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Daikin RQYQ18PY1 [10/20] English
![Daikin RQYQ18PY1 [10/20] English](/views2/1718490/page10/bga.png)
5 English
6-2 Protection against contamination
when installing pipes
Protect the piping to prevent moisture, dirt, dust, etc. from
entering the piping.
Note
Exercise special caution to prevent dirt or dust when passing pip-
ing through holes in walls and when passing pipe edges to the
exterior.
6-3 Pipe connection
• Be sure to perform nitrogen permutation or nitrogen blow
when brazing. (Refer to figure 10)
Brazing without performing nitrogen permutation or nitrogen
blow into the piping will create large quantities of oxidized film
on the inside of the pipes, adversely affecting valves and com-
pressors in the refrigerating system and preventing normal
operation.
(Refer to figure 10)
1. Refrigerant pipe
2. Location to be brazed
3. Nitrogen
4. Taping
5. Handy valve
6. Regulator
• The pressure regulator for the nitrogen released when doing
the brazing should be set to 0.02 MPa (about 0.2kg/cm
2
:
Enough to feel a slight breeze on your cheek).
Note
Do not use anti-oxidants when brazing the pipe joints.
Residue can clog pipes and break equipment.
6-4 Connecting the refrigerant piping
1.
Direction to bring out the pipes
The local interunit piping can be connected either forward or to
the sides (taken out through the bottom) as shown in the figure 11.
(When passing out through the bottom, use the knock hole in the
bottom frame.)
(Refer to figure 11)
1. Left-side connection
2. Front connection
3. Right-side connection
Precautions when knocking out knock holes
• Open knock hole in the base frame by drilling the 4 concave
around it with a 6mm bit. (Refer to figure 12)
(Refer to figure 12)
1. Knock hole
2. Drill
3. Concave section
• Be sure to avoid damaging the casing
• After knocking out the holes, we recommend you remove any
burrs and paint them using the repair paint to prevent rusting.
• When passing electrical wiring through the knock holes, protect
the wiring with a conduit or bushings, making sure not to damage
the wiring.
2.
Removing Pinch Piping
• When connecting refrigerant piping to an outdoor unit, remove
the pinch piping. (Refer to figure 13)
• Pinch piping should be removed using the procedure in the fig-
ure 13.
(Refer to figure 13)
1. Shutoff valve (liquid side · gas side)
2. Service port
3. Pinch piping
4. Procedure 1:
Confirm the shutoff valve is closed.
5. Procedure 2:
Connect a charge hose to the service port of the liquid
side and gas side shutoff valves and remove the gas
from the pinch piping.
6. Procedure 3:
After removing the gas from the pinch piping, dissolve
the brazing using a burner and remove the pinch piping.
CAUTION
After removing the gas, remove the pinch piping.
Any gas remaining inside may blow off the pinch piping when you dis-
solve the brazing, causing damage.
3.
Connecting refrigerant piping to outdoor units
<In case of single system: Q8~16 type>
(Refer to figure 14)
1. If connected to the front
2. When connected at lateral side (bottom)
3. Remove the shutoff valve cover to connect.
4. Remove the knock hole on the bottom frame and route
the piping under the bottom frame.
5. Gas side shutoff valve
6. Liquid side shutoff valve
7. Refrigerant charge port
8. Brazing
9. Liquid side accessory pipe (1)
10. Gas side accessory pipe (1)
11. Gas side accessory pipe (2)
12. Liquid side accessory pipe (2)
13. Knockout hole
14. Punch the knock hole.
15. Gas side piping (field supply)
16. Liquid side piping (field supply)
Processing the Gas side accessory pipe (2)
Only in case of connecting at lateral side, cut the Gas side acces-
sory pipe (2) referring the figure below.
(mm)
<In case of multi system: RQYQ18~48PY1>
(Refer to figure 15)
1. If connected to the front
2. When connected at lateral side (bottom)
3. Remove the shutoff valve cover to connect.
4. Remove the knock hole on the bottom frame and route
the piping under the bottom frame.
