Mitsubishi Electric e Series Installation & Operation Manual

Air-cooled chilling unit

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e-series

Air-cooled Chilling Unit

Installation/Operation Manual

EAHV-M1500YCL(-N)(-BS)

EAHV-M1800YCL(-N)(-BS)

EACV-M1500YCL(-N)(-BS)

EACV-M1800YCL(-N)(-BS)

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Safety Precautions.......................................................................... 2

1. Selecting the Installation Site...................................................... 9

2. Unit Installation ......................................................................... 12

3. Water Pipe Installation.............................................................. 15

4. Electrical Wiring Installation...................................................... 27

5. System Configurations.............................................................. 39

6. Troubleshooting ........................................................................ 68

7. Operating the Unit..................................................................... 75

8. Main Specifications................................................................... 83

9. Maintenance ............................................................................. 88

EAHV/EACV

For use with R32

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Summary of Contents for Mitsubishi Electric e Series

Page 1 <ORIGINAL> e-series EAHV/EACV Air-cooled Chilling Unit For use with R32 Installation/Operation Manual EAHV-M1500YCL(-N)(-BS) CONTENTS EAHV-M1800YCL(-N)(-BS) Safety Precautions................2 EACV-M1500YCL(-N)(-BS) 1. Selecting the Installation Site............9 EACV-M1800YCL(-N)(-BS) 2. Unit Installation ................. 12 3. Water Pipe Installation.............. 15 4. Electrical Wiring Installation............27 5.
Page 2 Forcing the unit to operate the unit by defeating the safety features of the devices such as the pressure switch or the temperature switch, making unauthorized changes to the switch settings, or using accessories other than the ones recommended by Mitsubishi Electric may result in smoke, fire, or explosion.
Page 3 This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Keep the space well ventilated.
Page 4 To reduce the risk of injury, do not insert fingers or foreign objects into air inlet/outlet grills. To reduce the risk of injury, wear protective gear when working on the unit. Do not release refrigerant into the atmosphere. Collect and reuse the refrigerant, or have it properly disposed of by an authorized agency.
Page 5 Properly dispose of the packing materials. Plastic bags pose suffocation hazard to children. The unit should be installed only by personnel certified by Mitsubishi Electric according to the instructions detailed in the Installation/Operation Manual. Improper installation may result in refrigerant leakage, water leakage, injury, electric shock, or fire.
Page 6 CAUTION Check that no substance other than the specified refrigerant (R32) is present in the refrigerant circuit. Infiltration of other substances may cause the pressure to rise abnormally high and cause the pipes to explode. To keep the ceiling and floor from getting wet due to condensation, properly insulate the pipes. Piping work should be performed by the dealer or qualified personnel according to the instructions detailed in the Installation Manual.
Page 7 Transportation and repairs WARNING The unit should be moved, disassembled, or repaired only by qualified personnel. Do not alter or modify the unit. Improper repair or unauthorized modifications may result in refrigerant leakage, water leakage, injury, electric shock, or fire. After disassembling the unit or making repairs, replace all components as they were.
Page 8 To ensure proper operation of the unit, periodically check for proper concentration of anti- freeze. Inadequate concentration of anti-freeze may compromise the performance of the unit or cause the unit to abnormally stop. Take appropriate measures against electrical noise interference when installing the air conditioners in hospitals or facilities with radio communication capabilities.
