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Mitsubishi Electric QAHV-N560YA-HPB Installation & Operation Manual
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Mitsubishi Electric QAHV-N560YA-HPB Installation & Operation Manual

Hot water heat pump unit
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Hot Water Heat Pump Unit
Installation/Operation Manual
QAHV-N560YA-HPB
Thoroughly read this manual prior to use.
Save this manual for future reference.
Some of the items in this manual may not apply to made-to-order units.
Make sure that this manual is passed on to the end users.
Safety Precautions ................................................................2
1. Selecting the Installation Site ............................................6
[1] Installation Conditions...................................................6
[2] Installation Space Requirements .................................. 7
[3] System installation restrictions......................................9
2. Unit Installation ................................................................10
3. Water Pipe Installation.....................................................11
[1] Schematic Piping Diagram and Piping System
Components ...............................................................11
[2] Notes on Pipe Corrosion.............................................13
[3] Water Pipe Hole Size and Location ............................14
[4] Pipe gradient and air venting valve (Outlet hot water
pipe)............................................................................14
[6] Secondary side control system ...................................15
4. System Configurations ....................................................22
[1] Schematic Diagrams of Individual and Multiple
Systems ......................................................................22
[3] Configuring the Settings..............................................25
[4] Air bleeding operation and flow rate adjustment
operation during test run.............................................33
5. Electrical Wiring Installation.............................................51
[2] Wiring for Configuring Secondary Side Control
System........................................................................53
[3] Cable Connections......................................................54
6. Troubleshooting...............................................................60
[1] Diagnosing Problems for which No Error Codes Are
Available .....................................................................60
[3] Calling for Service.......................................................66
7. Operating the Unit ...........................................................67
[1] Initial Operation...........................................................67
[2] Daily Operation ...........................................................67
[3] Using the Remote Controller.......................................68
8. Main Specifications..........................................................80
CONTENTS
<ORIGINAL>
QAHV

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Summary of Contents for Mitsubishi Electric QAHV-N560YA-HPB

  • Page 1 <ORIGINAL> Hot Water Heat Pump Unit QAHV Installation/Operation Manual QAHV-N560YA-HPB CONTENTS Safety Precautions ..............2 1. Selecting the Installation Site ..........6 [1] Installation Conditions...........6 [2] Installation Space Requirements ........7 [3] System installation restrictions........9 2. Unit Installation ..............10 3. Water Pipe Installation.............11 [1] Schematic Piping Diagram and Piping System Components ...............11...

  • Page 2: Safety Precautions

    Indicates a risk of injury or structural damage IMPORTANT Indicates a risk of damage to the unit or other components in the system All electric work must be performed by personnel certified by Mitsubishi Electric. General WARNING To reduce the risk of burns or frost bites, do not touch the...
  • Page 3 To reduce the risk of injury, do not sit, stand, or place objects To prevent environmental pollution, dispose of brine in on the unit. the unit and cleaning solutions according to the local regulations. Do not connect the makeup water pipe directly to the It is punishable by law not to dispose of them according to the potable water pipe.
  • Page 4 Any additional parts must be installed by qualified personnel. The unit should be installed only by personnel certified Only use the parts specified by Mitsubishi Electric. by Mitsubishi Electric according to the instructions detailed in the Installation/Operation Manual. Take appropriate safety measures against wind gusts and...
  • Page 5 To reduce the risk of current leakage, overheating, smoke, or Proper grounding must be provided by a licensed fire, use properly rated cables with adequate current carrying electrician. Do not connect the grounding wire to a gas capacity. pipe, water pipe, lightning rod, or telephone wire. Improper grounding may result in electric shock, smoke, fire, Keep the unsheathed part of cables inside the terminal or malfunction due to electrical noise interference.

  • Page 6: Selecting The Installation Site

    1. Selecting the Installation Site [1] Installation Conditions Select the installation site in consultation with the client. Select a site to install the outdoor unit that meets the following conditions: • This unit is for outdoor installation only. • The unit will not be subject to heat from other heat sources. •...

