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Summary of Contents for mundoclima MVD V8
- Page 1 High Static Pressure Duct Installation and owner's manual CL23731 ~ CL23737 www.mundoclima.com...
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Page 3: Table Of Contents
Contents About the Documentation About This Document / 1 Safety Instructions / Safety Warning Safety Precautions / 3 Electric Safety Requirements / About the Refrigerant / Operation Operation Precautions / Optimum Operation / 9 Symptoms That Are Not Faults / 11 Display Box (Optional) / Disposal / 13 Installation... -
Page 4: About The Documentation
About the Documentation About This Document Note Make sure that the user has the printed documentation and ask him/her to keep it for future reference. Target audience Authorised installers + end users Note This appliance is intended to be used by expert or trained users in shops, in light industry, and on farms, or for commercial and household use by lay persons. -
Page 5: Safety Instructions
Safety Instructions Please thoroughly read and ensure that you fully understand the safety precautions (including the signs and symbols) in this manual, and follow relevant instructions during use to prevent damage to health or property. Safety Signs Indicates a hazard with a high level of risk which, if not avoided, will result in death or Danger serious injury. -
Page 6: Safety Warning
Safety Warning Warning contents Ensure Proper Professional Only Earthing Prohibition signs No Laying No Strong Currents No Open Flame; No Acid or Inflammable Thing Fire, Open Ignition Alkali Materials Source and Smoking Prohibited Safety Precautions Danger In the event of refrigerant leakage, smoking and open flames are prohibited. Disconnect the main power switch immediately, open windows to allow ventilation, keep away from the leakage point, and contact your local dealer or technical support to request a professional repair. -
Page 7: Electric Safety Requirements
Caution This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. -
Page 8: About The Refrigerant
About the Refrigerant Warning The following applies to R32 refrigerant systems. Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system. - Page 9 During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
- Page 10 i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.
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Page 11: Operation
Operation Operation Precautions Warning If the unit will be not used for a long time, disconnect the main power switch. Otherwise, an accident may occur. The installation height of the air conditioner shall be at least 2.5m above the ground to avoid the following risks: 1. -
Page 12: Optimum Operation
Disposal: Do not dispose of this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being. - Page 13 Caution The downward direction of the louvers of the outlet grille during cooling operation may cause condensation on the air outlet and guide louvers surface. In Heating Mode To improve the heating effect in the lower parts of a room, adjust the louvers of air outlet grille downwards. Operating Range Use the unit in the following temperature and humidity ranges for safe and effective operation.
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Page 14: Symptoms That Are Not Faults
Symptoms That Are Not Faults Normal Protection of the Air Conditioner During operation, the following phenomena are normal and do not require maintenance. When the power switch is on, the air conditioner starts 3-5 minutes after it is turned ON again Protection in case it was turned off just before. - Page 15 "Self-cleaning" sound of icing During self-cleaning, there may be a slight clicking sound from the melting thin ice about 10 minutes. Noise of Indoor unit ① A continuous low "hissing" sound is heard when the system is in "Auto", "Cool", "Dry", and "Heat"...
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Page 16: Disposal
Display Box (Optional) Display functions: ① In Standby mode, the main interface displays “---”. ② When starting up in Cooling or Heating mode, the main interface displays the set temperature. In Fan mode, the main interface displays the indoor temperature. In Dry mode, the main interface displays the set temperature, and when the humidity* is set, the set humidity value is displayed on the wired controller. -
Page 17: Installation
Installation Carefully read this manual before installing the indoor unit. Installation Precautions Qualification and Safety Regulation Requirements Warning Please carry out the installation according to local standards. Ask your local dealer or professionals to install the product. This unit must be installed by professional technicians with relevant specialized knowledge. Users MAY NOT install the unit themselves;... - Page 18 Before and after installation, exposing the unit to water or moisture will cause electrical short circuit. Do not store the unit in a humid basement or expose it to rain or water. Make sure the installation base and lifting are robust and reliable; Insecure installation of the base may cause the air conditioner to fall, leading to an accident.
