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说明书归档首页
说明书编号： P01604Q
编制说明
（首版编制时
请填写）
变更履历
（变更说明书
时请填写）
本次变更
内容简述
备注
■ 全新编制
□ 衍生机型
□ 临时对应
签字区
设计：
审核：
标准化：
批准
标记
管理编号：
1
BZ/KF-1901-190
×2
BZ/KF-1906-020
×3
2
BZ/KF-1909-013
×2
3
BZ/KF-2007-157
×2
4
BZ/KF-2012-064
×2
5
BZ/KF-2103-282
×1
6
BZ/KF-2112-117
×4
7
变更内容简要描述
增加CE声明页
将方形格栅更换为圆形格栅。
增加RAS-4.5~6.0HNSKQ结构图
删除高压压力开关动作压力值的偏差，只保留基本尺寸
80879469
担当联络方式
说明书封面材质
100g 双胶纸 说明书内页材质
说明书图幅
A4
适用产品序列：
SETFREE MINI HNSKQ Series
适用机型系列：
衍生产品序列：
衍生机型系列：
源产品序列：
源机型系列：
源说明书编号：
对应简要说明：
源说明书编号：
签名
日期：
2019-1-28
2019-06-04 杨远强
2019-09-20 李东哲
2020-07-15
2021-03-17 张凯强
2021-04-01 张凯强
2021-12-20 李鹏飞
邮箱
是否彩色印刷
V08
版本号：
RAS-3.0~7.0HNSKQ
日期
更改：
审核：
杨远强
杜永
杜永
宋振兴
何成军
张凯强
何成军
何成军
陈卫星
涉及页码
页
25、28、34、35
7
42
lipengfei14@hisensehitachi. com
70g 双胶纸
否
版本号：
批准：
孙龙
孙龙
孙龙
林文涛
林文涛
林文涛
宋振兴
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Table of Contents
Related Manuals for Hitachi RAS-3.0HNSKQ
Summary of Contents for Hitachi RAS-3.0HNSKQ
- Page 1 说明书归档首页 说明书编号： P01604Q 版本号： 适用产品序列： SETFREE MINI HNSKQ Series ■ 全新编制 适用机型系列： RAS-3.0~7.0HNSKQ 衍生产品序列： 衍生机型系列： □ 衍生机型 编制说明 源产品序列： （首版编制时 源机型系列： 请填写） 源说明书编号： 版本号： 对应简要说明： □ 临时对应 源说明书编号： 签字区 签名 日期 设计： 审核： 标准化： 批准 标记 管理编号： 日期： 更改： 审核： 批准：...
- Page 2 Original Instruction & Maintenance Manual HITACHI AIR RAS-3.0~4.0HNSKQ CONDITIONER OUTDOOR UNIT - SET FREE mini-HNSKQ series - Models: Outdoor Units： RAS-3.0HNSKQ RAS-3.5HNSKQ RAS-4.0HNSKQ RAS-4.5HNSKQ RAS-4.5~6.0HNSKQ RAS-5.0HNSKQ RAS-6.0HNSKQ RAS-6.5HNSKQ RAS-7.0HNSKQ IMPORTANT: READ AND UNDERSTAND THIS MANUAL BEFORE RAS-6.5~7.0HNSKQ USING THIS HEAT-PUMP AIR CONDITIONERS.
- Page 4 Declaration of Conformity (Manufacturer’s Declaration) Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd. Add.： No. 218, Qianwangang Road, Economic and Technological Development Zone, Qingdao, China declares under its sole responsibility that the air conditioning models to which this declaration relates: RAS-3.0HNSKQ RAS-3.5HNSKQ...
- Page 6 IMPORTANT NOTICE The Company pursues a policy of continuing improvement in design and performance of products. The right ◆ is therefore reserved to vary any specifications without prior notice. The Company cannot anticipate every possible circumstance that might involve a potential hazard. ◆...
- Page 7 CHECKING PRODUCT RECEIVED Upon receiving this product, inspect it for any shipping damages in transit. Claims for damage, either ◆ apparent or concealed, should be filed immediately with the shipping company. Check the model number, electrical characteristics (power supply, voltage and frequency rating) and ◆...
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Page 8: Table Of Contents
TABLE OF CONTENTS SAFETY SUMMARY ..........................1 Before Installation ..........................4 Necessary Tools and Instrument List for Installation ..............4 Structure ............................6 Refrigerant Cycle Diagram ......................9 Model of Indoor Unit and Outdoor Unit..................9 Transportation ........................... 11 Factory-Supplied Accessories ....................11 Outdoor Unit Installation ........................ -
Page 10: Safety Summary
1. SAFETY SUMMARY <Signal Words> Signal words are used to identify levels of hazard seriousness. ◆ Definitions for identifying hazard levels are provided below with their respective signal words. ◆ DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. - Page 11 Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring ◆ connection without referring to our installation manual. If the instructions are not followed, it may result in a water leakage, electric shock or a fire. Use the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle.
