background image

Front Side Piping Cover

(4) Pipes can be connected from 4 directions

Tightening Torque for Flare Nut

Pipe Size

Right Side Piping Work

5.4   Piping Connection

Pipes can be connected from 4 directions.

Rear Side 
Piping Cover

(Knock-Out Hole)

Rear Side Piping Work
(Knock-Out Hole)

(Knock-Out Hole)

Right Side Piping Work

Bottom Side
Piping Work

(Knock-Out Hole)

Front Side 
Piping Work
(Knock-Out Hole)

Front Side Piping Cover

Fig. 5.1  Piping Direction

Front Side Piping Cover

Stop Valve

Distribut Pipe

Remove Direction of 

Service Cover

Note Item for Remove Service Cover

Main Points for Remove 
Service Cover

Service Cover

Remove the bolts of 
service cover follow

Note

Press the service cover

right Fig.

when remove the bolts.

It is possible for service

cover to slide down.

Fix Hook (3 Points)

Fig. 5.2  Remove Service Cover 

(1) Confirm that the valve is closed.

(2) Prepare a field-supplied bend pipe for

liquid line.  Connect it to the liquid valve by

flare nut through the square hole of bottom

base.

(3) For Gas Piping Connection

Prepare a field-supplied bend pipe for gas

line.  Braze it and the factory-supplied pipe

flange at the outside of the unit.

Do not apply the double 
spanner work here.
Refrigerant leakage shall
occur.

Double Spanner Work

Tightening Work for Stop Valve

Table 5.6 

Torque

as shown Fig. 5.1.  Make a knock-out hole

in the front pipe cover or bottom base to

pass through the hole.

After removing the pipe cover from the unit,

punch out the holes following the guide line

with screwdriver and a hammer.

Then, cut the edge of the holes and attach

insulation (Field-Supplied) for cables and

pipes protection.

Gap

Connect Front and Right Side Pipe 

B

A

Front Side Piping Hole 

Right Side Piping Hole

Press the service cover at front,

then remove it down slowly.

12

Summary of Contents for AVW-38UCSC

Page 1: ...Installation Maintenance Manual INVERTER DRIVEN MULTI SPLIT HEAT PUMP AIR CONDITIONER 20 19 1 A B A AVW 38UCSC ABCDEFFGAHIJDKA Model AVW 48UCSC AVW 54UCSC 1033068 P00415Q ORIGINAL INSTRUCTIONS...

Page 2: ......

Page 3: ...ided that these are used in accordance with our instructions EN 60335 1 EN 60335 2 40 EN 62233 EN 55014 1 EN 61000 3 2 EN 61000 3 3 EN 55014 2 following the provisions of 2006 42 EC 2014 30 EU 2012 19...

Page 4: ......

Page 5: ...WB 46 DB 30 DB 15 5 WB 15WB 5 DB 15 DB 20 WB HISENSE HISENSE Correct Disposal of this product This marking indicates that this product should not be disposed with other household wastes To prevent pos...

Page 6: ...f it is not used Do not install the outdoor unit where there is a high level of oil mist flammable gases salty air or harmful gases such as sulphur Do not use any sprays such as insecticide lacquer ha...

Page 7: ...cy and accessories to determine if they are correct CHECKING PRODUCT RECEIVED Upon receiving this product inspect it for any shipping damage Claims for damage either apparent or concealed should be fi...

Page 8: ...ck 6 Electrical Wiring 19 5 9 Collecting Refrigerant 18 5 8 Fill the charge Refrigerant Register List 17 5 7 Caution of the Pressure by Check Joint 15 14 5 5 Air Tight Test 13 5 4 Piping Connection 12...

Page 9: ...Air Inlet Vibration Absorbing Rubber Electrical Box Crankcase Heater Pressure Sensor High Pressure Switch Bypass Solenoid Valve Stop Valve for Gas Line Stop Valve for Liquid Line Gas Liquid Separator...

Page 10: ...Strainer Electrical Expansion Valve Stop Valve for Gas Line Stop Valve for Liquid Line Bypass High Pressure Protect High Pressure Low Pressure Remark Gas Liquid Separator Compressor Heat Exchanger Ch...

Page 11: ...trogen during brazing Prevention from Oxidation during Brazing Lubrication Oil for Flare Surface Use a synthetic oil which is equivalent to the oil used in the refrigeration cycle Applying Oil to the...

Page 12: ...ng wires onto the outdoor unit when lifting it by crane Hanging Method When hanging the unit ensure a balance of the unit check safety and lift up smoothly 1 Do not remove any packing materials 2 Hang...

Page 13: ...the field supplied hoods at the discharge side of the outdoor unit and the inlet side of the heat exchanger Install the outdoor unit where it is in the shade or it will not be exposed to direct sunsh...

Page 14: ...Unit Nut Special Washer Filled Mortar Concrete Fig 4 3 Position of Anchor Bolts NOTE When the mark dimension is secured piping work from bottom side is easy without interference of foundation Unit An...

Page 15: ...le Do not charge oxygen acetylene or other flammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air tight test These types of gases are extremely dangerous and...

Page 16: ...erial is based on a JIS standard JIS B8607 Flare Nut Dimension Use the flare nut as below Flare Nut Dimension B mm Diameter R410A Dimension is based on a JIS standard JIS B8607 Flare Nut Cap the end o...

