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M thermal Mono

202005

Midea M

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Engineer

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Inverter module protection

Anti-freeze mode protection

High temperature protection of refrigerant outlet temp. of condenser

Water inlet temperature is higher than water outlet in heating mode

DC compressor inverter module fault

DC bus low voltage protection (from inverter module mostly when compressor running)

DC bus high voltage protection from DC driver

MCE fault

Zero speed protection

Phase sequence fault

Compressor frequency variation greater than 15Hz within 1 second protection

Actual compressor frequency differs from target frequency by more than 15Hz protection

Midea CAC Confidential

Содержание M thermal Mono Series

Страница 1: ...Engineering Data M thermal A Series Mono 18 30kW R32 Commercial Air Conditioners Midea CAC Confidential ...

Страница 2: ...M thermal Mono 201910 1 CONTENTS CONTENTS Part 1 General Information 3 Part 2 Engineering Data 17 Part 3 Installation and Field Settings 35 Midea CAC Confidential ...

Страница 3: ...M thermal Mono 2 201910 Midea M thermal Mono Engineering Data Book Midea CAC Confidential ...

Страница 4: ...no 202005 3 Part 1 General Information Part 1 General Information 1 M thermal Mono System 4 2 Unit Capacities 6 3 Nomenclature 6 4 System Design and Unit Selection 7 5 Typical Applications 9 Midea CAC Confidential ...

Страница 5: ...n for space heating space cooling and domestic hot water The outdoor heat pump system extracts heat from the outdoor air and transfers this heat through refrigerant piping to the plate heat exchanger in the hydronic system The heated water in the hydronic system circulates to low temperature heat emitters floor heating loops or low temperature radiators to provide space heating and to the domestic...

Страница 6: ...ps below the point at which the heat pump is able to provide sufficient capacity When the ambient temperature is below this equilibrium point as shown in Figure 1 1 2 the backup electric heater supplies the required additional heating capacity Best balance between initial investment and running costs results in lowest lifecycle cost Ideal for new construction Configuration 3 Heat pump with auxilia...

Страница 7: ...acity 18kW 22kW 26kW 30kW Model MHC V18W D2RN8 V22W D2RN8 V26W D2RN8 V30W D2RN8 Appearance 3 Nomenclature H 30 M C V W D2 R N8 Refrigerant N8 R32 Power Supply R 3 phase 380 415V 50Hz Compressor and fan motor types D2 All DC Unit category W Outdoor unit Capacity index The capacity in kW Inverter Mono Heat pump Midea Midea CAC Confidential ...

Страница 8: ... of the outdoor units for the following items Outdoor air temperature Outdoor humidity Water outlet temperature1 Altitude Anti freeze fluid Is corrected M thermal Mono unit capacity Required total heat load on outdoor units2 Yes No M thermal Mono system selection is complete Select a larger model or enable backup electric heater operation Notes 1 If the required water temperatures of the heat emit...

Страница 9: ...s important to take account of the following considerations Choose heat emitters that allow the heat pump system to operate at as low a hot water temperature as possible whilst still providing sufficient heating Make sure the correct weather dependency curve is selected to match the installation environment building structure climate as well as ender user s demands Connecting room thermostats fiel...

Страница 10: ...1 Manometer 6 Drain valve field supplied 1 2 Pressure relief valve 7 Fill valve field supplied 1 3 Expansion vessel 8 Balance tank field supplied 1 4 Plate heat exchanger 8 1 Air purge valve 1 5 Air purge valve 8 2 Drain valve 1 6 Flow switch 9 Expansion vessel field supplied 1 7 P_i Circulation pump inside the unit 10 P_o Outside circulation pump field supplied 2 Y shape filter 11 Collector Distr...

Страница 11: ... vessel field supplied 1 2 Pressure relief valve 10 P_o Outside circulation pump field supplied 1 3 Expansion vessel 11 Collector Distributor field supplied 1 4 Plate heat exchanger 12 Domestic hot water tank field supplied 1 5 Air purge valve 12 1 Air purge valve 1 6 Flow switch 12 2 Heat exchanger coil 1 7 P_i Circulation pump inside the unit 12 3 Booster heater 2 Y shape filter 13 T5 Temperatur...

