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Specific installer safety instructions
Installer and user reference guide
15
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
WARNING
Install the unit ONLY in locations where the doors of the occupied space are NOT
tight fitting.
CAUTION
Appliance NOT accessible to the general public, install it in a secured area, protected
from easy access.
The equipment meets the requirements for commercial and light-industrial locations
when professionally installed and maintained.
CAUTION
This equipment is NOT intended for use in residential locations and will NOT
guarantee to provide adequate protection to radio reception in such locations.
CAUTION
Excessive concentrations of refrigerant R744 (CO
2
) in a closed room can lead to
unconsciousness and oxygen deficiency. Take appropriate measures.
"To determine the minimum number of appropriate measures"
63].
CAUTION
If the safety valve operates inside the unit, CO
2
gas may concentrate inside the casing
of the outdoor unit. Therefore, you should ALWAYS take a distance for your own
safety. You can close the outdoor unit if your portable CO
2
detector confirmed that
the concentration of CO
2
is at an acceptable level. For example, if 7 kg CO
2
is released
inside the casing, it takes around 5 minutes until the concentration of CO
2
is low
enough.
DANGER: RISK OF BURNING/SCALDING
WARNING
The field piping method MUST be in accordance with the instructions from this
manual. See
WARNING
The unit contains small amounts of refrigerant R744.
WARNING
Any gas or oil remaining inside the stop valve may blow off the spun piping.
If these instructions are NOT followed correctly it may result in property damage or
personal injury, which may be serious depending on the circumstances.