- 34
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GAS VALVE ADJUSTMENT MULTIBLOC GB-E 055
ADJUSTING START-UP GAS DELIVERY
Connect the pressure gauge to the pressure connector nipples at inlet 4
and outlet 3. Loosen the regulator by turning the main gas adjuster screw
2 anti-clockwise (when the regulator is loosened you will hear a click as
you turn the adjustment screw).
Start up the gas unit. Adjust start-up gas delivery via the start-up gas
adjustment screw 1. Turning clockwise increases delivery. Turning anti-
clockwise decreases delivery.
ADJUSTING MAIN GAS DELIVERY
Connect the pressure gauge to the pressure connector nipples at inlet 4
and outlet 3. Start up the gas unit. Burner delivery must be adjusted by
means of the main gas adjustment screw 2. Turning clockwise increases
delivery. Turning anti-clockwise decreases delivery.
CHECKING THE QUANTITY OF GAS AT IGNITION
To check the quantity of gas at ignition, apply the following formula:
Ts x Qs
≤
100
where
Ts
= Safety time in seconds
Qs
= Energy freed in safety time expressed in kW
The
Qs
value is obtained from:
where
Q1
= delivery expressed in liters freed in no. 10 startups in safety time.
Ts1
= total safety time of 10 startups
Qn
=
Rated
output
To obtain
Q1
, proceed as follows:
- Detach the lead from the control electrode (ionization electrode).
- Read the gas meter before the test.
- Perform 10 burner startups; these correspond to 10 safety lock-outs. Read the gas meter again; by subtracting the first
reading, the
Q1
value is obtained.
Example:
First reading
00006,682 liters
Final reading
00006,947 liters
total
Q1
00000,265 liters
- By performing these operations, we can find
Ts1
by timing no. 1 startup (safety lock-outs) by the no. of startups.
Example:
Actual safety time = 1”95
Ts1
= 1”95 x 10 = 19”5
- If, at the end of this checkup, the value is above 100, regulate the opening speed of the main valve.
4
1
3
2
GB-E 055
GAS INLET
1 Start-up gas adjustment
2 Main gas adjustment
3 Pressure connector at outlet
4 Pressure connector at inlet
Summary of Contents for EM 3 ST-E
Page 2: ......
Page 21: ...21 ITALIANO...
Page 39: ...39 ENGLISH...
Page 57: ...57 FRAN AIS...
Page 75: ...75 DEUTSCH...
Page 93: ...93 ESPA OL...
Page 100: ...100 EM 6 ST E GB E 055 1 2 Pi mbar fi Pi fi Pt 2 4 3 4 fi 1...
Page 101: ...101 fi A fi B fi C D EM 6N ST E EM 3 ST E fi fi fi fi fi fi fi fi fi fi fi fi...
Page 104: ...104 3 sec 3 sec LME fi fi fi fi fi fi fi fi fi fi fi fi fi 10...
Page 110: ...110 1 A B A B 2 fi A B C A B C fi 3 fi A fi fi A...
Page 111: ......