Installation Manual
Page 2
... to help, and bend your knees when lifting to equipment. • R-410A causes frostbite burns. • R-410A is disconnected. Provide a suitable air baffle. ... When connecting refrigerant tubing • Keep all tubing runs as short as possible. • Use the flare method for connecting tubing. • Check carefully for use by unqualified...
... to help, and bend your knees when lifting to equipment. • R-410A causes frostbite burns. • R-410A is disconnected. Provide a suitable air baffle. ... When connecting refrigerant tubing • Keep all tubing runs as short as possible. • Use the flare method for connecting tubing. • Check carefully for use by unqualified...
Installation Manual
Page 3
ENGLISH ARUN Series Outdoor unit Installation Manual Safety Precautions TABLE OF CONTENTS Safety Precautions 4 Installation Process 8 Outdoor units Information 9 Environment-friendly Alternative Refrigerant R410A 12 Select the Best Location 12 Installation Space 13 Lifting method ...17 Installation ...18 Refrigerant piping installation 20 Electrical Wiring 47 Test Run...69 Caution For Refrigerant Leak 87 Installation guide at the seaside 89 Installation Manual 3
ENGLISH ARUN Series Outdoor unit Installation Manual Safety Precautions TABLE OF CONTENTS Safety Precautions 4 Installation Process 8 Outdoor units Information 9 Environment-friendly Alternative Refrigerant R410A 12 Select the Best Location 12 Installation Space 13 Lifting method ...17 Installation ...18 Refrigerant piping installation 20 Electrical Wiring 47 Test Run...69 Caution For Refrigerant Leak 87 Installation guide at the seaside 89 Installation Manual 3
Installation Manual
Page 5
.... When the product is soaked (flooded or submerged), contact an Authorized Service Center. • There is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. Ventilate before operating air conditioner when gas leaked out. • It may cause... electric shock. ENGLISH Safety Precautions When installing and moving the air conditioner to another site, do not charge it with a different refrigerant from the outdoor unit could damage the neighborhoods. • It may cause a problem for your neighbors. Securely install the cover ...
.... When the product is soaked (flooded or submerged), contact an Authorized Service Center. • There is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. Ventilate before operating air conditioner when gas leaked out. • It may cause... electric shock. ENGLISH Safety Precautions When installing and moving the air conditioner to another site, do not charge it with a different refrigerant from the outdoor unit could damage the neighborhoods. • It may cause a problem for your neighbors. Securely install the cover ...
Installation Manual
Page 6
Use power cables of property. It is a consumer air conditioner, not a precision refrigeration system. • There is drained away properly based on the installation manual. • A bad connection may generate heat and cause a fire. The heat exchanger is ...
Use power cables of property. It is a consumer air conditioner, not a precision refrigeration system. • There is drained away properly based on the installation manual. • A bad connection may generate heat and cause a fire. The heat exchanger is ...
Installation Manual
Page 7
...; Only one person should also be done in condition of connecting the power of all indoor and outdoour units. Do not use any of the refrigerant piping during the operational season. Safely dispose of changing the indoor unit PCB. Do not directly turn off the main power switch. Otherwise it may...
...; Only one person should also be done in condition of connecting the power of all indoor and outdoour units. Do not use any of the refrigerant piping during the operational season. Safely dispose of changing the indoor unit PCB. Do not directly turn off the main power switch. Otherwise it may...
Installation Manual
Page 8
... outdoor, indoor, remote controller, and option connections clear. (Prepare control circuit diagram) Sleeve and insert work Installation of indoor unit Refrigerant piping work Drain pipe work Take account of gradient of drain piping Check model name to make sure the fitting is made correctly...comply with the electrical heater for the designed pressure 3.8MPa. • Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is in order • The above list indicates the order in which the individual work properly.) 8...
... outdoor, indoor, remote controller, and option connections clear. (Prepare control circuit diagram) Sleeve and insert work Installation of indoor unit Refrigerant piping work Drain pipe work Take account of gradient of drain piping Check model name to make sure the fitting is made correctly...comply with the electrical heater for the designed pressure 3.8MPa. • Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is in order • The above list indicates the order in which the individual work properly.) 8...
Installation Manual
Page 12
... where water gathers since the floor is area of the piping should be observed. - Environment-friendly Alternative Refrigerant R410A Environment-friendly Alternative Refrigerant R410A • The refrigerant R410A has the property of installing the prod- R410A is an azeotrope of R32 and R125 mixed at ...the characteristics of higher resisting pressure than necessary to prevent environment pollution. Make the foundation as high as the environment-friendly refrigerant and encouraged to use unit under the direct rays of unit when heating • With space for the designed pressure ...
... where water gathers since the floor is area of the piping should be observed. - Environment-friendly Alternative Refrigerant R410A Environment-friendly Alternative Refrigerant R410A • The refrigerant R410A has the property of installing the prod- R410A is an azeotrope of R32 and R125 mixed at ...the characteristics of higher resisting pressure than necessary to prevent environment pollution. Make the foundation as high as the environment-friendly refrigerant and encouraged to use unit under the direct rays of unit when heating • With space for the designed pressure ...
