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6.1  Outdoor unit wiring terminal instructions 

3. Please use attached heat-insulating materials do the heat  
insulation without clearance for the connecting parts of the  
indoor unit pipes.  

Cut from upward 

K 1   K 2     E     O     A     E   X     Y     E     P     Q     E  

Site pipe side 

The unit body 

Affiliated heat pump belt 

Fig.5-13 

Outdoor unit 

central monitor  

Digital             Indoor unit  

    

Indoor unit 

    

electric meter    central monitor     central monitor  

5.12   Refrigerant Amount to be Added 

NOTE:Use 3-core shielded wire to ground wiring  

Calculate the added refrigerant according  to the diameter and  
the length of the liquid side pipe of the outdoor unit/indoor unit  
connection. Calculate the  refrigerant adding amount, adding  
refrigerant R410A. 

Fig.6-1 

Table 5-13 

Liquid Side Piping   
      Diameter  

Refrigerant to be Added   
     Permeter Piping  

A    B    C   N  

Φ6.4  

Φ9.5  

0.022kg  

0.057kg  

XT2  

Φ12.7  

Φ15.9  

0.110kg  

0.170kg  

380-415V 3N~  50Hz 

Fig.6-2 

NOTE: Outdoor unit central monitor, digital electric meter, indoor unit  
            central monitor are all optional components in the dotted box, 
            if necessary, please contact to the local dealer to buy those.  

NOTE: R410A refrigerant should be added in liquid quantifiedly by   
            electronic scale.  

5-13  Manifold installation key points 

Install it in a horizonal level, error angle should less than 10°. 
It may result in damage if installing in a wrong way    

6.2  Indoor unit system wiring 

1.  Individual power supply (without power supply device)  
     (See the table below)  

Table 6-1 

Fig.5-14 

CAUTION 

Wiring diameters and continuous lengths in the table are the  
situation that  voltage decrease degree is within 2%, when the  
wiring continuous length exceeds the values in the table, choose  
the wire diameter according to regulations     

CAUTION 

Please select power source for indoor unit and outdoor unit  
respectively. 

The power supply has specified branch circuit with leakage  
protector and manual switch.  

The outdoor unit model which corresponding to different outdoor 
unit power supply should refer to the nameplate.(Please set all  
the indoor unit power of one system into the same branch circuit.) 

Please put the connective wire system between indoor unit and  
outdoor unit with the refrigerant system together. 

Use 3-core shielded wire as indoor unit and outdoor unit signal  
wire.  

The installation should comply with local electric standard.  

Power wiring should be engaged by specialized electrician.  

installation manual 

10 

Summary of Contents for KMF-400 DN3

Page 1: ...ou very much for purchasing our air conditioner Before using your air conditioner please read this manual carefully and keep it for future reference INSTALLATION MANUAL Amazon Unitario KMF 400 DN3 KMF 450 DN3 ...

Page 2: ...refrigerant gas doer not leak CAUTION New Refrigerant Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER The characteristics of R410A refrigerant are Hydrophilic oxid izing membrane or oil and its pressure is approx 1 6 times high er than that of refrigerant R22 Accompanied with the new refrig erant refrigerating oil has also b...

Page 3: ...gth of indoor outdoor unit liquid side pipes 2 Mark refrigerant adding amount pipe diameters of pipe length actual length and height difference between indoor and outdoor unit on the usage confirm form of outdoor unit on electronic control box plate in advance in order to further use 3 2 Refrigerant pipe 1 Use the central air conditioner specified refrigerant pipe 2 Refrigerant pipe with specified...

Page 4: ...tion of the machine may be caused Fig 4 4 There is combustible gas leakage 4 2 Handling There is much oil including engine oil ingredient There is salty air surrounding near the coast 1 Do not unpacking the unit when handling Use two ropes whose lengths are more than 8m to handle the unit Keep balance of the unit when lifting stably Use a padding plate or packing materials for protection if the pa...

Page 5: ...act symmetrically Fig 4 8 Ensure the the basement supports the vertical foldings of the front and back bottom plates directly since its the actual bearing place Macadam base is unnecessary But cocrete surface should be roughed The proportions used in mixing the concrete should be cement 1 sand 2 pebble 4 including Φ10reinforced rebar Even the surface of concrete The edge of the basement should be ...