Page 9 1. Selecting the Installation Site [1] Installation Conditions Select the installation site in consultation with the client. Select a site to install the unit that meets the following conditions: • The unit will not be subject to heat from other heat sources. •...
Page 10 [2] Installation Space Requirement <1> Single unit installation (1) Required space [Opposite service side] [Left side] 0.9 m (Service space) 0.9 m (Service space) [Right side] 0.9 m (Service space) [Service side] 0.9 m (Service space) (2) If entire surrounding area enclosed by walls (but vent holes installed at bottom of wall) 0.5 m Wall [Opposite service side]...
Page 11 <2> Multiple unit installation (1) Required space [Left side] [Opposite service side] 0.9 m 0.9 m (Service space) (Service space) [Service side] 0.9 m [Right side] (Service space) 0.9 m (Service space) (2) If entire surrounding area enclosed by walls (but vent holes installed at bottom of wall) [Opposite service side] 1.5 m or more 0.5 m...
Page 12 2. Unit Installation Units should be installed only by personnel certified by Mitsubishi Electric. [1] Product suspension method Protective pads 10 m or longer × 2 ropes (5 m or longer × 4 ropes) 1.6 m or more Unit Plate suspension fittings •...
Page 13 [2] Center of gravity position The center of gravity position is shown with the mark. Standard piping type 1080 (100) (60) 3280 <Service side> <Right side> Inside header piping type 1080 (100) (60) 3280 <Service side> <Right side> (Unit: mm) Model EAHV-M1500, 1800YCL(-BS) 1610...
Page 14 [3] Installation on foundation • Securely fix the unit with bolts to keep the unit from falling down during earthquakes. • Install the unit on a foundation made of concrete or iron. • Noise and vibrations from the unit may be transmitted through the floor and walls. Provide adequate protection against noise and vibration.
Page 15 3. Water Pipe Installation [1] Schematic Piping Diagram and Piping System Components <1> Water circuit Please build the water circuit so that it is a closed system. Do not use water directly for showers or other applications. Do not allow other heat source water to mix with the water circuit.
Page 16 [2] Standard piping type 65A housing type joint Water outlet Water inlet Connection detail Groove pipes at chiller side The dimension of the groove pipe at the chiller side Victaulic standard groove specifications (Unit: mm) Pipe size 2-1/2B (65A) ø76.1 ø72.2 –...
Page 17 [3] Inside header piping type Water outlet Water inlet 150A housing type joint Straub joint Connection detail The dimension of the groove pipe Groove pipes at chiller side at the chiller side (Unit: mm) Pipe size 6B (150A) ø165.1 ø160.8 + 0.7 –...
Page 18 Installing the straub joint Marking The seal rubber has a lip construction to improve water stopping performance. Adjust the Straub position to that the marking on both sides is visible. θ θ θ The bolts need only be tightened until the casing is sealed (metal touches).
Page 19 [4] Notes on Pipe Corrosion Water treatment and water quality control Poor-quality circulating water can cause scale build-up and corrosion in the water-side heat exchanger, reducing heat-exchange performance. Properly control the quality of the circulating water. • Removing foreign objects and impurities in the pipes During installation, keep foreign objects, such as welding and sealant fragments and rust, out of the pipes.
Page 20 (5) Suspended solids in the water Sand, pebbles, suspended solids, and corrosion products in water can damage the heating surface of the heat exchanger and cause corrosion. Install a good quality strainer (20 mesh or more) at the inlet of the unit to filter out suspended solids.
Page 21 [5] Installing the Strainer and Flow Switch <1> Installing the strainer Install a strainer on the inlet pipe near the unit to filter out suspended solids and prevent clogging or corrosion of the heat exchanger. Install a strainer in a way that allows for easy access for cleaning, and instruct the user to clean it regularly. Operating the units with a clogged strainer may cause the units to make an abnormal stop.
