Midea M-thermal Split MHA-V10W/D2N8 Installation And Owner'S Manual Download Page 3

Page: 3 / 48

CONTENTS

Accessories supplied with the unit

2.1

Selecting a location in cold climates
Prevent sunshine

5.1
5.2

Precautions on electricl wiring work
Precautions on wiring of power supply
Remove the switch box cover
To finish the outdoor units insulation

8.1
8.2
8.3
8.4

Dimensions
Installation requirements
Drain hole position
Servicing space requirements

6.1
6.2
6.3
6.4

SAFETY CONSIDERATIONS

ACCESSORIES

BEFORE INSTALLATION

IMPORTANT INFORMATION FOR THE REFRIGERANT

INSTALLATION SITE

INSTALLATION PRECAUTIONS

OUTDOOR UNIT WIRING

INSTALLATION THE CONNECTING PIPE

13
14
14

Rrfrigerant piping
Leakage Detection
Heat insulation
connecting method
Remove dirt or water in the pipe
Airtight test
Air Purge with Vacuum Pump
Refrigerant amount to be added

7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8

09
09
10
10

Summary of Contents for M-thermal Split MHA-V10W/D2N8

Page 1: ...ALLATION AND OWNER S MANUAL Thank you very much for purchasing our product Before using your unit please read this manual carefully and keep it for future reference IMPORTANT NOTE MHA V4W D2N8 MHA V6W...

Page 2: ......

Page 3: ...requirements Drain hole position Servicing space requirements 6 1 6 2 6 3 6 4 6 SAFETY CONSIDERATIONS ACCESSORIES BEFORE INSTALLATION IMPORTANT INFORMATION FOR THE REFRIGERANT INSTALLATION SITE INSTA...

Page 4: ...mbling the unit Electronic control box 4 10kW units 9 1 9 2 9 3 11 PRECAUTIONS ON REFRIGERANT LEAKAGE 21 22 29 24 24 24 24 24 24 Protection equipment About power cut Heating capcity Compressor protect...

Page 5: ...01 8 10 kW 4 6 kW 8 10 kW 4 6 kW Please remove the hollow plate after installation Wiring diagram 8 10kW for example Electric Control System Refrigerant System...

Page 6: ...following types They are quite important so be sure to follow them carefully Meanings of DANGER WARNING CAUTION and NOTE symbols Indicates an imminently hazardous situation which if not avoided will...

Page 7: ...and fire Make sure all wiring is secure Use the specified wires and ensure that terminal connections or wires are protected from water and other adverse external forces Incomplete connection or affixi...

Page 8: ...ed Children should not play with the unit Cleaning and user maintenance should not be done by children without supervision Children should be supervised to ensure that they do not play with the applia...

Page 9: ...Fittings Water outlet connection pipe assembly Before installation Be sure to confirm the model name and the serial number of the unit Handling 3 BEFORE INSTALLATION Energy label 1 05 1 Handle the uni...

Page 10: ...GERANT This product has the fluorinated gas it is forbidden to release to air Refrigerant type R32 Volume of GWP 675 GWP Global Warming Potential Factory charged refrigerant volume in the unit Refrige...

Page 11: ...can be installed at an even level Places where there is no possibility of flammable gas or product leak The equipment is not intended for use in a potentially explosive atmosphere Places where servic...

Page 12: ...to avoild direct sunlight so that it is not influenced by the sun s heat otherwise protection may be possible to the unit Make sure there is enough space to do the installation Set the outlet side at...

Page 13: ...ration In accordance with the foundation drawing in the figure fix the unit securely by means of foundation bolts Prepare four sets each of 10 Expansion bolts nuts and washers which are readily availa...

Page 14: ...unit with the base electric heater CAUTION Drain hole This drain hole is covered by rubber plug If the small drain hole can not meet the drainage requirements the big drain hole can be used at the sam...

Page 15: ...0mm 1 2 H B2 A B1 C H Unit A mm B1 mm B2 mm C mm 4 10kW 3000 2000 300 600 11 7 INSTALL THE CONNECTING PIPE Check whether the differance in height between the indoor unit and outdoor unit the length of...

Page 16: ...every joint whether leak or not Refer to Fig 7 2 Note A is high pressure side stop valve B is low pressure side stop valve C and D is connecting pipes interface of indoor and outdoor units Check poin...

Page 17: ...e between indoor unit and outdoor unit should not exceed 20m if the outdoor unit is above or 15m if the outdoor unit is below Additionally i If the outdoor unit is above and the level difference is gr...

