gas to LPG or vice
versa, perform the following operations
– Close the gas cock.
– Replace the nozzle (1) and the gasket (2)
using those supplied in the conversion kit.
– Test all the gas connection using soapy
water or special products. Do not use
open flames.
– Apply the nameplate with the new gas
flow layout.
– Calibrate the maximum and minimum
pressures of the gas valve following the
instructions provided in paragraph 4.3.2.
4.3.1 New fuel configuration
For access to the installer's parameters,
press simultaneously keys
and for
5 seconds (3 fig. 12).
The parameters will scroll up and down
with the keys
and . The display pane
will show the values of the parameter PAR
1. If the boiler is a
25 BF methane (G20)
model, SET 3 will be displayed:
To change the fuel to propane (G31), it is
necessary to set SET 9, by pressing the key
.
The standard display will automatically
return after 10 seconds.
The table below shows the SET settings to
enter when the type of gas fuel is changed.
4.3.2 Calibrating the gas valve
pressures
Measure the CO
2
values with a combustion
analyzer.
Sequence of operations:
1)
Press and hold the button down for a
few seconds
.
2) Press the button for a few seconds
.
3) Identify the CO
2
values at max. power by
adjusting the shutter (5 fig. 16):
4) Press the button for a few seconds
.
5) Identify the CO
2
values at min. power by
adjusting the OFF-SET regulation screw
(6 fig. 16):
6) Press the buttons several times to
check the pressures
and chan-
ge them if required.
7) Press the button once more to quit
the function.
Fig. 16
KEY
1
Upstream pressure intake
2 Intermediate pressure intake
3 Air signal inlet (VENT)
4 Downstream pressure intake
5 Capacity step
6 OFF-SET
4 USE AND MAINTENANCE
2
1
Fig. 17
MAX power
CO
2
(Methane) CO
2
(Propane)
9,0 ±0,3 10,0 ±0,3
MIN power
CO
2
(Methane) CO
2
(Propane)
9,0 ±0,3 10,0 ±0,3
1
2
3
4
5
6
GAS MODELS PAR 1
12 BFT 1
METHANE 20 BFT 2
(G20) 25 BF - BFT 3
30 BF - BFT 4
35 BF - BFT 5
12 BFT 6
20 BFT 7
- 8
PROPANE 25 BF - BFT 9
(G31) - 10
30 BF - BFT 11
35 BF - BFT 12
- -
- -
- -
- - -
- -
- -
- 26