INSTALLATION MANUAL

Contents

1.Safety precautionary measure.
2.Key points in installation inspection..
3.Installation of outdoor unit. 2
4.Design of refrigerant pipes. T
5.Electrical wiring. 11
6. Trial running. 17

1.Safetyprecautionarymeasure

WARNING

1.This air conditioner is a comforting unit which cannot be used in any special place forstoringmachines,precise instruments,food,plants, poultries or artworks,etc.
2.The installation work must be done by the distributor or a professional worker.
3.The installation workermust be equipped with all related knowledgeas awrongoperationmaycause firerisk,electricshock,injuryorwater leakage,etc.
4.If the unit is to be installed ina small room,suitable measures shall.be takentomakesureanyrefrigerant leakageconcentrationif happened in theroomwill not exceed the critical level.
5.Fordetailed measures,place consultwith the distributor.
6.Connection of power supply must be complying with rules specified by the local electrical authority.
7.If theairconditioner is to bemoved orreinstalled,please let the distributor ora professional worker operate.
Incorrect installationwill cause fire risk,electric shock,injuryorwater leakage,etc.
8.The user is not permitted to rebuild orrepair the unit of own
accord.Incorrectrepairingwillcause firerisk,electricshock,injuryor waterleakage,etc,so repairingmustbe performedbythedistributorora professionalworker.
9.The A-weighted sound pressure level is below 70dB.
10.Thisappliance is intendedto beusedbyexpert ortrained users in shops,inlight industryand on farms,or forcommercialuseby lay
persons.
11.The appliance shall be disconnected from its power source during serviceandwhenreplacingpartsand,if that theremoval of theplugis foreseen,itshallbeclearlyindicatedthattheremovaloftheplughasto besuch thatanoperatorcancheck fromanyof thepointstowhichhe has access that the plug remains removed.
12.The appliance shall be maintained by the professional every three years.

NOTICE

1.Make sure the water drainage ditch is useable.
2.Make sure a current leakage protection switch is equipped.
3.The current leakage protection switch must be equipped or there may beanelectricshock.
4.It mustn't be installed inany position with potential leakage of
inflammablegas.
5.Ifany inflammable gas leaks,theremaybea fire riskaround the indoorunit.
6.Make sure the foundation installation or suspending installation is firm andreliable.
7.If the foundation or suspension is not firm and reliable enough,there maybeafallaccident.
8.Make sure all electric cables are correctly connected.
9.If any electric cable is incorrectly connected,any electrical part may be damaged.
10.If the refrigerant leaks during installation,the room must be ventilated at once.
11.The leaked refrigerant may generate some toxic gas if it contacts any flame.
12.After installation,make sure there is no refrigerant leakage.
13.If the refrigerant gas entersand contacts some flame source such as a heater,a stove oranelectric cooker,it may generate some toxic gas.

14.Alightning protectiondevicemustbeequippedasper theapplicable nationalregulation,orthemachinemaybedamagedbya lightningstrike.

NOTICE

1.The products are not to be connected to public low voltage a.c
distributionsystems.
2.The appliance shall be installed in accordance with national wiring regulations.
3.Stationary appliances not fitted with means for disconnection from the supplymains havingacontactseparationinallpoles thatprovide full disconnectionunderovervoltagecategory Ill,theinstructionsstate that means fordisconnectionmustbe incorporatedinthe fixedwiring in accordancewiththewiringrules.
4.If the supply cord is damaged,it must be replaced by the
manufacturer,itsserviceagentorsimilarly qualified personsinorderto avoida hazard.
5.Thisappliancecanbeusedbychildrenaged from8yearsandabove andpersonswithreducedphysical,sensoryormental capabilitiesor lack ofexperienceandknowledge if they havebeengivensupervisionor instructionconcerninguseof theappliance inasafewayand understand the hazards involved.
6. Children shall not play with the appliance.
7.Cleaning and user maintenance shall not be made by children without supervision.
8.GWP:R410A:2087.5.
9.Disconnect the power supply before cleaning and maintenance.

2.Keypoints in installation inspection

2-1Receivalandunpacking inspection

1) When themachine is received,check if there isanydamage in transportation.Ifanysurfaceor internal damageisfound,please inform the transportationagency ina written form. 2)After themachine isreceived,check if thedevice type,specification and quantity are complying with the contract. 3)When unpacking the product, please well keep the instruction manual andcheckallaccessories.

2-2 Refrigerant tube

1).Therefrigerant tube installationmustbeperformedbythespecial refrigerantdispenser (separatelyordered) for themanufacturercentralair conditioner.

2)The refrigerant tubemustbeof the specified tubediameterand tube wall thickness.
3) Copper tube welding must be performed with nitrogen filled
protection,and thetubemustbe filledwith nitrogen gasof O.02MPawhich cannotbe cut off until welding iscompletedand the copper tube is
thoroughlycooleddown.
4) The refrigerant tube must be treated with thermal insulation.
5)Aftertherefrigeranttube is installedand beforegas tightness testand vacuumization,theindoorunitcannotbeelectrified.

2-3Gas tightness test

After therefrigerant tube is installed,nitrogengas of 40kgf/cm²(4.0MPa) mustbe filledfrom the gassideand liquid sideatthesame time for24- hourgastightnesstest.

2-4 Vacuumizations

Aftertheairtightnesstest,vacuumization(vacuumdegree-O.1MPa) must be performed fromboth the gassideand the liquid sideatthesame time.

2-5Refrigerant refilling

1)Thevolumeof refrigeranttoberefilled iscalculatedonthediameter and length (actual length) of the tubesat theoutdoorunitand indoorunit liquidside.

