Viessmann CM2 Service Instructions For Contractors Download Page 11

Page: 11 / 88

Secure the gas train (without restric-
tor

and without rubber cork gas-

ket

) with inserted O-ring

flange

; for this, replace the fac-

tory-fitted screws M 5 x 16 with
M 5 x 12 (see separate pack).

Tighten screws M 5 x 12 diago-
nally.
Torque: 1.5 Nm.

10.

Secure fitting

11.

Push compensation hose

on to

the gas train.

12.

Affix the enclosed label "Set to ..."
over existing label

13.

Start the burner (see page 13).

Danger

Escaping gas leads to a risk of
explosion.
Check all fittings for gas tight-
ness.

Please note

The use of leak detection spray
can lead to malfunctioning.
Leak detection spray must not
come into contact with electrical
contacts.

Converting to LPG P

Installing the restrictor

BCD

Close the gas shut-off valve.

Switch OFF the ON/OFF switch on
the control unit.

Switch OFF the mains isolator (out-
side the installation room) or isolate
the mains power and secure against
unintentional reconnection.

Undo fitting

from the gas supply

pipe.

Pull compensation hose

from

the gas train.

Release the gas train from flange

Commissioning, inspection, maintenance

Further details regarding the individual steps

(cont.)

5683 757 GB

Summary of Contents for CM2

Page 1: ...structions for contractors VIESMANN Vitocrossal 200 Type CM2 400 to 620 kW Gas condensing boiler with MatriX cylinder burner For applicability see the last page VITOCROSSAL 200 5683 757 GB 9 2012 Please keep safe ...

Page 2: ...n The system must be commissioned by the system installer or a qualified per son authorised by the installer This appliance has not been designed to be operated by individuals includ ing children with limited physical sen sory or mental capacities or who are lacking in the appropriate experience and or knowledge unless they are supervised by a person with responsi bility for their safety or were i...

Page 3: ...e the building If you smell flue gas Danger Flue gas can lead to life threat ening poisoning Shut down the heating system Ventilate boiler room Close all doors in the living space Working on the system Where gas is used as the fuel close the main gas shut off valve and safe guard it against unintentional reopen ing Isolate the system from the power sup ply e g at the separate fuse or a main switch...

Page 4: ... the system can compromise its function Installing non author ised components and making non approved modifications or conversions can compromise safety and may invalidate our warranty For replacements use only orig inal spare parts supplied or approved by Viessmann Safety instructions Safety instructions cont 5683 757 GB ...

Page 5: ... Burner control unit connection diagram 57 Connection diagram for mains filter unit 61 Component overview 63 Control unit Adjusting codes at the control unit 65 Parts lists Ordering parts 66 Overview of the assemblies 67 Boiler body assembly 68 Thermal insulation assembly 69 Cable kit assembly 70 Burner assembly 71 Report 74 Specification 79 Certificates Declaration of conformity for boiler 400 kW...

Page 6: ...6 Keyword index 84 Index Index cont 5683 757 GB ...

Page 7: ...10 Checking the rotary damper setting 18 11 Checking the CO2 content 19 12 Checking the CO content 13 Checking the flue gas temperature 14 Displaying the ionisation current 22 15 Shutting down the system 23 16 Opening the boiler door 26 17 Cleaning the combustion chamber and heating surfaces 27 18 Checking gaskets and thermal insulation parts 27 19 Checking all connections on the heating water sid...

Page 8: ...placing if required 30 Checking all gas connections for tightness 35 31 Implementing final checks 35 32 Checking the water quality 36 33 Checking the function of safety valves 34 Checking the expansion vessel and system pressure 36 35 Checking the mixer for ease of operation and leaks 37 36 Checking the thermal insulation for firm seating 37 Checking the ventilation air apertures in the installati...

