Viessmann VITOCROSSAL 200 CM2 Service Instructions For Contractors page 71

Keyword index
A
Air pressure switch
– Combustion chamber pressure monitoring (LDW2)58
– Fan pressure monitoring (LDW1)............................58
B
Boiler, opening........................................................... 10
Boiler door
– Gaskets................................................................... 25
– Opening...................................................................24
Boiler water requirements.......................................... 64
Burner
– Cleaning.................................................................. 28
Burner control unit
– Display and programming unit................................ 34
– Flow diagram...........................................................38
Burner gauze assembly check................................... 26
C
CO2 content, checking...............................................21
CO2 test
– At the lower heating output..................................... 22
– At upper heating output...........................................22
– Preparation..............................................................21
Codes at the control unit, adjusting............................33
Combustion chamber, cleaning..................................24
Component overview................................................. 57
Condensate drain.......................................................26
Condensate drain system.......................................... 25
Connection diagram
– Burner control unit...................................................59
– Mains filter unit........................................................ 61
Conversion
– LPG P......................................................................14
– Natural gas LL.........................................................13
D
Diagnosis table...........................................................40
Display and programming unit
– Configuration display...............................................35
– Information display.................................................. 35
– Operating display.............................................. 34, 40
– Service indicator......................................................37
E
Expansion vessel....................................................... 32
F
Fan
– Fitting...................................................................... 28
Fault code.................................................................. 40
Fault memory............................................................. 40
Faults without fault display......................................... 45
Final checks, performing............................................ 31
Flow pressure check.................................................. 17
G
Gaskets and thermal insulation sections, checking... 25
Gas restrictor..............................................................68
Gas side connections, checking.................................31
Gas train valves, checking......................................... 30
Gas type check.......................................................... 12
H
Heating surfaces, cleaning.........................................24
Heating water side connections, checking................. 25
I
Ignition electrodes, checking......................................28
Internal system faults................................................. 43
Ionisation current display........................................... 23
Ionisation electrode, checking....................................28
L
LPG settings on burner control unit............................14
M
Manufacturer's certificate........................................... 70
Mixer, checking.......................................................... 32
N
Neutralising system....................................................26
O
Operating parameters, changing................................36
– Maximum operational output...................................36
Operating parameters, resetting................................ 37
Operational output reduction................................16, 36
Overview of steps.........................................................8
P
Packaging disposal...................................................... 5
R
Report
– Settings and test values.......................................... 62
– Water quality........................................................... 62
Reports.......................................................................62
Restrictor installation (for LPG P)...............................14
Rotary damper........................................................... 60
S
Servomotor.................................................................60
Setting check
– High limit safety cut-out...........................................10
– Rotary damper........................................................ 18
Settings and test values............................................. 62
Specification...............................................................66
Static pressure check.................................................17
Supply pressure check...............................................17
System
– Commissioning........................................................15
– Filling with water and venting.................................. 10
System pressure, checking........................................ 32
T
Trap, filling..................................................................10
Keyword index
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