  • Page 7: Installation Space Requirements

    [2] Installation Space Requirements Provide sufficient space around the unit for effective operation, efficient air movement, and ease of access for maintenance. <1> Single unit installation (1) When all walls are within their height limits*. [mm] ≤ 500 * Height limit Front/Right/Left Same height or lower than the overall height of the unit Rear...
  • Page 8 <2> Multiple unit installation When installing multiple units, make sure to take into consideration factors such as providing enough space for people to pass through, ample space between blocks of units, and sufficient space for airflow. (The areas marked with Ⓐ in the figures below must be left open.) In the same way as with the single unit installation, add the dimension that exceeds the height limit (shown as "h1"...

  • Page 9: System Installation Restrictions

    (3) Combination of face-to-face and side-by-side installations When there are walls in the front and rear of When there are two walls in an L-shape the block of units Unit height Ⓐ h2’ Ⓐ Ⓐ L2’ Ⓐ Required minimum distance [mm] Required minimum distance [mm] L2 (Right) L3 (Right/Left)

  • Page 10: Unit Installation

    2. Unit Installation Units should be installed only by personnel certified by Mitsubishi Electric. • Securely fix the unit with bolts to keep the unit from falling down during earthquakes or due to strong winds. • Install the unit on a foundation made of concrete or iron.

  • Page 11: Water Pipe Installation

    3. Water Pipe Installation [1] Schematic Piping Diagram and Piping System Components indicates the direction of the water flow. Heat pump unit ② ③ ⑧ ④ To storage tank ① ⑤ Ｔ Ｐ ⑨ ⑥ Ｔ Ｐ From storage tank ②...
  • Page 12 * 3-way valve installation Please connect 3-way valve on the lower part of the storage tank except when the unit is in operation. Anti- freezing operation will keep the water in the tank circulated and water storage tanks can become thermally stratified.

  • Page 13: Notes On Pipe Corrosion

    [2] Notes on Pipe Corrosion Water treatment and water quality control Poor-quality circulating water can cause the water-side heat exchanger to scale up or corrode, 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 14: Water Pipe Hole Size And Location

    [3] Water Pipe Hole Size and Location Hot water outlet (Bronze Rc3/4, female screw) Service panel Water inlet (Bronze Rc3/4, female screw) Front view Side view [4] Pipe gradient and air venting valve (Outlet hot water pipe) During the hot water storage operation, the air dissolved in the water is discharged in the form of bubbling from the outlet hot water pipe to quickly raise low-temperature water to the required temperature.

  • Page 15: Secondary Side Control System

    [6] Secondary side control system When employing an indirect heat exchanger system using a separately sold Q-1SCK, be careful with regard to the following points. Install the Q-1SCK (flow sensor and temperature sensor) in the secondary side circuit as shown below to perform control.
  • Page 16 Component Application Remarks and notes on selecting and installing components Improves the workability of cleaning the heat Install these components in the two places of the chilled water passage section Valve exchanger and and the high temperature water passage section to enable replacement. replacing parts.
  • Page 17 Step 3 Determination of specifications of the heat exchanger Determine the model of heat exchanger and number of plates in consultation with the heat exchanger manufacturer based on the above requirements. * To determine the number of plates, calculate the number of plates while referring to the example below. Values to use when determining the number of plates: 1 Overall heat transfer coefficient of corresponding heat exchanger 2 Heat transfer area per plate...
  • Page 18 3 Configuration method and selection criteria of flow rate adjustment device In this system, a flow rate adjustment device is installed in the secondary side circuit to perform secondary side flow rate adjustment control by outputting 0 to 10 V from the unit. * 10-V power supply is not supplied.
  • Page 19 2. System using a two-way valve Overview of system ON/OFF signal This system has a pump provided at the outlet of the tank and a two-way valve provided downstream of 0 to 10 V output the pump, and adjusts the flow rate by controlling the opening and closing of the two-way valve.
  • Page 20 Also, take measures so that the piping will not freeze. Installation indoors Installation outdoors Secondary side thermistor QAHV-N560YA-HPB Storage tank Secondary side heat exchanger Secondary side pump...
  • Page 21 4 When connecting multiple units To connect multiple units, configure one secondary side circuit system for each unit as shown in the figure below. (Install a heat exchanger, flow sensor, and thermistor for each unit.) Storage tank Storage tank QAHV- QAHV- N560YA-HPB N560YA-HPB...

