Technical information
Vitorond 200, VD2A Series Service
5354 789 - 01
8
Necessary Tools
General Information
Tools
 H Assortment of flathead and Phillips screwdrivers
 H Pipe wrenches
 H Open-ended wrenches
 H Pipe sealant
 H Assortment of Allen keys
 H Flashlight
 H Approved leak detection fluid for natural gas and 
propane gas
Cleaning supplies
 H Hand brush
 H Cleaning/service brush (supplied)
 H Vacuum cleaner
 H Rags
Testing/Analysis equipment
(use only calibrated equipment)
 H Flue gas analyzer to measure % CO
2
 or O
2
(i.e. Bacharach fluid samplers or a suitable electronic 
analyzer)
 H Multimeter to measure 0 - 120 VAC, 0 - 12 AAC, and 
0 - 20 microamps DC
 H Smoke test gun (Bacharach)
 H Oil pump pressure gage
 H Oil pump vacuum gage
 H Pressure gage to measure gas pressure 0 - 28 ”w.c. 
(a non-electric Magnehelicr pressure gage may also be 
used)
 H Carbon monoxide measuring equipment (0 - 400 ppm)
 H Bacharach calculator or suitable tables to calculate 
efficiency
 H Stack thermometer 0 to 500° F (0 to 260° C)
 H d in. NPT male to ¼ in. barb adaptor fitting, as well as 
tubing for pressure measurement
CAUTION
Use only original Viessmann components when replacing 
defective parts. Installation of incorrect replacement 
parts can cause hazardous operation and will void 
warranty.
Technical information
The following is a list of literature applicable to the 
Vitorond 200, VD2A boiler:
 H Installation Instructions
 H Service Instructions
 H Operating Instructions and User’s Information Manual 
For installation of the heating system, please refer also 
to the technical literature of other System Technology 
devices:
 H Installation Instructions for Viessmann boiler control
 H Installation Instructions for Viessmann indirect-fired hot 
water storage tank(s)
 H Installation Instructions for burner and accessories
Replacement parts
For a complete listing of replacement components, please 
see Parts List starting on page 17 of these instructions.
Order replacement components from your Viessmann 
distributor.










