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Precautions for Installation Using New
Refrigerant
1. Care regarding tubing
1-1. Process tubing
●
Material: Use C1220 phosphorous deoxidized copper
specified in JIS H3300 “Copper and Copper Alloy Seamless
Pipes and Tubes”.
●
Tubing size: Be sure to use the sizes indicated in the
table below.
●
Use a tube cutter when cutting the tubing, and be sure to
remove any flash. This also applies to distribution joints
(optional).
●
When bending tubing ø15.88 or smaller, use a bending
radius that is 4 times the outer diameter of the tubing or
larger.
CAUTION
Use sufficient care in handling the tubing. Seal the tubing
ends with caps or tape to prevent dirt, moisture, or other
foreign substances from entering. These substances can
result in system malfunction.
Unit: mm
Material
O
Copper tube
Outer diameter
6.35
9.52
12.7
15.88
Wall thickness
0.8
0.8
0.8
1.0
Material
1/2 H, H
Copper tube
Outer diameter
19.05
22.22
25.4
28.58
Wall thickness
1.0
1.0
1.0
1.0
1-2. Prevent impurities including water, dust and oxide from
entering the tubing. Impurities can cause R410A refrigerant
deterioration and compressor defects. Due to the features
of the refrigerant and refrigerating machine oil, the
prevention of water and other impurities becomes more
important than ever.
2. Be sure to recharge the refrigerant only in liquid form.
2-1. Since R410A is a non-azeotrope, recharging the refrigerant
in gas form can lower performance and cause defects of
the unit.
2-2. Since refrigerant composition changes and performance
decreases when gas leaks, collect the remaining
refrigerant and recharge the required total amount of new
refrigerant after fixing the leak.
3. Different tools required
3-1. Tool specifications have been changed due to the
characteristics of R410A.
Some tools for R22- and R407C-type refrigerant systems
cannot be used.
Item
New
tool?
R407C
tools
compatible
with
R410A?
Remarks
Manifold
gauge
Yes
No
Types of refrigerant,
refrigerating machine oil,
and pressure gauge are
different.
Charge
hose
Yes
No
To resist higher pressure,
material must be changed.
Vacuum
pump
Yes
Yes
Use a conventional vacuum
pump if it is equipped with
a check valve. If it has no
check valve, purchase and
attach a vacuum pump
adapter.
Leak
detector
Yes
No
Leak detectors for CFC
and HCFC that react to
chlorine do not function
because R410A contains
no chlorine. Leak detectors
for HFC134a can be used
for R410A.
Flaring oil
Yes
No
For systems that use R22,
apply mineral oil (Suniso
oil) to the flare nuts on the
tubing to prevent refrigerant
leakage. For machines
that use R407C or R410A,
apply synthetic oil (ether
oil) to the flare nuts.
* Using tools for R22 and R407C and new tools for R410A
together can cause defects.
3-2. Use R410A exclusive cylinder only.
Single-outlet valve
(with siphon tube)
Liquid refrigerant should be
recharged with the cylinder
standing on end as shown.
Manifold gauge
Vacuum pump
Outlet
Inlet
Valve
Liquid
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6
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Please Read Before Starting
Check of Density Limit
Precautions for Installation Using New Refrigerant
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-1.
Tools Required for Installation (not supplied)
1-2.
Accessories Supplied with Unit
1-3.
Type of Copper Tube and Insulation Material
1-4.
Additional Materials Required for Installation
1-5. Tubing
Size
2. SELECTING THE INSTALLATION SITE . . . . . . . . . . . . . . 8
2-1. Outdoor
Unit
2-2.
Air Discharge Chamber for Top Discharge
2-3.
Installing the Unit in Heavy Snow Areas
2-4.
Precautions for Installation in Heavy Snow Areas
2-5.
Dimensions of Snow / Wind-proof Ducting and
Refrigerant Tubing Space for Installation
3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . . . . 10
■
High Static Pressure Ducted Type (E1 Type) . . . . . . . . . . . 10
3-1.
Required Minimum Space for Installation and Service
(8, 10 Types)
3-2.
Suspending the Indoor Unit
3-3.
Installing the Refrigerant Tubing
3-4.
Installing the Drain Pipe
4. HOW TO INSTALL THE OUTDOOR UNIT . . . . . . . . . . . . 12
4-1.
Installing the Outdoor Unit
4-2. Drainage
Work
4-3.
Routing the Tubing and Wiring
5. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5-1.
General Precautions on Wiring
5-2.
Recommended Wire Length and Wire
Diameter for Power Supply System
5-3.
Wiring System Diagrams
6. HOW TO INSTALL THE TIMER REMOTE CONTROLLER
(OPTIONAL PART) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
N OT E
Refer to the Instruction Manual attached to the optional
Timer Remote Control Unit.
7. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . . . . 15
7-1.
Connecting the Refrigerant Tubing
7-2.
Connecting Tubing Between Indoor and
Outdoor Units
7-3.
Insulating the Refrigerant Tubing
7-4. Taping
the
Tubes
7-5.
Finishing the Installation
8. LEAK TEST, EVACUATION AND ADDITIONAL
REFRIGERANT CHARGE . . . . . . . . . . . . . . . . . . . . . . . . 19
■
Air Purging with a Vacuum Pump (for Test Run)
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8-1. Leak
Test
8-2. Evacuation
8-3.
Charging Additional Refrigerant
8-4.
Finishing the Job
9. TEST
RUN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9-1.
Preparing for Test Run
■
E1 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9-2. Caution
9-3.
Test Run Procedure
9-4.
Items to Check Before the Test Run
9-5.
Test Run Using the Remote Controller
9-6. Precautions
9-7.
Table of Self-Diagnostic Functions and
Corrections (E1 Type)
9-8. System
Control
9-9.
Test Run Procedure
9-10. Items to Check Before the Test Run
9-11. Preparation for Test Run
9-12. Test
Run
9-13. Precautions
9-14. Table of Self-Diagnostic Functions and Corrections
9-15. System
Control
■
E1 Type (for Link Wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9-16. Caution
9-17. Test Run Procedure
9-18. Items to Check Before the Test Run
9-19. Test Run Using the Remote Controller
9-20. Table of Self-Diagnostic Functions and
Corrections (E1 Type)
9-21. Automatic Address Setting
9-22. Automatic Address Setting
9-23. Caution for Pump Down
10. HOW TO INSTALL WIRELESS REMOTE
CONTROLLER RECEIVER . . . . . . . . . . . . . . . . . . . . . . . 40
N OT E
Refer to the Instruction Manual attached to the optional
Wireless Remote Controller Receiver.
11. MARKINGS FOR DIRECTIVE
97/23/EC (PED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
CONTENTS
Page Page
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Summary of Contents for U-200PE1E8
Page 2: ......
Page 24: ... NOTE EN FR DE IT PT GR ES 22 ...
Page 46: ... NOTE 44 GB FR DE IT PT GR ES SUPPLEMENT ...
Page 68: ... ANMERKUNGEN 66 GB FR DE IT PT GR ES SUPPLEMENT ...
Page 90: ... PROMEMORIA 88 GB FR DE IT PT GR ES SUPPLEMENT ...
Page 112: ...EN FR DE IT PT GR ES 110 NOTAS ...
Page 134: ... Σημεıωματάριο 132 GB FR DE IT PT GR ES SUPPLEMENT ...
Page 156: ...EN FR DE IT PT GR ES 154 NOTAS ...
Page 157: ......
