14 Electrical installation
Installation and operation manual
25
LRYELRNUN5A7Y1
CO
₂
Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
Insulation thickness
Take the following into account when determining the insulation
thickness:
Piping
Mode
Minimum
temperature during
operation
Liquid piping
Refrigeration
0°C
Air conditioner
20°C
Gas piping
Refrigeration
–20°C
Air conditioner
0°C
Depending on your local weather conditions, you may need to
increase the thickness of the insulation. If the ambient temperature
exceeds 30°C and the humidity exceeds 80%.
▪ Increase the thickness of the liquid piping with ≥5 mm.
▪ Increase the thickness of the gas piping with ≥20 mm.
Insulation sealing
To prevent rain and condensed water entering the unit, add a
sealing between the insulation and the front panel of the unit.
a
a
a
a
b
b
a
Sealing material
b
Front panel
14
Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50 mm.
14.1
About electrical compliance
This equipment (LRYEN10A7Y1 and LRNUN5A7Y1) complies with:
▪
EN/IEC 61000‑3‑11
provided that the system impedance Z
sys
is
less than or equal to Z
max
at the interface point between the user's
supply and the public system.
▪ EN/IEC
61000‑3‑11
=
European/International
Technical
Standard setting the limits for voltage changes, voltage
fluctuations and flicker in public low-voltage supply systems for
equipment with rated current ≤75 A.
▪ It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply
with a system impedance Z
sys
less than or equal to Z
max
.
▪
EN/IEC 61000‑3‑12
provided that the short-circuit power S
sc
is
greater than or equal to the minimum S
sc
value at the interface
point between the user's supply and the public system.
▪ EN/IEC
61000‑3‑12
=
European/International
Technical
Standard setting the limits for harmonic currents produced by
equipment connected to public low-voltage systems with input
current >16 A and ≤75 A per phase.
▪ It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply
with a short-circuit power S
sc
greater than or equal to the
minimum S
sc
value.
Model
Z
max
Minimum S
sc
value
LRYEN10A7Y1
—
4337
LRNUN5A7Y1
—
2294