Page 22 [6] Installing the external water temperature sensor <1> Parts that are required to install an external water Wire specifications temperature sensor Wire size 2-core cable Min. 1.25 mm (1) External water temperature sensor Type CVVS or CPEVS (2) Wiring to connect the sensor and the unit* Maximum length 20 m (3) Wiring terminals to connect the wiring to the sensor and the terminal block on the unit...
Page 23 [7] Ensuring enough water in the water circuit <1> Required amount of water (for single unit) If the amount of water in the water circuit (circulating water circuit) is insufficient, the unit operation hours may become shorter or the amount of water temperature change to be controlled may become extremely large. Also, the defrost operation during the heating mode may not function properly.
Page 24 <2> Required amount of water (for multiple units) The total water volume required for an air conditioning system is determined by whichever operation (cooling or heating) requires more water. Cooling operation: 850 L per unit Heating operation: 1650 L per unit The total water volume required for a system is the The total water volume required for a system is the sum of the water required for each unit in the sys-...
Page 25 Example system with 18 EAHV-M1500YCL units (with 6 simultaneously operated groups) There are 7 units (18 units × 40% = 7.2 units → 7 units) that are simultaneously operable in the defrost mode within the system. Among the simultaneously operated groups, a total of 6 units in 6 groups (3 units × 35% = 1.05 unit→...
Page 26 [8] Water Piping Size and Location <1> Standard piping type Drain R1 1/2 Water outlet 65A housing type joint Water inlet 65A housing type joint <2> Inside header piping type Drain Water outlet R1 1/2 150A housing type joint Water inlet 150A housing type joint (60) 3280...
Page 27 4. Electrical Wiring Installation [1] Main Power Supply Wiring and Switch Capacity Schematic Drawing of Wiring (Example) A: Switch (with current breaking capability) 3N~380–415V B: Current leakage breaker C: Unit Main power supply wire size, switch capacities, and system impedance Local switch (A) Minimum wire size (mm Max.
Page 28 [2] Cable Connections <1> Schematic Diagram of a Unit and Terminal Block Arrangement <Unit: mm> <Service side> Power supply wiring (from the side) Terminal box Power supply wiring (from the bottom) Terminal box <Unit bottom> See “Detailed drawing” <Service side> Detailed drawing Control wiring under 24 VAC...
Page 29 <2> Precautions when fastening screws * Faulty contacts due to loose screws may cause overheating and fire. * Using the circuit board while it is damaged may cause overheating and fire. 1 Screw fastening torque Power supply terminal block, M8 screw: 10 to 13.5 N·m Use the following methods to check that the screws have been fastened.
Page 30 EAHV-M1500, 1800YCL(-N)(-BS)/EACV-M1500, 1800YCL(-N)(-BS) ELECTRICAL WIRING DIAGRAM MAIN CIRCUIT POWER SUPPLY 3N~ 50Hz 380/400/415V L1 L2 L3 L1 L2 L3 TO SUB CIRCUIT TERMINAL COMPRESSOR CAP BOARD BLACK RYPN WHITE WHITE -P1C CN -CAP ACCT BLUE ACCT CNFAN2 GREEN BLACK WHITE GREEN WHITE -P1C...
Page 31 CN201 CN105 TERMINAL CONVERSION BOARD PS BOARD 1A CC-CONV TERMINAL BOX 1 2 3 4 5 CN101 BLUE CN600 CNIT CN4A CN4C WHITE CN100 BLACK BLACK BLACK WHITE CNLVA X300 LEV1AMC WHITE POWER SUPPLY ELECTRONIC CIRCUIT CNDC EXPANSION CONTROL BOARD 1A VALVE CNPW EAHV ONLY...
Page 32 Note1. The broken lines indicate the optional parts, field-supplied parts, and field work. Note2. Dashed lines indicate control box. Note3. For modules in the same unit, provide daisy-chain wiring between M1, M2 and SG. Note4. The control box has many parts charged with high voltage in it. Before inspecting the inside of the control box, be sure to turn off the power supply and leave it alone for at least 10 minutes and then confirm that the voltage between the tab terminal (FT-P and FT-N) declined sufficiently (to 20 V DC or less).