2)The volume of refrigerant tobe refilled,liquid tubediameter,tube lengthandheightdifferencebetweentheoutdoorunitand indoorunit shallberecordedon the confirmation table (on thecoverof theelectrical box) for futurereference.

2-6 Electrical wiring

1) Theselection of powersupply capacityand wire diametershall be complyingwiththedesignmanual.Thediameterofpowersupplycable foranairconditioner isusually larger thanthediameterofmotorcable.

2)Topreventanydisoperationoftheairconditioner,thepowersupply cable(380-415V3N\~) cannotbe twistedwithanyconnectingcable of outdoor unit and indoor unit (low voltage cable).

3)The indoorunit can be electrified after gas tightness test and vacuumization.

4)The location of outdoorunit must be set,as shown in Chapter 5.4,and the SW6dialingcodemustbesetwithin 0 { ~ } 3 ,inwhich,O#is the dominating unit and othersare dominated units.

2-7 Trial running

1) The two pieces of pearl cotton protecting the condenser at the back of theunit shallberemovedbefore trialrunning.Theymustbe takenout carefully soasnot todamage the fins or theperformance of thermal exchange will be influenced.

2)Trial running cannotbe started unless the outdoor unit is electrified and preheated formore than12h,or thesystemmaybedamaged.

3.Installation of outdoorunit

3-1Combinationmodeofoutdoorunits

Remark: 1.For combination 1,outdoor unit joint refer to 3 units combination. 2.For combination 2,outdoor unit joint refer to 4 units combination.

WARNING

1.The air conditioner must be installed in a place of enough strength to support themachine weight.
2.If it lacks of strength,the machine may fall down and cause some personal injury.
3.The installation must be performed specially to prevent strong wind or earthquake.
4.Incorrect installation may cause some accident because of machine

falling down.

3-2 Selection of installation position

1) Enoughspace for installationandmaintenance; 2) No barrier at the inlet and outlet air ports and away from strong wind; 3) Dry and ventilating; 4)The flat supportingplatform has enough capacityto carrying the outdoorunit weight which can be horizontally installed without increasing anynoise orvibration; 5) Neighbors not influenced by operating noise and exhaust gas; 6) No leakage of inflammable gas; 7) Convenient for tube connection and electrical connection. 8)Avoid installing inplaceswith high salinityorcorrosive gas,etc.If unavoidable,chooseanti-corrosionmodel.

3-3 Drawing of outdoor unit dimensions (unit: mm)

Fig.3.1 Shape1(8HP\~18HP)

Fig.3.2 Shape2(20HP\~24HP)

Fig.3.3 Shape3(26HP\~28HP)

Fig.3.4 Shape4(30HP\~42HP)

3-4 Hoisting of outdoor unit

1) No packingmaterial can be removed during hoisting,hoistingshall be made by two ropes of 8mabovebound on the package,and themachine mustbebalancedand hoistedsafelyandreliably. If thereisnopackage orthepackingmaterial is broken,some backing board orpackingmaterial shall be used for protection.

2)The outdoor material shall be handled and hoisted vertically within 1 5 ^ { \circ } ,and safety is the most important during handling and hoisting.

3-5Foundationforoutdoorunit

1) Provide a firm and adequate foundation to: 1.Protect the outdoor machine from sinking; 2.Prevent any abnormal noise cause by the foundation. 2) Foundation type 1. Steel structure 2.Concrete structure (shown as the figure below) 3)Key points in foundation construction: 1.The mastermachine shall be installed on a firm cement ground or concrete foundation.The concrete foundation is constructed as per Fig 3.3,or be constructed with field measuring. 2.The foundation must be fully leveled to ensure all points are uniformlycontacted. 3.The foundation shall be constructed to ensure it directly supports the vertical edges of the front and back base plates which are the actual weight bearing positions of the machine. 4.When the foundation is set on the roof,no crushed stone bed is required,but the concrete surface must be roughened.The standard concrete mixture ratio is:cement \dag { 1 } / \dag sand 2/ gravel 4,and reinforced by steel bar of \Phi 1 0 . .The cement mortar surface must be leveled and the foundationedgeshall bechamfered. 5.The foundation shall be set with drainage ditches around to avoid wateraccumulation. 6.Make sure the roof has enough bearing capacity. 7.For tube connection at the unit bottom,the foundation shall be at least 2 0 0 \mathsf {mm } below the unit.

Fig.3.5Foundation

3-6Drawing of positions for installation ofanchorbolts

Fig.3.6 bolts location

Fig.3.7 Connecting tubes

3-8Keypoints forinstallation ofoutdoorunit

1)Vibration isolators or vibration isolatingpadsshall be installed between theunitandfoundationasperthedesignspecification.

2)The outdoorunit must be tightly contacted with the foundation to avoidexcessive vibrationand noise.
3)An earth line must be connected as per legal rules.
4) Before debugging, the valves on the gas and liquid tubes of the outdoorunitcannotbeopened.
5) The installation position must be with enough space or maintenance.

3-9 Arrangement sequence outdoor units and setting of master and slaveunits

When a system is equipped with more than two outdoor units, the following mode is recommended for setting:outdoor unitsare arranged bysizes,and the largest one is set at the 1stmanifold; the outdoor unit with the largest power is set as the master unit,and others are slaves. Forexample there isa system of 80HP(a combinationof 32HP,26HP and 22HP):

1) The unit of 32HP is set at the 1st manifold (see Fig.3.9). 2)The arranging sequence is 32HP,26HP and then 22HP. 3)The unit of 32HP is set as the master unit,and units 26HP and 22HP are the slave.

