Daikin EKEXVA300 handleiding
Handleiding
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15 Electrical installation
Installation and operation manual
23
EKEACBVE + EKEXVA50~500
Option kit for combination of Daikin outdoor units with field-
supplied air handling units
4P724517-1 – 2023.06
340
(mm)
192.5
c
b a
a Liquid piping from outdoor unit
b Liquid piping to air handling unit
c Pipe fixing clamps
2 Remove the pipe fixing clamps (c) by unscrewing 4× M5.
3 Remove the upper and lower pipe insulations.
4 Braze the field piping.
WARNING
▪ Make sure to cool the filters and valve body with a wet
cloth and make sure the body temperature does not
exceed 120°C during brazing.
▪ Make sure that the other parts such as electrical box,
cable ties and wires are protected from direct brazing
flames during brazing.
5 After brazing, put the lower pipe insulation back in place and
close it with the upper insulation cover (after peeling off the
liner).
6 Secure the pipe fixing clamps (c) in place again (4x M5).
7 Make sure that field pipes are fully insulated.
Field pipe insulation must reach up to the insulation you have
put back in place in step 5. Make sure that there is no gap
between both ends in order to avoid condensation dripping
(finish the connection with tape).
14.2.2 To braze the pipe end
▪ When brazing, blow through with nitrogen to prevent creation of
large quantities of oxidised film on the inside of the piping. This
film adversely affects valves and compressors in the refrigerating
system and prevents proper operation.
▪ Set the nitrogen pressure to 20 kPa (0.2 bar) (just enough so it
can be felt on the skin) with a pressure-reducing valve.
a b c d e
f
f
a Refrigerant piping
b Part to be brazed
c Taping
d Manual valve
e Pressure-reducing valve
f Nitrogen
▪ Do NOT use anti-oxidants when brazing pipe joints. Residue can
clog pipes and break equipment.
▪ Do NOT use flux when brazing copper-to-copper refrigerant
piping. Use phosphor copper brazing filler alloy (BCuP), which
does NOT require flux.
Flux has an extremely harmful influence on refrigerant piping
systems. For instance, if chlorine based flux is used, it will cause
pipe corrosion or, in particular, if the flux contains fluorine, it will
deteriorate the refrigerant oil.
▪ ALWAYS protect the surrounding surfaces (e.g. insulation foam)
from heat when brazing.
15 Electrical installation
CAUTION
See "2 Specific installer safety instructions" [4 6] to make
sure this installation complies with all safety regulations.
15.1 Control box
15.1.1 To connect the electrical wiring to the
control box
WARNING
Use only specified wires, and tightly connect wires to the
terminals. Keep wiring in neat order so that it does not
obstruct other equipment. Incomplete connections could
result in overheating, and in worst case, electric shock or
fire.
WARNING
The signals on the wires connected to the control box and
the expansion valve kit are NOT safety extra-low voltages
and are NOT safe to touch. The wires used for the
connection of the control box and the expansion valve kit
MUST therefore provide double insulation.
NOTICE
Thermistor cables and remote controller wires must be
kept at least 50 mm away from power supply wires and
from wires to the AHU controller. Not following this
guideline may result in malfunction due to electrical noise.
K8R
K5R
K4R
K3R
K2R
K1R
A5P
X1M
X2M
A2P
A1P
A3P
A4P
A1P PCB (main)
A2P PCB (relay)
A3P PCB (converter)
A4P PCB (demand)
A5P PCB (power supply)
K1R Magnetic relay (error state)
K2R Magnetic relay (fan ON/OFF)
K3R Magnetic relay (inverter operation)
K4R Magnetic relay (defrost)
K5R Magnetic relay (R32 alarm)
Bekijk gratis de handleiding van Daikin EKEXVA300, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EKEXVA300 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5715 MB |