Page 6: ... d L4 L5 The first manifold D E N4 C Fig 5 2 Table 5 2 e f N5 N6 Tightening torque Pipe dimensions N m Fig 5 4 14 2 17 2 N m 144 176 kgf cm φ6 4 32 7 39 9 N m 333 407 kgf cm CAUTION φ9 5 49 5 60 3 N m 504 616 kgf cm All the manifolds used should be specialized ones designated by our company Fail to follow the requirements could lead to system error φ12 7 61 8 75 4 N m 630 770 kgf cm φ15 9 If the d...

Page 7: ...0 5m Elbow connecting instruction Main pipe diameters of connecting pipes Connecting pipe bending process Use the maximum indoor and outdoor connecting pipe diameter Cut the pipe at A insert the main pipe and weld Φ22 2 Joint dimension Cut the pipe at A flare and weld Φ25 4 Φ28 6 Table 5 6 Pipe diameters of the indoor unit joint Insert main pipe directly and weld Refrigerant Model Gas side Liquid ...

Page 8: ... maximum principle adopt Φ28 6 Φ12 7 Fig 5 5 CAUTION Suppose in the displayed piping system the total equivalent piping length of air side liquid side is longer than 90m Connecting method Table 5 10 Gas side Liquid side Flare welding Flare welding 1 Indoor unit branch pipe Outdoor unit 40kW Outdoor unit 45kW Flare welding Flare welding Inner branch pipes are a f the size selection please refers to...

Page 9: ...sure there is no any dirt or water before connecting the pipe to the outdoor units Liquid side stop valve Gas side stop valve 2 Wash the pipe with high pressure nitrogen never use refrigerant of outdoor unit 5 7 Airtight Test 1 Connect the high pressure side pipe and liquid side stop valve after connecting indoor unit pipes Nitrogen Nitrogen Liquid pipe Gas pipe Meter connector components used for...

Page 10: ... side Fig 5 9 Fig 5 11 5 10 Leakage inspection Inspect each joint to check if it leaks by using a leak detector CAUTION or suds Fig 5 12 Do not mixedly use tools used for different refriferant tools and measuring instrument that directly contact refriferant DO NOT use refriferant gas to air discharge NOTE A liquid side stop valve B gas side stop valve C and D are the joint of the indoor unit conne...

Page 11: ...refrigerant should be added in liquid quantifiedly by electronic scale 5 13 Manifold installation key points Install it in a horizonal level error angle should less than 10 It may result in damage if installing in a wrong way 6 2 Indoor unit system wiring 1 Individual power supply without power supply device See the table below Table 6 1 Fig 5 14 CAUTION Wiring diameters and continuous lengths in ...

Page 12: ...6 3 Outdoor unit main control board Fig 6 3 installation manual 11 ...

Page 13: ... Loading output terminal EXV A driving port Reserved Control port of DC fan A EXV B driving port Loading output terminal Control port of DC fan B Current inspection port of the inverter compressor A and B Loading output terminal Loading output terminal Power supply connected port of the main control panel Power output of the No 1 transformer 6 5 Dial indication sign instructions ENC3 and S12 defin...

Page 14: ...CCB and manual switch Cooling priority mode 3 Power supply RCCB and manual switch used for a same indoor unit should have universality Indoor unit power supply for the same unit should use the same circuit and ON OFF simultaneously or it could seriously affect the system service life and the unit may fail to power on Number 63 the more operating mode first Only respond the heating mode 4 Consider ...

Page 15: ...copressor and other components PQE connects to weak current signal wire don t connect it to strong current All the connecting terminal should be fastened reliably ground wire should be grounded correctly Use wiring terminal power supply wire with a torus After power supply wire has been connected to the wiring base it needs to be reliably fastened Power on after a careful inspection and make sure ...

Page 16: ...ant critical thickness 0 44 kg m3 for R410A Outdoor unit Indoor unit Room full of leak refrigerant All refrigerant has run up Confirm the critical thickness through follow steps and take necessary actions 1 Calculate the sum of the charge volume A kg Total refrigerant volume of 10HP factory refrigerant volume super addition 2 Calculate the indoor cubage B m as the minimum cubage 3 Calculate the re...

Page 17: ... normal If there s vibration and abnormal noise when operating Test if heating function works normally for heating and cooling A C 2 Outdoor unit If there s vibration and abnormal noise when operating Whether the wind and noise and condenser water could influence your neighbour If there s refrigerant leakage CAUTION When electrified start the unit immediately or reboot after shutdown A C has prote...

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Page 19: ...ch having a contact separation of at least 3mm in all poles should be connected in fixed wiring The appliance shall be installed in accordance with national wiring regulations The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube The power cord type designation is H05RN R or above H07RN F MD13I 052CW DZD 16127000A03538 ...

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