Mitsubishi Heavy Industries ESA30E series User Manual
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Mitsubishi Heavy Industries ESA30E series User Manual

Mitsubishi Heavy Industries ESA30E series User Manual

Original instructions natural refrigerant co2 heat pump water heater
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USER'S MANUAL
MITSUBISHI HEAVY INDUSTRIES, LTD.
Natural refrigerant CO
Heat Pump Water Heater ESA30E series
Thank you very much for your purchasing the heat pump water heater for com-
mercial use.
This user's manual describes cautions for safety. Please read this manual carefully before use in order to
operate the unit properly.
Keep this manual, after reading, at a safe place where you can consult it whenever it is necessary.
When the ownership of the unit is changed, please be sure to transfer this manual and the "Installation
Manual" to a new owner.
It is not recommended for a user to install or move the unit by the user's own discretion. (Safety or functions
may not be assured.)
The emission sound pressure level from the heat pump unit is under 70dB (A).
2
ORIGINAL INSTRUCTIONS
PJZ012A093A

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Summary of Contents for Mitsubishi Heavy Industries ESA30E series

  • Page 1 ORIGINAL INSTRUCTIONS MITSUBISHI HEAVY INDUSTRIES, LTD. Natural refrigerant CO Heat Pump Water Heater ESA30E series Thank you very much for your purchasing the heat pump water heater for com- mercial use. This user’s manual describes cautions for safety. Please read this manual carefully before use in order to operate the unit properly.
  • Page 2 −2−...

  • Page 3: Table Of Contents

    Contents Before use …………………………… Safety precaution ……………………………… Component replacement guide for maintenance check and preventive maintenance …………… Water quality criteria…………………………… General description of CO heat pump water heater … Description of functions and contents of CO heat pump water heater … Names and functions of sections on the R/C …...

  • Page 4: Before Use

    ■ Before use Safety Precautions ● P lease read the precautions written here carefully to operate the unit properly. You are required to observe these fully because every item of these instructions is important for safety. Failure to follow these instructions may result in WARNING serious consequences such as death, severe injury, etc.
  • Page 5 WARNING Consider measures not to exceed the critical concentration of refrigerant in the event of leakage especially when the unit is installed in a small room. Regarding the measure not to exceed the critical concentration, please consult with our dealer. If the refrigerant leaks and exceeds the critical concentration, it may cause oxygen deficiency accident.
  • Page 6 WARNING Grounding work shall be done securely. Do not connect the grounding wire to a gas pipe, a water pipe, a lightening rod or a earth wire of telephone Improper grounding may cause, malfunction or electric shocks at electric leak. The earth leakage breaker should be installed If the earth leakage breaker is not installed, it may cause electric shocks.
  • Page 7 ■ Precautions for usage WARNING Avoid using combustible substances (hair spray, insecticide, etc) near the unit. Do not use benzene or paint thinner to clean the unit. It could cause cracks, electric shocks or fire. Stop operation under abnormal situation. If continued, it could result in break-down, electric shocks, fire, etc.
  • Page 8 CAUTION Do not wash the remote control with water or liquid. It could cause electric shocks, fire or break-down. Do not touch electric parts or operate buttons or screens with wet hands. It could cause electric shocks, fire or break-down. Be sure to stop operation and shut down the circuit breaker before starting maintenance work.

  • Page 9: Remote Control

    CAUTION Do not touch the aluminum fin of the heat exchanger with bare hands If touching, it may cause injury. Do not use benzene, paint thinner, wipes etc. to clean the remote control. It could discolor or break-down the remote control. Wipe it with a piece of cloth which is squeezed tightly after wetting with diluted neutral detergent.
  • Page 10 CAUTION Use clean water conform to the water quality criteria. (Refer to the criteria in page 7) Deterioration of water quality may cause malfunction of the unit and water leak. If a solid body, discolored water, impurity or unusual order is found, please ask inspection.
  • Page 11 ■ Precautions for relocation or maintenance WARNING Consult your dealer when moving, disassembling or repairing the unit. Never modify the unit. Improper handling may result in injury, electric shocks, fire, etc. If the unit is submerged due to the natural disaster such as flooding or typhoon, please consult with the dealer where you purchased.
  • Page 12 ■ Before use Please implement a periodical maintenance check and a component replacement from a view point of preventive maintenance In order to maintain the safety and the function of the product, we would like to ask all customers owing this product to have a periodical maintenance and to replace components by our authorized servicing company.