Page 34 SUB CIRCUIT COMPRESSOR CAP BOARD BLACK RYPN WHITE WHITE -P1C CN -CAP ACCT BLUE ACCT CNFAN2 BLACK WHITE GREEN BLACK WHITE GREEN WHITE -P1C -CAP BLUE CNFAN1 WHITE WHITE WHITE CN-P CN-N WHITE FT-P2 NOISE FILTER NOISE FILTER FT-P1 SURGE SURGE ABSORBER ABSORBER...
Page 35 DISPLAY POWER 7SEG1 7SEG3 BOARD 7SEG2 7SEG4 CC-DSP RESET CN005 WHITE WHITE WHITE TERMINAL BOX PS BOARD 2A 1 2 3 4 5 CN600 CN101 CN605 CN4A CN4C CNIT WHITE BLUE CN100 WHITE BLACK BLACK BLACK WHITE CNLVA WHITE LEV2AMC X300 POWER SUPPLY ELECTRONIC...
Page 36 When using a local controller, refer to the table below for the types of input/output signals that are available and the operations that correspond to the signals. External Input/Output Input Dry contact ON (Close) OFF (Open) Terminal block type (a) UNIT OPERATION Run/Stop The unit will go into operation when the water The unit will stop except when the unit is in...
Page 37 Input and output correspondence table When wiring on site, check the operation during the commissioning. Terminal block System leader Group leader SUB unit unit unit K23-K26 Stop Fan mode K91-K92 Forced Normal Cooling/Heating switching K91-K93 Heating Cooling Pump interlock K01-K02 Normal Error Anti freeze...
Page 38 External signal interface Optional remote Centralized controller controller (AE-200) (PAR-W31MAA) Pump interlock (Normal/Error) M-NET Transmission line Mode change (Cooling ECO/ (Cooling ECO) Cooling) (Normal/Error) Flow switch Operation display output (Individual unit) (Run/Stop) Anti freeze (ON/OFF) Error display output (Individual unit) Mode change (Heating ECO/ (Heating ECO)
Page 39 5. System Configurations The system must be configured only by personnel certified by Mitsubishi Electric. [1] Schematic Diagrams of Individual and Multiple Units Connection Systems (1) Individual system External temperature sensor 2 (option) Flow switch MAIN Pump interlock Field-supplied dry contact...
Page 40 [2] Switch Types and the Factory Settings (1) Switch names and functions Terminal box Terminal box Control box for MAIN circuit Control box for SUB circuit <Left side> <Right side> There are three main ways to set the settings as follows: 1Dip switches (SW4 - SW7) 2Dip switches used in combination with the push switches 3Rotary switches...
Page 41 Different types of switches on the PCB [Control board] [Enlarged view of operation area] Push switch (SWP1) Operation area Push switch (SWP2) Push switch (SWP3) LED display Rotary switch (SWU2) (0-9) Rotary switch (SWU1) (0-9) Dip switch (SW7) Dip switch (SW6) Dip switch (SW5) Dip switch (SW4) Initial Setting...
Page 42 "-" in the table indicates that the function in the corresponding row will be disabled regardless of the actual switch setting. The factory setting for these items is OFF. * Connection to a BMS requires an installation of Procon A1M (Modbus interface), which is available from MITSUBISHI ELECTRIC UK. Use a BMS with insulation.
Page 43 [3] Configuring the Settings The settings must be set only by a qualified personnel. <1> System configuration (1) Set the dip switches. Switch settings on the MAIN circuit MAIN circuit board SUB circuit board Set the dip switches (labeled A in the figure at right) that correspond to the items below, according to the local system.
Page 44 Setting the switches on the system leader unit Make sure the address of the MAIN circuit on the Main circuit board SUB circuit board main module is set to "1" (labeled A in the figure at right) and that the address of the SUB circuit on the main module is set to "51"...
Page 45 Selector switch settings [Remote] Controller operation [ON] Unit operation [OFF] Unit stop [Local] Local operation Heating Remote Forced PumpOn 入暖房遠方降雪ポンプ強制 Not used 切冷房手元常時強制解除 Cooling Local Normal PumpOff [Cooling] Cooling operation [Forced] When the unit stops, fan operates. [Heating] Heating operation [Normal] When the unit stops, fan does not operate.
Page 46 Priority order of the water-temperature-setting-input-signal sources Water temperature can be controlled by using the signals from the four types of input sources listed below. The setting for the item with higher priority will override the settings for the items with lower priorities. The water temperature will be controlled according to the temperature setting in the "Target water temperature"...