  • Page 22: System Configurations

    4. System Configurations Test run procedural flow 1. System startup (*) Configure the settings needed for the local system. Refer to page 23 for details. 2. Air bleeding operation Operate the unit’s pump to perform the air bleeding operation. Refer to page 33 for details. 3.

  • Page 23: Switch Types And The Factory Settings

    [2] Switch Types and the Factory Settings (1) Switch names and functions Discharge air outlet Control box Service panel Intake air inlet Water outlet Water inlet There are four main ways to set the settings as follows: 1Dip switches (SW1 - SW3) 2Dip switches used in combination with the push switches 3Rotary switches 4Slide switches...
  • Page 24 (2) Factory Switch Settings (Dip switch settings table) Factory setting Setting Function Usage MAIN circuit OFF setting ON setting timing Depends on Model setting Leave the setting as it is. At a reset the unit 6 Test run 1 Operation during test run Any time 7 Not used Leave the setting as it is.

  • Page 25: Configuring The Settings

    [3] Configuring the Settings The settings must be set only by a qualified personnel. <1> 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.
  • Page 26 (2) Table of settings items Set the dip switches SW2 and SW3 as shown in the table below to set the value for the items in the "Setting item" column. Dip switch Item Lower Initial Setting Setting item Unit Upper limit settings code limit...
  • Page 27 (3) System configuration procedures: Individual system 1. Set the dip switches on the MAIN circuit board. Set the dip switches (labeled A in the figure at right) that correspond to the local system. Refer to “Factory Switch Settings (Dip switch settings table)” (page 24) for further details.
  • Page 28 3. Set the preset values with the switches on the circuit board. (1) Set the dip switches SW2 and SW3 by following the procedure in page 49. (Set the dip switches 3-8, 3-9, and 3-10 to ON.) * [EEEE] will disappear, and an item code ([101]) will appear on LED1 (labeled B in the figure at right).
  • Page 29 (4) System configuration procedures : Multiple system 1. Set the dip switches and rotary switches. (Switches on the main unit* AND on all sub units) System configuration diagram Unit (MAIN circuit) Unit (MAIN circuit) Unit (MAIN circuit) External water temperature sensor Main unit Sub unit...
  • Page 30 2. Switch on the power to the unit. Check for loose or incorrect wiring, and then Main unit Sub unit switch on the power to all units. When the power is switched on, the following codes will appear on the LED: •...
  • Page 31 4. Perform an initial setup on the unit (1) Set the sub unit rotary switch SWU3 on the unit (labeled A in the figure Main unit at right) to "F." [EEEE] will appear in LED1 (labeled B in the figure at right). *1 (2) Press and hold the sub unit push switch (SWP3) (labeled C in the figure at right) for one second or longer.
  • Page 32 (5) Re-initializing the system When the settings for the items below have been changed, the system will require re-initialization. • Dip switch SW2-9 (multiple unit control) • External signal input setting: Item codes [105], [106], [107], [110], [111], [112], [121], and [1214] •...

  • Page 33: Air Bleeding Operation And Flow Rate Adjustment Operation During Test Run