Page 9: ...ter quality require ments on page 75 Filling the siphon with water 1 Undo four screws and from the back remove the centre and bottom back panels 2 Undo the siphon and fill with water otherwise flue gas may escape 3 Check that the condensate can drain freely 4 Refit the siphon Note The hose connection to the on site condensate system or to the neutral ising system must not be permitted to sag suppo...

Page 10: ...f required convert the burner to a different gas type in accordance with details provi ded by your gas supply utility see from page 10 3 Record the gas type in the report on page 74 Converting to natural gas LL not in a and c B C D EG F A 01 Close the gas shut off valve 02 Switch OFF the ON OFF switch on the control unit 03 Switch OFF the mains isolator out side the installation room or isolate th...

Page 11: ...ings for gas tight ness Please note The use of leak detection spray can lead to malfunctioning Leak detection spray must not come into contact with electrical contacts Converting to LPG P Installing the restrictor B C D EG F A 01 Close the gas shut off valve 02 Switch OFF the ON OFF switch on the control unit 03 Switch OFF the mains isolator out side the installation room or isolate the mains powe...

Page 12: ...etection spray must not come into contact with electrical contacts 13 Start the burner see page 13 LPG settings on the burner control unit C D E F 1 Press button S E for longer than 2 s flashes 2 Press button F until display C shows 6 under Service 3 Press button S E until display C shows 6 under Status 4 Press button F until display C shows 2 under Status and shows the current gas type under Serv...

Page 13: ...ystem Danger CO build up as a result of incor rect burner adjustment can have serious health implications Carry out a CO test before and after work on gas appliances Tightness test Gaskets on the boiler door and flue gas components can be checked with an inspection mirror during operation If required remove the thermal insula tion components Traces of condensate on the outside of the flue gas coll...

Page 14: ... D on the burner control unit Note The appliance can enter a fault state during commissioning if there is insufficient gas in the gas line the fault indicator on the control unit illu minates Purge the gas line again and reset the burner control unit If the fault persists the inlet strainer of the gas train may have become blocked by work carried out on the gas line Danger Escaping gas leads to a ...

Page 15: ...ton S E for longer than 2 s flashes 2 Press button F until display C shows 6 under Service 3 Press button S E In display C 6 appears under Status 4 Press button S E 1 will be dis played under Status in display C and the current value for the maxi mum operational output is shown in under Service 5 Press button F or D for the required maximum operational out put 6 Press button S E to confirm If appl...

Page 16: ...he control unit 2 Check the supply pressure flow pressure see table on page 17 Note The supply pressure flow pressure must be between 18 and 50 mbar for natural gas and between 42 5 and 57 5 mbar for LPG Nominal supply pressure for natural gas 20 mbar Nominal supply pressure for LPG 50 mbar The boiler is factory fitted with two gas pressure switches The gas pres sure switches are set to 10 mbar Fo...

Page 17: ...ttings emergen cy mode Notify your gas supply utility or LPG suppli er 18 to 50 mbar 42 5 to 57 5 mbar Commission the boiler Above 50 mbar Above 57 5 mbar Install a separate gas pressure governor with zero off upstream of the boiler system and regulate the pressure to 20 mbar for natural gas or 50 mbar for LPG Notify your gas supply utility or LPG suppli er Commissioning inspection maintenance Fur...

Page 18: ...tary damper window B must be fully opened and scale ring D on the air damper servomotor must be set to 0 relative to marking C 3 Check whether compensation cable A has been connected between the gas train and distributor pipe 4 Start the burner Commissioning inspection maintenance Further details regarding the individual steps cont 5683 757 GB ...

Page 19: ...Rated heating output Rated heat input Rotary damper setting Pmax 50 30 C Qmax Hi in kW in kW in 400 381 30 500 474 35 620 593 30 Checking the CO2 content Test preparations A B C D E F 1 Open the gas shut off valve 2 Start the burner with the emissions test switch on the control unit ena bled Commissioning inspection maintenance Further details regarding the individual steps cont 5683 757 GB ...

