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Summary of Contents for mundoclima MAXI MVD V8X
- Page 1 OUTDOOR UNIT Installation and owner's manual and information requirements MAXI MVD V8X CL23650 to CL23662 English www.mundoclima.com...
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Page 2: Table Of Contents
CONTENTS ABOUT THE DOCUMENTATION OVERVIEW Meaning of Various Labels SYSTEM INFORMATION USER INTERFACE BEFORE OPERATION OPERATION Operating Range Operating System Dry Program MAINTENANCE AND REPAIR Maintenance After the Unit Has Been Shut Down for a Long Period Maintenance Before the Unit Is Shut Down for a Long Period About the Refrigerant After-sales Service and Warranty TROUBLESHOOTING... - Page 3 OUTDOOR UNIT COMBINATION Overview Branch Joints Recommended Outdoor Unit Combination PREPARATIONS BEFORE INSTALLATION Overview Choosing and Preparing the Installation Site Selecting and Preparing the Refrigerant Piping Selecting and Preparing the Electrical Wiring 5 OUTDOOR UNIT INSTALLATION Overview Opening the Unit Installing the Outdoor Unit Pipe Welding Fushing Pipes...
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Page 4: About The Documentation
4 BEFORE OPERATION ABOUT THE DOCUMENTATION 1 OVERVIEW WARNING 1.1 Meaning of Various Labels This unit consists of electrical components and hot parts (danger of electric shock and This document contains important precautions and scalding). things to note. Please read them carefully. Before you operate this unit, make sure that the WARNING installation personnel have installed it properly. -
Page 5: Operation
5.2.2 Cooling, heating, fan only Heating and cooling. and, auto operations Fan-only operation. Specialized functions vary depending on the type of The indoor units in the air conditioner can be controlled indoor unit. Refer to the installation/user manuals for separately, but the indoor units in the same system more information. -
Page 6: Dry Program
5.3 Dry Program 5.2.3 Heating operations 5.3.1 System operations Heating usually takes longer than cooling. Perform the following operations to prevent the heating The function of this program uses the minimum capacity from dropping or to prevent the system from temperature drop (minimum indoor cooling) to lower the outputting cold air. -
Page 7: Maintenance After The Unit Has Been Shut Down For A Long Period
WARNING WARNING The refrigerant in the air conditioner is When the fuse melts, do not use any relatively safer and usually does not leak. If unspecified fuses or other wires to replace the the refrigerant leaks, and comes in contact original fuse. -
Page 8: Troubleshooting
7 TROUBLESHOOTING 6.4.3 Shorter maintenance and replacement cycle The warranty does not cover the damage caused by dismantling or cleaning of the internal components by In the following situations, the "maintenance cycle" and unauthorized agents. "replacement cycle" may be shortened. If the unit is used in the following situations: Temperature and humidity fluctuations are outside WARNING... -
Page 9: Error Code: Overview
7.1 Error Code: Overview If an error code appears on the controller, please contact the installation personnel and inform them of the error code, device model, and serial number (you can find the information on the nameplate of the unit). Table 7.3 Outdoor unit error code Manual restart Error code... - Page 10 Table 7.4 Installation and debugging error code Manual restart Error code Error description required Outdoor unit type setting error Capacity setting error The system contains the 1st generation indoor unit or the indoor units address are repeated Only hydraulic module available for system IDUs Common IDU and constant temperature and humidity modular AHU in the system Common IDU and reheat type fresh air modular AHU in the system Non-common IDU in the system...
- Page 11 Table 7.6 Fan motor error code Manual restart Error code Error description required xJ01 xJ1* or xJ2* error occurs 10 times in 60 minutes xJ11 Software overcurrent xJ12 Software overcurrent protection lasting 30s xJ1E Hardware overcurrent xJ2E Inverter module high temperature protection xJ3E Bus low voltage error xJ31...