Page 17: ...lthough refrigerant has been charged into this unit 1 Ensure that the directions for refrigerant piping work according 2 Additional Refrigerant Charge R410A to the tables Table 5 2 Indoor Unit Pipe Mo...

Page 18: ...an Indoor Unit Indoor is Higher than Outdoor Unit Indoor and Branch Pipe Max High Distance betwen Indoor and Indoor or Max Pipe Length between Branch Pipe and Indoor Choose Branch From a Branch Pipe t...

Page 19: ...Outer Diameter Branch Pipe for Line Branch 5 3 Table Shape Branch Pipe Unit Inner Diameter T 11 Branch Pipe...

Page 20: ...nts Fig 5 2 Remove Service Cover 1 Confirm that the valve is closed 2 Prepare a field supplied bend pipe for liquid line Connect it to the liquid valve by flare nut through the square hole of bottom b...

Page 21: ...refrigerant piping from touching the weak part of the building such as wall ceiling etc If touched abnormal sound may occur due to the vibration of the piping Pay special attention in case of short pi...

Page 22: ...ly charging hose can be connected Spindle Valve Counterclockwise Open Clockwise Close O Ring Refrigerant Piping Rubber Cap Tighten the cap with a torque Do not apply an abnormal big force to 5 0N m or...

Page 23: ...and the dewing on the pipe surface by the low pressure Check to ensure that there is no gas leakage When large amount of the refrigerant leaks the troubles as follows may occur 1 Oxygen Deficiency 2...

Page 24: ...ng table because of high pressure side and low pressure side changes by operation mode Cooling Operation Heating Operation Check Joint for Gas Stop Valve A Low Pressure High Pressure Check Joint for P...

Page 25: ...ge refrigerant R410A into the system as follows 1 For charging refrigerant connect the gauge mani fold using charging hoses with a refrigerant cylinder to the check joint of the liquid line stop valve...

Page 26: ...ply is within 10 of nominal voltage and earth phase is contained in the power supply wires If not electrical parts will be damaged 3 Check to ensure that the capacity of power supply is enough If not...

Page 27: ...terminal board TB1 printed circuit board will be damaged Remote Control Switch Option 3 Do not wire in front of the fixing screw of the service panel If do the screw can not be removed NOTES 2 Total w...

Page 28: ...tube for feild wiring not used fix rubber bushes with adhesive on the panel 1 Power Source Wiring Install main switch and ELB for each system Separate the control wiring between outdoor unit and indo...

Page 29: ...clamp and clamp them as shown in the figure 2 Perform wiring so that wires do not touch the compressor refrigerant pipes or edge of the covers Fuse mm Size Wire Earth EN60335 1 1 EN60335 1 1 Transmit...

Page 30: ...e setting Dip Switch ALL OFF Shipment Set Test Run Heat symbol denote the position of Dip Switch contact joint ALL OFF Shipment Set Optional Function Setting Input Power Setting Ref Cycle No Setting C...

Page 31: ...o not operate the system until all the check points have been cleared resistance is more than 1 megohm by measuring the resistance between ground and the terminal of the electrical parts If not do not...

Page 32: ...le 3 Connecting Order of each Terminal Boards 4 Screw Fastening of each Terminal Boards The power source of outdoor unit is not turned ON The operating line wiring between indoor unit and outdoor unit...

Page 33: ...o C 7 Check Refrigerant Temperature Liquid Temperature o C Discharge Gas Temperature o C 8 Check Pressure Discharge Pressure MPa Suction Pressure MPa 9 Check Voltage Rated Voltage V Operating Voltage...

Page 34: ...of Protective Circuit in outdoor Unit Failure of Protection detecting Circuit 41 Overload cooling Possibility of high pressure device activation O U Pipe Thermistor Temp is Higher than 55o C and the...

Page 35: ...CCP Timer Set Time Compressor Crank Outdoor Unit Model KBtu h 3 4 15 3 2 0 05 M Pa M Pa A 50 W Min A 5 Automatic Reset Non Adjustable For Compressor Pressure Switch High Pressure Cut Out Cut In Fuse...

Page 36: ...5 Degradation co efficient heating Cdh 0 25 off mode POFF 0 049 kW cooling QCE 636 kWh a standby mode PSB 0 049 kW heating Average QHE 3465 kWh a thermostat off mode cooling heating PTO 0 05 0 99 kW h...

Page 37: ...r measured 6300 m3 h Sound power level indoor outdoor measured LWA 70 dB A Global warming potential GWP 2088 kgCO2 eq Qingdao Hisense Hitachi Air conditioning Systems Co Ltd 218 Qianwangang Road Econo...

Page 38: ...r measured 6800 m3 h Sound power level indoor outdoor measured LWA 72 dB A Global warming potential GWP 2088 kgCO2 eq Qingdao Hisense Hitachi Air conditioning Systems Co Ltd 218 Qianwangang Road Econo...

Page 39: ...to the atmosphere the impact on global warming would be 2088 times higher than 1 kg of CO2 over a period of 100 years Never try to interfere with the refrigerant circuit yourself or disassemble the p...

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Page 42: ...18 03 V10 1033068 Qingdao Hisense Hitachi Air conditioning Systems Co Ltd Add 218 Qianwangang Road Economic Technical Development Zone Qingdao P R China http www hisense vrf com E mail export hisenseh...

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