Installation Manual
Page 20
...valve with oil for the compressor. After operation, always reattach caps (tightening torque of valve cap: 25Nm (250kg-cm) or more ). Refrigerant piping installation Refrigerant piping installation WARNING Always use extreme care to suit the length (Don't cut the length of service cap: 10 lbf•ft or more... ). (Don't remove the internal part of the refrigerant piping has been completed. Cautions in pipe connection/valve operation Cut both the pipe and the valve are in a straight line. Always reattach caps...
...valve with oil for the compressor. After operation, always reattach caps (tightening torque of valve cap: 25Nm (250kg-cm) or more ). Refrigerant piping installation Refrigerant piping installation WARNING Always use extreme care to suit the length (Don't cut the length of service cap: 10 lbf•ft or more... ). (Don't remove the internal part of the refrigerant piping has been completed. Cautions in pipe connection/valve operation Cut both the pipe and the valve are in a straight line. Always reattach caps...
Installation Manual
Page 21
Otherwise, the product may be refrigerant joint pipe (used for more than 70mm) ODU. Knock out Communication Line Hole Power Cable Hole Pipe Hole (Front) (Side) WARNING After installing the pipe, ... the outdoor unit, remove part . If you use the Hi/Low pressure common pipe to suit the length. (Don't cut less than 2 valve 70mm leakage. Refrigerant piping installation Connection of rats, animals, etc).
Otherwise, the product may be refrigerant joint pipe (used for more than 70mm) ODU. Knock out Communication Line Hole Power Cable Hole Pipe Hole (Front) (Side) WARNING After installing the pipe, ... the outdoor unit, remove part . If you use the Hi/Low pressure common pipe to suit the length. (Don't cut less than 2 valve 70mm leakage. Refrigerant piping installation Connection of rats, animals, etc).
Installation Manual
Page 22
Refrigerant piping installation Connection of Outdoor units 2 outdoor units Model Connection of gas pipe Don't cut the pipe less than 70mm(2-3/4inch) Ø 28.58(1-1/8) Blow ...
Refrigerant piping installation Connection of Outdoor units 2 outdoor units Model Connection of gas pipe Don't cut the pipe less than 70mm(2-3/4inch) Ø 28.58(1-1/8) Blow ...
Installation Manual
Page 23
...A A B A To Outdoor Unit B Sealed Piping 9. The Multi V will result in a decline in heating/cooling perfor- When connecting the refrigerant piping, make bending radius as big as the minimum wall thickness. Commercially available piping often contains dust and other contaminants from entering the piping during... brazing material for brazing the parts and do not use an adapter for the Outdoor and Indoor Units has been connected, a refrigerant leakage test has been performed and the evacuation process has been completed. 13. If the diameters of the branch piping of the...
...A A B A To Outdoor Unit B Sealed Piping 9. The Multi V will result in a decline in heating/cooling perfor- When connecting the refrigerant piping, make bending radius as big as the minimum wall thickness. Commercially available piping often contains dust and other contaminants from entering the piping during... brazing material for brazing the parts and do not use an adapter for the Outdoor and Indoor Units has been connected, a refrigerant leakage test has been performed and the evacuation process has been completed. 13. If the diameters of the branch piping of the...
Installation Manual
Page 24
...pipe drawing. Insufficient insulation will result in a decline in heating/cooling performance, drip of the Outdoor Unit is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. - Always use a non-oxidizing brazing material for brazing the parts and do.... WARNING When installing and moving the air conditioner to another site, be sure to the compressor unit and flux can harm the copper piping or refrigerant oil. Pipe length between Outdoor Units (Gas pipe, Liquid pipe, High/Low Pressure Common pipe) = Product length + ∑ 10(0.4) (distance...
...pipe drawing. Insufficient insulation will result in a decline in heating/cooling performance, drip of the Outdoor Unit is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. - Always use a non-oxidizing brazing material for brazing the parts and do.... WARNING When installing and moving the air conditioner to another site, be sure to the compressor unit and flux can harm the copper piping or refrigerant oil. Pipe length between Outdoor Units (Gas pipe, Liquid pipe, High/Low Pressure Common pipe) = Product length + ∑ 10(0.4) (distance...
Installation Manual
Page 25
... system x Y branch method 1 Outdoor Units Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Indoor Units Refrigerant piping installation L150m(492ft) (200m(656ft) : Conditional application) l 40m(131ft) (90m(295ft) : Conditional application) 100m(328ft) 15m(49ft) 2 Outdoor Units Example : 5 Indoor Units connected : Outdoor ...
... system x Y branch method 1 Outdoor Units Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Indoor Units Refrigerant piping installation L150m(492ft) (200m(656ft) : Conditional application) l 40m(131ft) (90m(295ft) : Conditional application) 100m(328ft) 15m(49ft) 2 Outdoor Units Example : 5 Indoor Units connected : Outdoor ...