- Page 19 Precautions for Carrying and Lifting the Air Conditioner Before carrying the air conditioner, determine the route that will be used to move it to the installation site. Do not unseal the air conditioner until it is moved to the installation site. When unpacking and moving the air conditioner, must hold the hanger seat and do not apply force to other parts, especially the refrigerant piping, drain pipe and plastic accessories, so as to avoid damaging the air conditioner and causing personal injury.
- Page 20 Keep the air-conditioning return air away from direct exposure to the sun in the room. The indoor unit should not be lifted in the places like load-bearing beams and columns that affect the structural safety of the house. The wired controller and the indoor unit should be in the same installation space; otherwise, the sampling point setting of the wired controller needs to be changed.
- Page 21 Layout Installation layout 14 15 *Air outlet grille *Air outlet duct *Soft flexible duct Liquid pipe Drain pipes for models Gas pipe without a water pump Drain pipes for models Display box (optional) *Connection wires with a water pump Wired controller (optional) Remote controller (optional) Access hole *power supply cable and earth wires...
- Page 22 Product Dimensions (Unit: mm) Capacity (kW) 5/8-18 UNF 20.0≤kW≤22.4 3/4-16 UNF 22.4＜kW≤33.5 Appearance and dimensions of the air inlets, piping, drain pipes, power cable hole and communication wire hole: Φ30 (inner diameter) Matching PVC pipe (outer Φ3 (gas side, inner diameter Φ32) diameter) Connection...
- Page 23 Capacity (kW) 3/4-16 UNF 33.5≤kW≤40.0 7/8-14 UNF 40.0＜kW≤56.0 Appearance and dimensions of the air inlets, piping, drain pipes, power cable hole and communication wire hole: Φ30 (inner diameter) Matching PVC pipe (outer diameter Φ32) 2×Φ22 Φ3 (gas side, inner diameter) Connection process pipe Φ28...
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Page 24: Installation Materials
Installation Materials Accessories List of accessories Installation and Operation Flare nut X 1 Drain pipe X 1 Cable tie X 4 Thermal insulation pipe X 2 Manual X 1 (Make sure to hand it over For use in the installation of Unavailable for units with a To tighten the drain hose tightly Used for insulation and... - Page 25 Locally Purchased Accessories Connecting pipe (Unit: mm) Piping Liquid side Gas side Capacity(kW) 20.0≤kW≤22.4 Φ9.52×0.7 Φ19.1×0.75 22.4＜kW≤28.0 Φ12.7×0.75 Φ22.2×1.0 28.0＜kW≤40.0 Φ12.7×0.75 Φ25.4×1.2 40.0＜kW≤56.0 Φ15.9×0.75 Φ28.6×1.2 For connection of the indoor unit refrigerant system, it is recommended Remarks to use a soft connecting pipe (T2M), with the length selected according to the actual situation.
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Page 26: Preparations Before Installation
Preparations Before Installation Unpacking Check Before installation, check whether the packing materials are in good ① The red condition, whether the accessories that come with the product are dot bulges Sealing complete, whether the air conditioner is intact, whether the surfaces of the heat exchanger and other parts have become worn, and whether there are oil stains on the stop valve of the unit. - Page 27 Bottom view (Unit: mm) Wall ≥500mm Maintenance space Access hole Electric control assembly ≥600mm Maintenance space Side view Air outlet Access hole ≥600 ≥600 Space for removing Space for filter and inlet Air inlet the front panel duct maintenance Caution The distance between the indoor unit and the roof (B) shall be greater than 50mm to install the air duct.
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Page 28: Indoor Unit Installation
Indoor Unit Installation Warning Install the air conditioner in a location with sufficient strength to support the weight of the unit. Take reinforcement measures when necessary. The unit may fall and cause personal injury if the location is not strong enough. Unstable installation may cause the unit to fall and cause an accident. - Page 29 Installation of Lifting Bolts Refer to the following figure on installation using the lifting bolts. With steel frame Sites with concrete slabs Use embedded bolts and pull bolts Directly set and use an angle iron for support. Lifting bolts Lifting bolts Angle iron for support Indoor Unit Installation...