- Page 12 Do not install the unit in a place where oil, vapor, organic solvent and corrosive gas (ammonia, sulfur ◆ compound and acid) may be present in quantities. It may cause refrigerant leakage due to corrosion, electrical shock, deteriorated performance and breakage. Perform electrical work according to Installation Manual and all the relevant regulation and standards.
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Page 13: Before Installation
Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters ◆ from strong electromagnetic wave radiators such as medical equipment. Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long ◆... - Page 14 ■: Interchangeability is available with current R22 ●: Only for Refrigerant R410A (No Interchangeability with R22) ▼: Prohibited ★: Only for Refrigerant R407C (No Interchangeability with R22) Interchangeability Reason of Non-Interchangeability and Attention with R22 Measuring Instrument and Tool (○: Strictly Required) R410A R407C Pipe Cutter,...
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Page 15: Structure
2.2 Structure Model: RAS-3.0~4.0HNSKQ Part Name Part Name Part Name Part Name Chassis Filter Solenoid Valve Accumulator Vibration High Pressure Low Pressure Air Outlet Absorber Sensor Switch High Pressure Crankcase Heater 4-Way Valve Propeller Fan Switch Compressor Oil Separator Check Joint Fan Motor Electronic Liquid Stop Valve... - Page 16 Model: RAS-4.5~6.0HNSKQ Part Name Part Name Part Name Part Name Electronic Chassis Propeller Fan Silencer Expansion Valve Vibration Absorber 4-Way Valve Air Outlet Solenoid Valve Low Pressure Fan Motor Crankcase Heater Check Valve Switch High Pressure Compressor Air Inlet Filter Sensor High Pressure Liquid Stop Valve...
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Page 17: Before Test Run
Model: RAS-6.5~7.0HNSKQ Part Name Part Name Part Name Part Name Chassis Filter Electrical Box Air Outlet High Pressure Vibration Absorber Check Joint Propeller Fan Sensor High Pressure Low Pressure Crankcase Heater Fan Motor Switch Switch Compressor Filter 4-Way Valve Air Inlet Liquid Stop Valve Check Valve ... -
Page 18: Refrigerant Cycle Diagram
2.3 Refrigerant Cycle Diagram Model: RAS-3.0~6.0HNSKQ Model: RAS-6.5~7.0HNSKQ Part name Part name Part name Compressor Fan Motor Oil Capillary Tube Oil Separator Distributor Filter 4 High Pressure Switch Filter 1 Solenoid Valve High Pressure Sensor Electronic Expansion Valve Low Pressure Switch Check Valve Filter 2 Crankcase Heater 1... - Page 19 Outdoor Unit Type Capacity at Individual can be connected can be connected (kW) Operation (kW) (kW) (kW) connected(Q’ty) RAS-3.0HNSKQ 10.4 RAS-3.5HNSKQ 10.0 RAS-4.0HNSKQ 11.2 14.56 RAS-4.5HNSKQ 12.5 6.25 15.6 RAS-5.0HNSKQ 14.0 18.2...
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Page 20: Transportation
2.5 Transportation Do not place or leave any other objects (cables, Transport the product as near to the tools) inside the outdoor unit or control board and installation location before unwrapping the package. verify that nothing remains there prior to installation and test run. -
Page 21: Outdoor Unit Installation
3. Outdoor Unit Installation 3.1 Installation Location and Precautions When installing the unit into: ◆ A wall: Make sure the wall is strong enough to hold the weight of the unit. It may be necessary to construct a strong wood or metal frame to provide added support. ... - Page 22 If a suitable location cannot be found, the windbreak wall or fence should be installation to prevent a ◆ strong wind blows to air inlet or outlet of the outdoor unit. And make sure to provide sufficient space around the outdoor unit for operation and maintenance. NOTE: ...
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Page 23: Service Space
3.2 Service Space When the outdoor unit is installed, the allowed service space as follows: If there is not enough service space for air inlets and outlets, it may result in a performance drop-off and ◆ mechanical issues due to insufficient air intake. Additionally, adequate service space is required for service maintenance access. - Page 24 (2)Obstacles on the outlet side and no obstacle in the upper side Unit: mm Single Installation Multiple Installation ...
- Page 25 (3)Obstacles on the right and left sides of single installation (a)There is no obstacle in the upper side. Unit: mm (b)There are obstacles in the upper side. Unit: mm (4)Multi-row and multiple installations. Unit: mm NOTE: If L is larger than H, mount the units on a base, so that H is greater or equal to L. Be sure to seal up every surface of the base.
