Viessmann Vitomax HS M73 Operating And Service Instructions page 28

Commissioning
Commissioning sequence
TDS controller adjustment
Set according to the manufacturer's specifications.
The max. possible conductivity of the boiler water is
stated in the water standards, e.g. EN 12953-10 or the
chapter "Standard values for water quality" on
page 19.
Statements made in the water standards may differ.
Never exceed the maximum values of 6000
20 bar.
Checking the closures on the water side
During commissioning, check all closures and flanges
on the water side for tightness and retighten according
to table 19 on page 34.
Commissioning following boiler idle time
Commissioning following idle time must generally be
carried out by the on-site operating personnel. Starting
the boiler from the external control room is not permis-
sible.
The following sequence must be observed:
1. Walk around the system to visually check its cor-
rect condition
2. Commission the control panel
"ON"
3. Commission the feed
4. Check the water level and the function of the water
level indicator as well as that of the water level
control
Boilout
For technical or safety reasons, a boilout prior to com-
missioning the boiler is not required for shell boilers.
Report
The commissioning must be logged by recording the
set and adjusted values.
Instructions
The operating personnel must be trained following
commissioning.
28
(cont.)
Agree the control value with the user. Test the limit
value switch function regarding the max. conductivity
by reducing the set value.
S/cm to
µ
5. Commission the combustion with the steam valve
6. Control the output to partial load or stage 1
7. Check the water level and reduce it by means of a
8. As soon as the boiler pressure rises to 3 bar below
circuit breaker
–
9. For further checks see chapter "Recommendation
10. For systems without temporary supervision: After
This report must be signed by the customer.
Commissioning must be logged.
closed
blow-down as soon as high water has been
reached.
the permissible operating pressure, slowly open
the steam valve.
for monitoring" on page 29
starting commissioning, the system must be moni-
tored for 1 hour by the operating personnel.