- Page 30 Use a transparent hose to observe water level (principle of communicating vessels) and verify the tilt angle of the unit in the length direction. It shall be installed level or at an angle within 1° towards the drainage side. (For units without a drain pump, ensure a slope of 1/100 towards the drainage side. Do not tilt towards the non-drainage side.) Otherwise, water cannot drain smoothly and leaks can easily occur.
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Page 31: Refrigerant Connecting Piping Installation
Refrigerant Connecting Piping Installation When connect different series of outdoor units, the length and level differences of piping connections. Refer to the Installation and Operation Manual attached with the outdoor unit. Caution During the installation of the connecting pipes, do not allow air, dust, and other debris to penetrate the piping system, and make sure the interior of the pipes is dry. - Page 32 Pipe Connection Steps Measure the required length of the connecting pipe. Make the connecting pipe using the following method (see "Pipe Connection" for details). Apply refrigerant oil to the inner and outer surface of Connect the indoor unit first, then connect the outdoor unit. the pipe socket.
- Page 33 Caution Wet cloth When it is necessary to fill the piping with nitrogen during welding, the pressure must be kept at 0.02MPa using a pressure relief valve. Do not use flux when soldering the piping. Use a phosphor copper solder that does not require flux.
- Page 34 Handle Yoke Cone Connecting pipe Clamp handle Red arrow mark Nut fastening Align the connecting piping, firstly tighten most of the thread of the connecting nut by hand, and then use a wrench to tighten the last 1-2 turns of the thread as shown in the figure. The welding is done on site, and the bell mouth cannot be used indoors.(For IEC/EN 60335-2-40 except IEC 60335-2-40: 2018) The protective nut is a one-time part, it can not be reused.
- Page 35 Caution Depending on the installation conditions, excessive torque will damage the flared mouth, and too small torque cannot tighten the nut, which will cause refrigerant leakage. Please refer to the above table to determine the appropriate tightening torque. Refrigerant Piping Fixing Angle iron brackets or round steel hangers should be used for fixing.
- Page 36 To check for leaks: Pressure leak test ① Test for leaks by applying a bubble test solution to all piping connections. ② Discharge all nitrogen gas. ③ Break the vacuum by pressurising with nitrogen gas to a minimum gauge pressure of 0.2 MPa (2 bar). Never set the gauge pressure higher than the maximum operation pressure of the unit, i.e.
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Page 37: Drain Pipe Installation
Drain Pipe Installation Caution Before installation of the condensate pipeline, determine its direction and elevation to avoid intersection with other pipelines to ensure that the slope is straight. The highest point of the drain pipe should be equipped with a went port to ensure the smooth drainage of condensate water, and the vent port must face downwards to prevent dirt from entering the pipe. - Page 38 Thermal insulation pipe PVC water drain pipe (outer diameter: 32mm) The thermal insulation pipe is closely attached to the unit. Drainage outlet for water pump Drain hose Thermal insulation pipe There is a large gap PVC water drain pipe between the thermal insulation pipe and the (outer diameter: 32mm) Teflon...
- Page 39 The end of the drain pipe must be more than 50mm above the ground or from the base of the water drainage slot. In addition, do not submerge it in water. To drain the condensed water directly into a ditch, the water drain pipe must bend upwards to form a U-shaped water plug to stop odors from entering the room via the water drain pipe.
- Page 40 How to drain water without the drain pump: (Unit: mm) 800~1000 Slope > 1/100 Method to connect the drain pipe for a single unit Air outlet ≥50 ≥50 Slope > 1/100 Plug Drain pipes from multiple units are connected to the main drain pipe to be drained through the sewage pipe.
