Accorroni MEC25-85 Technical Information page 5

11.4 Shutdown .............................................................................................................................. 39
11.5 Summer ventilation ................................................................................................................ 40
12. PLANT MAINTENANCE ........................................................................................................ 40
12.1 Routine maintenance to be performed by the user ................................................................ 40
12.2 Annual air heater inspection .................................................................................................. 40
Fig. no. ....................................................................................................................................... page
1 Dimensions ....................................................................... - MEC 25 - 30 - 35 ......................... 7
2 Dimensions ....................................................................... - MEC 50 - 57 ................................ 8
3 Dimensions ....................................................................... - MEC 85 ....................................... 9
4 Dimensions ....................................................................... - MEC C 25 - 30 - 35 ................... 10
5 Dimensions ....................................................................... - MEC C 50 - 57 .......................... 11
6 Dimensions ....................................................................... - MEC C 85 ................................. 12
7 Exploded view .................................................................. - Models 25 - 30 - 35 ................... 13
8 Exploded view .................................................................. - Models 50 - 57 .......................... 14
9 Exploded view .................................................................. - Model 85 ................................... 15
10 Wiring diagram ...................................................................................................................... 17
11 Control device ....................................................................................................................... 19
12 Gas unit ............................................................................ - Models 25 - 30 - 35 ................... 19
13 Gas unit ............................................................................ - Models 50 - 57 - 85 ................... 19
14 Differential pressure switch ................................................................................................... 19
15 Fan thermostat ...................................................................................................................... 20
16 Safety thermostat .................................................................................................................. 20
17 Position indications ................................................................................................................ 22
18 Minimum distances ................................................................................................................ 23
19 Type C installation ............................................................................................................... 24
12
20 Type C installation ............................................................................................................... 24
52
21 Type B installation ............................................................................................................... 24
22
22 Connection of different units to one timer .............................................................................. 26
23 Remote-control panel ............................................................................................................ 27
24 Gas injector replacement .................................................. - Models 25 - 30 - 35 ................... 28
25 Gas injector replacement .................................................. - Models 50 - 57 .......................... 29
26 Gas injector replacement .................................................. - Model 85 ................................... 29
27 Gas injector installation ......................................................................................................... 30
28 Control equipment replacement ............................................................................................. 33
29 Gas unit coil replacement ................................................. - Models 25 - 30 - 35 ................... 33
30 Gas unit coil replacement ................................................. - Models 50 - 57 - 85 ................... 33
31 Pressure switch replacement ................................................................................................. 34
32 Fan thermostat replacement .................................................................................................. 34
33 Safety thermostat replacement .............................................................................................. 34
34 Electrode positioning ........................................................ - Models 25 - 30 - 35 ................... 34
35 Electrode positioning ........................................................ - Models 50 - 57 .......................... 35
36 Electrode positioning ........................................................ - Model 85 ................................... 35
37 Ignition transformer replacement - 2nd burner .................. - Model 85 ................................... 35
38 Flue exhaust replacement ................................................. - Models 25 - 30 - 35 - 50 - 57 ..... 35
39 Flue exhaust replacement ................................................. - Model 85 ................................... 36
40 Fan replacement ............................................................... - MEC .......................................... 36
41 Fan replacement ............................................................... - MEC C ...................................... 36
42 Cleaning the exchanger ......................................................................................................... 37
43 Remote-control panel ............................................................................................................ 39
FIGURE SUMMARY
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