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Summary of Contents for Airwell YAV112
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Page 1: Outdoor Unit
“MV ” Series DC-inverter air-conditioners Outdoor unit ●YAV112 ●YAV140 ●YAV160 Before installing your air-conditioner, please read this installation instruction ENGLISH carefully and keep it for future reference. -
Page 2: Table Of Contents
CONtENt 1 Check of Density Limit ..........................1 2 Space requirement ............................2 3 Precaution ..............................3 4 Installation tools required..........................4 4.1 New Refrigerant Air Conditioner Installation ..................4 4.2 Changes in the product and components ....................4 5 Introduction ..............................5 5.1 Combination ............................5 5.2 Standard attached fittings ........................5 5.3 Optional accessories ..........................5 6 Selection location ............................6 7 TRANSFER AND FIXUP OUTDOOR UNIT ....................7... -
Page 3: Check Of Density Limit
1 CheCk Of DeNSITy LIMIT The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its density will not exceed a set limit. The refrigerant (R410A), which is used in the air condi- tioner, is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws imposed to pro- tect the ozone layer. -
Page 4: Space Requirement
2 SpACe reqUIreMeNT Chart 1 Chart 2 Chart 3 Chart 4 Chart 5 Chart 6 Chart 7 Chart 8 Chart 9 Chart 10 Chart 11 Chart 12... -
Page 5: Precaution
3 preCAUTION CAUTION If the warning is not observed, it may cause injure or damage to the equipment. WARNING If the warning is not observed, it may cause serious casualties. CAUTION ● Install drain piping according to this installation manual to ensure favoring drainage, and insulate the pipe to prevent condensation. -
Page 6: Installation Tools Required
4 INSTALLATION TOOLS reqUIreD 4.1 New refrigerant Air Conditioner Installation ● This air conditioner adopts the new HFC refrigerant (R410A) which doesn't destroy ozone layer. R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A refrigerant is approx. -
Page 7: Introduction
5 INTrODUCTION 5.1 Combination The Indoor units can be installed in the following range, To learn which models of indoor units are compatible with MVi unit, refer to the product catalogs. Total capacity/quantity of indoor units table: Combination table: Total quantity of indoor Outdoor unit Capacity match ratio unis (max) -
Page 8: Selection Location
6 SeLeCTION LOCATION CAUTION The installation of the air conditioning unit must be positioned in a location that can sufficiently support its weight and give protection against adverse environmental conditions. Failure to do so may result in unit damage and possible human injury. WARNING Ensure that the unit is placed where there is no risk of flammable gases. -
Page 9: Transfer And Fixup Outdoor Unit
7 TrANSfer AND fIXUp OUTDOOr UNIT CAUTION ● Please carry the unit to installation place with its initial packaging as best as possible. ● Be careful when hang the unit with sling (for example), because the center of gravity is not the epicenter of this unit, and some methods should be taken for its overturn. -
Page 10: Fixup Outdoor Unit
7 TrANSfer AND fIXUp OUTDOOr UNIT 7.4 fixup outdoor unit ● Before installation, check strength and horizon of the base for preventing abnormal vibration and noise. ● According to the following diagram, fix the base firmly with the anchor bolts. (Anchor bolt, nut: M10,4pairs) ●... -
Page 11: Refrigerant Piping
8 refrIGerANT pIpING 8.1 Installation synopsis Field pipes can be installed in three directions, this character increases the flexible of installation. Chart 17 1 Connecting liquid pipe (field supply) the front 2 Connecting gas pipe the rear 3 Front plate the side ●... -
Page 12: Piping Procedure