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Page 41: Air Duct Installation
Water injection amount: (Unit: ml) Indoor unit capacity (kW) Water injection amount 20.0≤kW≤33.5 4000 33.5＜kW≤56.0 5000 Water injection Air Duct Installation Please use locally purchased air ducts and soft air ducts (Use environmentally friendly, odorless materials, otherwise the air conditioner may generate odor when it runs). Install the flange at the air return side, and use aluminum foil tape to seal the connection part between the flange and the air duct to avoid air leakage. - Page 42 The air outlet duct can be installed in two ways: Method 1: Connect an air duct to each air outlet. Air outlet Air inlet Air outlet Method 2: Remove the flange at the air outlet and connect the air duct as a whole (refer to the product dimensions in this Manual for the dimensions of the air duct installation hole).
- Page 43 Connection between air vent and air duct wrong Air vent size and position wrong Connection between air Air vent vent and air size wrong duct wrong Air outlet Air outlet Air inlet not opened Air vent position wrong Air inlet Air vent size and position correct Air vent size correct...
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Page 44: Electrical Connection
Electrical Connection Danger The power supply must be cut off before any electrical work is carried out. Do not conduct electrical work when the power is on; otherwise, it may cause serious personal injury. The air conditioning unit must be earthed reliably and must meet the requirements of the local country/region. - Page 45 Electrical Characteristics Electric specifications of the indoor unit Capacity Frequency Voltage IFM power (kW) (Hz) input(W) （A） （A） 8.19 20.0 6.55 8.19 22.4 6.55 8.19 25.2 6.55 8.19 28.0 6.55 220~240 8.31 33.5 6.65 12.98 2300 40.0 10.38 12.98 2300 45.0 10.38 15.49...
- Page 46 Caution All weak point connection points meet SELV, such as X1, X2, P, Q, E, M1, M2, CN18, CN55 etc. Wiring ② Open the indoor unit's electric control box cover. ① ① ① Remove the four screws at the positions shown in the figure;...
- Page 47 Power supply cable connection ① Connection between the power supply cable and power supply terminal Electric control box sheet The power supply terminal of the indoor unit is fixed on the metal part terminal block, The live and neutral wires are connected according to the terminal block logos "L"...
- Page 48 ② Power supply cable system connection Power supply cable system connection depends on the forms of communication between the indoor unit and outdoor unit. For the HyperLink (M1M2) communication form, indoor units are allowed to have independent power supplies. For other communication forms, indoor units should be provided with uniform power supplies. Indoor units are provided with independent power supplies*, which are wired as follows: For HyperLink (M1M2) communication with independent power supply: Master...
- Page 49 Indoor units are provided with unified power supply*, which are wired as follows: 1. HyperLink (M1M2) communication with the unified power supply: Power supply for indoor unit L1+La+Ln ≤ 2000m Wire diameter: 0.75mm2 Communication wires × × Circuit breaker Power supply cable Distribution box Distribution box Master...
- Page 50 Caution When the indoor units are provided with a unified power supply, if the indoor units in the same refrigerant system are V8 indoor units, then indoor units and outdoor unit can communicate either via HyperLink (M1M2) with a unified power supply, or via P/Q. If some of the indoor units in the same refrigerant system are non-V8 series, then indoor units and outdoor unit can only communicate via P/Q/E communication.
- Page 51 ② Table of selection of communication wiring diameter One controller One-to-more to one indoor unit (centralized Function Indoor unit and outdoor unit communication (Two controllers controller) to one indoor unit) Communication Communication HyperLink (M1M2) HyperLink (M1M2) P/Q/E P/Q communication communication communication communication X1X2...
- Page 52 ③ Indoor unit and outdoor unit communication HyperLink (M1M2) communication (with independent power supply) Single unit: HyperLink (M1M2) communication is a new type of indoor unit and outdoor unit communication technology. When the indoor units are provided with independent power supplies, use 2×1.5mm2 communication cables.