Page 20: ...Rated heating output Rated heat input Permissible CO2 content Pmax 50 30 C Qmax Hi Natural gas E and LL LPG P in kW in kW in in 400 381 8 8 0 2 10 5 0 2 500 474 620 593 3 If the CO2 content must be adjusted Remove cap B and turn setting screw A in small steps Allen key 3 mm until the CO2 content is within the specified range Turning clockwise CO2 content drops Turning anticlockwise CO2 con tent in...

Page 21: ...t A B C D E F 1 Press D until the service indicator has decremented to 0 lower heat ing output 2 Check the CO2 content at the flue pipe Commissioning inspection maintenance Further details regarding the individual steps cont 5683 757 GB ...

Page 22: ...rner control unit If the values do not match the permis sible CO2 content according to the tables on pages 20 and 22 repeat the steps for the upper and lower heating output 5 Hold down S E and D simulta neously for longer than 2 s The burner will change to the operating mode Displaying the ionisation current Note The ionisation current must be called up via the burner control unit It is not pos si...

Page 23: ...ce 11 Press S 5 will be displayed under Status 12 Press until 0 is shown under Service 13 Press S The operating display will be shown again Shutting down the system 1 Switch OFF the mains isolator or the power supply and safeguard against unauthorised reconnection Danger Mains voltage can be life threatening For maintenance work isolate the system from the power supply Commissioning inspection mai...

Page 24: ...d side of the boiler door remove the M 5 screw on the top front panel Unclip the profile studs from the side panels tilt the front panel forwards slightly and lift it away from the bot tom front panel Commissioning inspection maintenance Further details regarding the individual steps cont 5683 757 GB ...

Page 25: ...he side panels using the clips 4 To remove the side panel and top panel remove the M 6 screw one per panel on the top rail and on the bot tom support Commissioning inspection maintenance Further details regarding the individual steps cont 5683 757 GB ...

Page 26: ...pply pipe 2 Undo the six screws on the boiler door if necessary undo connecting cable plug in connections and open the boiler door Please note The boiler door can cause damage and injury if it swings shut After opening the boiler door take measures to prevent it from shutting Please note Scratches inside the combustion chamber can lead to corrosion Never put tools or other objects into the combust...

Page 27: ...n Remove soot deposits with alkaline cleaning agents with surfactant addi tives e g Fauch 600 Remove coatings and surface disco louration yellow brown with slightly acidic chloride free cleaning agents based on phosphoric acid e g Antox 75 E Remove loose deposits from the boiler flush the heating surfaces and the flue gas collector thoroughly with a water jet Cleaning agent manufacturer s details ...

Page 28: ...Only drain the boiler with a suc tion pump with the boiler air vent valve open Note Also check the connections to control equipment and to the minimum pressure switch low water indicator for leaks Cleaning and reconnecting the condensate drain system Note Clean the inside of the condensate drain system at least annually C D A B Commissioning inspection maintenance Further details regarding the ind...

Page 29: ...ipe again 6 Clean the neutralising system if installed in accordance with the manufacturer s instructions Neutralising system operating instructions Note You can obtain the neutralising agent from Viessmann quoting part no 9521 702 7 Release and flush lower part A of siphon B 8 Fill lower part A of siphon B with water and reassemble 9 Refit the condensate drain system and the back cover panel Note...

Page 30: ...ction mirror If required remove the thermal insulation components Traces of condensate on the outside of flue gas collector A or on thermal insulation components also indicate a leak 2 If required retighten flue gas collec tor A to a torque of 10 Nm Note We recommend you check the gas ket roughly every 500 hours run and possibly retighten the nuts and ensure that the gasket is correctly seated Com...

Page 31: ...lve A B 1 Undo fitting A from the gas supply pipe 2 Undo the screws on the boiler door and open the door 3 Check the metal gauze of burner gauze assembly B for damage 4 Replace burner gauze assembly B if required Danger Touching hot components can cause burns Only perform work on the burner when it has cooled down Please note Scratches inside the combustion chamber can lead to corrosion Never put ...

