Refrigerant Safety; Domestic Water Safety - DeDietrich EASYLIFE ALEZIO S V200 User Manual

1.4

Refrigerant safety

General France: Pursuant to Article L. 113-3 of the French Consumer Code, the equipment must be installed by a
certified operator whenever the refrigerant load is in excess of 5 tonnes of CO
frigerant connection is necessary (the case with split systems, even when fitted with a quick coupling de­
vice).
All work on the refrigeration circuit must be done by a qualified professional, according to prevailing co­
des of practice and safety in the profession (recovery of the refrigerant, brazing under nitrogen). All braz­
ing work must be done by qualified brazers.
Precautions Use only R410A refrigerant to fill the installation.
Use tools and pipe components especially designed for use with R410A refrigerant.
Use copper pipes deoxidised with phosphorus to carry the refrigerant.
Store the refrigerant connection pipes away from dust and humidity (risk of damage to the compressor).
Do not use a load cylinder.
Protect the heat pump components, including the insulation and structural elements. Do not overheat the
pipes as brazed components may cause damage.
Contact between the refrigerant and a flame may result in emissions of toxic gases.
Do not touch the refrigeration connection pipes with your bare hands while the heat pump is running.
Danger of burn or frost injury.
In the event of a refrigerant leakage:
Switch off the appliance.
Open the windows.
Do not use a naked flame, do not smoke, do not operate electrical contacts.
Avoid contact with the refrigerant. Danger of frost injuries.
Locate the probable leak and seal it immediately. Use only original parts to replace a defective refriger­
ation component.
Use only dehydrated nitrogen for detecting leaks or for pressurised tests.
Do not allow the refrigerant to escape into the atmosphere.
1.5

Domestic water safety

General Heating water and domestic water must not come into contact with each other. Domestic water must not
circulate through the exchanger.
Take precautions with the domestic hot water. Depending on the heat pump settings, the domestic hot
water temperature may exceed 65 °C.
To limit the risk of burns, install a device limiting the temperature of the hot water, such as a thermostatic
mixing valve, for example. France: Order of 30th November 2005 modifying article 36 of the order of 23rd
June 1978 relating to fixed installations for heating and the supply of domestic hot water in residential
buildings, offices, or establishments open to the general public.
Limit temperature at the draw-off point: the maximum domestic hot water temperature at the draw-off
point is subject to special regulations in the various countries in which the appliance is sold in order to
protect the user. These special regulations be observed when installing the appliance.
In accordance with safety rules, a safety pressure relief valve calibrated to 0.7 MPa (7 bar) must be in­
stalled on the tank's domestic cold water inlet.
A domestic expansion vessel (not supplied) of a suitable size may be connected between the domestic
cold water input and the combination valve, and prevents the domestic safety pressure relief valve being
activated. No cut-off device must be located between these two components.
To drain the domestic hot water circuit, see the Maintenance section.
Precautions A pressure reducer (not provided) is required when the supply pressure exceeds 80% of the pressure
limiter device calibration and must be located upstream of the appliance.
There must be no cut-off devices between the pressure limiter device and the domestic hot water tank.
7748661 - v04 - 01022022
Caution
The pressure limiter device (safety pressure relief valve or combination valve)
must be regularly operated in order to remove limescale deposits and ensure that
it is not blocked.
The drain of the pressure limiter device must be connected to the discharge lead­
ing to the waste water system.
As water may flow out of the drain pipe on the pressure limiter device, the pipe
must be kept open to the air, in a frost-free environment, and at a continuous
downward gradient.
1 Safety instructions and recommendations
equivalent or when a re­
2
MIV-S V200 7