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Page 12: Fault Symptom: Non Air Conditioning Issues
7.2 Fault Symptom: Non Air A loud creaking "pishi-pishi" sound can be heard once the system stops after it has heated up the room. The Conditioning Issues expansion and contraction of plastic parts caused by temperature changes will also make this noise. The following fault symptoms are not caused by the air conditioning: Once the indoor unit stops, a soft "sah"... -
Page 13: Installation Manual
INSTALLATION MANUAL NOTE The figure shown in this manual is for 1 OVERVIEW reference only and may be slightly different from the actual product. 1.1 Notice to Installation Personnel Improper installation connection equipment and accessories may cause electrical shock, short circuits, leaks, fires, or 1.1.1 Overview other damage to the equipment. - Page 14 1.1.4 Electricity WARNING Take appropriate precautions to prevent WARNING refrigerant leakage. If the refrigerant gas leaks, ventilate area immediately. Make sure you switch off the power of the Possible risks: excessively high unit before you open the electric control box, concentration of refrigerant in an enclosed and access any circuit wiring or components area can lead to anoxia (oxygen deficiency).
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Page 15: Notice To Users
WARNING WARNING To prevent electrical shock or fire: Make sure all terminals of the components are firmly connected before you close the Do not wash the electric box of the unit. cover of the electric control box. Before you Do not operate the unit with wet hands. power on and start the unit, check that the cover of the electric control box is tight and Do not place any items that contain water on... -
Page 16: Unboxing The Outdoor Unit
Center of gravity position is shown in Figure 2.2: Table 2.1 Unit: mm Model 8-12HP 14-16HP 18-20HP 1340 22-24HP 1340 26HP 1880 Figure 2.3 28-32HP 1880 2.2 Unboxing the Outdoor Unit 8-16HP REAR Take the unit out of the packing materials: Be careful not to damage the unit when you use a cutting tool to remove the wrapping film. -
Page 17: Pipe Fittings
Table 2.3 Unit: mm PIPE ΦD0(OD) ΦD1(ID) ΦD2(ID) Gas pipe 25.4 25.4 25.4 8-12HP Liquid pipe 12.7 12.7 12.7 Gas pipe 28.6 28.6 28.6 14-16HP Liquid pipe 15.9 15.9 15.9 Gas pipe 31.8 28.6 31.8 18-24HP Liquid pipe 19.1 15.9 19.1 Gas pipe 31.8... - Page 18 Table 3.2 Recommended outdoor unit combination Max Qty of indoor units...
- Page 19 Max Qty of indoor units...
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Page 20: Preparations Before Installation
4 PREPARATIONS BEFORE NOTE INSTALLATION This is a class A product. This product may cause radio interference in the home 4.1 Overview environment. The user may need to take the necessary measures if such a situation does This chapter mainly describes the precautions and arise. - Page 21 Make note of the following when installing the unit in areas affected by cold weather or snow: Airflow Avoid directly exposing the air outlet or air inlet to the wind. The local maximum snowfall should be taken into Airflow consideration when deciding the foundation height of ODU.
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Page 22: Selecting And Preparing The Refrigerant Piping
Airflow Airflow Airflow Airflow Figure 4.4 Countermeasures when exceeding the max concentration 4.2.3 Safety measures to prevent a. Please install a mechanical ventilation device. refrigerant leaks b. If it is impossible to change air frequently, please install a leak detection alarm device connected with the Safety measures to prevent refrigerant leak mechanical ventilation device. - Page 23 4.3.2 Allowable length and height difference for refrigerant piping Refer to the following table and figure (for reference only) to determine the appropriate size. NOTE The equivalent length of each elbow and U-shape branch joint is 0.5m, and the equivalent length of each branch header is 1m.
- Page 24 Table 4.3 Summary of permitted refrigerant piping lengths and level differences Category Permitted values Piping Total piping length ≤1100m L1+∑(L2 to 10)x2+∑(a to k) Piping between the farthest ≤220m Actual length L1+L6+L7+L8+L9+L10+k indoor unit and the first Equivalent length outdoor branch joint ≤260m (Refer to Requirement 1) Piping lengths...
- Page 25 4.3.3 Piping diameter Table 4.8 1) Select the diameter of the main piping Gas side Liquid side Total capacity of Capacity of indoor unit indoor units (mm) (mm) Branch joint ▪ The main pipe (L1) and first indoor branch joint (A) A (×100W) should be sized according to Table 4.6 and Table 4.7.
- Page 26 If the required pipe size is not available, you can use Table 4.11 For V8 combinable series other diameters by considering the following factors: ▪ If the standard size is not available in local market, a pipe that is one size larger should be Total parallel Outdoor Outdoor connection...