Fig.3.9 Sequence of outdoor unit

3-10 Installation space of outdoorunit

1) When installation,a maintenance space as shown in Fig.3.10 shall be left,the powersupplydeviceshallbe installedat the side of the outdoor unitasperthemethodshowninthe installationmanual for thepower supply unit.

2) Make sure there is necessary space for installation and maintenance, and modulesina system must bearrangedat the same height.

3) When outdoor units are higher than surrounding barriers and they will bearranged ina row,please see Fig.3.11. 4)When outdoor units are higher than surrounding barriers and they will bearranged in2 rows,please see Fig.3.12. 5)When outdoor units are higher than surrounding barriers and they will bearranged inmore than2 rows,please see Fig.3.13. 6)When outdoor units are lower than surrounding barriers,please see Fig.3.14; the arrangement is similar with the situation when outdoor units are higher than surrounding barriers,but to prevent the thermal exchange effectis influenced byoutdoor hotair,awind scoopershallbe equipped to radiating cover of the outdoor unit,as shown in Fig.3.14.The height of wind scooper is H-h,and the scooper shall be made by the user in the field.

7) When there is any barrier above the outdoor unit, please see Fig.
3.15.

Fig.3.10 Installation space of outdoorunit

Fig.3.111row

Fig.3.122 rows

Fig.3.13More than2rows

Fig.3.14 Lower than surrounding barriers

NOTICE

1.If there is material stacked around the outdoor unit, the stack height (H-h) must be 8 0 0 \mathsf {mm } below the top of the outdoor unit.If the height is lower than the specified size,a mechanical ventilating device must be attached.

3-11 Snow-drift control device

Asnow-drift control device must be installed in snowingarea (see the figureat right,assome failuremaybe happen if there isno completed snow control system).To avoid snow accumulation,a high support must be set for installing snow sheds at the air inlet and air outlet. See Fig.3.16.

Fig.3.16 Snow-drift control device

3-12 Installation of outdoor unit wind scooper

The wind scooper is provided in field installation,and when installing, the screen shield shall be removed,and then the wind scooper can be installedas per the following two plans.

Fig.3.15 Barrierabove outdoor unit

2)20HP\~24HP

Fig.3.19 Plan 1

4)30HP\~42HP

Fig.3.29Valves

NOTICE

1.The screen shield must be removed before installing the wind scooper, ortheairoutputwillbeinfluenced.

2.If the shutter is installed,the air output will be influenced,and the refrigeratingorheatingcapacityandefficiencywillbedegraded;a larger shutterangle will causea larger influence,so it is not recommended to usea shutter,and if must, the shutter angle must be controlled within 1 5 ^ { \circ } 美 3.The air duct can only have one bend (shown as the figure above),or themachineoperationwillbedegraded.

3-13Valves

High-pressure stop valve Connected to the liquid side piping Service needle valve pressuredetection refrigerantrefilling Low-pressure stop valve Connected to the gas side piping

NOTICE

1.Incase of a single module,it is unnecessary to connect the oil balance pipe.

4.Designofrefrigeranttube

4-1Refrigerant tube length and height difference

NOTICE

1.Allmanifolds mustbethespecialmanifoldsprovidedbythemanufacturer,orsomeseriousfaluremayoccurtothesystem!
2. Indoor units shallbe uniformly installed at both sides of the "U"shape manifold.

Fig.4.1Refrigerant tube lengthand height difference

1.Whentheoutdoorunitparalelconnectionordinationofoutdoorunitsaccordingthecapacity;Itisnecessarytoeetthe externalunitcapacityof thenearendofthe mainpipe is greaterthanorequaltotheremoteoutdoorunit,W1≥W2≥W3.
2.WhentheoutdoorunitistopandHis higherthan5Om,thediametersofmain tubesbetweenoutdoorunitsand1stmanifold, according tab of Diameters of main tubes for outdoor units,the equivalent length of all tubes >= 9 0 \mathsf { m } ：
3.Whentheoutdoorunitisbelowand Hishigherthan40m,thediametersofmain tubesbetweenoutdoorunitsand1stmanifold, according tabof Diameters of main tubes foroutdoor units,the equivalent length of all tubes >= 9 0 \mathsf { m }
4.Equivalent piping length \mathbf { \sigma } = \mathbf { \sigma } actual piping length + \Sigma (number of manifold x equivalent length of manifold),The converted length of the minifold is 0 . 5 m of the equivalent tube length.
5.Normal,the length of the tube from the first manifold (A)to the farthest indoor unit (N11) <= 4 0 m ,but when all the following conditionsaremet, theallowancecanbeextended to 1 2 0 \mathsf { m }
Condition :thediameters between 1stmanifold(A)and the last manifold(J)needto increase onesize;but the branch tube is same to the main tube;
Condition 2:The distance from the indoor unit to the nearest manifold is less than 40m,a、b、c、d、e、f、 9 . . . \mathsf { k } <= 4 0 \mathsf { m } （204号 Condition3:Thediferenceinlengthbetweenthefarthestidoorunit(N11)andthenearestindoorunit(N1)tubefromthefirstmanifold is less than or equal to 4 0 \mathsf { m } , \mathsf { L } 6 + \mathsf { L } 7 + \mathsf { L } 8 + \mathsf { L } 9 + \mathsf { L } 1 0 + \mathsf { k } - ( \mathsf { L } 2 + \mathsf { a } ) <= 4 0 \mathsf { m }
6.If the piping size needs to be increased,the size of the piping is only alowed to be enlarged once.

