Instructing The System User - Viessmann BW 35 .AHT PW Series Installation And Service Instructions Manual

Checking the electronic flow switch, type IFM
Carry out an operating display adjustment (high flow balancing if necessary)
High flow balancing establishes the existing (higher)
flow rate as the nominal flow rate. For the correspond-
ing values for operating mode "water/water with inter-
mediate circuit", see "Specification" on page 68
onwards.
Note
High flow balancing can shift the switching point of the
flow switch.
Fitting the top panel and front panel (closing the heat pump)
See page 45.

Instructing the system user

The system installer should hand the operating instruc-
tions to the system user and instruct the user in oper-
ating the system.
This includes all components installed as accessories,
e.g. remote control units. In addition, the system instal-
ler must make the user aware of the required mainte-
nance work.
For further details of operation
Operating instructions for "PLC control unit"
Commissioning, inspection, maintenance
(cont.)
1. Start the appliance with the existing flow rate.
2. Press and hold for around 5 s until LED "9"
flashes.
3. Release .
51