Page 18: ...ld never use any oxygen flammable gas or poisonous gas Model Refrigerant to be added 4 6 kW 20g m 7 7 Air Purge with Vacuum Pump 1 Using vacuum pump to do the vacuum never using refrigerant to expel t...

Page 19: ...heating of the capacitor due to high frequency waves Never install a phase advancing capacitor as it could lead to an accident Secure the electrical wiring with cable ties as shown in figure so that...

Page 20: ...ccording to the national wiring regulation 2 Select circuit breaker that having a contact separation in all poles not less than 3 mm providing full disconnection where MFA is used to select the curren...

Page 21: ...ore shielded wire NOTE OUTOOOR UNIT POWER SUPPLY L N LPS FUSE P Q E 6 7 8 INDOOR UNIT L N E P Q A B C D E F 8 5 To finish the outdoor unit installation insulate and fix the refrigerant piping and inte...

Page 22: ...stops then pull its right edge so you can removed the grill You can also reverse the procedure Be careful to avoid hand injury WARNING Switch off all power i e unit power supply and backup heater and...

Page 23: ...PCB A PCB B 8 10kW 19 9 8 6 4 5 7 1 2 3 9 3 4 10kW units 1 PCB A Inverter module The picture is for reference only please refer to the actual product NOTE...

Page 24: ...CN2 Reserved CN30 Port for electrical expansion value CN33 24 25 26 Digital display DSP1 Port for chassis electrical heating tape CN16 optional Port for compressor eletric heating tape 1 CN7 Port for...

Page 25: ...ly Install leak alarm facility related to mechanical ventilator if you can not regularly ventilate 2 Requirments for charge limits in unventilated areas The maximum refrigerant charge in appliance sha...

Page 26: ...gerant Indoor unit Room is filled of leakage refrigerant All refrigerant has leaked out 8 10kW Fig 11 2 Fig 11 3 12 TURN OVER TO CUSTOMER The owner s manual of indoor unit and owner s manual of outdoo...

Page 27: ...with a hard pointed object The remote controller may be damaged Never replace a fuse with that of wrong rated current or other wires when a fuse blows out Do not use the heat pump for other purposes I...

Page 28: ...3 2 About power cut If power is cut during operation stop all the operation immediately Power comes again If the auto restant function is set on then the unit will auto restart Mishandling in operatio...

Page 29: ...adhesive 3 The Th sensor failure change a new sensor Suction temperature sensor Th error 1 wire doesn t connect between main control board PCB B and main control board of hydraulic module connect the...

Page 30: ...ure change a new sensor Pressure sensor failure Refer to P0 Low pressure protection Pe 0 6 occured 3 times in an hour Refer to H6 H6 displayed 10 times in 2 hours 1 The EEprom parameter is error rewri...

Page 31: ...sensor is loosen Reconnect it 3 T1 temp sensor is loosen Reconnect it 4 T5 temp sensor is loosen Reconnect it High discharge temperature protection 1 Power supply voltage of the unit is low increase...

Page 32: ...damaged change it 3 And if those IGBT are OK which means the inverter board is OK power form rectifier bridge is not correct check the bridge Same method as IGBT disconnect the power check those dioxi...

Page 33: ...57kg 67kg Gross weight 68kg 79kg Gas side Liquid side Drain connection Max piping length 30m Max differance in height when outdoor unit is upside 20m Max differance in height when outdoor unit is down...

Page 34: ...g the period that the work is carried out The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere 8 Checks to the refrigeration equipment...

Page 35: ...sed the system shall be vented down to atmospheric pressure to enable work to take place This operation is absolutely vital if brazing operations on the pipe work are to take place Ensure that the out...

Page 36: ...ce or decommissioning it is recommended good practice that all refrigerants are removed safely When tranferring refrigerant into cylinders ensure that only appropriate refrigerant recovery cylinders a...

Page 37: ...Electronic expansion Valve Single way electromagnetic valve Pipe joint Filter Discharge line sensor Outdoor temperature sensor Outdoor exchanger sensor Stop valve gas Stop valve liquid High Pressure...

Page 38: ...on Switch must be installed to the Power Supply of the unit PE PE RL2 BLACK BLUE RED FORCE_COOL CHECK NO COM L OUT PCB A Inverter board for 1phase PCB B Main control board for 1phase SW1 SW2 SW3 ON 3...

Page 39: ...35 NOTE...

Page 40: ...16125300001999 V2 0...

Page 41: ...A4 105g 100g...

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Midea M-thermal Split MHA-V10W/D2N8, Installation And Owner'S Manual

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