    [4] Air bleeding operation and flow rate adjustment operation during test run (1)Air bleeding operation Check there is no water leakage during operation. For each circuit, perform at least three sets of at least 5 minutes in duration. During the air bleeding operation, use the method below (*1) to display the water flow rate during operation and check it is stable (no air entrainment).
  • Page 34 (*1) Water flow rate display method 1Set the PCB DIP switches as shown below. 2If the flow rate adjustment operation has never been performed, ‘ng’ appears on the PCB’s digital display after the system startup operation. Press SWP1 (up) or SWP2 (down) to delete the ‘ng’ from the PCB’s digital display (changing the display to a value such as 1).
  • Page 35 (2)Water flow rate adjustment operation (when the secondary side control is disabled) Step Contents Operation and check points Supplemental explanation Check the water level is neither at the full or Water is supplied even when the target water level Water level check empty level.
  • Page 36 3Press SWP1 or SWP2 to display the operation result (flow rate characteristic) corresponding each flow rate code ‘dxx’ in Table 1 and write them down. Table 1 Close <------------------ Water flow rate adjust valve opening ------------------> Open Pump output opening/water flow rate 1600 1400 1200...
  • Page 37 (3)Water flow rate adjustment operation (when the secondary side control is enabled) Step Contents Operation and check points Supplemental explanation Check the water level is neither at the full or Water is supplied even when the target Water level check empty level.
  • Page 38 Table 1 Primary side circuit flow rate map Close Water flow rate adjust valve opening Open <------------------ ------------------> Pump output opening/water flow rate 1600 1400 1200 1000 adjust valve opening Flow rate (pump output opening 16%) Flow rate (pump output opening 27%) Flow rate (pump output opening 100%) (Check result) Close...
  • Page 39 (Note 1) Change SW2-9 and SW2-3 as a stopgap procedure as shown in the table below, and then turn the power on. Multiple unit change-over switch Local/internal change-over switch SW2-9 SW2-3 When startup operation has not completed When startup operation has completed (Note 2) The table below shows the water flow rate adjustment operation status in 4 figures when the PCB DIP switch is set as shown in Note 3.
  • Page 40 (1) Sensor method settings Step 0 Set SWS1 to OFF from the remote controller or with the local switch. Settings cannot be changed unless the ON/OFF switch is set to OFF. Set the ON/OFF switch (SWS1) to OFF. Step 1 Set the dip switches on the circuit board as follows before making the settings for the items described in this section.
  • Page 41 (2) Three-sensor method or six-sensor method setting Use the separately sold thermistor (TW-TH16E) to control the water temperature in the storage tank. Setting procedures Step 0 Set SWS1 to OFF from the remote controller or with the local switch. Settings cannot be changed unless the ON/OFF setting is set to OFF. * Set the ON/OFF switch (SWS1) to OFF.
  • Page 42 Usage example Operation example (Three-sensor method - when a remote controller PAR-W31MAA is used) Operation mode: Mode 1 Mode 1 Thermo-ON thermistor selection (Item code 1500): 1 Mode 1 Thermo-OFF thermistor selection (Item code 1501): 3 TH15 temperature < (Set water temperature - Mode 1 Thermo differential value [Code: 1508]) Unit operation start...
  • Page 43 Referring to the figure below, configure the settings for each unit according to the system. PAR-W31 Item code Address 1214 M-NET cable * SW2-9: ON (When multiple units are connected) Storage tank Three-sensor method PAR-W31 AE-200 Item code Address 105 106 107 111 1214 M-NET cable * SW2-9: ON (When multiple units are connected)
  • Page 44 (3) Setting the outlet hot water temperature 1 Selecting the outlet hot water temperature setting method Select one of the following three outlet hot water temperature setting methods. Setting procedures Step 0 Set SWS1 to OFF from the remote controller or with the local switch. Settings cannot be changed unless the ON/OFF setting is set to OFF.
  • Page 45 2 Outlet hot water temperature setting method from PCB Setting procedures Step 0 Set SWS1 to OFF from the remote controller or with the local switch. Settings cannot be changed unless the ON/OFF setting is set to OFF. * Set the ON/OFF switch (SWS1) to OFF.
  • Page 46 4Settings using Analog input Remote water temperature setting input signal type Analog input type can be selected from the following four types: "0": 4-20 mA "1": 0-10 V "2": 1-5 V "3": 2-10 V Select item code 1075 to set the type of analog input signal to be used to set the water temperature from a remote location.
  • Page 47 Setting the water temperature using analog signal input Select the analog input format • When the water temperature setting input signal type is set to 0 (4-20 mA) • External analog input signal of between 5.9 and 18.3 mA: the preset temperature will be linearly interpolated. Preset temperature = (B - A) * (Input current - 5.9 mA) / 12.4 mA + A Change of 0.12 mA or less is not recognized.
  • Page 48 (4) Scheduled operation Configure the schedule settings using a remote controller (PAR-W31MAA) or a system controller (AE-200). (5) Peak-demand control operation Peak-demand control is a function used to control the power consumptions of the units during peak-demand hours. The number of units in operation and the compressor's maximum operating frequency will be controlled according to the peak-demand control signal.
  • Page 49 (6) Setting the total number of units for a multiple system Step 0 Set SWS1 to OFF from the remote controller or with the local switch. Settings cannot be changed unless the ON/OFF switch is set to OFF. Set the ON/OFF switch (SWS1) to OFF.
  • Page 50 (7) Selecting the item that normally appears on the LED Display content Displays the operation mode.(*1) Displays the operation mode.(*2) Displays the current water temperature. Displays the water-temperature setting. Displays the high and low refrigerant pressures. (*1) The dot lights up when the operation signal is on. The dot lights off when the operation signal is off.

