Daikin ERA250AMYFB handleiding
Handleiding
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15 Piping installation
Installation and operation manual
27
ERA200~300AMYFB
Inverter outdoor unit for AHU option kit and air curtains
4P780153-1 – 2024.07
3 FULLY turn the stop valve counterclockwise and tighten until
the correct tightening torque value is achieved (see "Tightening
torques"[427]).
NOTICE
Stop valves need to be opened on torque specified in this
manual. It is not allowed to turn valve "a quarter turn" back
when opening it.
4 Install the dust cap.
Result: The valve is now open.
NOTICE
Reinstall dust cap to prevent aging of O-ring and risk of
leakage.
To close the stop valve
1 Remove the stop valve cover.
2 Insert a hexagon wrench into the stop valve and turn the stop
valve clockwise.
3 When the stop valve cannot be turned any further, stop turning.
4 Install the stop valve cover.
Result: The valve is now closed.
To handle the service port
▪ Always use a charge hose equipped with a valve depressor pin,
since the service port is a Schrader type valve.
▪ After handling the service port, make sure to tighten the service
port cover securely. For the tightening torque, refer to the table
below.
▪ Check for refrigerant leaks after tightening the service port cover.
Tightening torques
Stop valve
size [mm]
Tightening torque [N•m]
(a)
Valve body Hexagonal
wrench
Service port
Ø9.5 5~7 4mm 10.7~14.7
Ø12.7 8~10
Ø15.9 14~16 6mm
Ø19.1 19~21 8mm
Ø25.4
(a)
When opening or closing.
15.2.2 To remove the pinched pipes
WARNING
Any gas or oil remaining inside the stop valve may blow off
the pinched piping.
Failure to observe the instructions in procedure below
properly may result in property damage or personal injury,
which may be serious depending on the circumstances.
Use the following procedure to remove the pinched piping:
1 Make sure that the stop valves are fully closed.
2 Connect the vacuuming/recovery unit through a manifold to the
service port of all stop valves.
a
a
b
b
a Service port
b Stop valve
3 Recover gas and oil from the pinched piping by using a
recovery unit.
CAUTION
Do NOT vent gases into the atmosphere.
4 When all gas and oil is recovered from the pinched piping,
disconnect the charge hose and close the service ports.
5 Cut off the lower part of the gas and liquid stop valve pipes
along the black line. Use an appropriate tool (e.g. a pipe cutter).
WARNING
NEVER remove the pinched piping by brazing.
Any gas or oil remaining inside the stop valve may blow off
the pinched piping.
6 Wait until all oil has dripped out before continuing with the
connection of the field piping in case the recovery was not
complete.
15.2.3 To braze the pipe end
NOTICE
Precautions when connecting field piping. Add brazing
material as shown in the figure.
1
1
1
1
2 2
≤Ø25.4 >Ø25.4
Bekijk gratis de handleiding van Daikin ERA250AMYFB, 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 | ERA250AMYFB |
| Categorie | Ventilator |
| Taal | Nederlands |
| Grootte | 8144 MB |
