Daikin ERA300AMYFB handleiding
Handleiding
Je bekijkt pagina 26 van 48
15 Piping installation
Installation and operation manual
26
ERA200~300AMYFB
Inverter outdoor unit for AHU option kit and air curtains
4P780153-1 – 2024.07
1 Prepare 2 cables as indicated in the following illustration (field
supply).
2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit
to prevent the cables from scratching the paint (field supply).
4 Attach the ends of the cables.
5 Tighten the cables.
15 Piping installation
CAUTION
See "2 Specific installer safety instructions" [4 5] to make
sure this installation complies with all safety regulations.
15.1 Preparing refrigerant piping
15.1.1 Refrigerant piping requirements
NOTICE
The piping and other pressure-containing parts shall be
suitable for refrigerant. Use phosphoric acid deoxidised
seamless copper for refrigerant piping.
▪ Foreign materials inside pipes (including oils for fabrication) must
be ≤30mg/10m.
15.1.2 Refrigerant piping material
▪ Piping material: phosphoric acid deoxidised seamless copper
▪ Flare connections: Only use annealed material.
▪ Piping temper grade and thickness:
Outer diameter
(Ø)
Temper grade Thickness (t)
(a)
9.5mm (3/8")
12.7mm (1/2")
Annealed (O) ≥0.80mm
t
Ø
15.9mm (5/8") Annealed (O) ≥0.99mm
19.1mm (3/4")
22.2mm (7/8")
Half hard (1/2H) ≥0.80mm
(a)
Depending on the applicable legislation and the maximum
working pressure of the unit (see "PS High" on the unit name
plate), larger piping thickness might be required.
15.1.3 Refrigerant piping insulation
▪ Use polyethylene foam as insulation material:
▪ with a heat transfer rate between 0.041 and 0.052W/mK (0.035
and 0.045kcal/mh°C)
▪ with a heat resistance of at least 120°C
▪ Insulation thickness:
Ambient
temperature
Humidity Minimum thickness
≤30°C 75% to 80% RH 15mm
>30°C ≥80% RH 20mm
15.1.4 Combination table and heat exchanger
volume limitations
The ERA outdoor unit can only be combined with one expansion
valve kit EKEXVA according to the combination table shown below:
Expansion valve kit EKEXVA
140 200 250 300
ERA200 P
(2.94)
P
(3.02)
— —
ERA250 — P
(3.02)
P
(3.97)
—
ERA300 — P
(3.49)
P
(3.97)
P
(4.53)
— Not allowed
P () Pair AHU layout (value for minimum AHU heat exchanger
volume [dm³])
15.1.5 To select the piping size
In case the required pipe sizes (inch sizes) are not available, it is
also allowed to use other diameters (mm sizes), taken the following
into account:
▪ Select the pipe size nearest to the required size.
▪ Use the suitable adapters for the changeover from inch to mm
pipes (field supply).
▪ The additional refrigerant calculation has to be adjusted as
mentioned in "16.2 To determine the additional refrigerant
amount"[431].
Use the same diameters as the connections (liquid, gas) on the
indoor unit/air curtain. The diameters of the indoor unit/air curtain are
as follows:
Indoor unit capacity
index
Piping outer diameter size [mm]
Gas pipe Liquid pipe
140 15,9 9,5
200 19,1 9,5
250 19,1 9,5
300 22,2 12,7
15.2 Connecting the refrigerant piping
DANGER: RISK OF BURNING/SCALDING
15.2.1 Using the stop valve and service port
To handle the stop valve
Take the following guidelines into account:
▪ The gas and liquid stop valves are factory closed.
▪ Make sure to keep all stop valves open during operation.
▪ Do NOT apply excessive force to the stop valve. Doing so may
break the valve body.
To open the stop valve
1 Remove the dust cap.
2 Insert a hexagon wrench into the stop valve.
Bekijk gratis de handleiding van Daikin ERA300AMYFB, 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 | ERA300AMYFB |
| Categorie | Ventilator |
| Taal | Nederlands |
| Grootte | 8144 MB |