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Page 26: Installation Work
3.3 Installation Work (1)Secure the outdoor unit with the anchor bolts. In order to avoid the vibration from transmitting to the indoor by the base of the unit, the 5～10mm thickness of rubber gaskets (field supplied) should be placed under the feet of the outdoor unit, which could decrease the vibration into the room. - Page 27 (3)The drain holes are working during the heating and defrosting operation. Choose a place where well drainage is available, or provide a groove for draining. (4)The unit will produce condensate in heating mode. And the condensate will freeze in colder climates, which may cause the road slippery if not properly managed.
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Page 28: Refrigerant Piping Work
4. Refrigerant Piping Work The design pressure for this product is 601 psi (4.15MPa). The pressure required for refrigerant R410A is ◆ 1.4 times higher than that of the refrigerant R22. That means that the refrigerant piping for R410A must be thicker than that for R22. - Page 29 (7) Cautions for Brazing Work (A) For piping connections, complete non-oxidation brazing with a nitrogen charge. If brazing the pipes without the nitrogen substitution, a large amount of oxidized scaling will be generated in the piping. This oxidized scaling can cause clogging inside the expansion valve, solenoid valve, accumulator, and compressor, which can damage the unit.
- Page 30 (B) Flare Nut Dimension The minimum thickness of joint and flare nut dimension are selected from the table below: Minimum Thickness of Joint Flare Nut Dimension B Unit: mm Unit: mm Diameter(Φd) R410A Diameter(Φd) R410A 6.35 6.35 9.53 9.53 12.7 12.7 15.88 15.88...
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Page 31: Model Of Branch Pipe
4.2 Model of Branch Pipe (1) E-102SN The model of E-102SN branch pipe is used for the model of RAS-3.0~7.0HNSKQ outdoor unit. Unit: mm E-102SN for Model RAS-3.0~7.0HNSKQ Gas Pipe Liquid Pipe... -
Page 32: Refrigerant Piping Size
(2) Precaution for branch pipe connection Use the branch pipe to connect the outdoor/indoor units. Mounted the branch pipes to a pillar, a wall, or a ceiling. Keep the inlet pipe of the branch pipe straight, and the length of the straight pipe is no less than 0.5 meter. 4.3 Refrigerant Piping Size Example of connection: connection of 4 indoor units. - Page 33 Allowable Piping Length RAS-3.0~4.0HNSKQ ≤25 meters Between the outdoor unit and RAS-4.5~6.0HNSKQ ≤60 meters a+b+c+d the farthest indoor unit RAS-6.5~7.0HNSKQ ≤75 meters RAS-3.0HNSKQ ≤30 meters Maximum Piping RAS-3.5~4.0HNSKQ ≤40 meters a+b+c+d+L1+ Total liquid pipe length Length L2+L3 RAS-4.5~6.0HNSKQ ≤70 meters...
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Page 34: Refrigerant Piping Work For Outdoor Unit
4.4 Refrigerant Piping Work for Outdoor Unit (1) The refrigerant piping can be installed in four directions (front, right, bottom or rear side) as shown in the following figures. Model: RAS-3.0~6.0HNSKQ Rear Hole for Stop valves Refrigerant Piping (Knockout-Hole) Refrigerant Piping Right Hole for Front Hole for Refrigerant Piping... - Page 35 Attention for Removing Service Cover – Procedures of Removing Cover – 1) Remove the screws according to the figure above. NOTE: Remove the screws and hold the service cover with your hands. If not, the service cover may fall down. 2) Slowly push the service cover downward.