5. Gas side shutoff valve
6. Liquid side shutoff valve
7. Refrigerant charge port
8. Brazing
9. Liquid side accessory pipe (1)
10. Gas side accessory pipe (1)
11. Gas side accessory pipe (2)
12. Liquid side accessory pipe (2)
Place Installation period Protection method
Outdoor
More than a month Pinch the pipe
Less than a month
Pinch or tape the pipe
Indoor Regardless of the period
Model A B C D
Q8 type 156 17 188 247
Q10 type 156 23 192 247
Q12 type 150 29 192 247
Q14 · 16 type 150 29 192 251
C
A
A
B25
90150
D
Cutting
location
Gas side
accessory
pipe (2)
Gas side accessory pipe (2)
Gas side piping
(field supply)
Base
Содержание
- Installation manual 1 1
- System air conditioner 1
- Ve upq series 1
- Figure 1 3
- Figure 10 figure 11 figure 12 figure 13 3
- Figure 14 3
- Figure 15 3
- Figure 2 3
- Figure 3 3
- Figure 4 3
- Figure 5 3
- Figure 6 3
- Figure 7 3
- Figure 8 3
- Figure 9 3
- Figure 16 4
- Figure 17 4
- Figure 18 4
- Figure 19 figure 20 4
- Figure 21 4
- Figure 22 4
- Figure 23 4
- Figure 24 4
- Figure 25 4
- Figure 26 4
- Figure 27 5
- Figure 28 5
- Figure 29 figure 30 5
- Figure 31 figure 32 5
- Figure 33 5
- Figure 34 5
- 1 safety precautions 6
- Contents 6
- English 6
- First of all 6
- Installation manual 6
- 1 combination 7
- 2 special notice of product 7
- 3 disposal requirements 7
- English 2 7
- Introduction 7
- 2 standard supplied accessories 8
- 3 option accessory 8
- 4 technical and electrical specifications 8
- 5 main components 8
- 6 installation process 8
- English 8
- Selection of location 8
- 1 selection of piping material and refrigerant branching kit 9
- English 4 9
- Inspecting and handling the unit 9
- Placing the unit 9
- Refrigerant piping 9
- 2 protection against contamination when installing pipes 10
- 3 pipe connection 10
- 4 connecting the refrigerant piping 10
- A b 25 10
- Cutting location 10
- English 10
- Gas side accessory pipe 2 10
- Gas side piping field supply 10
- Change as shown in the figure below rising height 200 mm or more 11
- Change to pattern 1 or pattern 2 11
- English 6 11
- Front connections 11
- If 2 m or more 11
- If less than 2m 11
- Less than 2m 11
- M or more 11
- Oil remains in the stopping outdoor unit 11
- Outdoor unit gas pipe 11
- Pattern 1 11
- Pattern 2 11
- Prohibited pattern 11
- To indoor unit 11
- Unit a 11
- Unit b 11
- 1 power circuit safety device and cable requirements 12
- 2 wiring connection example for whole system 12
- 3 leading wire procedure 12
- English 12
- Field wiring 12
- 4 transmission wiring connection procedure 13
- 5 power wiring connection procedure 13
- English 8 13
- Power wire crimp style terminal 13
- 1 preparations 14
- 2 air tight test and vacuum drying method 14
- 6 procedure for wiring inside units 14
- Air tight test and vacuum dry ing 14
- Air tight test and vacuum drying 14
- Crimp style terminal 14
- Cup washer 14
- Cut out section 14
- English 14
- R410a label 14
- Resin hook 14
- Terminal block crip style terminal wire narrow wire thick 14
- 1 before working 15
- Additional refrigerant charge and check operation 15
- Checking of device and instal lation conditions 15
- Checking of device and installation conditions 15
- English 10 15
- Pipe insulation 15
- 2 procedure of adding refrigerant charging and check operation 17
- English 12 17
- 1 before test run 18
- 1 onsite settings with the power off 18
- 2 onsite settings with the power on 18
- 2 test run 18
- 3 checks after test run 18
- Caution for refrigerant leaks 18
- English 18
- Onsite settings 18
- Test run 18
- English 14 19
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