8 refrIGerANT pIpING WARNING ● It is forbidden to discharge refrigerant into the atmosphere. Collect the refrigerant in accordance with the Freon collection and destruction law. ● If the refrigerant gas leaks during installation work, ventilate the room immediately. ● Do not use flux when brazing the refrigerant piping. For brazing, use phosphor copper brazing filler metal (BCuP) which does not require a flux. -
Page 13: How To Braze
8 refrIGerANT pIpING 8.2 how to braze? CAUTION ● Do not allow anything other than the designated refrigerant to get mixed into the freezing cycle, such as air, etc. If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away. ●... -
Page 14: How To Connect Flare
● See the following table for flare part machining dimensions. ● When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. (Use only original oil from Airwell) Piping union... -
Page 15: How To Handle Stop Valve
8 refrIGerANT pIpING 8.4 how to handle stop valve? ● The stop valves for indoor-outdoor connecting piping are closed at shipment from the factory. Make sure to keep the 1 Service port valve open during operation. The names of parts of the stop 2 Shut-off valve valve are shown as following: 3 Field piping... -
Page 16: Pipe Selection And How To Calculate
Unit distribution tube Caution:Do not use commercially available distribution joint for the liquid tubing. Be sure to use special R410A disribution joints which supplied by Airwell only.(Part No. 463750190) Chart 26 ■ Ranges that apply to refrigerant tubing lengths and differences in installation heights. - Page 17 8 refrIGerANT pIpING ■ Main tubing size (LA) Below 14(5hp) Capacity(kW) Over Capacity(kW) Main tubing <32 ≥32 ≥66 size(LA) ODU model 11.2 11.2 11.2 Φ15.88 Φ15.88 Φ19.05 Φ19.05 Φ19.05 Φ22.23 Φ19.05 Φ19.05 Φ22.23 tubing(mm) Liquid Φ9.52 Φ9.52 Φ12.70 Tubing(mm) Table 9 (1) Below 20.2(7.2hp) Capacity(kW)
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Page 18: Pipe Selection And How To Calculate
8 refrIGerANT pIpING 8.6 pipe selection and how to calculate ■ Main tubing size after distribution (LB,LC…) LB,LC... Below KW 6(2.2hp) 20.2(7.2hp) Totalcapacityafterdistribution Over KW 6(2.2hp) Gas tubing(mm/inch) Φ12. 7(1/2") Φ15. 88(5/8") Tubing size Liquid tubing(mm/inch) Φ9.52(3/8") Table 10 ■ Indoor unit tubing connection (l1, l2…ln-1) Indoor unit type 22,28,36,45,56 63,71,90,110... -
Page 19: Additional Refrigerant Charge Calculation
8 refrIGerANT pIpING Chose outdoor unit model as YAV140 (14KW）is the most economical. (3)Pipe calculation and selection： Sum of nominal capacity after Pipe select result Pipe number Actual length（m） According as every branch (KW） Gas pipe/liquid pipe (mm） 18.1 Φ19.05/Φ12.70 Table 9 13.6 Φ15.88/Φ9.52... -
Page 20: Leakage Test
8 refrIGerANT pIpING 8.8 Leakage test After the refrigerant piping has finished, execute a leakage test. (1) Connect a nitrogen gas bomb as shown in the figure blow, and apply pressure. (2) Please comply following steps to apply pressure: STEP 1: Apply pressure 0.3Mpa (3.0kg/cm2G) for 3 minutes or more. STEP 2: Apply pressure 1.5Mpa (15 kg/cm2G) for 3 minutes or more. -
Page 21: Vacuum Process
8 refrIGerANT pIpING 8.9 Vacuum process WARNING ● For protection of the earths environment, do not discharge the refrigerant gas in the air. ● Using a vacuum pump, eliminate the remaining air (nitrogen gas, etc.) in the unit. If gas remains, performance and reliability of the unit may be reduced. -
Page 22: Addition Refrigerant Charge
8 refrIGerANT pIpING 8.10 Addition refrigerant charge 1.After vacuuming work, exchange the vacuum pump with the refrigerant bomb and then start the additional charging work of refrigerant. 2.Calculating the amount of additional refrigerant required. 3.When the system is charged with refrigerant at the factory, the amount of refrigerant needed for the pipes on site is not included. -
Page 23: Field Wiring
9 fIeLD wIrING Chart 29 9.1 requirement of the wiring For VRF system, all indoor units must be supplied with one power supply (220V/50Hz 1 phase, please refer to 9.2.2). IDU power supply can either use the same power supply from outdoor unit(preferred) or use a separate power supply. -
Page 24: Power Supply Wiring