4-3Diametersofmaintubesforindoorunit

1) Please select the diameter of the main tube of indoor unit according tothe table below,and if themain tubeof indoorunit is larger than the main pipe,select according to the size of the main tube.

2)E.g.:The capacity of 36HP and 18HP is 54HP,assuming the equivalent tube length of the 1st manifold to the outdoor unit >= 9 0 \mathsf { m } , 5 0 （204号 the gas tube and liquid tube is: \Phi 4 1 . 3 / \Phi 2 2 . 2 , the total capacity of all indoorunitsis1910 hundred watts,so the main tube of indoorunit is \Phi 4 4 . 5 / \Phi 2 2 . 2 finallydetermined tobe \Phi 4 1 . 3 / \Phi 2 2 . 2 according to the main tube specification.

4-4Diameters of branch tubes for indoorunit

Thediameterof the indoor branch tubecannotbe larger thanthe main tube,andifthediameterofthebranchtubeselectedaccordingtothe abovetableis largerthanthemaintube,thediameterof thebranch tube shouldbe reducedto thesameasthemaintube. Ifthecapacityof the indoorunitis largerthan thecapacity range in thetableabove,thediameterofthebranchtubeissameasthe indoor unit tube.

4-5Diametersofmain tubes foroutdoorunit

4-6Diametersof own interface on the outdoorunit

4-7Selection of parallel tube assembly and parallel tube diameter for outdoor units Please select the tube as per the Tab.4.8 or Tab.4.9.

Tab.4.8Tube assemblies for multi-connected outdoor units(available Tab3.1 combination mode

Remark:Tube assemblies in the table above are the manufacturer special parts which must be separately ordered.

4-8 Example of a whole pipeline

E.g.: A combination of two modules ( 3 6 H _ { P } + 2 4 H P + 1 4 H P ) is here in used for explaining the selection of tubes. Imagine the equivalent length of all tubes in the schematic system is larger than 9 0 m #

Figure 4.3

1) Main branch tube tor indoor units

1.The total capacity of downstream units N4 and N5 after the main tube L5 is 1 6 0 x 2 = 3 2 0 ,tubeL5is \Phi ^ { 2 2 . 2 / \Phi 1 2 . 7 , } and manifold E is ZP-GN02-A.
2.The total capacity of downstream units N3\~N5 after the main tube L4 is 1 6 0 x 3 = 4 8 0 ,tube \mathsf { L } _ { 4 } is \Phi 2 8 . 6 / \Phi 1 5 . 9 ,and manifold D is ZP-GN03-A.
3.The total capacity of downstream units N2\~N5 after the main tube L3 is 1 6 0 x 4 = 6 4 0 , tube L3 is Φ28.6/Φ15.9,and manifold C is ZP-GN03-A.
4.The total capacity of downstreamunits \mathsf { N } \mathsf { 1 } ~ N5after the main tube L2 is 1 6 0 x 5 = 8 0 0 ,tube L2is \Phi 3 \uparrow . 8 / \Phi 1 9.1,andmanifoldBis ZP-GN03-A.
5.The total capacity of downstream units N10 and N11 after the main tube L10 is 1 6 0 + 2 8 = 1 8 8 ,tube L10 is \Phi 1 9 . 1 / \Phi 9 . 5 2 , and manifold J isZP-GN01-A.
6.The total capacity of downstream units Ng\~N11 after the main tube L9 is 1 6 0 x 2 + 2 8 = 3 4 8 . tube L9 is \Phi 2 8 . 6 / \Phi 1 2 . 7 . and manifold I is ZP-GN03-A.
7.The total capacity of downstream units N _ { 8 } ~ N _ { 1 1 } after the main tube Lg is 1 6 0 x 3 + 2 8 = 5 0 8 . tube L8 is \Phi 2 8 . 6 / \Phi 1 5 . 9 , and manifold H is ZP
GN03-A.

8.The total capacity of downstream units N7\~N11 after the main tube L7 is 1 6 0 x 4 + 2 8 = 6 6 8 tube L7 is \Phi 2 8 . 6 / \Phi 1 5 . 9 ,andmanifold Gis ZP-GN03-A. 9.The total capacity of downstreamunits N6\~N11 after the main tube L6 is 1 6 0 x 5 + 2 8 = 8 2 8 ,tubeL6is \Phi 3 1 . 8 / \Phi 1 9 . 1 ，andmanifoldFisZP-GN03-A 2) Main tube (refer to Tab.4.3/4.5/4.6)

The total capacity of upstream outdoor units before the main tube L1 in Fig.4.3 is 3 6 + 2 4 + 1 4 = 7 4 1 + 1 4 ,referringtoTab.4.5/4.6itisknownthegastube /liquid tub \scriptstyle \mathtt { e } = \Phi 4 4 . 5 / \Phi 2 2 . 2 while the total capacity of downstream units is 1628,referring to Tab.4.3 it is known the gas tube/liquid tube=Φ41.3/Φ19.1 so according to the principle forselecting the larger one,the main tube specification is finally fixed in \Phi 4 4 . 5 / \Phi 2 2 . 2 ，and manifold A is ZP-GN05-A. 3)Main tube for outdoor units

Referring to<lnstallation Instruction of OutdoorManifold>,it is known that g1:Φ38.1/Φ22.2，g2:Φ31.8/Φ15.9，g3:Φ31.8/Φ15.9，G1:Φ41.3/Φ ^ { 2 2 . 2 , 1 + M } ：ZP-GW03-B.

