Daikin RXYQ30PY1 [279/487] Before working

Daikin RXYQ16PY1 [279/487] Before working
ED34-645B Additional Refrigerant Charge and Check Operation
Installation of Outdoor Units 671
15
11.Additional Refrigerant Charge and Check Operation
The outdoor unit is charged with refrigerant when shipped from the factory, but depending on the size and length of
the piping when installed, it may require additional charging.
For charging the additional refrigerant, follow the procedure in this chapter.
And then carry out the check operation.
11.1 Before Working
[About the refrigerant tank]
Check whether the tank has a siphon pipe before charging and place the tank so that the refrigerant is charged in
liquid form. (See the figure below.)
Caution
Always use the proper refrigerant (R-410A). If charged with the refrigerant containing an improper material, it may
cause an explosion or accident.
R-410A is a mixed refrigerant, so charging it as a gas will cause the refrigerant composition to change, which may
prevent normal operation.
[Shutoff valve operation procedure]
When operating the shutoff valve, follow the procedure instructed below.
Do not open the shutoff valve until “10. Checking of Device and Installation Conditions” are completed. If the
shutoff valve is left open without turning on the power, it may cause refrigerant to buildup in the compressor,
leading insulation degradation.
Be sure to use the correct tools.
The shutoff valve is not a back-seat type. If forced it to open, it might break the valve body.
When using a service port, use the charge hose.
After tightening the cap, make sure no refrigerant gas is leaking.
[Tightening torque]
The sizes of the shutoff valves on each model and the tightening torque for each size are listed in the table below.
<Size of Shutoff Valve>
Note: Total refrigerant volume should be 100 kg or less
With siphon pipe
Other tanks
5HP type 8HP type 10HP type 12HP type 14HP type 16HP type 18HP type
Liquid side
shutoff valve
φ
9.5
The 12HP type corresponds to the 12.7-diameter onsite piping
using the included piping.
φ
12.7
The 18HP type corresponds to the 15.9-
diameter onsite piping using the accessory pipe.
Gas side
shutoff valve
φ
15.9
φ
19.1
φ
25.4
The 10HP type corresponds to the 22.2-diameter onsite piping using the
accessory pipe.
The 12 ~ 18HP type corresponds to the 28.6-diameter onsite piping using the
accessory pipe.
Stand the tank upright and charge.
(The siphon pipe goes all the way inside,
so the tank does not need be put
upside-down charge in liquid form.)
Stand the tank upside-down and charge.

Содержание

Скачать