Sime DEWY 30/80, Руководство пользователя

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94
4.3 ADJUSTMENT
OF HEAT OUTPUT
FOR HEATING
To adjust boiler heat output for heating
purposes, i.e., modifying the setting made
at the factory which is approximately 17
kW, use a screwdriver to adjust the hea-
ting heat output trimmer (10 fig. 17).
To increase working pressure, turn the
trimmer clockwise; to reduce pressure,
turn the trimmer counterclockwise.
To determine boiler heat output setting,
check energy consumption by observing
the meter and then compare with the
values shown in
Tables 4 - 4/a - 4/b ; or
measure “air
∆
p” with a digital pressure
gauge connected up as shown in fig. 21.
Compare values with those shown in
Tables 4 - 4/a - 4/b .
Fig. 21
9 1 2
3
4
7 6
5
KEY
1
Gas pressure intake
2 Gas valve
3 Mixer intake (–)
4 Ventilator intake (+)
5 Nozzle
6 Fan
7 Air/gas mixer
9 Digital pressure gauge
0 30 20 10
∆
p aria mm H
2
O
P
o
tenza t
er
mica kW
25
20
10
15
50 40 60
5
30
50-30
°
C
35
70
80-60
° C
0 30 20 10
∆
p aria mm H
2
O
P
o
tenza t
er
mica kW
25
20
10
15
50 40 60
5
30
50-30
°
C
35
70
80-60
°
C
G20 G31
4.3.1 Diagram illustrating heat output in relation to “air
∆
p”
TABLE 4/a - G20
* Air
∆
p is measured during boiler operation using a differential pressure gauge connected to the ventilator intake.
** The gas consumptions refer to the calorific value at standard conditions at 15°C - 1013 mbar.
Variable heat output Air
∆
p* Gas consum.**
(80-60°C) (50-30°C) (80-60°C) (50-30°C) G20
kW kW mm H
2
O mm H
2
O m 3 /h st
29,3 32,0 63,8 66,4 3,17
22,9 25,0 45,0 45,0 2,48
16,1 17,6 25,0 25,0 1,75
10,4 11,4 8,4 9,2 1,14
TABLE 4/b - G31
Variable heat output Air
∆
p* Gas consum.**
(80-60°C) (50-30°C) (80-60°C) (50-30°C) G20
kW kW mm H
2
O mm H
2
O m 3 /h st
29,3 32,0 68,4 70,4 1,52
21,8 23,4 45,0 45,0 1,19
15,4 16,6 25,0 25,0 0,84
10,4 11,4 9,2 9,5 0,55
Fig. 22
Heat
out
out
(kW)
Air
∆
p mm H
2
O
Heat
out
out
(kW)
∆
p de aire mm H
2
O