Maintenance; General; Cleaning The Casing; Standard Inspection And Maintenance Operations - DeDietrich MIV-4S AWHP 6 MR-3 User Manual

8

Maintenance

8.1

General

8.2

Cleaning the casing

8.3

Standard inspection and maintenance operations

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Maintenance operations are important for the following reasons:
To guarantee optimum performance.
To extend the life of the equipment.
To provide an installation which offers the user optimum comfort over
time.
Caution
Maintenance work must be carried out by a qualified professional.
Danger
Before any work, switch off the mains electricity to the heat pump
and the hydraulic or electrical back-up if connected.
Caution
Before working on the refrigeration circuit, switch off the appliance
and wait a few minutes. Certain items of equipment such as the
compressor and the pipes can reach temperatures in excess of
100°C and high pressures, which may cause serious injuries.
Caution
Do not drain the installation, except in cases of absolute necessi­
ty. E.g.: several months' absence with the risk of temperatures in
the building falling below freezing.
1. Clean the outside of the appliance using a damp cloth and a mild
detergent.
An annual inspection with tightness check is obligatory. Schedule a serv­
ice by a qualified professional at a cold time of the year to check the fol­
lowing points:
1. Operation of the installation.
2. Thermal output, by measuring the difference in temperature be­
tween heating flow and return.
3. The setting for the safety thermostats.
8 Maintenance
MIV-4S 45