Страница 12: ...nsion vessel 12 1 Air purge valve 1 4 Plate heat exchanger 12 2 Heat exchanger coil 1 5 Air purge valve 12 3 Booster heater 1 6 Flow switch 13 T5 Temperature sensor 1 7 P_i Circulation pump inside the unit 14 Hot water tap field supplied 2 Y shape filter 15 P_d Cycle hot water pump field supplied 3 Stop valve field supplied 16 One way valve field supplied 4 Wired controller 17 Bypass valve field s...

Страница 13: ...nger 12 Domestic hot water tank field supplied 1 5 Air purge valve 12 1 Air purge valve 1 6 Flow switch 12 2 Heat exchanger coil 1 7 P_i Circulation pump inside the unit 12 3 Booster heater 2 Y shape filter 13 T5 Temperature sensor 3 Stop valve field supplied 14 Hot water tap field supplied 4 Wired controller 15 P_d Cycle hot water pump field supplied 5 Stop valve field supplied 16 One way valve f...

Страница 14: ...d supplied 1 3 Expansion vessel 11 Collector Distributor field supplied 1 4 Plate heat exchanger 12 Domestic hot water tank field supplied 1 5 Air purge valve 12 1 Air purge valve 1 6 Flow switch 12 2 Heat exchanger coil 1 7 P_i Circulation pump inside the unit 12 3 Booster heater 2 Y shape filter 13 T5 Temperature sensor 3 Stop valve field supplied 14 Hot water tap field supplied 4 Wired controll...

Страница 15: ... Flow switch 12 2 Heat exchanger coil 1 7 P_i Circulation pump inside the unit 12 3 Booster heater 2 Y shape filter 13 T5 Temperature sensor 3 Stop valve field supplied 14 Hot water tap field supplied 4 Wired controller 15 P_d Cycle hot water pump field supplied 5 Stop valve field supplied 16 One way valve field supplied 6 Drain valve field supplied 17 Additional heat source field supplied 7 Fill ...

Страница 16: ...ion convenience Figure 1 5 7 Dual setpoint function application with two room thermostats Table 1 5 7 Dual setpoint function application with two room thermostats Legend 1 Outdoor unit 7 Fill valve field supplied 1 1 Manometer 8 Balance tank field supplied 1 2 Pressure relief valve 8 1 Air purge valve 1 3 Expansion vessel 8 2 Drain valve 1 4 Plate heat exchanger 9 Expansion vessel field supplied 1...

Страница 17: ... 1 5 8 Dual setpoint function application without thermostats Legend 1 Outdoor unit 8 Balance tank field supplied 1 1 Manometer 8 1 Air purge valve 1 2 Pressure relief valve 8 2 Drain valve 1 3 Expansion vessel 9 Expansion vessel field supplied 1 4 Plate heat exchanger 10 P_o Outside circulation pump field supplied 1 5 Air purge valve 11 Collector Distributor field supplied 1 6 Flow switch 12 Bypa...

Страница 18: ...Part 2 Engineering Data 1 Specifications 18 2 Dimensions and Center of Gravity 19 3 Piping Diagrams 20 4 Wiring Diagrams 21 5 Capacity Tables 22 6 Operating Limits 28 7 Hydronic Performance 29 8 Sound Levels 30 9 Accessories 33 Midea CAC Confidential ...

Страница 19: ...49 5 71 MOP MCA A 18 0 21 0 21 0 24 5 24 0 27 0 28 0 28 5 Compressor Type Twin rotary DC inverter Outdoor fan motor Type Brushless DC motor Water side heat exchanger Plate type Water pump Max pump head m 12 12 12 12 Refrigerant R32 Charged volume kg 5 0 Throttle type Electronic expansion valve Sound power level 8 dB 71 73 75 77 Unit dimension Packing dimension W H D mm 1129 1558 440 1220 1735 565 ...