Page 47 Priority order of the operation signal sources Input from centralized Remote controller No-voltage contact PAR-W31MAA controller AE-200 or BMS Unit operation (Run/Stop) The last setting has priority. Cooling *1 The last setting has priority. Cooling ECO can not be set from the remote controller or the Cooling ECO *1*2 centralized controller.
Page 48 <2> Making the settings Use the LED display and the three push switches (SWP1 (↑), SWP2 (↓), and SWP3 (Enter)) to change the current settings on the circuit board and to monitor various monitored values. (1) Setting procedures Take the following steps to set the push switches SWP1 through SWP3. These switches must be set after the dip switch SW4 has been set.
Page 49 (2) Table of settings items Set dip switches SW7-1, SW7-2, and SW4 as shown in the table below to set the value for the items in the "Setting item" column. Need or non-need to set the setting *5 System Group switch Dip switch setting (SW4) *2 Setting Item...
Page 50 Need or non-need to set the setting *5 System Group switch Dip switch setting (SW4) *2 Setting Item Default Notes setting *1 SW7-1 Preset temp. A (Cooling) 4ºC Range 4–30ºC 9 10 SW7-1 Preset temp. B (Cooling) 30ºC Range 4–30ºC 9 10 SW7-1 Preset temp.
Page 51 Outlet water temperature Thermo-ON temperature changes 1 Cooling Thermo-differential 1 Outlet water temperature Preset water (Cooling mode): 3°C changes-2 temperature (Default) Target temp. Thermo-differential 2 (Cooling mode): 2°C (Default) When the water temperature is controlled based on the outlet water Thermo-OFF temperature temperature, compressor frequency will be controlled in the...
Page 52 <3> Setting procedures (1) System setting 1. Making the settings for the initial start-up process (A) Single unit Setting address 1 Turn off the power. Address [1/51] System leader unit (Address 1 SW5-2, 5-3: ON) System leader unit Turn the power back on. Address 1 →...
Page 53 (C) System leader unit and group leader unit (3 groups, 1 unit in each group) Address [1/51] System leader unit Remote controller Address [2/52] Group leader unit Address [3/53] Group leader unit 1 Setting address 1 2 Setting address 2 Turn off the power.
Page 54 (D) System leader unit, Group leader unit and Sub unit (2 groups, 3 units in each group) Address [1/51] Address [2/52] Address [3/53] System leader unit Sub unit Sub unit Remote controller Address [4/54] Address [5/55] Address [6/56] Group leader unit Sub unit Sub unit 1 Setting address 1...
Page 55 2. Multiple unit control By setting SW5-6 to ON for address 1, optimum control of number of operating units will be performed. All units will simultaneously operate when SW5-6 is set to OFF. (A) System leader unit, group leader unit, and sub unit Address [1/51] Address [2/52] Address [3/53]...
Page 56 3. Example of system configuration Optimum control of number of operating units Address [1/51] Address [2/52] Address [3/53] Address [4/54] Address [5/55] Address [6/56] Group leader Group leader Group leader Group leader Group leader System leader unit unit unit unit unit unit PAR-W31MAA...
Page 57 (2) Water-temperature setting Different water temperature settings can be set for different modes. Set the dip switches on the circuit board as follows to make the settings for the items described in this section. Press the push switch SWP3 to enable the configuration changes. Press the push switches SWP1 (↑) or SWP2 (↓) to increase or decrease the value.
Page 58 *1 Only the switches designated in the table must be set to ON. (The other switches must be OFF.) *2 Temperature setting increments: 0.5ºC *3 No-voltage contact KN51-KN61: OFF *4 No-voltage contact KN51-KN61: ON The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF. 9 10 Heating ECO When the outdoor temp A and B are set to the same value,...
