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DAIKIN
SPLIT SYSTEM AIR CONDITIONER
INSTALLATION MANUAL <FOR OUTDOOR UNIT>
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
NEW REFRIGERANT (R32) SERIES
RZCA
1
2
5
AV
1
6, RZCA
1
40AV
1
6
Note :
cm
Read the precautions in this manual carefully before operating the unit.
This appliance is filled with R32.
CONTENTS
*
SAFETY PRECAUTIONS ................................................................................................................................... 32
1. BEFORE INSTALLATION ................................................................................................................................... 34
2. SELECTING INSTALLATION SITE .................................................................................................................... 34
3. INSTALLATION SERVICE SPACE .................................................................................................................... 35
4. PRECAUTIONS ON INSTALLATION ................................................................................................................. 38
5. REFRIGERANT PIPING WORK ......................................................................................................................... 38
6. AIRTIGHTNESS TEST AND AIR-PURGE .......................................................................................................... 42
7. CHARGING THE REFRIGERANT ..................................................................................................................... 42
8. ELECTRICAL WIRING WORK ............................................................................................................................... 43
9. CHECK ITEMS BEFORE TEST OPERATION AND FIELD SETTINGS ................................................................ 46
10. TEST OPERATION .......................................................................................................................................... .47
11. CAUTION ......................................................................................................................................................... .48
12. HOW TO RE-USE THE EXISTING PIPING ...................................................................................................... 49
13. REFRIGERANT RECOVERY ........................................................................................................................... 50
14. UNPACKING & PACKING INSTRUCTION OF OUTDOOR UNIT ........................................................................ 51
� WARNING THERE IS A RISK OF EXPLOSION OR FIRE
• Do not mix air in the refrigerating cycle during pump down operation.
• Do not use oxygen for air tight test.
• Do not use refrigerant other than the specified one or flammable material ( e.g. propane ) in the refrigerant cycle.
They may cause over pressure in the refrigerating cycle and result in explosion, fire or injury.
Our company assumes no responsibility for failure or malfunction caused by filling or mixing of anything other than
the specified refrigerant.
� CAUTION ABOUT ISOLATING RESISTANCE OF COMPRESSOR
If refrigerant accumulates in the compressor after completing installation, the insulation resistance can drop, but if it
at least 1 MO, then the unit will not break down.
• Connect the power supply to the unit and after 6 hours check if the insulation resistance of the compressor rises.
(Energize and heat the compressor to vaporize the refrigerant accumulated in the compressor.)
• If the earth leakage breaker actuates, check if the earth leakage breaker is equipped with a device to cope with high
harmonics. To prevent wrong actuation of the earth leakage breaker due to the inverter, make sure to adopt
an earth leakage breaker equipped with a device to cope with high harmonics.
1. Please make sure to confirm that R32 (new refrigerant) is used in installation work in advance.
(It may not operate normally, if refrigerant type is different.)
2. The refrigerant R32 requires that strict precautions be observed for keeping the system clean, dry and tightly sealed.
- Clean and dry
Strict measures must be taken to keep impurities (Including SUNISO oil and other mineral oils as well as moisture)
out of the system.
- Tightly sealed
R32 contains no chlorine, does not destroy the ozone layer and so does not reduce the earth's protection against
harmful ultraviolet radiation. R32 will contribute only slightly to the greenhouse effect if released into the atmosphere.
Therefore, sealing tightness is particularly important in installation.
Carefully read the chapter
0
REFRIGERANT PIPING WORK)
and strictly observe the correct procedures.
3. The design pressure of this unit : High/Low pressure area are shown in the right table.
The refrigerant piping is a high pressure area,
Use the refrigerant piping which supports the design pressure.
The piping specifications, please refer to chapter
0
REFRIGERANT PIPING WORK)
4. Be sure to connect the indoor unit, which is dedicated to R32. See the catalog for
indoor unit models which can be connected.
(Normal operation is not possible when connected to other units.)
32
Outdoor Unit
Design Pressure
RZCA125AV16
High
4.15
RZCA140AV16
Low
3.30
Summary of Contents for FCA125AV16
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