Viessmann CM2 186 Technical Data Manual Download Page 10

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5608 012 v1.1

Vitocrossal 200 CM2 Technical Data

Cylinder Radiant Burner

(continued)

Specifications

CM2 pre-mix cylinder burner 186/246/311

Legend

Boiler door

Air pressure switch 1

Fan

Burner display and programming unit

Gas valve with gas pressure switch

Gas supply pipe

Burner test firing valve

Cylinder burner assembly

Ignition electrodes

Note:

Solenoid valve (choke valve) for CM2 model 186

(not shown).

Ionization electrode

Gas pipe

AC-EMI suppresion filter device

Ignition unit

Thermal insulation block

Manual shut-off valve

Venturi mixing pipe

Air pressure switch 2

Burner control sub-base

Servomotor and burner inlet damper (for models 246 / 311)

Summary of Contents for CM2 186

Page 1: ...er with pre mix modulating cylinder burner for natural gas or liquid propane gas with Inox Crossal heat exchanger made of high grade SA 240 316 Ti stainless steel For operation without low limit on boiler return water temperature For closed loop hot water heating systems with maximum supply water temperatures of 210 F 99 C for a maximum operating pressure of 75 psig Heating input 663 to 1112 MBH 1...

Page 2: ...nation of wiring mistakes with Viessmann prewired plug in system Heating boiler heating system control domestic hot water storage tank and all other Viessmann system technology components are coordinated to one another All components are design matched for quick installation Pre mix cylinder burner for environmentally friendly operation with a modulation range from 20 to 100 All hydronic connectio...

Page 3: ...al heat exchanger surface made from high grade SA 240 316 Ti stainless steel B Highly effective thermal insulation C Water cooled stainless steel combustion chamber D Wide water passageways with low pressure drop good natural circulation E Fully modulating pre mix cylinder burner F Vitotronic control unit ...

Page 4: ...6b 36b including insulation mm 930 930 930 Overall height a in 66 66 66 including control unit mm 1676 1676 1676 Concrete boiler base Length in 40 40 40 mm 1005 1005 1005 Width in 31 31 31 mm 800 800 800 Thickness in 4 4 4 mm 100 100 100 Weight Boiler body lb 503 536 564 Kg 228 243 256 Complete with the burner control lb 726 759 792 and thermal insulation Kg 329 344 359 Note For high altitude inst...

Page 5: ...b 2b 2b ANSI flanges mm 65 65 65 Safety Supply in 1a 1a 1a mm 32 32 32 Boiler Drain in 1 1 1 Condensate Drain in c c c Vent pipe Internal Diameter in 8 8 8 mm 201 201 201 Flue Gas Values temperature at a return temperature of 86 F 30 C at rated input F 136 132 130 C 58 55 54 at partial load F 95 95 95 C 35 35 35 Temperature at a return temperature of 140 F 60 C at rated input F 167 167 167 C 75 75...

Page 6: ... e in mm 73 1852 73 1852 73 1852 f flue pipe projection at the back in mm 3 75 3 75 3 75 g in mm 59 1500 59 1500 59 1500 h foot length in mm 39b 1005 39b 1005 39b 1005 i distance from front face of the cover to the front supporting foot in mm 12c 323 12c 323 12c 323 k in mm 53c 1365 53c 1365 53c 1365 l distance from the front face of the cover to the centre of the the boiler supply connection in m...

Page 7: ... Flue As per vent manufacturer s specifications Front 0 Floor combustible Legend A Boiler B Burner 1 Can be zero clearance if serviceability and burner swing position is not required 2 Clearance for vent pipe installation To enable convenient installation and maintenance observe the stated clearance dimensions Maintain the minimum clearances where space is tight In the delivered condition the boil...

Page 8: ...0 is only suitable for fully pumped hot water heating systems Recommended Flow Rates CM2 Boiler model 186 246 311 20 F rt GPM 63 84 106 40 F rt GPM 31 42 53 11 C rt m3 h 14 3 19 07 24 07 22 C rt m3 h 7 04 9 53 12 04 rt temperature difference This boiler does not require a flow switch w c mbar m3 h GPM Pressure drop Flow rate ...

Page 9: ...sions Length in mm 30 3 770 30 3 770 30 3 770 Width in mm 21 5 546 21 5 546 21 5 546 Height in mm 18 9 482 18 9 482 18 9 482 Weight Burner only Burner package with kits flanges and mounting hardware lb kg lb kg 61 0 27 6 93 42 2 64 5 29 3 100 5 45 5 64 5 29 3 100 5 45 5 Min gas supply pressure Natural gas w c 4 4 4 Liquid propane gas w c 10 10 10 Max gas supply pressure Natural gas w c 14 14 14 Li...

Page 10: ... with gas pressure switch F Gas supply pipe G Burner test firing valve H Cylinder burner assembly I Ignition electrodes Note Solenoid valve choke valve for CM2 model 186 not shown J Ionization electrode K Gas pipe L AC EMI suppresion filter device M Ignition unit N Thermal insulation block O Manual shut off valve P Venturi mixing pipe Q Air pressure switch 2 R Burner control sub base S Servomotor ...

Page 11: ...esigned and manufactured by Viessmann to suit any customer s specific requirements Custom control panels can have features such as pool heating hot tub heating snow melting telephone tie in integration with Building Management Systems as well as several other functions Please inquire For single boiler systems without Vitocontrol control panel Vitotronic 100 type GC1 for constant boiler water tempe...

Page 12: ...aining copper or black iron for pipes connectors etc Install a P trap in the condensate drain to prevent flue gases from escaping Specifications Venting options PP s Polypropylene flue gas fresh air system for room air independent operation sealed combustion and PP s flue gas for room air dependent operation are tested to ANSI Z21 13 CSA 4 9 2000 standards and are certified together with the Vitoc...

Page 13: ...supply water temperature Warranty Our warranty does not cover damages resulting from the following Operation with contaminated fill and supplementary feed water Operation with contaminated combustion air Exposing the boiler to pressures and temperatures higher than its certified rating See warranty sheet for details Use ULC S 636 UL 1738 certified for category IV boilers The following vent system ...

Page 14: ...ibration transmission to the building Specifications Water quality Treatment for boiler feed water should be considered in areas with known problems such as where a high mineral content and hardness exist In areas where freezing might occur it recommended that an antifreeze be added to the system water for protection against freezing Please adhere to the specifications given by the antifreeze manu...

Page 15: ...15 5608 012 v1 1Vitocrossal 200 CM2 Technical Data ...

Page 16: ...16 5608 012 v1 0 Technical information subject to change without notice Printed on environmentally friendly recycled and recyclable paper ...

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