Page 59 (3) Peak-demand control operation Peak-demand control is a function used to control the power consumptions of the units. The compressor's maximum operating frequency will be controlled according to the peak-demand control signal. Set the dip switches on the circuit board as follows to make the settings for the items described in this section. Press the push switch SWP3 to enable the configuration changes.
Page 60 (5) Setting the water temperature using analog signal input When dip switch SW5-7 is set to ON (Enable external input), SW5-8 is set to OFF, and SW5-9 is set to OFF, the target water temperature varies with the preset temperatures A and B and the type of analog input signal. Set the dip switches on the circuit board as follows to make the settings for the items described in this section.
Page 61 • When the water temperature setting input signal type is 0-10 V • External analog input signal of 0 V: Preset temp. A • External analog input signal of 10 V: Preset temp. B • External analog input signal of between 0 and 10 V: the preset temperature will be linearly interpolated. Preset temp B Preset temp A 10 V...
Page 62 (6) Setting the capacity control ratio using analog signal input When dip switch SW5-7 is set to ON (Enable external input), SW5-8 is set to ON, and SW5-9 is set to OFF, the capacity control ratio varies with the type of analog input signal. •...
Page 63 • When the capacity control setting input signal type is 2-10 V • External analog input signal of 2 V: 0% • External analog input signal of 10 V: 100% • External analog input signal of between 2 and 10 V: the percent will be linearly interpolated. Load ratio 100% 10 V...
Page 64 (7) Setting the supplementary heater signal output conditions A temperature at which the signal output to operate supplementary heaters can be selected. Supplementary heater signal output conditions The operation command signal is ON and at least one of the following two conditions is met. 1 Water-temperature control option (SW5-4) is set to OFF, the inlet water temperature drops below a set water temperature, and the outdoor temperature drops below a set outdoor temperature.
Page 65 (8) Setting the drain pan heater signal output condition A temperature at which the signal output to operate drain pan heaters can be selected. Drain pan heater signal output condition The following condition is met. The outdoor temperature drops below a set outdoor temperature. The drain pan signal is output from KB1-KB2.
Page 66 (9) External temperature sensor control An optional External temperature sensor (TW-TH16) is required. Outlet water System Sub unit Sub unit leader Simultaneous unit operating group External temperature SW5-5 ON sensor 2 SW5-4 ON SW5-4 ON SW5-4 ON (SW5-5 ON) Group Sub unit Sub unit leader...
Page 67 (10) Demand operation The demand function can reduce the power consumption. Single unit control In the case of single unit control, the unit is operated up to the specified demand limit. System leader unit unit unit Multiple unit control In the case of multiple unit control, the number of operating units are limited by demand value. When the demand value is 70%, the group operate such as below figure.
Page 68 6. Troubleshooting Troubleshooting must be performed only by personnel certified by Mitsubishi Electric. [1] Diagnosing Problems for which No Error Codes Are Available If a problem occurs, please check the following. If a protection device has tripped and brought the unit to stop, resolve the cause of the error before resuming operation.
Page 69 [2] Diagnosing Problems Using Error Codes If a problem occurs, please check the following before calling for service. (1) Check the error code against the table below. (2) Check for possible causes of problems listed in the "Cause" column that correspond to the error code. (3) If the error codes that appear on the display are not listed in the table below, or no problems were found with the items listed in the "Cause"...
Page 70 Error reset *2 Error Cause Cause Operation SW Error type code *1 (Installation/Setting error) (Parts problems) Selector Remote switch controller Discharge temperature fault No water • High-pressure sensor fault (A discharge refrigerant temperature of 120ºC or Abrupt change in water temperature •...