  • Page 13: Water Quality Criteria

    Water Quality Criteria Makeup water and cyclic water shall be the water within the range of water quality criteria mentioned below. If water quality is out of the range of criteria, it may cause a trouble such as scale adhesion and corrosion.
  • Page 14 ■ Before use General description of CO heat pump water heater Composition of CO heat pump water heater This heat pump water heater for commercial use is a heat pump water hater that is composed of a heat pump unit with natural refrigerant such as CO which can produce hot sanitary water with heat pump technology and a hot water storage unit which can store hot water.
  • Page 15 Operation pattern of CO heat pump water heater This heat pump water heater is operated with the target hot water amount set at each set time The typical operation pattern and setting items are explained with following figure. In Pause by peak-cut timer Set hot water amount at each time Actual hot water amount...

  • Page 16: Description Of Functions And Contents Of Co

    ■ Before use Description of functions and contents of CO heat pump water heater The following settings can be done with this remote control. Regarding the detailed setting methods, please check each function mentioning in reference page. Setting and display item Contents Reference page The heat pump unit can be started operation.
  • Page 17 Setting and display item Contents Reference page · In operation for Display of The defrost operation is ongoing. defrosting operation mode · In operation for Peak-cut rate is set. Page 35 peak-cut · Standby It makes the heat pump unit standby for starting operation. Initial settings Clock setting Current time and date can be set or corrected...

  • Page 18: Names And Functions Of Sections On The R/C

    ■ Before use Names and functions of sections on the R/C (Operating section) ⑤ LCD display (With backlight) ③ switch ④ Operation lamp ① switch ② switch Touch panel system, which is operated by tapping the LCD screen with a finger, is employed for any operations other than the ①...
  • Page 19 Names and functions of sections on R/C (Display) * All icons are shown for explanation. ① Clock, RC name display ② Icon display ③ Menu button TOP screen ④ HW temp ⑥ Usage of HW setting button amount button ⑤ HW amount display button (Set More or Less) ⑦...

  • Page 20: Screen Flow

    ■ Before use Screen flow Top screen Run/Pause switch …………………………………… Refer to Page 21 Schedule setting switch …………………………………… Refer to Page 23 Setting of weekly operation pattern …… Refer to Page 24 Setting of day off ………………… Refer to Page 27 Setting of peak-cut ………………...
  • Page 21 Main menu Installation setting Installation date …………… As for setting method, please Company information ……… refer to the installation manual. Test run ……………………… RC function settings Main/Sub of RC …………… As for setting method, please External input ……………… refer to the installation manual.

  • Page 22: Operation Method Of Basic Operation

    ■ Operation method of basic operation Hot water operation method The heat pump unit is operated according to the setting of [Hot water temp], [Target hot water amount at each time zone] and [Hot water amount] set with remote control. [Explanation of hot water operation method] If the current HW amount is less than the target HW amount at current time zone, the heat pump unit is operated to top up.

  • Page 23: How To Run/Pause

    How to Run/Pause When push Run/Pause button during pausing, the [Operation acknowledge] screen is displayed. When tapping Yes , it starts operation. ■ If the current HW amount is less than the target HW amount, the heat pump unit start operation to top up. Pause When push Run/Pause button during operating, the [Pause acknowledge] screen is displayed.

  • Page 24: Setting Of Hw Temp For The Operation To Top Up

    ■ Operation method of basic operation Setting of HW temp for the operation to top up The HW temp for the operation to top up can be set as follows.  T ap the HW temp button on the TOP screen.  T he menu screen of the [Setting of HW temp] is displayed.

  • Page 25: Schedule Setting

    Schedule setting The operation schedule of the heat pump unit can be set. The setting of target HW amount at each time zone, the setting of day off and setting of peak-cut can be set. Push the Schedule setting switch on the panel. The menu screen of [Setting of schedule] is displayed.

  • Page 26: How To Set Operation Pattern

    ■ Operation method of basic operation How to set operation pattern The target HW amount at each time zone for each day can be set. Push the Schedule setting switch on the panel. The menu screen of [Setting of schedule] is displayed. Tap the [Setting of weekly operation pattern] The selection screen of [Weekly timer] is displayed.
  • Page 27 The [Checking of operation pattern] screen is displayed. When changing the setting contents, ① select the column of the setting No. to be changed ② and tap Change button. ■ The setting contents displayed at first may differ depending on the set day selected ( ☞...
  • Page 28 ■ Operation method of basic operation [Checking of operation pattern] screen is displayed When saving the setting, tap Set button. ① In case of setting all It shifts to the [Set all contents acknowledge] screen ( ☞ Go to 10) ②...

  • Page 29: How To Set Day Off

    How to set day off The day off for ① Every week ② Specific period of time ③ Specific day can be set. If the day set day off, the operation to top up on that day is not done. Push the Schedule setting switch on the panel.
  • Page 30 ■ Operation method of basic operation Set the [Starting day]. ▲ ▼ Set the dd/mm/yy by tapping buttons. After setting the date, tap Set button. Set the [Ending day]. ▲ ▼ Set the dd/mm/yy by tapping buttons. After setting the date, tap Set button. The [Checking of set contents] screen is displayed ( ☞...