Page 32: ...nd flues see boiler service instructions Please note The combustion chamber may become contaminated if the burner gauze assembly is not replaced correctly Make sure that the combustion chamber is kept free of thermal insulation block fibres at all times Checking the ignition electrodes and ionisation electrode Ignition electrodes 8 5 1 7 1 5 6 1 Ionisation electrode 15 5 1 Check ignition electrode...

Page 33: ...g and impeller with compressed air 6 If required vacuum the inside and outside of burner gauze assembly F Fitting the fan A B C D 1 Fit fan D Note Ensure the gasket between the fan housing and the boiler door is cor rectly seated Replace the gasket if damaged 2 Plug connecting cables a Ö and a ÖA into the fan 3 Secure Venturi mixing pipe C with gas train A on fan D and plug in connecting cables if...

Page 34: ...s leads to come into contact with hot com ponents Secure all cables with cable ties if required 3A 3B 15A 15B 41 145 40 40 156 53 1 Plug burner cable fA and KM BUS cable aVG into the burner control unit 2 Insert control unit connecting cable fÖ aBH boiler sensor leads A B flue gas sensor lead aGA aGB and power cable fÖ on the burner side into the couplings on the mount ing plate 3 Plug control uni...

Page 35: ...isk of explosion Always carry out the following steps Please note The use of leak detection spray can lead to malfunctioning Leak detection spray must not come into contact with electrical contacts 1 Insert new gaskets in all gas fittings that have been opened and then tighten those fittings 2 Open the gas shut off valve 3 Check the inlet joints of the gas train for tightness 4 Start the burner se...

Page 36: ...r m3 m3 m3 dH dH The pH value should be between 8 2 and 9 5 Checking the expansion vessel and system pressure Note Please observe expansion vessel man ufacturer s instructions Carry out this test on a cold system 1 Drain the system until the pressure gauge indicates 0 or close the cap valve on the expansion vessel and reduce the pressure in the expansion vessel Commissioning inspection maintenance...

Page 37: ...e mixer for leaks Replace the O ring gaskets if the mixer is leak ing 4 Snap the motorised lever into place Instructing the system user The installer should instruct the user in the operation of the system Operating and service documents 1 Complete and detach the customer registration card Hand system users their section for safekeeping Retain the heating contractor s section 2 File all parts list...

Page 38: ...er approx 5 minutes if the air pressure is outside the per missible range during the pre purge phase tolerance time approx 5 minutes if the air pressure switch fails in regular operation or the air pressure lies out side the permissible range The fault shutdown is shown with fault indicators F F5 and F F7 on the burner control unit display see page 40 and can be reset by pressing reset button B Ra...

Page 39: ... under the following circumstances If the combustion chamber pressure is outside the permissible range in the pre purge phase in control mode or in the post purge phase after 2 attempts The fault shutdown is shown with fault indicator F FB on the burner control unit display see page 40 and can be reset by pressing reset button B Rated heating output Rated heat in put Setting value LDW2 Pmax 50 30 ...

Page 40: ...ur elements of 7 segments each Four keys enable adjustments to be made at the different operating levels Operating display In standard mode the status display shows the current operating conditions The same applies in a fault state after pressing reset button R The following displays are scrolled through automatically In case of faults see the fault codes from page 48 You can exit at any time by p...

Page 41: ...Service Fan ramp up Status Service Valve and or relay test Status Service Pre purge Status Service Pre ignition Status Service Ignition Safety time Flame established Status Service Flame stabilisation Burner control unit Burner control unit cont 5683 757 GB ...

Page 42: ...Status Service Maintenance program No gas pressure or mains undervoltage Status Service Forced ventilation when no flame was recognised Status Service Safety shutdown due to flame tear off Status Service Safety shutdown due to reaching maximum boiler water temperature Burner control unit Burner control unit cont 5683 757 GB ...