9 fIeLD wIrING 9.2 power supply wiring 9.2.1 Power supply for outdoor unit ● Unscrew and remove the service lid, please refer to chart 30. ● press the power supply wiring under the wire clip. ● Connect the power supply wiring to the power supply terminal block. Big hole is for power wire. -
Page 25: Main Communication Wiring
9 fIeLD wIrING CAUTION Never shut off the sub power breaker of any indoor unit unless in emergency conditions, otherwise the whole VRF system cannot run normally. 9.3 Main communication wiring Main communication wiring is connect the wire to the terminal block F1/F2 , it connect between outdoor unit and indoor unit or between the indoor units. -
Page 26: R/C Communication Wiring
9 fIeLD wIrING 9.4 R/C communication wiring R/C communication wiring is connect the wire to the terminal block R1/R2 , it connect between the indoor units and must according to following rules: 1.Up to 16 indoor units can be connected in one R/C communication wiring; 2.All of indoor units must be in L link type;... -
Page 27: Dry Contact Function Introduction
9 fIeLD wIrING 9.5 Dry contact function introduction Chart 37 9.5.1 Dry contact with low voltage output definition ● NSC: Night mode; when these two pins (Dn and Dc) are connected, the unit will enter night mode, it is main for decrease the noise level (Optional). ●... -
Page 28: Installation Setting Through Hmi
10 INSTALLATION SeTTING ThrOUGh hMI Outdoor controller board has a HMI (Human Machine Interface) which you can set the status of the outdoor unit. There are two important settings for installation —— address setting procedure and outdoor control mode setting. 10.1. -
Page 29: Outdoor Control Mode Setting
10 INSTALLATION SeTTING ThrOUGh hMI 10.2 Outdoor Control Mode Setting: 1.There are four kinds of control mode —— Mode by First win IDU, Mode (Forced Cooling/ Heating) by ODU Dry contact, Mode by OAT and Mode by Master IDU. 1. The default outdoor control mode is mode by first win IDU. To set different outdoor control mode, ODU should be at Stand By state and HMI’s display is “noFbo”. -
Page 30: Dip Switch Introduction
10 INSTALLATION SeTTING ThrOUGh hMI 10.3 Dip switch introduction 1. There are twelve dip switches on main controller board. Refer to following picture: From left to right: DS1, DS2 … DS11, DS12 Chart 47 2. The first four dip switches define outdoor nominal capacity. 3. -
Page 31: Appendix
11 AppeNDIX 11.1 Letter VS hMI display Letter Display Letter Display Number Display... -
Page 32: Hmi Display Content Explanation
11 AppeNDIX 11.2 hMI display content explanation Display Content Full Description Initial process Initial state Initial state with fault occurs, “ ” is fault code. Normal off with fault occurs. Force shut off with fault occurs. Force shut off without any fault. Diagnostic Installation test. -
Page 33: Protection Code
11 AppeNDIX 11.3 protection Code Malfunction code Malfunction name Mode conflict Water overflow No feedback from IFAN Motor IDU EEPROM Fault 2 IDU No Main BUS communication fault IDU SPI Communication fault IDU local bus power manage circuit fault IDU local bus power management fault IDU No physical address IDU No user address IDU No ODU physical address... - Page 34 11 AppeNDIX 11.3 protection Code Malfunction code Malfunction name Low pressure protection for sensor Low pressure protection for switch OFAN Fault CDt sensor is disconnected CDt sensor is shorted High pressure sensor Fault Low pressure sensor Fault ODU No main BUS com. fault ODU SPI Communication fault ODU No PA/UA matching table ODU power management circuit fault...
- Page 35 11 AppeNDIX 11.3 protection Code Malfunction code Malfunction name OCMt sensor is shorted OCOt sensor is disconnected OCOt sensor is shorted CSt sensor is disconnected CSt sensor is shorted ODU EEPROM Fault 1 Deicing Oil returning cycle ODU Bad HBS com. fault For future Physical address collision fault The total IDU normal capacity is out of range...
- Page 36 Part No:468050155/02 IM.YAV1_A.1GB www.airwell.com...
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