  • Page 31: How To Set Peak-Cut

    How to set peak-cut Peak-cut on weekly basis can be set Push the Schedule setting switch on the panel. The menu screen of [Seting of schedule] is displayed. Tap the [Setting of peak-cut] The selection screen of [Peak-cut timer] is displayed. Tap the item of setting day.
  • Page 32 ■ Operation method of basic operation The [Checking of current set contents] screen is displayed. When changing or adding the setting contents, ① select the column of the setting No. to be changed ② and tap Change button. ■ The setting contents displayed may differ depending on the set day selected ( ☞...
  • Page 33 Set the [Peak-cut %]. ▲ ▼ Set the [Peak-cut %] by tapping buttons. The [Peak-cut %] can be set at 10%, 40%, 60% and 80%. After setting the [Peak-cut %], tap Set button. ( ☞ Go to 11) The [Checking of set contents] screen is displayed ( ☞...

  • Page 34: How To Check Operation Pattern

    ■ Operation method of basic operation How to check operation pattern The current operation pattern can be checked Push the Schedule setting switch on the panel.  T he menu screen of [Setting of schedule] is displayed. Tap the [Checking of peration pattern] Tap the day to be set on the display.

  • Page 35: How To Do The [Operation To Fill Up]

    How to do the [Operation to fill up] Until the hot water amount becomes 100%, the heat pump units are operated. Start operation When pushing Operation to fill up switch, the [Acknowledge for operation to fill up] screen is displayed. ■...

  • Page 36: How To Set To Increase Or Decrease The

    ■ Operation method of basic operation How to set to increase or decrease the hot water amount uniformly In case that the usage amount of hot water may vary depending on the season or the day of a week,the hot water amount set by [Setting of operation pattern] can be increased or decreased uniformly. Tap HW amount button on the TOP screen.

  • Page 37: Display Usage Of Hot Water Amount

    Display usage of hot water amount Today’s usage of hot water amount is displayed on the TOP screen. And the storage amount of hot water by connected each heat pump unit from yesterday up to now can be checked. The usage of hot water amount per hour is displayed at the [Usage of HW amount] display section on the TOP screen.

  • Page 38: Operation Method Of Menu Manipulation

    ■ Operation method for menu manipulation Limited items for Sub remote control When controlling one heat pump unit with two remote controls, following settings cannot be done with Sub remote control. Please set them with Main remote control. In case of setting with Sub remote control, the icon displayed on the TOP screen.

  • Page 39: How To Operate On The Menu Screen

    How to operate on the menu screen Tap Menu button on the TOP screen The [Main menu] screen is displayed. When tapping the desired menu item, the setting screen for each item is displayed. If there are multiple pages, the Next button on the first page and the Previous button on the last page are displayed.

  • Page 40: Notabilia For Each Setting Screen

    ■ Operation method for menu manipulation How to operate on the menu screen  R egarding the item mentioning Administrator password in the user’s manual, when selecting such item, the [Input Administrator password] screen is displayed. Enter the administrator password (4 digits number) and tap Set button.
  • Page 41 ■ Operation method for various settings How to set [Initial settings] Tap the [Initial settings] on the main menu screen. The menu screen of [Initial settings] is displayed, tap the desired item. ① Clock setting … Go to Page 39 ②...
  • Page 42 ■ How to set date and time display When tapping [Date and time display] on the [Initial settings] menu screen, the [Date and time display] screen is displayed. Set date and time display [Hide] or [Display]. Set a day of the week [Hide] or [Display]. Set the display method Set [12H]....

  • Page 43: Operation Method Of Various Settings

    ■ Operation method of various setting ■ How to set backlight When tapping [Backlight] on the [Initial settings] menu screen, the [Backlight] setting screen is displayed. Please set ON/OFF of Backlight and its lighting time (From 5sec to 90 sec at 5-sec intervals). ON ……...

  • Page 44: How To Set Administrator Settings

    How to set Administrator settings Tap the [Administrator settings] on the main menu screen. Since Administrator [Input password] screen is displayed enter the Administrator password ( ☞ Go to Page 38) Since the [Administrator settings] menu screen is displayed, please tap your desired item. ①...
  • Page 45 ■ Operation method of various setting ■ How to set night tariff Regarding the power consumption for day time and for night time displayed on the [More information] screen, the time zone to integrate power consumption can be changed. When tapping the [Night tariff setting] on the [Administrator settings] menu screen, the [Night tariff setting] screen is displayed.
  • Page 46 ■ How to set remote control display The display contents of remote control can be set When tapping the [RC display setting] on the [Administrator settings] menu screen, the [RC display setting] menu screen is displayed. ① Name of RC …Set the name of RC ( ☞...
  • Page 47 ■ Operation method of various setting Set the name of HP unit to be added to the HP unit No. button. Tap the HP unit No. button to which the name is set. When the letter selection screen is displayed same as at the setting of the name of RC ( ☞...
  • Page 48 Set the icon for the [Status of HW amount] to be displayed or not. If the hot water amount does not reach to the set amount, the icon for the [Status of HW amount] is displayed. Display… If the hot water amount does not reach to the set amount, the icon [ ] is displayed on RC.
  • Page 49 ■ Operation method of various setting ■ How to change the step sized of HW temp. The step size of the hot water temp can be changed. When tapping the [Step size of HW temp] on the [Administrator settings menu screen, the [Step size of HW temp] menu screen is displayed.
  • Page 50 ■ How to set the User environment By selecting the typical operation pattern of business type, the detailed operation pattern can be set easily. When tapping the [User environment] on the [Administrator settings] menu screen, the [User environment] menu screen is displayed.