Page 43: ...he last 10 fault codes Example to delete the hours run meter press the following keys 1 S longer than 2 s flashes 2 until 2 is shown under Service 3 S 1 will be displayed under Sta tus 4 Scroll through Status until 6 is shown under Status Sta tus Description 1 Display of start up meter with reset 1 digit 2 Display of start up meter with reset 1000 digit 3 Menu point for deleting the start up meter...

Page 44: ...ion current I in 1 10 μA 4 Set speed 5 PWM manipulated variable 6 Actual speed n in 10 min 7 Gas pressure switch 1 0 or 1 8 Gas pressure switch 2 0 or 1 9 Air pressure switch 0 or 1 A Gas valve 1 0 or 1 B Gas valve 2 0 or 1 Example to display the ionisation cur rent press the following keys 1 S longer than 2 s flashes 2 until 5 is shown under Service 3 S 5 will be displayed under Sta tus 4 until 3...

Page 45: ...set all operating parame ters to their delivered condi tion Example to reduce the maximum opera tional output press the following keys 1 S longer than 2 s flashes 2 until 6 is shown under Serv ice 3 S 6 will be displayed under Sta tus 4 S 1 will be shown under Status and the current value for the maximum operational output in is shown under Service 5 for required maximum opera tional output Note O...

Page 46: ...e to the operating dis play Manual mode and service display The burner must be running to call up the service display and for manual mode The service display shows the current modulation level in Hold down the following keys 1 S simultaneously for longer than 2 s The burner changes to manual mode a P will be shown under Status and the current modulation level will flash under Service 2 for lower h...

Page 47: ...ol unit is reset Fault memory The ten most recent faults are saved and may be called up The order of scans ranges from the most recent to the earlier fault codes The fault memory display is terminated automatically if no key is pressed within 20 s Note If the burner does not start up due to a non lockout fault without displaying a fault code the fault memory may be able to indicate the cause To ca...

Page 48: ...ed order All fault codes are saved to the fault memory and the last 10 can be called up Displayed fault code System characteris tics Cause Measures F 80 Burner control unit in a fault state system cools down burner control unit locked out Short circuit boiler water temperature sensor burner control unit Check lead and dual sen sor replace sensor if re quired F 81 Burner control unit in a fault sta...

Page 49: ...l unit locked out Coding card not in serted in the burner control unit incor rect or faulty cod ing card Insert coding card check coding card replace if re quired F b7 Type of coding card Coding card does not match burner control unit Replace coding card or burner control unit I Danger Plug in terminals on the burner control unit are live Only replace the coding card when the power has been isolat...

Page 50: ...place burner control unit F EF Burner control unit in a fault state Internal error in feedback from gas safety valves out put relay does not respond Reset burner control unit replace burner control unit F F0 1 Emergency operation according to internal default Communication er ror KM BUS burner control unit Check the KM BUS cable plug for firm seating check all KM BUS cables F F1 Burner control uni...

Page 51: ...tion elec trode see page 32 F F4 No flame formation during safety time ionisation flame mon itor reports no flame signal Ignition electrodes incorrectly adjus ted electrodes earthed faulty igni tion unit faulty burner control unit Adjust ignition electrodes see page 32 replace ig nition unit replace burner control unit F F4 No flame formation during safety time ionisation flame mon itor reports no...

Page 52: ...ue gas back pressure conden sate banked up air pressure switch hose faulty con necting hose leak ing Remove flue gas back pressure check if con densate banked up reset burner control unit re place hose F F6 Gas pressure switch notifies no gas pres sure Gas shut off valve closed gas pres sure switch faulty multiple problems with gas supply Open gas shut off valve check gas flow pressure replace gas...