  • Page 51: Electrical Wiring Installation

    Branch Ground Capacity Fuse QAHV-N560YA-HPB 63 A 100 mA 0.1 sec. or less 0.21 Ω 1. Use a dedicated power supply for each unit. Ensure that each unit is wired individually. 2. When installing wiring, consider ambient conditions (e.g., temperature, sunlight, rain).
  • Page 52 Control cable specifications Size 0.3 - 1.25 mm² (Max. 200 m total)*2 Remote controller cable Recommended cable types Size Min. 1.25 mm² (Max. 120 m total) M-NET cable between units Recommended cable types Shielded cable CVVS, CPEVS or MVVS External input wire size Min.

  • Page 53: System

    [2] Wiring for Configuring Secondary Side Control System To configure a secondary side control system, you need to connect the wiring of the following three devices from the secondary side water circuit to the primary side unit. 1 Flow sensor 2 Secondary side thermistor 3 Pump + flow rate adjustment device (three-way valve, two-way valve, or inverter)

  • Page 54: Cable Connections

    [3] Cable Connections <1> Schematic Diagram of a Unit and Terminal Block Arrangement To remove the front panel of the control box, unscrew the four screws and pull the panel forward and then down. Control terminal block Cable strap Power supply terminal block Cable strap Power wire...
  • Page 55 Note: • Make sure the cables are not coming out of the rubber bushing cut. Top view Wiring Cables are coming out of the rubber bushing. Wiring Rubber bushing (oval part) Rubber bushing Wiring (oval part) Rubber bushing Top view Cross-sectional view •...
  • Page 56 5 4 3 6 5 4 3 2 5 4 3 2 5 4 3 2 3 4 5 6 7 8 9 4 3 2 1...
  • Page 58 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/connector 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 59 Control terminal block (TB4) Control terminal block (TB8) (Optional flow sensor) (No-voltage contact output) Control terminal block (TB5) (Optional thermistor Remote controller) Control terminal block (TB6) (No-voltage contact input)

  • Page 60: Troubleshooting

    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 61: Diagnosing Problems Using Error Codes

    [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 62 Error reset *3 Error Unit code *1 Cause Cause side Remote (PCB *2 Error type (PCB) (Installation/Setting error) (Parts problems) Operation M-NET) SWS1 Thermistor Discharge temp sensor (TH1) Broken or shorted thermistor wiring 5101 fault Suction temp sensor (TH2) Broken or shorted thermistor wiring 5102 Heat exchanger Broken or shorted thermistor wiring...
  • Page 63 Error reset *3 Error Unit code *1 Cause Cause side Remote (PCB *2 Error type (PCB) (Installation/Setting error) (Parts problems) Operation M-NET) SWS1 Inverter Electric IPM error • INV board fault (4250) error current • Fan board fault (4255) related •...
  • Page 64 Error reset *3 Error Unit code *1 Cause Cause side Remote (PCB *2 Error type (PCB) (Installation/Setting error) (Parts problems) Operation M-NET) SWS1 Inverter Voltage Bus voltage drop protection Momentary power failure/power failure • INV board CNDC2 wiring fault 4220 Power supply voltage drop (Inter-phase •...
  • Page 65 Error reset *3 Error Unit code *1 Cause Cause side Remote (PCB *2 Error type (PCB) (Installation/Setting error) (Parts problems) Operation M-NET) SWS1 Remote Address overlap There are two or more of the same 6830 controller address. error (incl. Non-consecutive address, system error Address setting error 7109 remote...

  • Page 66: Calling For Service

    [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 "QAHV" and is found on the lower part of the left side of the unit. (2) Serial number Example: 75W00001 (3) Error code...

