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7 Installation
Installer reference guide
41
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
2
Open the drain and fill valve.
3
Make sure that the automatic air purge valve is open (at least 2
turns).
4
Fill the circuit with water until the manometer indicates a
pressure of ±2.0 bar.
5
Purge as much air as possible from the water circuit. For
instructions, see
"9 Commissioning" on page 74
.
6
Close the drain and fill valve.
7
Disconnect the water supply hose from the drain and fill valve.
NOTICE
The water pressure indicated on the manometer will vary
depending on the water temperature (higher pressure at
higher water temperature).
However, at all times water pressure shall remain above
1 bar to avoid air entering the circuit.
7.9.6
To fill the domestic hot water tank
For installation instructions, see the installation manual of the
domestic hot water tank.
7.9.7
To insulate the water piping
The piping in the complete water circuit MUST be insulated to
prevent condensation and reduction of the heating capacity.
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
7.10
Connecting the electrical wiring
7.10.1
About connecting the electrical wiring
Before connecting the electrical wiring
Make sure:
▪ The refrigerant piping is connected and checked
▪ The water piping is connected
Typical workflow
Connecting the electrical wiring typically consists of the following
stages:
1
Making sure the power supply system complies with the
electrical specifications of the heat pump.
2
Connecting the electrical wiring to the outdoor unit.
3
Repositioning the air thermistor on the outdoor unit.
4
Connecting the electrical wiring to the indoor unit.
5
Connecting the main power supply.
6
Connecting the user interface.
7
Connecting the shut–off valves.
8
Connecting the electrical meters.
9
Connecting the domestic hot water pump.
10
Connecting the alarm output.
11
Connecting the space heating ON/OFF output.
12
Connecting the changeover to an external heat source.
13
Connecting the power consumption digital inputs.
14
Connecting the safety thermostat.
15
Connecting the backup heater (if applicable).
7.10.2
About electrical compliance
ERHQ_V3
Equipment complying with 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.).
ERLQ_V3
Equipment complying 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
ERLQ011CAV3
ERLQ014CAV3
ERLQ016CAV3
0.22 Ω
525 kVA
ERLQ_W1
Equipment complying with 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.).