Page 71 Error reset *2 Cause Cause Error Operation SW Error type code *1 (Installation/Setting error) (Parts problems) Selector Remote switch controller ACCT sensor/circuit fault • INV board fault Inverter error Open-circuited IPM/loose ACCT sensor • ACCT sensor fault • Broken compressor wiring •...
Page 72 Abnormal stop condition table Preliminary error One side circuit can be Another unit can be Error code Error type code operated operated in the group 1102 Discharge temperature fault 1202 1138 Hot water abnormal rise 1176 Discharge SH fault 1276 1189 ACC inlet SH fault 1289...
Page 73 : One side circuit can be operated. : Another module can be operated. : Operation impossible : Not abnormal stop *1: Case of the one pump system *2: Case of the communication error between the MAIN and SUB circuits *3: "*" shows types of components. (0/1: COMP A, 2: COMP B, 5: FAN A, 6: FAN B)
Page 74 [3] Calling for Service If the problem cannot be solved by following the instructions provided in the table on the previous pages, please contact your dealer or servicer along with the types of information listed below. (1) Model name The model name is a string that starts with "EAHV" or "EACV" and is found on the lower part of the unit. (2) Serial number Example: 75W00001 (3) Error code...
Page 75 7. Operating the Unit [1] Initial Operation 1. Make sure the Run/Stop switch that controls the unit on the local control panel is switched off. 2. Switch on the main power. 3. Leave the main power switched on for at least 12 hours before turning on the Run/Stop switch that controls the unit on the on-site control panel to warm up the compressor.
Page 76 [3] Using the Unit in Sub-freezing CAUTION In areas where temperature drops to freezing In areas where temperature can drop low enough during the periods of non-use, blow the water out to cause the water in the pipes to freeze, operate of the pipes or fill the pipes with anti-freeze the unit often enough to prevent the water from solution.
Page 77 [4] Using the Remote Controller (PAR-W31MAA) <1> Power ON/OFF Unit1 Press the [ON/OFF] button. During operation Next The ON/OFF lamp will light up in green, and the operation will start. Unit1 Pressing the [ON/OFF] button brings up a confirmation screen. When it appears, press the [F3] button.
Page 78 <3> Using Weekly timer Function description Following settings can be used to change the operating schedule according to the day of the week. • Set the schedule for ON/OFF, operation mode and set temperature for each day of the week. Button operation Select "Weekly timer"...
Page 79 In the Operation setting screen, press the [F1] button to move the cursor to Unit1 "Schedule". Power Save Press the [F3] button to select "Yes". Schedule Fan Mode Normal Anti-freeze Next <4> Using Period timer Function description Following settings can be made to change the specified period and daily operating schedule. •...
Page 80 The pattern setting screen will be displayed. Unit1 * Refer to the section on Weekly timer for details on using the pattern setting screen. Anti-Freeze Heating Weekly timer operation will be disabled in the following situations: • When Schedule is disabled When Schedule is disabled with the centralized controller or the connected unit, Schedule settings cannot be made with the remote controller.
Page 81 <5> Using power save Function description Power Save is a function that regulates the compressor rotation count either daily or according to a specified period and according to a preset time interval or regulated capacity. Use this function when you want to inhibit electric power use. A typical scenario where Power Save can be used to inhibit the power consumption for water heating would be periods of particularly heavy operating loads for air conditioning and other equipment, such as periods when large numbers of people check in at a hotel or similar accommodation facility.