4-9Removal of impuritiesand water in the tube

1) Impurities may enter when the refrigerant tubes are being installed,so theymustbe cleaned before tubesare connected to each outdoorunit. 2) The pipeline can be cleaned by high pressure nitrogen gas other than the refrigerant of any outdoor unit.

4-10Gastightnesstest

1) When the indoor tube is connected,the high pressure tube can be welded to the surface joint,asshown in the figure below.

2) Weld the low pressure tube to the surface joint,as shown is the figure below.

3) Firstly, exhaust the system air from the valve core of the liquid-side shut-off valve and the gas-side shut-off valve by a vacuum pump until the gauge pressure showing -1kg/cm2.

4)Then shut down the vacuum pump,and charge 40kgf /cm2 nitrogen from the valve core of the shut-off valve on both the gas and liquid sides, andmaintain the pressure for24 hours.

Outdoor unit Nitrogen inlet Nitrogen inlet Low pressure tube joint High pressure tube joint Lowpressergas tube Indoor unit High pressure liquid tube

NOTICE

1.Gas tightness test is performed by pressurized nitrogen gas ( 4 . 0 1 \mathsf { M P a } , i.e.40kgf/cm²).
2.Gas tightness test cannotbe performed by oxygen gas,inflammable gas or toxic gas.
3.Gas tightness test must be performed by injecting the high pressure nitrogen gas from the high pressuresideand low pressuresideat the same time,or the indoor electronic expansion valve core may be
damaged by the excessively high pressure at one side.
4.The low pressure valve must be protected by piece of wet cloth during welding.

4-11 Vacuumizing by a vacuum pump

1)The vacuum degree of the vacuum pump is-0.1MPa belowand the airflowrateis40L/minabove.

Fig.4.4 Gas tightness test <br>Fig.4-5 Vacuumizing

2) Vacuumization for the outdoorunit is unnecessary,and it is forbidden to open the check valvesat the gas side and liquid side of the outdoor unit.

3)Make sure the vacuum pump can reach -0.1MPa below within 2 hours,and if itfails to reach-0.1MPa belowafter3 hours,it means some water or air has mixed inside,and the pump and pipeline system must be inspected.

Connect the vacuum pump Run the vacuum pump (>2h) 1.Close the pressure gauge valve.
Keeprunning thevacuumpump 2. Disconnect the pressure gauge
for20\~60minafter the fullvacuum from the vacuum pump.
degreehasreached-0.1MPa 3.Shut down the vacuum pump Stop the vacuum pump Keep vacuum (>1h)

NOTICE

1.Tools and measuring apparatus for different refrigerants or directly contacting the refrigerant cannot be mixed for using. 2. Refrigerant gas cannot be used for air impelling. 3.If the vacuum degree cannot reach -0.1MPa,please check if there is some leakage,and if not,please make the vacuum further run for 1\~2h.

4-12Refrigerant refillingvolume

Calculate theadditional refrigerant amount based on the diameterand length of the liquid side piping connecting the outdoor and indoor units,and add R410A refrigerant.The refrigerant must be quantitatively filled in liquid form using an electronicscale.

1. Calculation method foradding refrigerant

Additional refrigerant quantity R=Additional refrigerant quantity for piping A+Additional refrigerant quantity foroutdoor unit B (1)The calculation method for theadditional refrigerant amount A in piping isas follows: the additional refrigerant amount A in piping = \overline { { 2 } } The length of the liquid pipe x theadditional refrigerant amount permeter of the liquid pipe.

(2)Thecalculationmethod for theadditional refrigerant amountB of theoutdoor unit isas follows:

Theadditional refrigerant amount B for the outdoorunit isequal to theadditional refrigerant amount B1 for the main unit, theadditional refrigerant amount B2 for theslave unit 1,the additional refrigerant amount B3 for the slave unit 2,and the additional refrigerant amount B4 for theslave unit3,B1,B2,B3,B4 are calculated and queried according to the following table.

Note:

1.The combination ratio C is equal to the total rated cooling capacity of the indoor units divided by the total rated cooling capacity of the outdoor units. 2.If all indoor unitsare fresh air unit, the additional amount of refrigerant for the outdoor unit is Okg. 3.If the fresh air indoor unit and the standard indoor unit are installed together, the fillingmethod should be the sameas fillingall standard indoor units.

Example 1:

The system consists of two outdoor units with capacities of 20HP and 10HP connected in parallel,and the indoorunit consists of six cassettes witha capacity of14kW.Therefore thecombinationratiois \mathsf C = 1 4 x 6 / ( 2 8 . 5 + 5 6 ) = 9 9 . 4 % Ifthequantity of indoor unit is greater than 4,according to the table above.Theadditional amount ofoutdoor refrigerant B1withacapacityof2oHP is equal to { 5 . 5 } { \sfkg } ,and theadditional amount of outdoor refrigerant B2 witha capacity of 10HP isequal to 3 . 0 \mathsf {kg } So,the totaladditionalamountofoutdoorrefrigerant \mathsf { B } = 3 . 0 + 5 . 5 = 8 . 5 \mathsf {kg } Assuming the additional refrigerant amount A in the piping is: A = \overline { 2 } liquid pipe length x refrigerant additionalamount permeterof liquid pipe _ { \mathsf { β } = 2 0 \mathsf {kg } } ,thetotal refrigerantadditional amount R of the system is 2 0 + 8 . 5 = 2 8 . 5kg

Example 2:

Thesystem consists of an outdoorunit witha capacity of16HP,and the indoor unit consists of one freshair indoor unit withacapacity of 45kW.So theadditional amount of refrigerant B for the outdoor unit is equal to Okg.Assuming the additional refrigerantamount Ain the piping is:A=length of the collection pipe x additional refrigerantamount permeterof the liquid \mathbf { \sigma = } 5 \mathsf {kg } Thetotaladditional refrigerant amount R in the system is 5 + 0 = 5kg 业

NOTICE

1.Refrigerant R41oA must be weighed for refilling by an electronic weigherintheliquidmode.

