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Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
1. Verify that the fuel type listed on the boiler rating plate
is the correct type for the installation being attempted.
2. Once verified, record the fuel type in Maintenance
Record on page 91.
The Vitodens 100-W boiler is for use with gases whose
characteristics fall within the following ranges. Do not
use any other types of gas.
Select Appropriate Gas Type
Natural gas
Liquid Propane gas
Heating value (gross)
Btu/ft
3
970 to 1100 2466 to 2542
Specific gravity
0.57 to 0.70 1.522 to 1.574
Ultimate carbon
dioxide (CO
2
) %
11.7 to 12.2 13.73 to 13.82
Converting Gas Type
Legend
A
Inlet gas pressure measurement port
Static pressure
1. To measure static and/or running pressure remove
burner cover panel as per the removal instructions
on page 42.
2. Close gas shutoff valve.
3. Loosen screw in test nipple
A
on the gas combination
valve, do not remove completely. Connect calibrated
manometer.
4. Open the gas shutoff valve.
5. Measure static pressure. Values must be:
- 14 “w.c. max. for NG
- 14 “w.c. max. for LPG
6. Enter measured value into Maintenance Record on
page 91 in this manual.
7. Start up boiler, using the on/off service switch (field
supplied).
A CO
2
measurement (see page 48) must be taken before
and after working on gas appliances to eliminate health risks
and to guarantee the satisfactory condition of the system.
IMPORTANT
Measure Static Pressure and Running Pressure
Measuring running gas supply pressure, using test nipple
A
The supplied coversion kit is required to convert the boiler’s
gas type from NG to LPG.
This kit contains all the parts, labels and instructions
required for conversion.
IMPORTANT
Start-up, Inspection and Maintenance