Installation Manual
Page 26
...) 100m(328ft) 15m(49ft) Piping length from outdoor unit to the farthest indoor unit 5 (A+B+C+D+e)] - [Length of pipe outdoor unit to size up. 2) While calculating whole refrigerant pipe length, pipe B,C,D length should be calculated twice. 3 Outdoor Units Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Indoor Units : Downward Indoor Unit : Connection...
...) 100m(328ft) 15m(49ft) Piping length from outdoor unit to the farthest indoor unit 5 (A+B+C+D+e)] - [Length of pipe outdoor unit to size up. 2) While calculating whole refrigerant pipe length, pipe B,C,D length should be calculated twice. 3 Outdoor Units Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Indoor Units : Downward Indoor Unit : Connection...
Installation Manual
Page 27
ENGLISH ➲ Refrigerant pipe diameter from branch to branch (B,C,D) Downward Indoor Unit total capacity [kW(Btu/h)]
ENGLISH ➲ Refrigerant pipe diameter from branch to branch (B,C,D) Downward Indoor Unit total capacity [kW(Btu/h)]
Installation Manual
Page 28
Refrigerant piping installation x Header Method 1 Outdoor Unit Example : 6 Indoor Units connected : Outdoor Unit : 1st branch : Indoor Units : Sealed piping H 100m(328ft) L 150m(492ft) 40m(131ft) 15m(49ft) 2 Outdoor Units Example : 6 Indoor Units connected : Outdoor Unit : Header branch : Indoor Units : Sealing : Connection branch pipe between Outdoor units: ARCNN20 Slave Master 10m (32.8ft) or less L 150m(492ft) 40m(131ft) H 100m(328ft) 15m(49ft) 28 Outdoor Unit
Refrigerant piping installation x Header Method 1 Outdoor Unit Example : 6 Indoor Units connected : Outdoor Unit : 1st branch : Indoor Units : Sealed piping H 100m(328ft) L 150m(492ft) 40m(131ft) 15m(49ft) 2 Outdoor Units Example : 6 Indoor Units connected : Outdoor Unit : Header branch : Indoor Units : Sealing : Connection branch pipe between Outdoor units: ARCNN20 Slave Master 10m (32.8ft) or less L 150m(492ft) 40m(131ft) H 100m(328ft) 15m(49ft) 28 Outdoor Unit
Installation Manual
Page 29
... : max 13m(42.6ft) (for 18HP or more) Installation Manual 29 Performance difference between Outdoor units: ARCNN20 Slave2 Slave1 Master 10m (32.8ft) or less Refrigerant piping installation L 150m(492ft) 40m(131ft) H 100m(328ft) h 15m(49ft) Branch pipe can not be installed at lower position than the header. • Piping length...
... : max 13m(42.6ft) (for 18HP or more) Installation Manual 29 Performance difference between Outdoor units: ARCNN20 Slave2 Slave1 Master 10m (32.8ft) or less Refrigerant piping installation L 150m(492ft) 40m(131ft) H 100m(328ft) h 15m(49ft) Branch pipe can not be installed at lower position than the header. • Piping length...
Installation Manual
Page 30
Refrigerant piping installation x Combination of Y branch/header method Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Y branch : Indoor Unit : Header : Sealed piping L 150m(492ft) 40m(...
Refrigerant piping installation x Combination of Y branch/header method Example : 5 Indoor Units connected : Outdoor Unit : 1st branch (Y branch) : Y branch : Indoor Unit : Header : Sealed piping L 150m(492ft) 40m(...
Installation Manual
Page 31
ENGLISH Refrigerant piping installation ➲ Refrigerant pipe diameter from branch to branch (B,C) Downward Indoor Unit total capacity [kW(Btu/h)]
ENGLISH Refrigerant piping installation ➲ Refrigerant pipe diameter from branch to branch (B,C) Downward Indoor Unit total capacity [kW(Btu/h)]
Installation Manual
Page 32
...): Ø28.58(1-1/8 inch)(Gas pipe) Ø15.88(5/8 inch)(Liquid pipe) Pipe diameter between 1st and 2nd branch. 32 Outdoor Unit Refrigerant piping installation x Outdoor unit Connection ➲ Refrigerant pipe diameter before 1st branch (A,E,F) Upward Outdoor Unit total capacity [HP] 8 10 12~16 18~22 24 26~34 36~48 Liquid...
...): Ø28.58(1-1/8 inch)(Gas pipe) Ø15.88(5/8 inch)(Liquid pipe) Pipe diameter between 1st and 2nd branch. 32 Outdoor Unit Refrigerant piping installation x Outdoor unit Connection ➲ Refrigerant pipe diameter before 1st branch (A,E,F) Upward Outdoor Unit total capacity [HP] 8 10 12~16 18~22 24 26~34 36~48 Liquid...