4-13 Key points for the installation of outdoor tubes

1) Tubes for outdoor units must be horizontally arranged (Fig.4.6 and Fig.4.7),and no sagging is permited in the middle section,as shown in Fig.4.8.

2) Tubes for outdoorunits cannot be higher than the tube interface of eachunit,asshowninFig.4.9.

3)The manifold shall be installed as horizontally as possible,and the angle error shall be controlled within 1 0 ^ { \circ } ,asany faultmay happen if it is not correctly installed,asshownin Fig.4.10.

Correct mode Fig.4.6Mode 1

Fig.4.7Mode2

Incorrect mode Fig.4.8 Mode 3

4)Manifoldassembliesmustbecorrectly installed to preventoil accumulationintheoutdoorunit.

Fig.4.10Manifoldassemblies installtion <br>Fig.4.11 Installtion 1

Fig.4.9Mode 4 <br>Fig.4.12 Installtion 2

5-1Spot inspection for outdoor unit(Tab.5.1)

NOTICE

1.At standby,it displays the number of indoor units,and when there isa demand forcapacity,it displays the running frequency of the compressor (number of indoor units means the number of units communicating with the outdoor unit).

2. Outdoor unit running mode: 0-Off/Fan mode; 2-Cooling; 3-Heating; 4- Forced cooling.
3.Indoor unit running mode limit: O-auto priority;1-heating priority; 2- cooling priority;3-heating only; 4-cooling only; 5-VIP priority and auto prority.

5.Electrical wiring

5-2 Description of the board

See Tab.5.2

5-3Dialing code indication mark

SeeTab.5.3andTab.5.4.

5-3Parametercheck instructions

1) Historical fault query

Press the [+] and [-] buttons to switch the inspection parameters to item 60, which represents the most recent fault;② Press and hold the [coo1] button for more than 3 secondsatthis position to enter historical fault inquiry.Press the[+]and[-]buttons to switch fault sequence numbers.n1 indicates the second-to-last fault,n2.indicates the second-to-last fault,and so on...n63 indicates the last fault.A maximum of 64 historical faults can be stored,and they can be saved even after power loss. Enter fault Afterquerying records,if there isno operationwithin20 seconds,it willautomatically return to frequency display or standby display.

2) On-site parameter setting

① In the normal display state, long press the [coo1] key for more than3 seconds toenterthe parametersetting function.At this time,Pxisdisplayed ( " x ^ { * } represents a number, which is the serial number of the parameter),The serial numbers from1 to 99 are preceded by " { \mathfrak { p } } " while those above i0o are not.You can select the serial number for which you want toset parametersbypressing the[+]or[-]button,For example,P1, P2,P3,100,101,etc.Pressing the [coo1] keyagainwill enter theparameter corresponding to the sequence number for selection and seting.After selecting the serial number for which the parameter needs to be set, you can press the [ + ] or[-]key tochange the corresponding parameter value.Once you have selected the appropriate parametervalue,press thekey again briefly【coo1】Save the parametersand return to the selection of \mathsf { P x } parameter number. (After selecting the set parameters,if there is no operation for10 seconds,it will be saved automatically. If there is no operation for 20 secondsAutomatically return to frequency display or standby display.

3)Forced cooling function

Press the [coo1] key briefly to enter forced cooling mode.The outdoor unit will automatically poweron,and all indoorunitswill automatically turnon.After running forone hour, it will automatically exit or you can press it againThe [coo1] button can also be used to immediately exit forced cooling.

5-4Terminal functions

See Fig.5.1 and Fig.5.2.

5-5Electricalsystemand installation

1) Precautions in electrical wiring

1.The power supplies for indoor unit and outdoor units shall be separatelydesigned.

2.The power supply must be designed with special branch circuit,and equippedwithcurrent leakage protectorandmanualswitch.

3.Power supply,current leakage protector and manual switch connected to the same outdoor unit must be with the versatility.(The indoorunit power supply in the same systemmust be in the same circuit andswitched on oroff atthesame time,or the systemservice life may be shortened and the machine may fail in starting up.)

4.The indoor and outdoor connecting and wiring system shall be included in the same system with the refrigerant tube system. 5.To reduce the interference,the indoor and outdoor signal line shall be the2-core shielded cable other than unshielded multi-core cable. 6.Electrical wiring shall be performed according to national related standards. 7.Electrical wiring must be done bya professional electrician.Supply cords of parts ofappliances foroutdooruse shall notbe lighter than polychloroprene sheathed flexible cord (code designation 60245 IEC 57). 8.The indoor unit and outdoor unit must have a reliable grounding wire,

2) Power supply cable for outdoor unit

1.Powercablediameterandaircircuitselection

Fig.5.1Power supply terminal <br>Fig.5.2Communication terminal

NOTICE

P Q E H1H2 ④④④④④ IDU ODU Centralized COMM. COMM.Controller

1.Each unit hasa separate power supply,so the electrical wiring for each unit shall comply with the corresponding standard.(Tab.5.4) 2.Thediameterand continuous length of cables in the table is for the situation when the voltage drop is within 2 % ,and the cable diameter shall be selected as per the related specification if the continuous length goes beyond thevalue in the table.

