30 WSN-XIN
21-141
M0V940M13-06
7.19 Antifreeze function with heat pump
AF02
switch-off setpoint of the heat pump for antifrezze (5°C)
AF03
hysteresis (3°C)
The function is not enabled by default
To activate the function: AF00 = 1
Off
AF03
ON
AF02
Heat pump
t H
2
O inlet
7.20 Start-up report
Identifying the operating objective conditions is useful to control the unit over time.
With unit at steady state, i.e. in stable and close-to-work conditions, identify the following data:
•
total voltages and absorptions with unit at full load
•
absorptions of the different electric loads (compressors, fans, pumps etc)
•
temperatures and flows of the different fluids (water, air) both in input and in output from the unit
•
temperature and pressures on the characteristic points of the refrigerating circuit (compressor discharge, liquid, intake)
The measurements must be kept and made available during maintenance interventions.
7.21 2014/68/UE PED directive
DIRECTIVE 2014/68/UE PED gives instructions for installers, users and maintenance technicians as well.
Refer to local regulations; briefly and as an example, see the following:
Compulsory verification of the first installation:
•
only for units assembled on the installer’s building site (for ex. Condensing c direct expansion unit)
Certification of setting in service:
•
for all the units
Periodical verifications:
•
to be executed with the frequency indicated by the Manufacturer (see the “maintenance inspections” paragraph)