Page 82 Press the [F1] to [F4] buttons to set the Power Save start time, end time and Unit1 control value. In the Operation setting screen, press the [F1] button to move the cursor to Unit1 Power Save. Power Save Press the [F3] button to select "Yes". Schedule Fan Mode Normal...
Page 83 8. Main Specifications [1] Model name 1800 BS: Salt proof type none: Standard type N: Inside header piping type none: Standard piping type L: Factory-charged refrigerant 3kg × 4 C: Product sequence Voltage series Y: 3N ~ 380-400-415V Capacity 1500: 50HP 1800: 60HP Refrigerant type M: R32...
Page 84 Air side (EAHV) Salt-resistant cross fin & aluminum tube Air side (EACV) Salt-resistant corrugated fin & aluminum micro channel Compressor Type Inverter scroll hermetic compressor Maker MITSUBISHI ELECTRIC CORPORATION Starting method Inverter Quantity Motor output 11.5 × 4 Lubricant MEL46EH Air flow rate 270 ×...
Page 85 *1 Under normal cooling conditions at outdoor temp 35ºCDB/24ºCWB (95ºFDB/75.2ºFWB) outlet water temp 7ºC (44.6ºF) inlet water temp 12ºC (53.6ºF). Pump input is not included in cooling capacity and power input. *2 Under normal cooling conditions at outdoor temp 35ºCDB/24ºCWB (95ºFDB/75.2ºFWB) outlet water temp 7ºC (44.6ºF) inlet water temp 12ºC (53.6ºF).
Page 86 EN14511 EN14511 Contains fluorinated greenhouse gases. Contains fluorinated greenhouse gases. MANUFACTURER: MANUFACTURER: MITSUBISHI ELECTRIC CORPORATION MITSUBISHI ELECTRIC CORPORATION AIR-CONDITIONING & REFRIGERATION SYSTEMS WORKS AIR-CONDITIONING & REFRIGERATION SYSTEMS WORKS 5-66, TEBIRA, 6-CHOME, WAKAYAMA CITY, JAPAN 5-66, TEBIRA, 6-CHOME, WAKAYAMA CITY, JAPAN...
Page 87 2020 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN AUTHORIZED REPRESENTATIVE IN EU: Manufacturer MITSUBISHI ELECTRIC EUROPE B.V. HARMAN HOUSE, 1GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K. COMMERCIAL REGISTRATION NO.33279602 EAHV-M1500YCL(-N)(-BS), EACV-M1500YCL(-N)(-BS) Model number EAHV-M1800YCL(-N)(-BS), EACV-M1800YCL(-N)(-BS) Motor power input (kW) 0.56...
Page 88 9. Maintenance [1] Operation status check Operate the unit for at least 30 minutes until the operation is stabilized before checking the operation status. <1> Voltage Ensure that the power-supply voltage is normal. • Ensure that the terminal voltage is within the range between -5% and +5% of the rated voltage at the rated frequency.
Page 89 <4> Water temperature Ensure that the inlet/outlet cold/hot water temperatures match the set temperatures. When a standard piping type is shared by two or more modules, make sure that the temperatures at the inlet/outlet of each module are approximately equal. Ensure that the water-flows are well-balanced.
Page 90 [2] Long period of non-use After the season or during summer <1> When the units remain turned off for an extended period such as after the season or during summer, turn off the power switch. (Turn off the power switch on the circulation pump if it is connected to a separate circuit.) •...
Page 92 [3] Guidelines for Maintenance and Inspection of Major Parts of Air-cooled Air-conditioners and Air-cooled Heat Pumps The table below shows regular inspection items, schedule, and parts replacement criteria under normal use condition. The "Inspection schedule" column under the "Preventive maintenance" column indicates the regular inspection schedule, and the "Maintenance schedule"...
Page 93 Remark of semiotics : Inspection schedule : Cleaning or adjustment schedule of the parts based on the inspection result : Replacement or repair of the parts in case of error after inspection : Regular replacement (consumable parts) Preventive maintenance Inspection Maintenance Elapsed year* schedule...
Page 96 Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Authorized representative in EU:MITSUBISHI ELECTRIC EUROPE B.V. HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K. WT10603X01...
Page 97 Related Links Model Number: EACV-M1500YCL-N-BS EA(C)(H)V-M1500/1800-YCL-N Databook (MEES20K012) EA(C)(H)V-M1500/1800-YCL-N Databook_(MEES23K034) EA(C)(H)V-M1500/1800-YCL-N Parts Catalogue (BWE020200) EA(C)(H)V-M1500/1800YCL-N Declaration of Conformity Installation Manual e Series R32...

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