Fig.5.3Power supply device 1

X Incorrect Mode

Fig.5.4 Power supply device 2

NOTICE

1Itisforbddentooctroundiefeligtgprotetiodvicetoaceasingeondireofteligectio devicemust be configured separately from the powersupply ground wire.

3) Cable of power supply for indoor unit

Fig.5.5 Indoor unit power supply

NOTICE

1.Therefrigerntubednitiditndidonitdonitoctidialisesidint.
2.All indoor units of a same system must be fed by the uniform power supply.
3.Whenthepoesuplylinsprallithinalintyussolatedableutesdsacdieohstace.l
linespace: 3 0 0 \mathsf {mm } for10Abelow, 5 0 0 \mathsf {mm } for 50A below)
4.When multiple outdoor units are parallel connected,the addresses foroutdoor units must be correctly set.

5-6 Signal cable between indoor and outdoor units

1) 3-core shielded cable ( \ge 0 . 7 5 \mathsf {mm } ^ { 2 } ) shallbeused forthe signalcable betweenindoorandoutdoorunits,thecable mustbeconnected in correct polarities,and thesignalcable between theindoorandoutdoorunitscanbeonlyledoutfrom themasteroutdoorunit.

Fig.5.6 Signal cable between indoorand outdoor units

Remark:

Please add a 1ooΩ resistance between Pand Q terminal of the last indoor unit when it is needed (The communication is not stable or too many indoorunits in one system).

5-7Example forelectrical wiring (Power supply 380-415V3N\~ 50Hz)

See Fig.5.7.

Fig.5.7 Example for electrical wiring

Remark:

1.Whenallthe indoor part power consumption is too big,this connection method is not available
2.When the 3 phase power supply is not stable,this connection method is not allowed;
3.In case of this problem asabove,please power indoor and outdoor part individually.

6. Trial running

6-1 Inspection and confirmation before debugging

1) Check and make sure the refrigerating pipeline and communication line between the indoor and outdoor units are in the same refrigerating system,or some operation fault may occur.

2) The voltage power supply is within ± 1 0 % of the rated voltage. 3) Check and make sure the power supply line and control line are correctly connected.
4)Make sure there isnot short circuitbefore the system is electrified. 5) Make sure all units have passed the 24h nitrogen pressure
maintaining test (4.0MPa).
6)Make sure the system is fully vacuumized,dried and filled with the refrigerantasper thespecification.

6-2 Preparation before debugging

1) Calculate theamountof refrigerant to be refilledasper the field liquid tube length.

2)Prepare the required refrigerant.

3) Prepare the system planar drawing,system pipeline drawing and control line drawing.

4) Record the well set address codes on the system planar drawing.

5) Turn on the outdoor unit power supply switch in advance,and make sure it is connected formore than12h to make the heater heating the compressor oil.

6)Fully open the outdoor unit gas tube check valve,liquid tube check valveandoilbalancevalve,or themachinemaybedamaged.

7) Check if the phase sequence of the outdoor unit power supply is correct.

8) Check if all dialing switches of the outdoor and indoor units are set as per the product technical requirement.

6-3Namefillingofconnectedsystems

Whensetting several indoorunits,each connecting systemof the indoor unitand outdoor unitsshall be identified and named and recorded on the nameplate of outdoorunit electrical control box cover.

Fig.6.1Name fillingofconnectedsystems

6-4 Precautions against refrigerant leakage

1) The refrigerant itself of thisair conditioner is harmless,nonflammable andsafe.

2)Theairconditioner roomshall be of a suitable space size so that the refrigerant concentration will not go beyond the limit even if leakage happens,and some necessarymeasures can be takenadditionally.

3)The critical gas concentration harmless for the human body is 0 . 3 \mathsf {kg } / \mathsf { m } ^ { 3 }

4) Confirm the critical concentrationas per the following steps and take necessarymeasurescorrespondingly.

1.Calculate the full volume of refrigerant to be filled (A[kg])

Full refrigerant volume \mathbf { \tau } = \mathbf { \tau } refrigerantvolumeat delivery (see the nameplate) ^ + refrigerant volume to be refilled for the corresponding tube length

2.Calculate the indoor cubage \scriptstyle ( { \mathsf { B } } [ { \mathsf { m } } ^ { 3 } ] ) (as per the minimum cubage)
3.Calculate the refrigerant concentration

Fig.6.2Refrigerant leakage

5)Measuresagainst exceeding thecritical concentration

1.Tocontrol therefrigerantconcentration belowthecritical concentration,amechanicalair ventilating deviceshall be installed (for frequent air ventilating).

2.If frequent air ventilating cannot be realized, please install a leakage warningand detectingapparatus interlinked with the mechanical air ventilatingdevice.

3.The leakage warning and detecting apparatus shall be installed in a placewith dense refrigerant accumulation.

Fig.6.3 Air exchange

6-5Handovertotheclient

1)The Instruction Manual for the indoorunit, Instruction Manual for the outdoor unit and Direction for Customer Service must be submitted to the client.

2) Explain the content of Instruction Manual to the client carefully.

6-6 Correct Disposal of this product

区

Thismarking indicates that this product should notbe disposed with other household wastes throughout the EU.To prevent possible harm to theenvironment or human health from uncontrolled waste disposal,recycle it responsibly to promote the sustainable reuse of material resources.To return your used device, please use the return and collection systems or contact theretailerwhere the product was purchased.They can take this product for environmental safe recycling.

Appendix 1 Installation Instruction of Outdoor Manifold

Availableforthemanifoldof3outdoorunitscombination

ComponentList

EssentialsforSelectior

Tube AssemblyComparisonTable

Howtoselect the connection tube assemblyforoutdoorunits.