Страница 20: ...M thermal Mono 202005 19 Part 2 Engineering Data 2 Dimensions and Center of Gravity Figure 2 2 1 MHC V18 22 26 30 W D2RN8 dimensions and center of gravity unit mm 304 670 425 670 Midea CAC Confidential ...

Страница 21: ...hanger refrigerant outlet temperature sensor T3 5 Water side heat exchanger refrigerant outlet gas pipe temperature sensor T2B 6 Water side heat exchanger refrigerant outlet liquid pipe temperature sensor T2 7 Water side heat exchanger water outlet temperature sensor Tw_out 8 Water side heat exchanger water inlet temperature sensor Tw_in 9 Final water outlet temperature sensor T1 10 Domestic hot w...

Страница 22: ...M thermal Mono 202005 21 Part 2 Engineering Data 4 Wiring Diagrams Figure 2 4 1 MHC V18 22 26 30 W D2RN8 wiring diagram Midea CAC Confidential ...

Страница 23: ...ng capacity W PI Power input W Notes 1 Peak heating capacity values do not take account of capacity drops caused by frost accumulation and during defrosting Table 2 5 2 MHC V18W D2RN8 heating capacity integrated values 1 Outdoor air temp LWT C 30 35 40 45 50 55 60 C DB HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP 25 0 8684 6028 1 44 7841 6518 1 20 20 0 11025 5663 1 95 9955...

Страница 24: ...ntegrated heating capacity values take account of capacity drops caused by frost accumulation and during defrosting Table 2 5 4 MHC V22W D2RN8 heating capacity integrated values 1 Outdoor air temp LWT C 30 35 40 45 50 55 60 C DB HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP 25 0 7995 5857 1 37 7374 6340 1 16 20 0 11062 5716 1 94 10223 6188 1 65 9383 6660 1 41 15 0 17158 717...

Страница 25: ...tes 1 Peak heating capacity values do not take account of capacity drops caused by frost accumulation and during defrosting Table 2 5 6 MHC V26W D2RN8 heating capacity integrated values 1 Outdoor air temp LWT C 30 35 40 45 50 55 60 C DB HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP 25 0 7307 5685 1 29 6906 6162 1 12 20 0 11099 5769 1 92 10490 6253 1 68 9881 6737 1 47 15 0 1...

Страница 26: ...rated heating capacity values take account of capacity drops caused by frost accumulation and during defrosting Table 2 5 8 MHC V30W D2RN8 heating capacity integrated values 1 Outdoor air temp LWT C 30 35 40 45 50 55 60 C DB HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP HC PI COP 25 0 7406 6210 1 19 7093 6800 1 04 20 0 11249 6302 1 79 10773 6901 1 56 10288 7500 1 37 15 0 19103 8078 2...

Страница 27: ...491 6117 4 33 26249 6675 3 93 24797 6818 3 64 21925 6599 3 32 25 27392 3839 7 14 24491 4032 6 07 24706 4625 5 34 23846 4885 4 88 23026 5184 4 44 20716 5179 4 00 20 25189 3389 7 43 23542 3609 6 52 21581 3677 5 87 21775 3998 5 45 21025 4352 4 83 18773 4429 4 24 15 21105 2718 7 76 20861 2960 7 05 19239 2957 6 51 19671 3200 6 15 19292 3442 5 60 17399 3437 5 06 10 17097 2102 8 13 15597 2034 7 67 16079 ...

Страница 28: ...5512 11169 3 18 31911 10593 3 01 25 40581 7121 5 70 35954 7244 4 96 36544 8253 4 43 35450 8692 4 08 33685 8912 3 78 30412 8762 3 47 20 35944 5916 6 08 32183 5904 5 45 30993 6223 4 98 30535 6544 4 67 30825 7350 4 19 25479 6850 3 72 15 30453 4670 6 52 27561 4554 6 05 26212 4612 5 68 26264 4837 5 43 25291 5020 5 04 22772 4920 4 63 10 27055 3834 7 06 24757 3635 6 81 25502 3859 6 61 25011 3869 6 46 244...