Page 53: ...es Check cable possibly re place cable a ÖA or fan F F9 No fan feedback Fan faulty external fan power supply not connected or faulty a ÖA or cable faulty or bro ken fan blocked poss by foreign bodies Check cable a ÖA check external power supply replace cable or fan remove foreign bod ies F FA Fan runs without de mand burner control unit in a fault state Fan does not reach idle state cable a ÖA fau...

Page 54: ...ue system Check condensate drain Incorrect flue outlet Check flue outlet and flue system Thermo acoustics combustion noise Incorrect CO2 settings insufficient or exces sive air Adjust burner in accordance with the details from page 19 CO2 content too low Incorrect setting Check whether the burner has been adjusted to the correct gas type Change gas restrictor if nec essary see from page 10 Adjust ...

Page 55: ...ure switch 1 Gas pressure switch 1 Air pressure switch 2 Fan speed Flame Demand Fuel valve BV2 Auxiliary valve Servomotor Flue gas damper Ignition Fan Fuel valve BV1 Fault message output 3 Input assessment Output control Subsequent state depends on valve test parameters 1 2 4 5 6 8 U System start Relay test Start up Op mode Shutdown Fault states F 7 C Waiting Burner control unit flow chart Burner ...

Page 56: ...mperature sensor test max 20 s 2 Fan ramp up max 20 s 3 Pre purge 10 s Adjusting start up load test WD 1 1 9 s 4 Pre ignition 2 s 5 Ignition safety time 2 3 s Flame detection safety time max 0 51 s Operation 6 Flame stabilising time 15 s 7 Start up partial load 20 s Modulating operation 0 to 24 h Adjusting shutdown load 0 1 s Shutdown 8 Reheat test WD 2 min 10 s max 60 s Fan ramp up post purge max...

Page 57: ... Q R S A Burner control unit VUC 310 H Fan motor with PWM control and feedback K Gas pressure switch 2 L Air pressure switch 1 M Gas pressure switch 1 Connection diagrams Burner control unit connection diagram 5683 757 GB ...

Page 58: ...gas temperature sensor 2 Q Flue gas temperature sensor 1 R Boiler water temperature sensor 2 S Boiler water temperature sensor 1 T Display and programming unit Connection diagrams Burner control unit connection diagram cont 5683 757 GB ...

Page 59: ...nit VUC 310 B Flame monitoring via an ionisation current C Vitotronic control unit D Servomotor for rotary damper E Ignition unit F Fuel valve BV1 G Fuel valve BV2 Connection diagrams Burner control unit connection diagram cont 5683 757 GB ...

Page 60: ...60 X Plug 150 STB STB F1 Backup fuse F2 Backup fuse H1 Hours run meter modulation H2 Fault message S1 ON OFF switch Connection diagrams Burner control unit connection diagram cont 5683 757 GB ...

Page 61: ...perature sensor D Boiler water temperature sen sor E Air pressure switch 2 a Ö To the fan fÖ Power supply 230 V 50 Hz fÖ aBH Control unit gD Flue gas damper to a Ö burner control unit Connection diagrams Connection diagram for mains filter unit 5683 757 GB ...

Page 62: ...te The power cable must be protected The maximum fuse rating is 16 A Make the power supply 230 V 50 Hz via a permanent connection Connection diagrams Connection diagram for mains filter unit cont 5683 757 GB ...

Page 63: ...witch 1 C Air pressure switch 2 D Display and programming unit E Gas train F Gas supply pipe G Gas pressure switch H Rotary damper with servomotor K Venturi mixing pipe L Gas fan M Burner gauze assembly N Ignition electrodes Component overview Component overview 5683 757 GB ...

Page 64: ...64 O Ionisation electrode P Ignition unit R Burner control unit S Mains filter unit with contactor Component overview Component overview cont 5683 757 GB ...

Page 65: ...65 Vitotronic service instructions Control unit Adjusting codes at the control unit 5683 757 GB ...