Tubeassemblies for R410A outdoor unit

Notethe HorizontalLocation Notes

Notes

1) Pay attention to the distance of straight horizontal pipe.

A.Thedistanceof thestraight horizontal pipe between the twoneighboringmanifoldsshallbegreaterthanorequalto0.5m. B.Thedistance of thestraight horizontal pipeconnectingthe indoor unit after the manifold shall be greater than or equal to 0.5m.

Instruction forInstallatior

Q2 H 目 Q1 Q4 Q3 □

Q2
Abandon 山 Q3 Q1 Q4 M Cut from here 1)Selectmanifoldsinaccordance withtheguidelinesfor thedesignedmodelaccording tothenumberoftheoutdoor unitsconnectedinparallel.
2)Cutundesiredportionbythededicated tools(suchascutters)inaccordancewiththeactualpipediametersize. TakingtheZP-GW-O2-Bforgassideasanexample,theoperatingstepsareshownas follows:
a.AfterthemodelSP-FQG-W2Disselected,theobtainedactual material isshowninFigure1.
Assume the current unit outlet pipe is \Phi ^ { 3 1 . 8 } and the main pipe is p38.1, cut the independent pipe Q1 manifold assembly according toFigure2
b.Theindependent pipeQ1and Q3shallbeweldedwith U-shaped teeQ4according toFigure2.Anddiscard the independent
pipeQ2 since thepiping diametercan bedirectly matched with the U-shaped teeat the unwelded end.
ThemanifoldassemblyshallbeweldedwiththepipeatsiteaccordingtoFigure3.
3)Payspecialattentiontothe treatment of thefollowingspecial circumstances：
a.WhentheactualpipediametermatcheswiththeU-shaped teeattheun-welded end,weldthepipewith the U-shaped teedirectly.
b.ForthepipeQ3andQ7cutitattherootoftheflaredendinaccording toFigure4ifitisnecessary
4)Theinstalationdiagramisforreferenceonly,pleasebesubjecttotheactualproduct.Theproductmaybe upgraded without notice.

Figure 1

Figure 2 <br>Figure 3

L Q7 Cut from essential part

Outline Dimensions and Wiring Diagram of ZP-GW02-B or ZP-GW02-C

Figure 4

Outline Dimensionsand Wiring Diagram of ZP-GW03-B or ZP-GW03-C

Appendix 2 Installation Instruction of Outdoor Manifold

Availableforthemanifoldof4outdoorunitscombination

Component List

EssentialsforSelection

TubeAssembly ComparisonTable

Essentials forCutting

Howtoselect theconnection tube assemblyforoutdoorunits.

Tube assemblies for R410A outdoor unit

InstructionforInstallation

Notes

1) Pay attention to the distance of straight horizontal pipe.

A.Thedistanceof thestraighthorizontal pipebetweenthe twoneighboringmanifoldsshallbegreaterthanorequalto0.5m. B.Thedistance of the straight horizontal pipeconnectingthe indoor unit after the manifold shall be greater than or equal to 0.5m.

1)Selectmanifolds inaccordance withtheguidelines for thedesignedmodelaccording tothenumberoftheoutdoor unitsconnected inparallel.
2Cutundesiredportionbythededicatedtools(suchascutters)inaccordancewiththeactualpipediametersize. TakingtheZP-GW-02-Bforgassideasanexample,theoperatingstepsareshownasfollows
a.Afterthemodel SP-FQG-W2Disselected,theobtainedactual material isshowninFigure1.
Assume the current unit outlet pipe is \boldsymbol { \varphi 3 1 . 8 } and the main pipe is φ38.1, cut the independent pipe Q1 manifold assembly according to Figure2.
b.Theindependentpipe Q1andQ3 shallbe welded withU-shaped teeQ4according toFigure2.Anddiscard the independent
pipeQ2 since the piping diameter can be directly matched with the U-shaped teeat the unwelded end.
C.Themanifoldassemblyshall beweldedwiththepipeatsiteaccordingtoFigure3.
3)Payspecial attentiontothe treatment ofthe followingspecialcircumstances:
a.When'theactualpipediametermatches withtheU-shaped teeattheun-welded end,weldthepipewith the U-shaped teedirectly.
b.ForthepipeQ3andQ7cutitattherootoftheflaredendinaccording toFigure4ifitisnecessary
4)Theinstalationdiagramisforreferenceonlypleasebesubject totheactualproduct.Theproducfmaybe upgraded without notice.

Q2 Q1 中 Q3 Q4 □

Q2[
Abandon 1 Q3 Q1 Q4 Cut from here

Figure 1 <br>Figure 2 <br>Figure 3 <br>Figure 4

Q71 Cut from essential part

Appendix 3Manifold assembly for indoorunitmanual

Component List

figure 1

figure 2

Installationinstructions

1.According the total capacity ot all indoor units to select manitold.
2.According totheactualpipingdiametersize,cutoftheunwantedpart,forexampleZP-GNo1-Atheoperationisasfolows.
a)When select manifold ZP-GNo1-A,the actual product is shown in figure 1,assume the tube is \Phi 1 5 . 8 8 cut the manifold such as figure 2.
b)The independent pipesare thencutasshown inFigure 2.
c)Theindependent pipeisweldedwithaU-shapedtee.
d)The manifold is welded with site piping.

1) Pay attention to the distance of straight horizontal pipe.

A.The distance of the straight horizontal pipe between the two neighboringmanifoldsshall be greater than or equal to 0 . 5 m B.The distance of the straight horizontal pipe connecting the indoorunitafter the manifold shall be greater than or equal to 0 . 5 m