  • Page 51: How To Check The Remote Control Setting

    ■ Operation method of various setting How to check the remote control setting A setting list for the current setting of remote control and heat pump unit can be checked. Tap the [Check of RC setting] on the menu screen. If multiple heat pump units are connected to the remote control, a list of all heat pump unit connected.

  • Page 52: For Maintenance

    ■ For maintenance Maintenance of remote control ● Maintenance of LCD and main body of remote control. When the surface of LCD or main body becomes dirty, wipe it with a dry soft cloth. If the dirt on the surface cannot be removed, soak the cloth in neutral detergent diluted with water, squeeze the cloth tightly, and clean the surface.

  • Page 53: Measure For Anti-Freeze Water In Winter

    ■ For maintenance Measure for anti-freezing water in winter If the ambient temperature around the unit becomes below 0°C, the water pipe may freeze and it may cause damage of the heat pump unit. Please consult with the dealer and be sure to take proper measure for anti-freezing. And if the water may freeze, please keep the power on supplying to the unit, even if the unit is pausing, because the heat pump unit may start operation for anti-freezing.

  • Page 54: When Error Happens

    ■ When error happens However, please note the following cases are not anomaly. The cases that are not anomaly Q The heat pump unit repeats Run and Stop A During hot water storage operation, if the outdoor air temp is rather low, the HP unit repeats Run and Stop due to defrost operation.
  • Page 55 ■ When error happens If error happens on the heat pump unit, [Under protection stopping] is displayed at the message display section. Please do following procedures and stop operation. And inform to the dealer where you purchased. The message of [Under protection stopping] is displayed at the message display section.
  • Page 56 ■ When error happens A list of error code Remote LED on heat pump unit 7-segment controller Contents of inspection display Error code Green Power line anomaly No display Keep flashing Stay off Normal No display Keep flashing Stay off Normal Communication error between remote controller and heat pump unit Keep flashing...
  • Page 57 A list of error code (Continue) Remote LED on heat source unit 7-segment controller Contents of inspection display Error code Green 1-time flash E61-1 Communication error between master unit and slave unit 1 Keep flashing 2-time flash E61-2 Communication error between master unit and slave unit 2 3-time flash E61-3 Communication error between master unit and slave unit 3...

  • Page 58: Contact Company

    ■ Contact company From the menu screen, the service contact can be seen. Please tap [Contact company] on the menu screen. ■ Next service date If the setting of [Next service date] was done on the [Service & Maintenance] menu, the following screen is displayed for 5sec at starting operation and for 20sec at ending operation.

  • Page 59: When The [Periodical Check] Is Displayed

    ■ When [Periodical check] is displayed When [Periodical check 1] or [Periodical check 2] is displayed In order to inform the periodical inspection period of heat pump unit, [Periodical check 1] or [Periodical check 2] may be displayed at the message section of the TOP screen. If the following display of periodical check is displayed, please ask periodical check to the contact company displayed on the [Contact company] screen or the dealer where you purchased.

  • Page 60: Specifications

    ■ Specifications Model ESA30E-25 Item Power supply 3-phase 380V ±5% / 400V ±5% / 415V ±5% 50Hz Heating capacity Water amount Liter/min 8.97 Operation to top up ＊1 (In intermediate season) Power consumption 6.98 – Heating capacity Water amount Liter/min 5.06 Operation to top up ＊2...

  • Page 61: Ec Declaration Of Conformity

    EN 60335-1 EN 60335-2-40 Authorized representative in EU : MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom Note : About the detail of Conformity model, see EC DECLARATION OF CONFORMITY sheet included in a package AIR-CONDITIONING &...
  • Page 62 AIR-CONDITIONING & REFRIGERATION DIVISION 3-1, Asahi, Nishibiwajima-cho, Kiyosu, Aichi, 452-8561, Japan http ://www.mhi.co.jp MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD. 7 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AX, United Kingdom Tel : +44-20-7025-2750 Fax : +44-20-7025-2751 http ://www.mhiae.com...

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