- Page 27 For V8 combinable series N1(160) N3(160) N4(160) N5(160) N2(160) Pipe Branch Indoor Unit N6(160) N7(160) N8(140) N9(112) N10(56) N11(28) Figure 4.9 Select indoor main pipes and indoor branch B to J Select the indoor auxiliary connection pipe a to k The indoor units (N4 and N5) downstream of indoor The capacity of indoor units N1 to N9 is larger than branch E have a total capacity of 16*2=32kW.
- Page 28 For V8i individual series N1(100) N3(71) N4(71) N5(71) N2(100) Pipe Branch Indoor Unit N6(112) N8(100) N9(71) N7(112) N10(56) N11(28) Figure 4.10 Select indoor main pipes and indoor branch B to J Select the indoor auxiliary connection pipe a to k The indoor units (N4 and N5) downstream of indoor The capacity of indoor units N1 to N9 is larger than branch E have a total capacity of 7.1*2= 14.2kW.
- Page 29 If the piping length between outdoor units is 2m or more, the oil trap for the gas pipe should be provided so that accumulation of refrigerant oil does not occur. Less than 2m √ Correct Indoor unit side <2m <2m 2m or more Oil trap Oil trap...
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Page 30: Selecting And Preparing The Electrical Wiring
4.4 Selecting and Preparing Table 4.13 the Electrical Wiring Nominal cross-sectional area (mm Rated current of appliance 4.4.1 Safety device requirements Cable for fixed Flexible cords wiring ≤ 3 1 to 2.5 0.5 and 0.75 1. Select wire diameters (minimum value) >... -
Page 31: Outdoor Unit Installation
Hold the panel with one hand and lift the handle 5 OUTDOOR UNIT with the other hand to disengage the left and right INSTALLATION hooks from the holes of the side plate in turn. 5.1 Overview This chapter includes the following information: Open the unit Outdoor unit installation Welding refrigerant piping... - Page 32 8-16HP 18-32HP Figure 5.6 18-32HP Figure 5.7 The heat radiator piping of the refrigerant is Figure 5.5 connected to the system. (1) Main control board (2) Communication terminal block NOTE (3) Terminal block (4) AC filter board (5) Compressor & Fan drive board A The cover is clamped to the electric control box, (6) Compressor &...
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Page 33: Installing The Outdoor Unit
5.3.2 Outdoor unit installation space 5.3 Installing the Outdoor Unit Make sure there is sufficient space around the unit for 5.3.1 Preparing the structure for installation maintenance work, and the minimum space for air inlet and air outlet is reserved (see below to select a feasible The base of the outdoor unit must use a solid method). - Page 34 Installation with walls in three directions CAUTION The arrow ▼ indicates the front of the unit in the above figures. A≥1000mm, 500mm≥B≥100mm. The dimensions in the above figures provide sufficient space operation maintenance under normal operating conditions (refrigeration mode at an outdoor temperature of 35°C).
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Page 35: Pipe Welding
5.4.2 Connect refrigerant piping 5.3.3 Vibration reduction of outdoor unit Before the refrigerant piping is connected, make sure The ODU shall be firmly fixed, and a thick rubber plate the indoor units and outdoor units are installed or corrugated shock-absorbing rubber cushion with a properly. - Page 36 When there are multiple outdoor units, the branch joints 5.4.5 Connecting VRF piping assembly must not be higher than the refrigerant piping as shown below: CAUTION Incorrect installation will cause the unit to malfunction The branch joints should be as level as possible, and the angular error must not exceed 10°.
