Checking The Function Of The Safety Equipment; Checking The Pressure Switch Function - Viessmann Vitocrossal 300 Service Instructions For Contractors

Commissioning, inspection, maintenance
Checking all connections and the sensor well on...
A
B
Fig. 4
1. Undo the fixing screws in top panels
the panels.
2. Open the thermal insulation of the heat exchanger
module until connecting flange
ble.
3. Check connecting flange
all connections 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 pressure switch function

Installation instructions, pressure switch set
12
A
A
. Remove
A
is freely accessi-
C
, sensor well and
C B
(cont.)
C
A
4. Close the thermal insulation of the heat exchanger
module.
5. Position the top panels and secure with screws.
Note
The gaskets can also be checked under full load with
an inspection mirror. If required, remove the thermal
insulation components.