Glow-worm Compact 24c-AS/1 H-GB, Инструкция по установке и обслуживанию, Страница: 35 / 56

Inspection and maintenance 12
0020289288_02 MicraCom Installation and maintenance instructions
35
–
Tightening torque: 6 Nm, if a torque spanner is
available
4. Reconnect the earth cable (3) to the ignition electrode.
5. Reconnect the plug (5) to the gas valve assembly.
6. Reconnect the plug (4) to the ignition device.
7. Screw the union nut (6) back onto the gas valve as-
sembly with a new seal.
8. Connect the gas pipe using a new seal.
9. Open the gas stopcock.
10. Check the product for tightness. (
→
Page 29)
11. Check the gas connection pressure/gas flow pressure.
(
→
Page 26)
12.4.6 Checking the ignition electrode
1
2
3
4
1. Remove the earth cable (1) .
2. Remove the fixing screws (2) .
3. Carefully remove the electrode (4) from the combustion
chamber.
4. Ensure that the electrode ends are undamaged.
5. Clean and check the gap between the electrodes.
–
Clearance for the ignition electrodes: 4.5
±
0.5 mm
6. Replace the seal (3) .
7. Install the electrode. To do this, proceed in reverse or-
der.
12.4.7 Checking and cleaning the restrictor for the
reference pressure pipe
Ø 0.23
D
65
150
A
B
C
E
1
2
3
1. Remove the restrictor for the reference pressure pipe
(1) , as shown in the figure
→
(A) to (D) .
2. Ensure that the hole for the restrictor for the reference
pressure pipe
(1) is not blocked (E) .
Result:
Hole for the restrictor for the reference pressure pipe is
blocked
▶
Clean the hole by blowing it out using compressed
air.
3. Ensure that the reference pressure pipes (2) and (3) are
not blocked.
Result:
Reference pressure pipes blocked
▶
Clean the reference pressure pipes by blowing them
out using compressed air.
4. Install the unit in reverse order and, in doing so, ensure
that you do not mix up the reference pressure pipes.
–
Observe the illustrated instructions.
12.4.8 Checking the pre-charge pressure of the
expansion vessel
1. Drain the product. (
→
Page 37)
1
2. Check the pre-charge pressure of the expansion vessel
at the expansion vessel valve
(1) .
–
Working materials: U tube manometer