Sime FORMAT DGT 30e - Dismantling the Casing; General Boiler Maintenance; Ignition;Detection Electrode Maintenance

31
press
1
2
3
4
until
appears.
Confirmthisvalueusing
1
2
3
4
or
1
2
3
4
.
Exittheparameterssectionby pressing
1
2
3
4
.
The table below gives the values to set
whenthesupplygasischanged:
6.4.2.2 Adjusting valve pressure
(fig. 24)
Setmaximumandminimumpressureon
gasvalvesasfollows(fig.24):
– Connect a manometer to the intake
downstream of the gas valve (4 fig.
22).
 Disconnect the valve VENT pressure
test point tube (5 fig. 22).
– Removethecap(1)fromthemodula-
tor.
- Puttheboilerinchimneysweepmode
(see section 6.4.4.2), ensure that ane
zonevalvesareopen.
– Pressthekey
1
2
3
4

(Hi).
- Turning the gas valve adjusters
clockwisewilldecreaseit.
- Adjust maximum pressure using the
nut(3)withawrenchtothemaximum
pressure valve indicated in Table 4
(fig.22).
– Adjust themaximumpressure before
adjustingtheminimum.
– Pressthekey
1
2
3
4
(Lo).
– Hold the nut (3) in place, turn the
screw (2)  to the minimum pressure
indicatedinTable 4.
– Alternatelypressthekeys
1
2
3
4
and
1
2
3
4
 and check that the maxi-
mumandminimum pressures corre-
spond to the set values; if necessary
readjust.
– Pressthekey
1
2
3
4
againtoquitthefun-
ction.
– RefitthevalveVENTpipe.
– Remove the manometer, remembe-
ring to tighten the screw for closing
thepressuretestpoint.
– Put the plastic cap (1) back on the
modulator. Check all test points and
connectionsforgastightness.
6.4.3 DISMANTLING
THE CASING (fig. 25)
The casing may be removed complete-
ly to facilitate boiler maintenance, as
showninfig. 25.Turn thepanel control
forwardforaccess totheinternal com-
ponentsoftheboiler.
6.4.4 MAINTENANCE
To guarantee functioning and efficien-
cy of the appliance, in respect of the
legal provisions in force, it must be
regularly checked; the frequency of the
checks depends on the type of instal-
lation and usage but this should be at
least annually.
Carry out the following procedure for
cleaningtheburner/heatexanger:
– Isolate the boilers electrical supply
andclosethegasisolationvalve.
– Removethe outercasingasshownin
fig.25;removethecombustioncham-
bercoverandtheburnercover.
– Idealyuseavacuumcleanerandasoft
brushtoremoveanydebris;takecare
nottodamagetheinsulationpanel.
- Clean the heat exchanger, removing
anydustorresiduefromcombustion.
- Whencleaning theheat exchangeror
theburner,chemicalproductsorsteel
brushesMUSTNOTBEUSED.
6.4.4.1 Ignition/Detection
electrode (fig. 27)
- Remove the casing, front panel and
sealedchambercovers.
- Unscrewthescrewsecuringtheelec-
trodeandremovefromtheburner.
- disconnecttheelectrodecable.
- Replacetheelectrodeandsetthegap
asshown.
3
2
1
Fig.24
KEY
1 Plastictap
2 Minimumpressureadjustingnut
3 Maximum pressure adjusting
nut
BOILER GAS MODELS PAR 1
  METHANE 30 02
 30 i 
 
 30 e
  LPG 30 04
1
2
4 x
Fig.25
Codice/Code 8109292
Modello/Model FORMAT DGT 30 i
Matricola/Serial n. 9999999999
PAR 1 = 02 (NG)/ 04 (LPG)
PAR 2 = 09
1
2
3
4
IGNITION/DETECTION
ELECTRODE
4±0,5
Fig.27