  • Page 67: Operating The Unit

    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 68: Using The Remote Controller

    [3] Using the Remote Controller <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 69 <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 70 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. Set the schedule for ON/OFF, operation mode and set temperature.
  • Page 71 The pattern setting screen will be displayed. Unit1 * Refer to the section on Weekly timer for details on using the pattern setting screen. Mode1 Mode2 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 72 <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 73 To use demand control on the connected units, make the settings as shown below. (a) To use only connected unit demand control (contact input) without using Power Save on the remote controller Button operation In the Operation setting screen, press the [F1] button to move the cursor to Unit1 Power Save.
  • Page 74 Button operation From the Main menu, select "Schedule" > "Power Save" and press the [Select] Unit1 button. Weekly timer Period timer Power Save Press the [F3] button to proceed to the settings screen. Unit1 Period You can set 2 types of pattern, as necessary. * If the periods specified in 1 and 2 overlap, only period specified in 1 will be implemented.
  • Page 75 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 Anti-freeze Next <6> Function setting Function description Sets the functions for each connected unit from the remote controller as required. Refer to the Installation Manual for the connected units for details on the connected unit settings at shipment, Function No.
  • Page 76 Select "Function setting" from the Unit initial set menu, and press the [Select] Unit1 Unit initial set button. Control pattern Unit Setting Function setting Storage Monitor The Function setting screen will be displayed. Unit1 Function setting Press the [F1] or [F2] button to select the connected unit "M-NET address", M-NET address "Function No."...
  • Page 77 <7> Operation status monitoring Function description Check the function information of each unit from the remote controller Button operation Select "Running information" from the main menu screen, and press the [Select] button. Set the desired M-NET address with the [F2] and [F3] buttons, and press the [Select] button.
  • Page 78 Function setting No. Function setting Description Remarks High pressure operation data [× 0.1 MPa] Low pressure operation data [× 0.1 MPa] Outlet hot water temperature operation data [× 0.1ºC] Data of last hot water storage operation Outdoor air temperature during operation [× 0.1ºC] Total compressor operation time [×...

  • Page 79: Using The Unit In Sub-Freezing Or Snowy Conditions

    [4] Using the Unit in Sub-freezing or Snowy Conditions 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 80: Main Specifications

    8. Main Specifications SPECIFICATIONS Model QAHV-N560YA-HPB (-BS) Power source 3-phase 4-wire 380-400-415 V 50 Hz kcal/h 34400 Capacity Btu/h 136480 Power input 10.31 Current input 17.8-16.9-16.3 COP (kW/kW) 3.88 kcal/h 34400 Capacity Btu/h 136480 Power input 10.97 Current input 20.0-19.0-18.3 COP (kW/kW) 3.65...
  • Page 81 *1 Under normal heating conditions at the outdoor temperature of 16ºCDB/12ºCWB (60.8ºFDB/53.6ºFWB), the outlet water temperature of 65ºC (149ºF), and the inlet water temperature of 17ºC (62.6ºF) *2 Under normal heating conditions at the outdoor temperature of 7ºCDB/6ºCWB (44.6ºFDB/42.8ºFWB), the outlet water temperature of 65ºC (149ºF), and the inlet water temperature of 9ºC (48.2ºF) *3 Under normal heating conditions at the outdoor temperature of 7ºCDB/6ºCWB (44.6ºFDB/42.8ºFWB), the outlet water temperature of 65ºC (149ºF), and the inlet water temperature of 15ºC (59.0ºF)
  • Page 82 Spec label 0035 0035 HOT WATER HEAT PUMP HOT WATER HEAT PUMP MODEL QAHV-N560YA-HPB <G> MODEL QAHV-N560YA-HPB-BS <G> R744 6.5kg REFRIGERANT REFRIGERANT R744 6.5kg LEGAL REFRIGERATION TON 4.8RT LEGAL REFRIGERATION TON 4.8RT ALLOWABLE HP 14.0MPa (140.0bar) ALLOWABLE HP 14.0MPa (140.0bar) LP 8.5 MPa (85.0 bar)
  • Page 84 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. WT08219X05...

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