Viessmann Vitoplex 100 PV1 User Manual

10
Tighten screws
A
crosswise (torque 25 Nm).
Danger
Leaks can result in a risk of poisoning through
escaping gas.
Check gaskets carefully.
Checking connections and sensor well on the heating water side for tight-
ness
Checking the function of the safety equipment
Check safety valves, water level and pressure limiter in
accordance with manufacturer's details.
Checking the expansion vessel and system pressure
Expansion vessel manufacturer's documentation Note
Carry out this test on a cold system.
Expansion vessel
1. Drain the system until the pressure gauge indicates
"0" or close the cap valve on the expansion vessel
and reduce the pressure in the expansion vessel.
Note
The pre-charge pressure of the expansion vessel
(p
0
) is made up of the static system pressure (p
St
)
(= static head) and a supplement (p
0
= p
St
+ supple-
ment).
The supplement depends on the high limit safety
cut-out setting. The following applies for the respec-
tive high limit safety cut-out settings
■
100 °C: 0.2 bar (0.02 MPa)
■
110 °C: 0.7 bar (0.07 MPa).
2. If the pre-charge pressure of the expansion vessel
is lower than the static system pressure, top up with
nitrogen until the pre-charge pressure is 0.1 to
0.2 bar (0.01 to 0.02 MPa) higher.
The static pressure corresponds to the static head.
3.
Top up with softened water
*1
until the charge pres-
sure of the cooled system is 0.1 to 0.2 bar (0.01 to
0.02 MPa) higher than the pre-charge pressure of
the expansion vessel.
Permiss. operating pressure: 5 bar (0.5 MPa)
Pump controlled pressure maintaining systems
!
Please note
Pressure fluctuations may cause damage to the
boiler or to other system components.
In heating systems with automatic pressure
maintaining systems, and in particular pump-
controlled systems with integral deaeration, we
recommend the installation of an expansion ves-
sel for each boiler as individual boiler protection.
This reduces the frequency and level of pres-
sure fluctuations. This contributes considerably
to improved operational reliability and a longer
service life of the system components.
Boiler out-
put
kW up to
300
up to
500
up to
1000
Expansion
vessel
litre 50 80 140
*1
For water quality requirements, see page 20.
Commissioning, inspection, maintenance
Securing the boiler door and cleaning cover (cont.)
5692 701 GB

Viessmann Vitoplex 100 PV1 Specifications

General

Brand	Viessmann
Model	Vitoplex 100 PV1
Category	Boiler
Language	English