Страница 29: ...ow temperature Figure 2 6 3 Domestic hot water operating limits 5 12 25 35 50 60 25 30 43 10 Outdoor temperature Water flow temperature Notes Shaded areas indicate If IBH AHS setting is valid only IBH AHS turns on If IBH AHS setting is invalid only heat pump turns on Shaded areas indicate water flow temperature drop or rise interval Shaded areas indicates heat pump runs If the IBH or AHS setting i...

Страница 30: ...performance 1 Abbreviations ESP External static pressure Notes 1 I II and III indicate water pump speed I Low II Medium III High 0 10 20 30 40 50 60 70 80 90 100 110 120 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 ESP kPa Flow rate m3 h Available external static presurre VS Flow rate Ⅱ Ⅰ Ⅲ Midea CAC Confidential ...

Страница 31: ...ont of the unit and 1 H 2m where H is the height of the unit above the floor in a semi anechoic chamber During in situ operation sound pressure levels may be higher as a result of ambient noise Figure 2 8 1 Sound pressure level measurement unit mm 2 dB A is the maximum value tested under the conditions below Outdoor air temperature 7 C DB 85 R H EWT 30 C LWT 35 C Outdoor air temperature 7 C DB 85 ...

Страница 32: ...B EWT 12 C LWT 7 C Outdoor air temperature 35 C DB EWT 23 C LWT 18 C Octave band center frequency Hz Figure 2 8 3 MHC V22W D2RN8 octave band levels Octave band sound pressure level dB A Outdoor air temperature 7 C DB 85 R H EWT 30 C LWT 35 C Outdoor air temperature 7 C DB 85 R H EWT 40 C LWT 45 Outdoor air temperature 7 C DB 85 R H EWT 47 C LWT 55 Outdoor air temperature 35 C DB EWT 12 C LWT 7 C O...

Страница 33: ...EWT 12 C LWT 7 C Outdoor air temperature 35 C DB EWT 23 C LWT 18 C Octave band center frequency Hz Figure 2 8 5 MHC V30W D2RN8 octave band levels Octave band sound pressure level dB A Outdoor air temperature 7 C DB 85 R H EWT 30 C LWT 35 C Outdoor air temperature 7 C DB 85 R H EWT 40 C LWT 45 Outdoor air temperature 7 C DB 85 R H EWT 47 C LWT 55 Outdoor air temperature 35 C DB EWT 12 C LWT 7 C Out...

Страница 34: ... can be used to detect temperature of water If domestic hot water tank is installed only the thermistor can work as T5 If double zone function is used only the thermistor can woke as Tw2 If both unit are installed an additional thermistor is needed please contact the supplier 2 When the units are connected in parallel such as when the communication between the units is unstable such as an Hd fault...

Страница 35: ...M thermal Mono 34 202005 Midea M thermal Mono Engineering Data Book Midea CAC Confidential ...

Страница 36: ...eface to Part 3 36 2 Installation 37 3 Water Pipework 42 4 Electrical Wiring 46 5 DIP Switch Settings 48 6 Internal Circulation Pump Speed Settings 49 7 User Interface Field Settings 51 8 Operation Parameter 69 9 Network Configuration Guidelines 70 10 Appendix 74 11 Error Code Table 77 Midea CAC Confidential ...

Страница 37: ...ns In this Engineering Data Book the term applicable legislation refers to all national local and other laws standards codes rules regulations and other legislation that apply in a given situation 1 3 Precautions All system installation including installation of water piping and electrical works must only be carried out by competent and suitably qualified certified and accredited professionals and...

Страница 38: ...be installed in well drained well ventilated positions Outdoor units should be installed in positions that are sufficiently close to the desired position of the wired controller The hook and barycenter of the unit should be on a line in vertical direction to prevent improper inclination Make the rope go through the lifting holes from both the right and left sides in the wooden collet 1000mm When u...

