Table Of Contents - Daikin RZQ20KCVJK Installation Manual

01_EN_3P281953-1B.fm Page 1 Tuesday, January 25, 2011 3:35 PM
RZQ20KCVJK
RZQ24KCVJK
RZQ36KCVJK
RZQ45KCVJK
1. SAFETY PRECAUTIONS...............................................................................................2
2. BEFORE INSTALLATION ..............................................................................................4
3. SELECTING INSTALLATION SITE................................................................................5
4. INSTALLATION SERVICING SPACE ............................................................................6
5. PRECAUTIONS ON INSTALLATION...........................................................................10
6. REFRIGERANT PIPING WORK ..................................................................................12
7. EVACUATING ..............................................................................................................19
8. REFILLING THE REFRIGERANT ................................................................................20
9. ELECTRICAL WIRING WORK.....................................................................................22
10. ON SITE SETTING AND CHECK ITEMS BEFORE TEST RUN..................................26
11. ON SITE SETTINGS ....................................................................................................27
12. TEST RUNS .................................................................................................................28
IMPORTANT: INSULATION RESISTANCE OF THE COMPRESSOR
If, after installation, refrigerant accumulates in the compressor, the insulation resistance can drop, but if it is
at least 1 MΩ, then the machine will not break down.
• Turn on the power and leave it on for six hours. Then, check to see if the insulation resistance of the
compressor has risen or not.
The compressor will heat up and evaporate any refrigerant in the compressor.
Check the following items if the earth leakage breaker is triggered.
• Make sure that the interrupter is compatible with harmonics.
This unit has an inverter, so an interrupter capable of handling harmonics is needed to prevent malfunction
of the interrupter itself.
1. This unit uses R410A as a refrigerant. For R410A refrigerant, the entry of any impurities (mineral oils such
as SUNISO oil and liquids) must be prevented more strictly. Be sure to follow the precautions in chapter
6-1 PRECAUTIONS ON REFRIGERANT PIPING.
2. The design pressure of this unit high pressure area is 4.00 MPa, and the low pressure area is 2.21 MPa.
The local inter-unit piping is a high pressure area. Use a local inter-unit piping which supports the design
pressure. For the piping specifications, please refer to chapter 6. REFRIGERANT PIPING WORK.
3. R410A is a mixed refrigerant. Be sure to charge additional refrigerant as liquid.
(Charging the additional refrigerant as gas will change the refrigerant composition and prevent normal
operation.)
Be sure to connect a R410A indoor unit.
See the catalog for indoor unit models which can be connected.
(Normal operation is not possible when connected to other units.)
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RZQ45LUYAK
RZQ48LUYAK
CONTENTS
SPLIT SYSTEM Air Conditioner Installation manual
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