- Page 53 Caution If the total length is less than or equal to 200m and the total number of indoor units is less than or equals to 10 sets, the electronic expansion valve in indoor unit can be powered and controlled by the master outdoor unit.
- Page 54 System: The HyperLink (M1M2) communication wiring with a unified power supply between indoor unit and outdoor unit can reach a length of up to 2000 meters, supporting any topology connection. The following figure shows a serial connection: Power supply for indoor unit Communication wires ×...
- Page 55 System: The maximum total length of the P/Q communication cable of the Indoor unit and outdoor unit can be up to 1200m, and can be connected in serial, as shown in the figure below: Power supply for indoor unit × × Communication wires Circuit breaker Power supply cable...
- Page 56 Caution When P/Q or P/Q/E communication is used, the indoor units need to be powered uniformly. Either P/Q, P/Q/E communication or HyperLink (M1M2) communication can be selected. If it is required for indoor units to have independent power supplies, then HyperLink (M1M2) communication must be selected.
- Page 57 ⑤ D1D2 communication wiring connection (limited to outdoor unit and system configuration) Achieving one-to-multiple and two-to-multiple functions of the indoor unit wired controller through D1D2 communication (a maximum of 16 sets) D1D2 communication is 485 communication. The one-to-more and two-to-more functions of the indoor unit wired controller can be achieved through D1D2 communication, as shown in the figure below: Indoor unit 2# Indoor unit 16#...
- Page 58 External board connection (limited to outdoor unit and system configuration) The external board is a connection module outside the main control board, including a display box, Switch module, 1# Expansion board and 2# Expansion board. ① Connection of Display Box The display box is connected to the main control board through a 4-core cable, and is connected to the "CN30"...
- Page 59 Reclose the electric control box cover Straighten out the connecting wires and lay them flat, and close the electric control box cover again. Caution Do not cover the electric control box during power-on. When covering the electric control box, arrange the cables carefully and do not clip the connecting wires on the electric control box cover.
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Page 60: Error Codes
Error Codes Error Codes and Definitions In the following circumstances (warning failures excluded), please stop the air conditioner immediately, cut off the power switch and contact the local air conditioner customer service center. The error code is displayed on the display box and the wired controller display. Error Error code Digital display Emergency stop... - Page 61 Error Error code Digital display Abnormal communication between the indoor unit and outdoor unit Abnormal communication between the indoor unit main control board and fan drive board Abnormal communication between the indoor unit and wired controller Abnormal communication between the indoor unit and Wi-Fi Kit Abnormal communication between the indoor unit main control board and display board Abnormal communication between the AHU Kit slave unit and master unit Number of AHU Kits is not the same as the set number...
- Page 62 Error Error code Digital display The built-in room temperature sensor of the wired controller short-circuits or cuts off The wireless temperature sensor short-circuits or cuts off The external room temperature sensor short-circuits or cuts off Tcp (pre-cooled fresh air temperature sensor) short-circuits or cuts off Tph (pre-heated fresh air temperature sensor) short-circuits or cuts off TA (outlet air temperature sensor) short-circuits or cuts off Outlet air humidity sensor fault...
- Page 63 Error Error code Digital display Low bus voltage fault High bus voltage fault Phase current sample bias error Motor and indoor unit are unmatched IPM and indoor unit are unmatched Motor startup failure Motor blocking protection Speed control mode setting error Phase lack protection of motor Operating Status Codes and Definitions (Non-error) Definition...
- Page 64 Spot Check Description Use the bi-directional communication wired controller (for example, WDC3-86S) to activate the spot check function in the following steps: Check No. ① On the main page, hold " " and "▲" for 2s to Spot check enter the query page. The wired controller parameters displays "CC".