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Page 37: Fushing Pipes
Fastening torque Table 5.2 Maintenance access and Tightening torque / N.m its valve lid (turn clockwise to close) Stop valve Stop valve lid size (mm) Axis Valve body Stop valve connection Φ12.7 9-30 tube Φ15.9 12-30 Φ19.1 Figure 5.23 Φ22.2 16-30 Φ25.4 Sealing component... -
Page 38: Gas Tightness Test
8.Flush the other openings in the same manner, working 3.If there are no small leakages, charge the piping with in sequence from indoor unit A towards the outdoor nitrogen at 4.2 MPa and leave for at least 24 hours to units. -
Page 39: Vacuum Drying
Pressure gauge 5.7 Vacuum Drying Yellow hose Slave unit Master unit Slave unit Vacuum drying should be performed to remove moisture and non-condensable gases from the system. Removing moisture prevents ice formation and oxidization of copper piping or other internal components. The Vacuum pump presence of ice particles in the system will cause Field piping... -
Page 40: Refrigerant Charging
5.8.3 Protective measures for the pipeline Additional refrigerant charge R1 (kg) = (T1@Φ6.35) × 0.022 + (T2@Φ9.52) × 0.057 + (T3@Φ12.7) × 0.110 + The refrigerant pipe will swing, expand or shrink during (T4@Φ15.9) × 0.170 + (T5@Φ19.1) × 0.260 + (T6@Φ operations. -
Page 41: Electrical Wiring
Table 5.6 8. When the amount charged reaches R (kg), close the three valves. If the amount charged has not reached R Maximum additional Maximum additional (kg) but no additional refrigerant can be charged, refrigerant charge refrigerant charge close the three valves on the pressure gauge, run the quantity (kg) quantity (kg) outdoor units in cooling mode, and then open the... - Page 42 NOTE ▪ If the power supply lacks an N phase or there is an error in the N phase, the device will malfunction. ▪ Some power equipment may have an inverted phase or intermittent phase (such as a generator). For this type of power source, a reverse-phase protection circuit should be installed locally in the unit, as operating in the inverted phase may damage the unit.
- Page 43 Power supply 5.10.3 Connecting the power cord NOTE Do not connect the power supply to the communication terminal block. Otherwise, the whole system may fail. You must first connect the earth line (note that you should use only the yellow-green wire to connect to the earth, and you must turn off the power supply when you are connecting the earth line) before you connect...
- Page 44 6. Confirm again that the power phase sequence is CAUTION correct and properly restore the protecting cover of the power cable. During installation, the earth line shall be longer than the current carrying conductor to ensure that when the fixing device is loose, Plastic board open the earth line is still not stressed and can be reliably grounded.
- Page 45 5.10.4 Connecting the communication wiring WARNING Do not connect the communication line when the power is on. Connect the shielding nets at both ends of the shielded wire to the sheet metal “ ” of the electronic control box. Do not connect the power cable to the terminal of the communication line, otherwise, the motherboard will be damaged. It is forbidden to reverse the connection of the two communication ports (to up IDU) and (to down IDU) of the repeater.
- Page 46 Table 5.8 Communication mode Optional communication mode Communication protocol IDU and ODU type between IDU and ODU V8 communication protocol RS-485 (P Q) communication All IDUs and ODUs are V8 series At least one IDU or ODU is not V8 series Non-V8 communication protocol RS-485 (P Q E) communication Table 5.9 Communication wiring material...
- Page 47 RS-485 (P Q E) communication wiring configuration L1+La+Ln≤1200m. Communication wiring 3*0.75mm Communication wire Power wire Breaker Distribution box Distribution box Master ODU 1# IDU (n-1)# IDU n# IDU ··· 2-(n-2)# IDU Resister Figure 5.46 CAUTION Main control board After the last indoor unit, the communication wiring should not route back to the outdoor unit as this will form a closed loop.
- Page 48 XYE, H1H2 communication wiring For V8 combinable series Centralized controller Slave ODU Master ODU X Y E Refrigerant system 1# 3-(n-2)# IDU IDU 1# IDU 2# IDU (n-1)# IDU n# Resister Slave ODU Slave ODU Master ODU X Y E Refrigerant system 2# 3-(n-2)# IDU IDU 1#...
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Page 49: Configuration
6 CONFIGURATION 6.2.3 Menu mode 6.1 Overview Only master unit has the full menu functions, slave units only have error code checking and cleaning functions. This chapter describes how the system configuration can 1. Press and hold the SW5 “MENU” button for 5 seconds be implemented once the installation is complete and to enter menu mode, and the digital display displays “n1”. - Page 50 Table 6.3 First level Second level Specified menu Description Default menu menu mode Query history error Cleaning history error Query Indoor unit's address Query Power OFF Indoor unit's address Driver's version (compressor and fan displayed in turn) Accumulated running time of compressor Shield C26 and C28 error in 3 hours Cooling Test Heating Test...
- Page 51 First level Second level Specified menu Description Default menu menu mode Power limitation mode, Maximum current =MCA * setting value √ Meta function unavailable √ Meta function available Celsius unit √ Fahrenheit unit Anti-auto snow-blowing mode √ Auto snow-blowing mode 1 Auto snow-blowing mode 2 Auto dust-clean function unavailable √...