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Page 36: Air Tight Test
(4)Be sure to attach the piping cover to prevent rain water from going into the unit. Completely seal the penetration parts of the pipes with field-supplied insulation in order to prevent rain water from going into the unit. (5)Use a pipe bender or an elbow (field-supplied) for bending work while connecting pipes. 4.5 Air Tight Test (1)The stop valves should be closed completely (factory-setting). -
Page 37: Vacuuming
4.6 Vacuuming (1) Connect the manifold gauge and the charging hoses to the check joints of the stop valves with a vacuum pump. (2) Vacuum the refrigerant piping of the system with the vacuum pump until the pressure reaches -0.1MPa or lower. -
Page 38: Additional Refrigerant Charge Calculation
7.0HNSKQ Max. Additional Refrigerant Charge Quantity (kg) (3) Refrigerant Charge Amount of Outdoor Unit before Shipment. Outdoor Unit （kg） RAS-3.0HNSKQ RAS-3.5~4.0HNSKQ RAS-4.5~6.0HNSKQ RAS-6.5HNSKQ RAS-7.0HNSKQ NOTE: W0 is outdoor unit refrigerant charge before shipment. (4) Record of Additional Charge... -
Page 39: Additional Refrigerant Charge Work
The total refrigerant charge of the system should be calculated in the following formula. Total of Refrigerant Charge The system 4.8 Additional Refrigerant Charge Work (1) The additional refrigerant charge is required according to the calculation. (2) Before charge work, make sure that the stop valves are fully closed. (3) Charge the additional refrigerant from the check joint of liquid stop valve. -
Page 40: Electrical Wring
5. Electrical Wring Turn off the main power switch of the indoor unit and the outdoor unit, then wait for more than 10 minutes ◆ before electrical wiring work or a periodical check is performed. Ensure that the indoor fan and the outdoor fan have been stopped before electrical wiring work or a ◆... -
Page 41: Electrical Wiring Connection
5.2 Electrical Wiring Connection Connect the electrical wiring according to the following figures: Figure 5.1 Electrical Wiring Connection for RAS-3.0~7.0HNSKQ Table 5.1 Electrical Data and Recommended Characteristics Power Supply Transmission Rated Power Rated Rated Sensitive Model Wiring cable Ampacity Supply Ampacity Ampacity (Cores×mm... - Page 42 (1) Connect the power supply wirings to the terminal block TB1 and ground wiring to the terminal in the electrical control box. The ELB (Earth leakage breaker), FUSE and S (Main switch) must be installed to each power source of outdoor unit. (2) Connect the transmission cables between the outdoor unit and indoor units to the terminals 1 and 2 on the terminal block.
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Page 43: Electrical Wiring For Outdoor Unit
5.3 Electrical Wiring for Outdoor Unit Avoid the wirings touching the refrigerant pipes, plate edges and electrical parts inside the unit. If not, the wirings will be damaged and a f re may be happened. Figure 5.2 Electrical Wiring for RAS-3.0~4.0HNSKQ Figure 5.3 Electrical Wiring for RAS-4.5~6.0HNSKQ... - Page 44 Figure 5.4 Electrical Wiring for RAS-6.5~7.0HNSKQ NOTE: (1) Perform all the electrical work in accordance with the manual and in compliance with the local regulations and safety standards. The electrical wiring should be applied by the qualified person. (2) The recommended electrical characteristics are calculated by the related safety standards. The environment temperature is less than 40°C, the length of the power supply wire is no more than 15 meters.
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Page 45: Dip Switch Setting Of Outdoor Unit
6. DIP Switch Setting of Outdoor Unit There are several DIP switches in the front of the outdoor unit, which is designed for test and diagnostic conveniently. It has the advantages that it can monitor the real-time status of the outdoor unit, display the alarm codes and view the historical alarm codes and so on. - Page 46 (4) Setting Refrigerant Cycle No. In the same refrigerant cycle, set the same refrigerant cycle No. for the outdoor unit and the indoor units as shown below. The range of refrigerant cycle No. is between 0 and 63. DSW4 4 5 6...
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Page 47: Test Run
7. Test Run Test run of outdoor units and indoor units should be performed one by one sequentially. And record the results in the table 7.1. 7.1 Before Test Run (1) Do not operate the system until all the points have been examined and cleared. Check to ensure that the refrigerant piping and transmission between outdoor unit and indoor units ◆... - Page 48 Table 7.1 Test Run and Maintenance Record Model: SERIAL No.: COMPRESSOR MFG. No. CUSTOMER'S NAME AND ADDRESS: DATE: 1. Is the rotation direction of the indoor unit fan correct? 2. Is the rotation direction of the outdoor unit fans correct? 3.
- Page 49 Table 7.2 Alarm Code Alarm Malfunction Reason Code Activation of Float Switch (High Water Level in Condensation Activation of Protection Device Drainage Pan, Problem with Drain Piping, Float Switch, or （01） (Float Switch) Condensation Drainage Pan) Activation of Protection Device Activation of PSH (Pipe Clogging, Excessive Refrigerant, (High Pressure Cut) Inert Gas Mixing)
- Page 50 Abnormality of Picking up Circuit for Failure of Protection Detecting Device Protection in Outdoor Unit (Incorrect Wiring of Outdoor PCB) Combination Problem between Inverter Incorrect Combination between Inverter PCB and Outdoor PCB and Outdoor PCB PCB Activation of Pressure Ratio Decrease Defective Compression (Failure of Compressor of Inverter, Protection Device Loose Power Supply Connection)
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Page 51: Safety And Control Device Setting
8. Safety and Control Device Setting The compressor is protected by the following devices and their combinations. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Crankcase Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is stopped. - Page 52 1111317 Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd. No. 218, Qianwangang Road, Economic and Technological Development Zone, Qingdao, China V0 8 P01604Q 2021.12...