Refrigerant - In Case Of R410A Or R32; Water - Daikin Altherma EHYKOMB33AA Installations- Und Bedienungsanleitung

▪ ONLY operate the gas boiler if a sufficient supply of combustion
air is ensured. In case of a concentric air/flue gas system
dimensioned according to the specifications of this manual, this is
fulfilled automatically and there are no other conditions for the
equipment installation room. This method of operation applies
exclusively.
▪ Store flammable fluids and materials at least 1 meter away from
the gas boiler.
▪ This gas boiler is NOT designed for room air dependent operation.
Do NOT install the unit in the following places:
▪ In potentially explosive atmospheres.
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fibre,
ignitable dust.
▪ In places where corrosive gas (example: sulphurous acid gas) is
produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.
▪ In bathrooms.
▪ In places where frost is possible. The ambient temperature around
the gas boiler should be >5°C.
▪ In places where frost is possible. The ambient temperature around
the indoor unit should be >5°C.
3.1.3 Refrigerant — in case of R410A or R32
If applicable. See the installation manual or installer reference guide
of your application for more information.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump
down the system, and there is a leak in the refrigerant
circuit:
▪ Do NOT use the unit's automatic pump down function,
with which you can collect all refrigerant from the
system into the outdoor unit. Possible consequence:
Self-combustion and explosion of the compressor
because of air going into the operating compressor.
▪ Use a separate recovery system so that the unit's
compressor does NOT have to operate.
WARNING
During tests, NEVER pressurise the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
WARNING
Take sufficient precautions in case of refrigerant leakage. If
refrigerant gas leaks, ventilate the area immediately.
Possible risks:
▪ Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
▪ Toxic gas might be produced if refrigerant gas comes
into contact with fire.
WARNING
ALWAYS recover the refrigerant. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuate the installation.
EHYKOMB33AA
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1L – 2022.09
3 General safety precautions
WARNING
Make sure there is no oxygen in the system. Refrigerant
may ONLY be charged after performing the leak test and
the vacuum drying.
Possible consequence: Self-combustion and explosion of
the compressor because of oxygen going into the
operating compressor.
NOTICE
▪ To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
▪ When the refrigerant system is to be opened,
refrigerant MUST be treated according to the applicable
legislation.
NOTICE
Make sure refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
NOTICE
Make sure the field piping and connections are NOT
subjected to stress.
NOTICE
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak detection.
▪ In case recharge is required, see the nameplate of the unit. It
states the type of refrigerant and necessary amount.
▪ The unit is factory charged with refrigerant and depending on pipe
sizes and pipe lengths some systems require additional charging
of refrigerant.
▪ ONLY use tools exclusively for the refrigerant type used in the
system, this to ensure pressure resistance and prevent foreign
materials from entering into the system.
▪ Charge the liquid refrigerant as follows:
If
A siphon tube is present
(i.e., the cylinder is marked with
"Liquid filling siphon attached")
A siphon tube is NOT present
▪ Open refrigerant cylinders slowly.
▪ Charge the refrigerant in liquid form. Adding it in gas form may
prevent normal operation.
CAUTION
When the refrigerant charging procedure is done or when
pausing, close the
immediately. If the valve is NOT closed immediately,
remaining pressure might charge additional refrigerant.
Possible consequence: Incorrect refrigerant amount.
3.1.4

Water

If applicable. See the installation manual or installer reference guide
of your application for more information.
Then
Charge with the cylinder upright.
Charge with the cylinder upside
down.
valve of the refrigerant tank
Installation and operation manual
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