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Page 65: Settings
Settings ESP Setting Use the bi-directional communication wired controller (for example, WDC3-86S) to set the unit external static pressure, which can be divided into the following two situations: Constant air flow mode Indoor units that are equipped with a constant air flow function are set to the constant air flow mode when they leave the factory. - Page 66 Air Pressure Curve Constant air flow - self-adaptive 20.0 kW / 22.4kW / 25.2kW / 28.0 kW 33.5 kW 2000 2500 3000 3500 4000 4500 5000 2000 2500 3000 3500 4000 4500 5000 Air flow rate (m Air flow rate (m 40.0 kW / 45.0 kW 56.0 kW 3500...
- Page 67 Constant speed mode The bi-directional communication wired controller must be used to set the unit's external static pressure parameters to overcome the air outlet resistance. The steps are as follows: ① On the main page, hold " " and " "...
- Page 68 Air Pressure Curve Constant speed 20.0kW / 22.4kW / 25.2kW / 28.0kW 33.5kW Setting *1: 400Pa MAX Setting *1: 400Pa MAX Setting *2: 300Pa Setting *2: 300Pa Setting *3: 200Pa DEFAULT Setting *3: 200Pa DEFAULT Setting *4: 100Pa Setting *4: 100Pa Setting *5: 50Pa Setting *5: 50Pa Fan speed 1-*4...
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Page 69: Test Run
Caution Parameters can be set while the unit is powered on or powered off. On the parameter setting page, the wired controller does not respond to a remote signal, and does not respond to the app remote control signal. When it is in the parameter settings page, the mode, fan speed, and switch buttons are invalid. Please refer to the remote controller manual for the setting parameters of the remote controller. - Page 70 Check List To ensure a comfortable indoor environment, please run down through the list to check whether the installation of the air conditioner meets the requirements. Insert a "×" for Fail and a "√" for Pass. Check Result Check Item Check Criteria (Pass/Fail) The air conditioner does not fall or...
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Page 71: Safety Warning
Maintenance and Service Safety Warning Warning For safety reasons, always turn off the air conditioner and turn off the power before cleaning the air conditioner. Do not disassemble or repair the air conditioner by yourself; otherwise, it may cause fire or other hazards. Only professional service personnel can carry out the maintenance. - Page 72 Procedure Remove the air inlet grille. For duct type air conditioners, open the air inlet grille as shown in the figure. Remove the filter. Remove the filter (if any) at the air inlet of the air conditioner (the filter is optional). Note Only authorised installer or service agent can change and disassemble the filter.
- Page 73 Reinstall the filter. Reinstall and close the air inlet grille by following steps 1 and 2 above in reverse. Cleaning Air Outlets and Exterior Panels Wipe the air outlet and panel with a dry cloth. If a stain is hard to remove, clean it with clean water or neutral detergent. Caution Do not use gasoline, benzene, volatile agents, decontamination powder or liquid insecticides.
- Page 74 Caution Before the air conditioner is idle for a long time, the internal components of the outdoor units should be checked and cleaned regularly. For more details, please contact the local air conditioner customer service center or special technical service department. Check the return air inlet and outlet of the outdoor unit and indoor unit after long periods of use to see if they are blocked;...
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Page 75: Maintenance Of Conventional Parts
Maintenance of Conventional Parts Maintenance of Fan The fan propeller housing inside the unit can be maintained by removing the top cover or the front panel. Method 1: Remove the top cover Remove the flange. Remove the top cover assembly. Top cover assembly Flange... - Page 76 Method 2: Remove the front panel Remove the flange. Remove the front panel. Front panel Flange Loosen the propeller housing screw. Remove the fan propeller housing.
- Page 77 Motor Maintenance For motor maintenance, remove the fan propeller housing first with one of the methods above. Follow the steps below to remove the motor. Loosen the motor screw. Remove the motor. Maintenance of the Drain Pump (for Units with Uumps), Temperature Sensor and Electronic Expansion Valve Remove the electric control box cover and Remove the pipe clamp board.
- Page 78 Maintenance of Electronic Control Board Remove the electric control box cover. Check the circuit, components and other problems or replace the main board. After replacing the main board, use the after-sale tool to scan the QR code on the electric control box, and reset the model and HP of the unit.
- Page 79 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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