5
5680 011 -10
Viessmann AirflowPLUS AH2A Installation, Operating and Service
General Information
About these Installation Instructions
Take note of all symbols and notations intended to draw attention to potential hazards or important
product information.
CAUTION
Cautions draw your attention to the presence of potential
hazards or important product information.
WARNING
Warnings draw your attention to the presence of potential
hazards or important product information.
IMPORTANT
Indicates an imminently hazardous situation which,
if not avoided, could result in death, serious injury or
substantial product/property damage.
Indicates an imminently hazardous situation which,
if not avoided, may result in minor injury or product/
property
damage.
Helpful hints for installation, operation or maintenance
which pertain to the product.
This symbol indicates to note additional information
This symbol indicates that other instructions must be
referenced.
Necessary Tools
Testing/analysis equipment
(Use only calibrated equipment)
H
Multimeter to measure 0 - 230V, 0 - 12A AC and
0-100 mA DC
H
Manometer to measure air pressure 0 to 11 "w.c.
(accurately) (or a non-electric Magnehelic® manometer
may also be utilized)
Cleaning supplies
H
Plastic hand brush
H
Rags
Special items
H
Pipe joint sealant