Страница 39: ... or fire There is flammable refrigerant in the unit and it should be installed in a well ventilated site If the unit is installed inside an additional refrigerant detection device and ventilation equipment must be added in accordance with the standard EN378 Adequate measures should be adopted to prevent the unit from being used as a shelter by small animals 2 4 Strong Wind Installation Wind of 5m ...

Страница 40: ...mate Installation As the outdoor temperature is measured via the outdoor ambient temperature sensor make sure to install the outdoor unit in the shade or a canopy should be constructed to avoid direct sunlight So that it is not influenced by the sun s heat otherwise system protection may occur 2 7 Base Structure Outdoor unit base structure design should take account of the following considerations...

Страница 41: ...re 3 2 6 Drainage hole 2 9 Spacing Outdoor units must be spaced such that sufficient air may flow through each unit Sufficient airflow across heat exchangers is essential for outdoor units to function properly For more details please refer to the figures below Figure 3 2 7 Single unit installation unit mm Concrete basement h 100mm Rubber shocking proof mat 100 80 Φ 10 Expansion bolt Solid ground o...

Страница 42: ...202005 41 Part 3 Installation and Field Settings Figure 3 2 8 Parallel connect the two units or above Figure 3 2 9 Parallel connect the front with rear sides 600 3000 300 3000 1000 6000 4000 300 Midea CAC Confidential ...

Страница 43: ...or units are equipped with an expansion vessel 8L that has a default pre pressure of 1 0 bar To assure proper operation of the unit the pre pressure of the expansion vessel might need to be adjusted Refer to Table 3 3 1 The total volume of water in the system must be at least 25L and should not exceed the limits specified in Figure 3 3 1 Table 3 3 1 Expansion vessel pre pressure adjustment Install...

Страница 44: ... corresponding maximum water volume can be read from the graph approximately 310L Since the total water volume 250L is below the maximum water volume 310L the expansion vessel suffices for the installation When it is required to change the default pre pressure of the expansion vessel 1 0 bars following guidelines Use only dry nitrogen to set the expansion vessel pre pressure Inappropriate setting ...

Страница 45: ...em or install freeze protection valves which can drain the water from the system before it can freeze Anti freeze fluid Depending on the expected lowest outdoor temperature make sure the water system is filled with a concentration of glycol as mentioned in the table below If the system contains a domestic hot water tank then only propylene glycol is suitable If the system does NOT contain a domest...

Страница 46: ...dried then can be reinstalled in the unit Counterclockwise rotation remove the water flow switch Drying the water flow switch completely 3 6 Adding Water Connect the water supply to the fill valve and open the valve Make sure the automatic air purge valve is open at least 2 turns Refer to Figure 3 3 3 Fill with water until the manometer indicates a pressure of approximately 2 0 bars Remove air in ...

Страница 47: ...an accident 4 3 Guidance Most field wiring on the unit is to be made on the terminal block inside the switch box To gain access to the terminal block remove the switch box service panel Fix all cables using cable ties 7 6 1 3 2 4 5 Caution All installation and wiring must be carried out by competent and suitably qualified certified and accredited professionals and in accordance with all applicable...

Страница 48: ...agram Install the wires and fix the cover firmly so that the cover may be fit in properly 4 4 Wiring Overview Figure 3 4 2 Wiring overview Legend A Outdoor unit I P_d DHW pump field supplied B Solar panel field supplied J SV2 3 way valve field supplied C Wired controller K SV1 3 way valve for domestic hot water tank field supplied D Room thermostat field supplied L Domestic water tank field suppli...

Страница 49: ...ot water tank T5 c See Table 3 4 2 for details Table 3 4 2 Outdoor unit power supply Unit 18kW 22kW 26kW 30kW Maximum overcurrent protector MOP 18 21 24 28 Wiring size mm 2 6 6 6 6 5 DIP Switch Settings DIP switch is located on the hydraulic module main control board and allows configuration of additional heating source thermistor installation the second inner backup heater installation etc Table ...

