SECTION 10: C
OMMISSIONING
45 of 85
10.5.1 Main Gas Valves
Refer to the rela
v
ant Ecoflam b
u
rner and gas train
installation man
u
als s
u
pplied
w
ith yo
u
r heater for the
position of the b
u
rner press
u
re reg
u
lator. This m
u
st
be
u
sed to set the b
u
rner press
u
re indicated in the
data tables in
Section 4
.
For t
w
o-stage, the D
u
ngs gas
v
al
v
e, please refer to
the b
u
rner man
u
fact
u
rer's instr
u
ctions for setting the
controls.
10.5.2 Throu
g
hput Adjuster
These
v
al
v
es ha
v
e a thro
u
ghp
u
t adj
u
ster fitted to the
second main gas
v
al
v
e. Refer to the rela
v
ant
Ecoflam b
u
rner and gas train installation man
u
als,
s
u
pplied
w
ith yo
u
r heater. When replacing a gas
v
al
v
e, ens
u
re that this de
v
ice is set in the f
u
lly open
position by releasing the locking scre
w
and t
u
rning
the "V MAX" f
u
lly co
u
nterclock
w
ise to
w
ards the "+"
and then retightening the locking scre
w
.
10.5.3 Rate of Openin
g
This de
v
ice is a hydra
u
lic damper
w
hich slo
w
s do
w
n
the rate of opening of the second main gas
v
al
v
e to
gi
v
e a smooth main gas ignition. This is preset at the
factory at the slo
w
est setting and
w
ill need no f
u
rther
adj
u
stment. If a ne
w
v
al
v
e is fitted, then remo
v
e the
plastic scre
w
on top and
w
ith a small scre
w
dri
v
er
t
u
rn the "V Start" scre
w
f
u
lly clock
w
ise to
w
ards the
"-" and refit the plastic co
v
er.
10.6 Combustion Testin
g
(all models)
Comb
u
stion q
u
ality m
u
st be tested to pro
v
e correct
heater operation. Incorrect res
u
lts
w
ill indicate fa
u
lts
w
ith the installation or appliance.
Comb
u
stion testing m
u
st be carried o
u
t
w
ith all
co
v
ers in place. The fl
u
e gas is sampled in the fl
u
e,
w
ithin 1 meter of the heater. The
v
al
u
es of CO2
sho
u
ld be bet
w
een 9.5% and 10.0% for nat
u
ral gas
and 11% for LPG, depending
u
pon the model.
The CO
w
ill be
u
p to 80 ppm (0.008%) dry, air free,
depending
u
pon the model. Temperat
u
re rise of the
fl
u
e gases abo
v
e ambient sho
u
ld be approximately
160°C to 180°C. Seal the sample test hole in the fl
u
e
after testing.
To alter comb
u
stion performance, open/close the
comb
u
stion air damper to red
u
ce or increase these
v
al
u
es. Once adj
u
sted to the optim
u
m comb
u
stion
setting, lock the air damper into position.
Repeat the steps
on Page 42, Section 10.2.3
.
10.6.1 Pressure Switch
Settin
g
of the pressure switch must only be
carried out as part of a complete commission
which includes combustion testin
g
. For
adjustin
g
the air pressure switch, see Ecoflam
instructions.
10.6.2 Complete the Commissionin
g
Ens
u
re that all co
v
ers are fitted correctly and all test
points are properly sealed.
10.7 Commissionin
g
the Burner (Oil Heaters)
Check all
v
al
v
es bet
w
een the f
u
el tank and the
heater are open, incl
u
ding the fire
v
al
v
e.
Ens
u
re that oil is a
v
ailable at the heater inlet and
that the air has been
v
ented from the f
u
el pipe
installation. Vent the air by opening the bleed scre
w
on top of the f
u
el filter. On press
u
rised systems,
check that the installation is r
u
nning at the correct
press
u
re. B.M. oil lifters
w
ill need priming.
10.7.1 Burner Settin
g
s
Ens
u
re that the b
u
rner head and air damper settings
are adj
u
sted for the correct b
u
rner and that the
correct atomising nozzle is fitted.
See Page 13,
Section 4.7
and the b
u
rner reference n
u
mber on the
data plate.
10.7.2 Preparation for Burner Pressure Test
Attach a press
u
re ga
u
ge 0-15 BAR (0 - 200 psi) to
the b
u
rner p
u
mp press
u
re test port. (See
man
u
fact
u
rer's information). A test manifold gi
v
es
yo
u
the facility for the connection of the press
u
re
ga
u
ge and the
v
enting of the p
u
mp.
10.
8
Control - Oil-Fired Heaters
For High/Lo
w
oil b
u
rners, follo
w
the general
seq
u
ence as described belo
w
and also ha
v
e extra
f
u
nctional stages related to air damper positions.
Refer to the b
u
rner man
u
fact
u
rer’s instr
u
ctions for
f
u
rther detail.
10.
8
.1 Description of Oil Fired Heater Control
The oil fired b
u
rners fitted to the heater are
controlled by a f
u
lly a
u
tomatic control and
photoelectric flame monitor
u
nit. This control
ens
u
res the safe start, ignition and stop seq
u
ence
and also monitors the flame. If the flame sho
u
ld fail
the control
w
ill go into "locko
u
t". The b
u
tton on ther
front of the control
w
ill ill
u
minate to indicate locko
u
t.
Press the b
u
tton to reset the control to restart the
b
u
rner firing cycle.
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Страница 65: ...SECTION 14 TROUBLESHOOTING 59 of 85 14 3 Troubleshooting for Gas Burners see manufacturer s instructions ...
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