Panasonic CZ-ESWC2 Manual de instalación Pagina 55
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3. Cutting and Flaring of Liquid Tube
After determining the position for installation, cut the liquid tube and fl are the connecting portion.
(Pay attention to the notes below when fl aring the tubes.)
NOTE
After cutting the tube, deburr and fi nish the end face smoothly and correctly.
●
Do not damage tubes while fl aring.
●
Take care not to allow dirt and deburred chips into the tube.
●
Use the fl are nut which came with External Electronic Expansion Valve Kit.
●
The fl aring dimensions for R410A are different from the conventional dimensions for R407C and R22. For R410A,
●
the specially created fl aring tool is recommended. However a conventional tool can be used by adjusting the amount
of copper tube projection as shown in the table below.
Unit : in.
Rigid (clutch type)
R410A R407C, R22
If special R410A
tool is used
If conventional
tool is used
If conventional
tool is used
B = 0 - 1/64 3/64 - 1/16 0 - 1/64
4. Connection of External Electronic Expansion Valve with Tubing
In connection with tubing, take care to fi t the external electronic expansion valve in the right direction.
Be sure to install with the mark on the label pointing upwards. Also when connecting the fl are, use the arrow marks
on the label to check the directions of the indoor unit side and outdoor unit side.
(The wiring outlet side faces the indoor unit.) (Refer to Fig. 3-172.)
MUST BE INSTALLED AS ARROWS.
SERIAL NO.
SOURCE
EXTERNAL ELECTRONIC EXPANSION VALVE KIT
Do not exceed
10 degrees
Do not exceed
10 degrees
UP
INDOOR
SIDE
OUTDOOR
SIDE
Do not exceed
10 degrees
Do not exceed
10 degrees
Attached label on the unit
Fig. 3-172
Tubing size Tightening torque
1/4" (Ø6.35)
120 - 160 lbs • inch
(140 - 180 kgf • cm)
3/8" (Ø9.52)
300 - 360 lbs • inch
(340 - 420 kgf • cm)
B
Copper tube projection for flaring: B (in.)
Fig. 3-171
Tightening fl are nuts
●
CAUTION
Be sure to use 2 spanners together when removing or tightening
the fl are nuts. After connection with the tubing, tighten the fl are
nuts by the correct torque. Failure to tighten the nuts correctly
can cause loosening and damage on the fl ared portion, resulting
in accidents by oxygen defi ciency due to refrigerant leaks.
VRF_Indoor_US.indb 55VRF_Indoor_US.indb 55 2011/09/30 12:23:112011/09/30 12:23:11
- INSTALLATION INSTRUCTIONS 1
- IMPORTANT! 2
- Please Read Before Starting 2
- Check of Density Limit 3
- CONTENTS 4
- 1. GENERAL 5
- Table 1-1 (4-Way Cassette) 6
- Table 1-2 (1-Way Cassette) 6
- Table 1-5 (Ceiling) 7
- Table 1-6 (Wall Mounted) 7
- Min.8 ft 9
- Hole-in-anchor 10
- Hole-in-plug 10
- Concrete Inser t 10
- (field supply) 10
- Unit: in. (mm) 11
- Upward gradient prohibited 12
- Support 12
- Main unit 13
- Ceiling side 13
- Air leakage 14
- Staining 14
- Condensation, water leakage 14
- Mains side 15
- Drain insulator (supplied) 24
- Dimension 30
- No. of holes 30
- Support pieces 32
- Inter-unit control wiring 33
- Power supply outlet 33
- Indoor control board 40
- 36 Type 48 Type 43
- H: At shipment 43
- Ceiling tiles 45
- Ceiling suppor t 45
- Slide toward 46
- Side panel 46
- Approx 46
- Rear outlet port 47
- 5-33/64 48
- 63/64 63/64 48
- MUST BE INSTALLED AS ARROWS 55
- Outdoor sideIndoor side 56
- Clamp (large) 56
- Gas tube 56
- Liquid tube 56
- Horizontal view Vertical view 58
- Front panel 60
- 4. ELECTRICAL WIRING 63
- L1 L2 U1 U2 R1 R2 64
- F1 TypeD1 Type 67
- P1, R1 Type 68
- 5. HOW TO PROCESS TUBING 71
- Flare nut 72
- Drain horse 74
- Insulated tubes 74
- Apply putty here 74
- 6. APPENDIX 75
- (depending on fi lter 76
- Two weeks Two weeks 76
- DC0811-10911 84
- Printed in Japan 84
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