Daikin VRV IV+, Installer And User Reference Manual

Page: 44 / 168

5 | Preparation
Installer and user reference guide
44
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
WARNING
▪
All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
▪
Make electrical connections to the fixed wiring.
▪
All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
WARNING
The backup heater MUST have a dedicated power supply and MUST be protected by
the safety devices required by the applicable legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
5.4.2 About electrical compliance
This equipment 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
(Ω) Minimum S
sc
value
(kVA)
RYYQ8/RYMQ8/RXYQ8 — 4050
RYYQ10/RYMQ10/RXYQ10 — 5535
RYYQ12/RYMQ12/RXYQ12 — 6038
RYYQ14/RYMQ14/RXYQ14 — 6793
RYYQ16/RYMQ16/RXYQ16 — 7547
RYYQ18/RYMQ18/RXYQ18 — 8805
RYYQ20/RYMQ20/RXYQ20 — 9812
RYYQ22/RXYQ22 — 11573