Страница 50: ...epending on the error code and attempts a cyclical restart Specially for Error code E10 blocking After approx 10 minutes the pump switches off permanently and displays the error code Figure 3 6 3 Fault signals Code No Fault Cause Remedy E04 Mains undervoltage Power supply too low on mains side Check mains voltage E05 Mains overvoltage Power supply too high on mains side Check mains voltage E09 Tur...

Страница 51: ...ng through them Check the system E11 Dry running Air in the pump Check the water volume pressure E21 Overload Sluggish motor pump is operated outside of its specifications e g high module temperature The speed is lower than during normal operation Check the ambient conditions In addition to the LED display the fault signal LED is continuously illuminated in red In order to ensure the service life ...

Страница 52: ...the user interface s touch sensitive keys as detailed in Table 3 7 1 Figure 3 7 1 User interface Table 3 7 1 User interface keys Keys Function MENU Go to the menu structure Navigate the cursor on the display Navigate in the menu structure Adjust settings ON OFF Turn on off the space heating cooling operation or DHW mode Turn on off functions in the menu structure BACK Come back to the up level UNL...

Страница 53: ...M thermal Mono 52 202005 Midea M thermal Mono Engineering Data Book 7 2 Menu Structure Midea CAC Confidential ...

Страница 54: ...ng cooling is OFF the heat pump will heat the water as required If space heating cooling is ON the water will be heated as required when the immersion heater is unavailable OK ENTER FOR SERVICEMAN 1 DHW MODE SETTING 2 COOL MODE SETTING 3 HEAT MODE SETTING 4 AUTO MODE SETTING 5 TEMP TYPE SETTING 6 ROOM THERMOSTAT 1 3 7 OTHER HEATING SOURCE 8 HOLIDAY AWAY MODE SETTING 9 SERVICE CALL SETTING 10 RESTO...

Страница 55: ...ion heater optional in DHW mode If the DHW tank water temperature T5 is less than the minimum of the DHW set temperature T5S and the heat pump leaving water temperature operating limit T5stop refer to Figure 2 6 3 in Part 2 6 Operating Limits less dT5_ON the heat pump starts providing heated water to the DHW tank After t_TBH_delay minutes have elapsed the immersion heater is turned on If T5 reache...

Страница 56: ... for DHW mode either as soon as the space heating cooling set temperatures have been reached refer to Part 3 8 5 COOL MODE SETTING Menu and Part 3 8 6 HEAT MODE SETTING Menu or after t_DHWHP_MAX minutes have elapsed t_DHWHP_MAX sets the maximum length of time that the heat pump will run in DWH mode before switching to space heating mode or space cooling mode if a requirement for space heating cool...

Страница 57: ...r set temperature T1S at which the heat pump provides chilled water to the space cooling terminals When T1 T1S dT1SC the heat pump provides chilled water to the space cooling terminals and when T1 T1S the heat pump does not provide chilled water to the space cooling terminals dTSC sets the temperature difference between the actual room temperature Ta and set room temperature TS above which the hea...

Страница 58: ...e is 35 C which is the heating mode upper ambient temperature operating limit of the heat pump Refer to Figure 3 7 15 T4HMIN sets the ambient temperature below which the heat pump will not operate in heating mode The lowest value that T4CMIN can take is 25 C which is the heating mode lower ambient temperature operating limit of the heat pump Refer to Figure 3 7 16 dT1SH sets the temperature differ...

Страница 59: ...ient temperature 1 of automatic setting curve for heating mode T4H2 sets the ambient temperature 2 of automatic setting curve for heating mode ZONE1 H EMISSION sets the emission type for heating mode ZONE2 H EMISSION sets the emission type for heating mode 7 7 AUTO MODE SETTING Menu MENU FOR SERVICEMAN AUTO MODE SETTING In AUTO MODE SETTING the following parameters should be set T4AUTOCMIN sets th...

Страница 60: ...ater temperature set temperature on the user interface s main screen ROOM TEMP sets whether space heating cooling modes are controlled according to the room temperature detected by the temperature sensor in the M thermal user interface If YES is selected the user is able to set the room temperature set temperature on the user interface s main screen no matter what is the setting of WATER FLOW TEMP...

