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Viessmann AirflowPLUS AH2A Installation, Operating and Service
Equipment Selection and Sizing
Compatibility Charts
Air handler model AH2A-213
Boiler supply water temperature
Vitodens 100 WB1B-26
Vitodens 100 WB1B-35
Vitodens 222 B2TB-19
Vitodens 222 B2TB-35
Vitodens 200 B2HB-19
Vitodens 200 B2HB-26
Vitodens 200 B2HB-35
Vitodens 200 B2HB-45
Vitodens 200 B2HB-57
Vitodens 200 B2HA-45
Vitodens 200 B2HA-60
Vitodens 200 B2HA-80
Vitodens 200 B2HA-88
Vitodens 200 B2HA-100
Vitodens 200 B2HA-112
Vitodens 200 B2HA-150
Vitocrossal 300 CU3A-26
Vitocrossal 300 CU3A-35
Vitocrossal 300 CU3A-45
Vitocrossal 300 CU3A-57
Note: Compatibility charts do not take into consideration
systems using additional heat emitters, DHW load
etc. Ensure the boiler selected meets all of the
system requirements for loads generated by
additional components.
It is the responsibility of the system designer to
ensure proper sizing and equipment selection.
Proper sizing of systems components is crucial for proper
operation;
1. Obtain room by room heat loss and/or heat gain
2. Determine heating water temperature
3. Determine duct layout
Make sure a proper room-by-room heat loss and heat
gain for the dwelling is calculated using Manual J, HRAI,
ASHRAE or other approved sizing method.
120°F (28 MBH)
140°F (46 MBH) 160°F (62 MBH)
Product Description
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180°F (72 MBH)
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