Viessmann VITOCROSSAL 200, CM2-400, CM2-500, CM2-620 Technical Data Manual
Technical Data Manual
Model Nos. and pricing : See Price List
VITOCROSSAL 200
Gas-fired Condensing Boiler
1445 to 2245 MBH (423 to 658 kW)
Product may not be exactly as illustrated.
Vitocrossal 200
CM2 Series 400, 500 and 620
High efficiency, gas-fired condensing boiler
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: 1445 to 2245 MBH
(423 to 658 kW)
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Please file in Service Binder
Product Information
Vitocrossal 200
Benefits at a glance:
Inox-Crossal heat exchanger surface made of high grade SA 240-316 Ti stainless steel for high
operational reliability and long service life.
- Easy dispersal of condensate through vertical gas
flues; therefore no concentration of condensate.
- Increased self-cleaning effect through smooth
stainless steel surfaces.
Highly efficient heat transfer and high condensation
rate through
- heat exchanger surfaces which intensely turbulate
the flue gas flow
- boiler water and hot gases flowing in counter flow.
Efficiency up to 98% through intensive condensation.
The flue gas temperature is only approximately 9-27° F
(5 - 15° C) above boiler return temperature (see chart
below).
Clean combustion - through perfect match of burner
and boiler, low combustion chamber loading and
straight-through combustion chamber.
Easy handling in boiler rooms through particularly low
build height and weight.
Vitocrossal 200, CM2-400, -500 and -620 Technical Data
Easy installation and elimination of wiring mistakes
with Viessmann pre-wired 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 connections can be fitted from above.
Economical and safe heating system operation
through Vitotronic digital control system with
communication capability. Tailored to every need,
covering all known control strategies and
applications.
Standard LON BUS for complete integration into
building management systems.
Particularly quiet operation.
High altitude operation up to 10,000 ft. (3000 m)
with a simple electronic adjustment.
Design
Supply / Return
104° F - 88° F
(40° C - 30° C)
Curve 0.5
Design
Supply / Return
167° F - 140° F
(75° C - 60° C)
Curve 1.4
Boiler Efficiency in %
Design
Supply / Return
194° F / 158° F
(90° C - 70° C)
Curve 1.8
System Partial Load in %
Vitocrossal 200 boiler efficiency dependent on system
heating water return temperatures and load conditions
Boiler Water/ Supply Temperature
Room
Set-Point
Temperature
Outdoor Temperature
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5773 596 v1.0
Vitocrossal 200, CM2-400, -500 and -620 Technical Data
Vitocrossal 200
Product Information
Flue gas temperature as a function of average partial load firings.
Legend
A Supply/return temperature of 176/140° F (80/60° C)
B Supply/return temperature of 158/122° F (70/50° C)
C Supply/return temperature of 140/104° F (60/40° C)
D Supply/return temperature of 122/86° F (50/30° C)
E Supply/return temperature of 104/68° F (40/20° C)
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Product Information
Cutaway Section
Vitocrossal 200, CM2-400, -500 and -620 Technical Data
Legend
A Stainless steel Inox-Crossal heat exchanger
B Highly effective thermal insulation
C Water-cooled stainless steel combustion chamber
D Wide water passageways - good natural circulation
E Modulating MatriX cylinder burner
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Vitocrossal 200, CM2-400, -500 and -620 Technical Data
Specifications
Technical Data
Boiler Model CM2 400 500 620
Input MBH 1445 1800 2245
(kW) (423) (527) (658)
Minimum Input NG MBH 287 358 450
(kW) (84) (105) (132)
Minimum Input LPG MBH 351 440 545
(kW) (103) (129) (160)
Output*
Net AHRI rating MBH
Combustion efficiency*
Thermal efficiency*
Overall length(e) in.
1 MBH
(kW)
(kW)
1 % 95.1 95.1 95.1
1 % 95.0 95.0 95.0
(mm) (2273) (2429) (2562)
1372
(402)
1193
(350)
89b
1710
(501)
1487
(436)
5
95
2132
(625)
1854
(543)
/
8
100
7
/
8
Overall width (c) in. 42
3
/
8
42
3
/
8
44
3
/
8
(including insulation) (mm) (1078) (1078) (1128)
Overall height (a) in. 65
(including control unit)*
2 (mm) (1666) (1666) (1748)
5
/
8
65
5
/
8
68c
Concrete boiler base
Length in. 46
5
/
8
53 58
(mm) (1185) (1345) (1475)
Width in. 42.5 42.5 44.5
(mm) (1245) (1245) (1295)
Thickness in. 4 4 4
(mm) (100) (100) (100)
Weight
Boiler body lb 1136 1257 1488
(Kg) (515) (570) (675)
Complete with the burner, control lb 1495 1662 1929
and thermal insulation (Kg) (678) (754) (875)
*
1 Tested to U.S. Standards ANSI Z21.13/CSA 4.9 and AHRI, BTS-2000 Testing Standard Method to determine the
efficiency of Commercial Heating Boilers.
*2 Add 1f in. (40 mm) when using seismic mounts (optional accessory).
Note: For high altitude installations 5,000 to 10,000 ft. (1500 to 3000 m), the input will have an altitude de-ration of
15% for 5,000 ft. (1500 m) and 18% for 10,000 ft. (3000 m)
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