- Page 52 First level Second level Specified menu Description Default menu menu mode Backup operation time setting(5 days) Backup operation time setting(6 days) Backup operation time setting(7 days) √ Low noise defrosting mode unavailable √ Low noise defrosting mode available Rotation function unavailable Compressor rotation function available Outdoor unit rotation function available √...
- Page 53 6.2.4 UP / DOWN system check button Before pressing the UP or DOWN button, allow the system to operate steadily for more than an hour. Every time you press the UP or DOWN button, the parameters listed in the following table will be displayed in sequence Table 6.4 DISP.
- Page 54 DISP. CONTENT DISCRIPTION [0] OFF [1] C1: Condenser. Running [2] D1: Condenser. Not running Heat exchanger status [3] D2: Reserved [4] E1: Evaporator. Running [5] F1: Reserved [6] F2: Evaporator. Not running [0] Not in special mode [1] Oil return [2] Defrost Special mode [3] Startup...
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Page 55: Commissioning
7 COMMISSIONING 7.3 Checklist Before Test Run 7.1 Overview Once this unit is installed, check the following items first. After all the following checks have been completed, you After installation, and once the field settings have been must shut down the unit. This is the only way to start the defined, the installation personnel must verify the unit again. -
Page 56: About Test Run
7.4 About Test Run If the system is all V8 IDUs, and the IDUs and ODUs are connected by PQ communication, please select V8 The following procedures describe the test run of the protocol RS-485 (P Q) communication, and set the 4th whole system. - Page 57 commissioning flow chart The system is powered Master unit on and display “-.-.-.-.” Long press the “DOWN” and “UP” buttons simultaneously for 5s on the master ODU to enter the commissioning Set the number of The 3rd and 4th digits represent the IDUs, displays "01 01"...
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Page 58: Rectifications After Test Run Is Completed With Exceptions
7.6 Rectifications after Test Run is 5. Once the maintenance is completed, remember to Completed with Exceptions reconnect the plug to the terminal; otherwise, a fault will be reported for the main control board. The test run is considered complete when there is no 6. -
Page 59: Component Layout And Refrigerant Circuits
9.2 Component Layout and Refrigerant Circuits 8-16HP EEVA E S C T7C1 EEVC INV1 Heat SV8A Legend Part name Compressor Oil separator High pressure switch Check value 4-way valve（ST1） High pressure sensor Microchannel heat exchanger Electronic expansion valve (EEVA/EEVB) Stop valve (gas side) Stop valve (liquid side) Electronic expansion valve (EEVC) Electronic expansion valve (Optional... - Page 60 18-24HP EEVA E S C T7C1 T7C2 EEVC INV1 INV2 Heat SV8B SV8A Heat Legend Part name Compressor Oil separator High pressure switch Check value 4-way valve(ST1) High pressure sensor Microchannel heat exchanger Electronic expansion valve (EEVA/EEVB) Stop valve (gas side) Stop valve (liquid side) Electronic expansion valve (EEVC) Electronic expansion valve (Optional...
- Page 61 26-32HP EEVA E S C T7C1 T7C2 EEVC INV1 INV2 Heat SV8A SV8B Heat Legend Parts name Compressor Oil separator High pressure switch Check value 4-way valve (ST1) High pressure sensor Microchannel heat exchanger Electronic expansion valve (EEVA/EEVB) Stop valve (gas side) Stop valve (liquid side) Electronic expansion valve (EEVC) Electronic expansion valve (Optional...
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Page 62: Outdoor Unit Ducting
Option A: Transverse ducting 9.3 Outdoor Unit Ducting Support Radius D The following principles shall be followed when installing the air guide device: Radius E Before installing outdoor unit ducting, be sure to remove the unit’s steel mesh cover; otherwise, airflow will be adversely affected. -
Page 63: Fan Performance
9.4 Fan Performance 8-12HP unit fan performance 18-24HP unit fan performance 80Pa 80Pa 60Pa 60Pa 40Pa 40Pa 20Pa 20Pa 22000(rated) 13500(rated) 21400 21600 21800 22000 22200 22400 13100 13300 13500 13700 13900 Air flow (m³/h) Air flow (m³/h) 26-32HP unit fan performance 14-16HP unit fan performance 80Pa 80Pa... - Page 64 C/ ROSSELLÓ, 430-432 08025 BARCELONA ESPAÑA / SPAIN (+34) 93 446 27 80 SAT: (+34) 93 652 53 57 www.mundoclima.com...
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