Check Electronic Flow Switch, Type Ifm - Viessmann VITOCAL 300-G PRO Installation And Service Instructions Manual

Further details regarding the individual steps
Parameter
"Communication" Ó
"LON system number 7798"
"Communication" Ó
"LON fault manager 7779"
Note
The additional parameters for the heat
pump cascade are set during commis-
sioning by a certified heat pump contrac-
tor.

Check electronic flow switch, type IFM

Commissioning, inspection, maintenance
Lead heat pump
"1" to "5"
"1" to "99" (unique)
The electronic flow switch monitors the
minimum flow rate required for operating
the heat pump.
1. Check the tip of the sensor regularly
for possible deposits.
2. Clean the tip of the sensor with a
cloth, if required.
Remove stubborn deposits (such as
limescale) with commercially availa-
ble vinegar-based cleaners.
3. Switch on the power supply.
LEDs "0" to "9" illuminate green in
sequence and then extinguish
again.
Then follows the operating display.
(cont.)
Setting
Lag heat pump
"1" to "5" (as per lead
heat pump)
"1" to "99" (unique)
93