Страница 61: ...ge zone 2 Double zone is effective 7 9 ROOM THERMOSTAT Menu MENU FOR SERVICEMAN ROOM THERMOSTAT As an alternative to controlling space heating cooling modes according the M thermal unit s leaving water temperature and or the room temperature detected by the temperature sensor in the M thermal user interface separate room thermostat can be installed and used to control space heating cooling modes I...

Страница 62: ...t is shown in Figure 3 7 22 dT1_ASH_ON sets the temperature difference between the heat pump s leaving water set temperature T1S and the heat pump s leaving water temperature T1 above which the additional heating source is on When T1S T1 dT1_AHS_ON the additional heating source is on t_ASH_DELAY sets the delay between the compressor starting and the additional heating source being turned on T4_AHS...

Страница 63: ...length of the phone numbers is 14 digits The black rectangle found between 0 and 9 when scrolling up and down using is converted to a blank space when the phone numbers are displayed to users in MENU FOR SERVICEMAN SERVICE CALL and can be used for phone numbers less than 14 digits in length 7 13 RESTORE FACTORY SETTINGS MENU FOR SERVICEMAN RESTORE FACTORY SETTINGS RESTORE FACTORY SETTINGS is used ...

Страница 64: ...dividual components Use to scroll to the components you want to check and press ON OFF to toggle the on off state of the component If a valve does not turn on off when its on off state is toggled or if a pump heater does not operate when turned on check the component s connection to the hydronic system main PCB Figure 3 7 32 POINT CHECK menu 11 TEST RUN Active the settings and active the TEST RUN ...

Страница 65: ...30 seconds later if the flow switch detects that the water flow is normal PUMPI operates for 3 min After the pump stops 60s the SV1 closes and SV2 opens 60s later both PUMI and PUMPO will operate After a further 2 min the flow switch start to check the water flow If the water flow rate is sufficient both PUMPI and PUMPO operate until the next command is received If the water flow rate is insuffici...

Страница 66: ...at pump will then operate until the water temperature rises to the set temperature or the next command is received On systems with no auxiliary heat source AHS the heat pump will then operate until the water temperature rises to the set temperature or the next command is received If any error code is displayed during the cool mode running operation the cause should be investigated Refer to Part 3 ...

Страница 67: ... is open T1S sets the heat pump s leaving water set temperature in preheating for floor mode t_fristFH sets the duration of preheating for floor mode The operation of the unit during preheating for floor mode is illustrated in Figure 3 7 50 Figure 3 7 40 Preheating for floor Abreviations t_interval_H Compressor re start delay in space heating mode Refer to Part 3 8 6 HEAT MODE SETTING Menu Whilst ...

Страница 68: ...ATE sets the floor drying up operation start date The heat pump s leaving water set temperature during the floor drying up operation is illustrated in Figure 3 7 40 During the floor drying up operation all buttons except OK are inactivated To exit the floor drying up operation press OK and then select YES when prompted Note In the event of a heat pump malfunction floor drying up mode will continue...

Страница 69: ... to fulfill with installation ON OFF M1M2 sets the control function of M1M2 for remote ON OFF of unit or AHS of TBH SMART GRID sets whether SMART GRID control signal is connected to hydronic PCB T1B sets whether T1B sensor exist in the installation Tbt1 Tbt2 set whether balance tank temperature sensors are installed in the balance tank Tbt1 upper temp sensor Tbt2 nether temp sensor Ta sets the Ta ...

Страница 70: ... T5 WATER TANK TEMP 53 C TIS2 C2 CLIMATE CURVE TEMP 35 C TW_O PLATE W OUTLET TEMP 35 C TW_I PLATE W OUTLET TEMP 30 C 4 9 OPERATION PARAMETER 01 Tbt2 BUFFERTANK_LOW TEMP 35 C ADDRESS IDU SOFTWARE 01 09 2019V01 Tbt1 BUFFERTANK_UP TEMP 35 C 5 9 Tsolar 25 C OPERATION PARAMETER 01 COMP CURRENT 12A ADDRESS COMP FREQENCY 24Hz ODU MODEL 6kW COMP RUN TIME 54 MIN COMP TOTAL RUN TIME 1000Hrs EXPANSION VALVE ...