Page 66: ...quired Serial no see type plate A Assembly from this parts list Position number of the individual part within the assembly from this parts list Standard parts are available from your local supplier Parts lists Ordering parts 5683 757 GB ...

Page 67: ...1 Boiler body assembly 0002 Thermal insulation assembly 0003 Cable kit assembly see page 70 Unnumbered Burner assembly see page 71 For burner serial no see burner type plate A see page 73 Parts lists Overview of the assemblies 5683 757 GB ...

Page 68: ...th gasket 0002 Stench trap 0003 Sensor well G 1 2 l 150 mm with clip 0004 Flue gas temperature sensor D 3 x 37 0005 Flue gas system collar 0006 Boiler door 0007 Bolts 12 H11 x 85 x 80 0008 Foot screws 0009 Mounting bracket 0010 Flue gas cover gasket 0011 Insulation block and mat 0012 Packing GF 0010 0012 0011 0009 0010 0004 0005 0001 0002 0008 0007 0009 0003 0012 0006 0011 Parts lists Overview of ...

Page 69: ...panel bottom 0015 Front panel top 0016 Tie bar 0017 Cover panel 0018 Top panel centre 0019 Top panel front 0020 Top panel left back 0021 Top panel right back 0022 Thermal insulation mat front 0023 Thermal insulation jacket 0024 Edge protector 0025 Mounting bracket back 0026 Mounting bracket 0027 Mounting bracket fascia 0028 Channel retainer 0029 Cable channel FB 60 x 150 lower section 0030 Cable c...

Page 70: ...0005 0003 0007 0011 0012 0013 0019 0017 0020 0021 Cable kit assembly 0001 Connecting lead for boiler water temperature sensor A B 0002 Burner cable fA 0003 KM BUS cable aVG 0004 Power cable fÖ 0005 Cable fÖ aBH 0006 Connecting lead for flue gas tem perature sensor aGA aGB Parts lists Thermal insulation assembly cont 5683 757 GB ...

Page 71: ... parts 0003 Burner gauze assembly wearing part 0004 Burner gauze assembly gasket wearing part 0005 Ignition electrodes with O rings wearing part 0006 Ignition cable 0007 Ignition transformer 0008 Ionisation electrode with O ring wearing part Parts lists Cable kit assembly cont 5683 757 GB ...

Page 72: ...sation set for 400 kW 0024 Gas pressure switch connecting cable 0025 Mains filter unit 0026 Contactor 0027 Flange gasket wearing part 0028 Installation instructions 0029 Service instructions 0030 Connecting cable gF for ignition transformer 0031 Servomotor connecting cable 0032 Connecting cable aYA for gas pressure switch 0033 Connecting cable dG for gas valve 0034 Connecting cable a Ö for fan 003...

Page 73: ...6 0025 0026 0007 0010 0011 0012 0006 0005 0008 0015 0014 0021 0019 0001 0027 0004 0003 0009 0020 0018 0013 0016 0017 0028 0029 0002 0034 0030 0033 0031 0032 0024 0035 0023 A Parts lists Burner assembly cont 5683 757 GB ...

Page 74: ...ctual by vol set by vol at the lower rated heating output actual by vol set by vol Oxygen content O2 at the upper rated heating output actual by vol set by vol at the lower rated heating output actual by vol set by vol Carbon monoxide content CO actual ppm set ppm Flue gas tempera ture gross actual C set C Ionisation current at the upper rated heating output μA at the lower rated heating output μA...

Page 75: ... 600 1 5 8 4 600 0 02 0 11 The standard values assume the follow ing The total volume of fill and top up water during the service life of the sys tem will not exceed three times the water content of the heating system The specific system volume is less than 20 l kW heating output In multi boiler systems apply the output of the smallest boiler All measures to prevent corrosion on the water side in ...

Page 76: ... observe the follow ing during commissioning Commission the system step by step starting with the lowest boiler output and a high heating water flow rate This prevents local concentration of limescale deposits on the heat exchanger of the boiler In multi boiler systems start all boilers simultaneously to prevent the entire limescale deposit settling in the heat transfer area of just one boiler Whe...