Страница 71: ...ngs include AP MODE and RESTORE WLANSETTING Go to MENU WLAN SETTING AP MODE Press OK to activate the WLAN refer to Figure 3 8 1 Select YES press OK to select AP mode Select AP Mode correspondingly on the mobile device and continue the follow up settings according to the APP prompts Figure 3 8 1 WLAN setting menu Go to MENU WLAN SETTING RESTORE WLAN SETTING select YES press OK and wireless configur...

Страница 72: ...n the following QR code in Figure 3 8 3 or research MSmartLife in APP STORE or GOOGLE PLAY to install the APP Figure 3 8 3 QR code for MSmartLife APP 9 2 2 Sign in After installation open the APP and click the button to register account according to the guide Figure 3 8 4 register account Midea CAC Confidential ...

Страница 73: ...ono Engineering Data Book 9 2 3 Add Home Appliances Choose the wired controller model then go to add the device Operate the wired controller according to APP prompts Wait for the home appliance to connect and click Finish Midea CAC Confidential ...

Страница 74: ...er is constantly on and the unit can be controlled through the APP If the network distribution process fails or the mobile connection demands reconnection and replacement operate RESTORE WLAN SETTING on the wired controller and then repeat the above process Figure 3 8 6 successful connection Figure 3 8 7 failed connection Midea CAC Confidential ...

Страница 75: ... The relationship between outdoor ambient temperature T4 and leaving water set temperature T1s is described as in Figure 3 9 2 Figure 3 9 3 Figure 3 9 4 and Figure 3 9 5 The automatic setting curves are the ninth curve for cooling and heating mode the ninth curve can be set as in Figure 3 9 6 and Figure 3 9 7 Figure 3 9 2 Low temperature curves for heating mode1 Leaving water set temperature C Not...

Страница 76: ...ECO mode Figure 3 9 4 Low temperature curves for cooling mode1 Leaving water set temperature C Notes 1 It only has the curves of the low temperature setting for cooling if the low temperature is set for cooling 2 Curve 4 is default in low temperature cooling mode 34 39 44 49 54 30 25 20 15 10 5 0 5 10 15 20 25 30 35 40 T1S T4 Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 4 6 8 10...

Страница 77: ...ure cooling mode Figure 3 9 6 Automatic setting curve for heating mode Figure 3 9 7 Automatic setting curve for cooling mode The setting of T1SETH1 T1SETH2 T4H1 T4H2 refer to Part 3 8 6 HEATING MODE SETTING Menu and T1SETC1 T1SETC2 T4C1 T4C2 refer to Part 3 8 5 COOLING MODE SETTING Menu 15 17 19 21 23 25 10 5 0 5 10 15 20 25 30 35 40 45 50 T1S T4 Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Cur...

Страница 78: ...l board of hydraulic module and main control board PCB B Main control board of unit H1 Communication fault between inverter module PCB A Inverter module and main control board PCB B Main control board of unit H2 The plate exchanger refrigerant outlet liquid pipe temp sensor T2 fault H3 The plate exchanger refrigerant outlet gas pipe temp sensor T2B fault H4 Three times P6 protection H5 Room temp s...

Страница 79: ...outlet in heating mode L0 DC compressor inverter module fault L1 DC bus low voltage protection from inverter module mostly when compressor running L2 DC bus high voltage protection from DC driver L4 MCE fault L5 Zero speed protection L7 Phase sequence fault L8 Compressor frequency variation greater than 15Hz within 1 second protection L9 Actual compressor frequency differs from target frequency by...

Страница 80: ... midea com www midea group com Note Product specifications change from time to time as product improvements and developments are released and may vary from those in this document GD MIDEA Heating Ventilating Equipment Co Ltd participates in the ECP programme for LCP HP Check ongoing validity of certificate www eurovent certification com Midea CAC Confidential ...

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