Page 77: ... system if correctly sized and operating at the cor rect pressure At all points in the heating system including on the intake side of the pump and in all operating states the pressure must be higher than the pres sure of the surrounding atmosphere The pre charge pressure of the expansion vessel should be checked at least during the annual service The use of permea ble components e g plastic pipes ...

Page 78: ...ificate of suitability of the additives with regard to the boiler mate rials and the materials of the other heat ing system components We recom mend you refer questions regarding water treatment to an appropriate spe cialist For further details see the directive VDI 2035 2 and EN 14868 Water quality requirements cont 5683 757 GB ...

Page 79: ...l gas E m3 h 8 1 40 4 10 0 50 2 12 5 62 7 Natural gas LL m3 h 9 4 46 9 11 7 58 3 14 6 72 9 LPG P kg h 7 4 29 6 9 2 36 8 11 5 46 1 Burner type CM2 Voltage V 230 Frequency Hz 50 Power consumption W 69 576 66 655 74 835 Burner and control unit Modulation range 20 100 25 100 2 2 Only with LPG P 3 The connection values are only for reference e g in the gas contract application or to estimate the volume...

Page 80: ...l gas E and LPG P a a Rated heating output Rated heat input Dim a Pmax 50 30 C Qmax Hi Natural gas E G20 LPG P G31 in kW in kW in mm in mm 400 381 17 8 13 0 500 474 21 5 14 8 620 593 24 2 17 2 Specification Specification cont 5683 757 GB ...

Page 81: ...2 42 EEC 2004 108EC 2006 95 EC 2009 142 EC This product meets the requirements of the Efficiency Directive 92 42 EEC for con densing boilers The product characteristics determined as system values for the product Vitocrossal 200 type CM2 as part of EC type testing according to the Efficiency Directive can be used to assess the energy consumption of heating and ventilation equipment to DIN V 4701 1...

Page 82: ...14 2 In accordance with the following Directives this product is designated with _ 0085 2004 108EC 2006 95 EC 2009 142 EC The product characteristics determined as system values for the product Vitocrossal 200 type CM2 see specification table can be utilised to assess the energy consumption of heating and ventilation equipment to DIN V 4701 10 which is specified by the EnEV Germany This boiler mee...

Page 83: ...rman Immissions Order BImSchV Vitocrossal 200 type CM2 400 to 620 370 to 575 kW with MatriX cylinder burner NOx limits according to paragraph 6 1 Flue gas loss of no more than 9 according to paragraph 10 1 Allendorf 07 May 2012 Viessmann Werke GmbH Co KG Authorised signatory Manfred Sommer Certificates Manufacturer s certificate 5683 757 GB ...

Page 84: ...put 21 At upper heating output 20 Preparations 19 Codes at the control unit adjustment 65 Component overview 63 Condensate drain 31 Condensate drain system 28 Connection diagram Burner control unit 57 Mains filter unit 61 Conversion to LPG P 11 Converting to Natural gas LL 10 D Diagnosis table 48 Display and programming unit Configuration display 43 Fault display 47 Information display 43 Operatin...

Page 85: ...tallation for LPG P 11 Rotary damper 59 S Servomotor 59 Setting check High limit safety cut out 9 Rotary damper 18 Siphon filling with water 9 Specification 79 Static pressure check 16 Supply pressure check 16 System Commissioning 13 Filling with water and venting 9 Shutting down 23 W Water quality Checking 36 Requirements 75 Keyword index Keyword index cont 5683 757 GB ...

Page 86: ...86 5683 757 GB ...

Page 87: ...87 5683 757 GB ...

Page 88: ...mann Limited Hortonwood 30 Telford Shropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5683 757 GB Subject to technical modifications ...

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Viessmann CM2, Service Instructions For Contractors

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