Original instructions natural refrigerant co2 heat pump water heater (62 pages)
Summary of Contents for Mitsubishi Heavy Industries ESA30EH Series
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ORIGINAL INSTRUCTIONS Air To Water Heat Pump Natural refrigerant CO Water Heater ESA30EH 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.
Contents ■ Before use …………………………………… 2 Safety Precautions ……………………………………………2 Component replacement guide for maintenance check and preventive maintenance ……………………………………… 10 Water Quality Criteria ………………………………………… 11 General description of CO heat pump water heater …………… 12 Description of functions and contents of CO heat pump water heater ………………………………………………………...
■ 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.
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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.
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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.
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■ 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.
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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.
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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.
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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.
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■ 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.
Component replacement guide for maintenance check and 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. This list shows the contents and the interval of periodical maintenance under the general usage conditions and the rough indication of the time to replace components.
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.
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.
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Operation pattern of CO heat pump water heater (for Hot Water) 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. ③...
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Operation pattern of CO2 heat pump water heater (for heating) This heat pump can be used as space heating system also. The typical operation pattern and setting items are explained with following figure. Different heating mode is available. ① Mode AUTO The heating set temperature changes automatically according to the outdoor temperature.
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Operation pattern of CO2 heat pump water heater (for combination use) This heat pump can be connected to the space heating system and hot water storage tank at the same time. The typical operation pattern and setting are explained with following figure. Setting in case of HW &...
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. Reference Setting and display item Contents page The heat pump unit can be started operation.
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Reference Setting and display item Contents page Display of Display contents on RC operation mode · Now stopping The heat pump unit is stopping The heat pump unit does not start operation · It makes a Pause by The heat pump unit is stopping by operating [Run/Pause] switch Run/Pause, switch or by the “Day off”...
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Reference Setting and display item Contents page Administrator Enable/Disable setting Permission/Prohibition setting of each operation can be set Page 53 HP unit selection The heat pump unit to be displayed on RC can be selected. settings Page 53 If not selected, RC select a heat pump unit automatically. RC display setting •RC name and HP unit name can be registered.
Names and functions of sections on the R/C 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 ①Run/Pause, ②Schedule setting and ③Operation to fill up switches.
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■ TOP screen All icons are shown for explanation. ① Clock, RC name and display ② Icon display ③ Menu button ④ Heating TOP ⑤ HW TOP screen screen button button ⑥ Message display section ① Clock, RC name and display Display the current time ( ☞...
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■ HW TOP screen All icons are shown for explanation. ① Clock, RC name and display ② Icon display ③ Top button ④ HW temp setting button ⑤ HW amount display and set ⑥ Display HW button amount ⑦ Message display ①...
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■ Heating TOP screen All icons are shown for explanation. ① Clock, RC name display ② Icon display ③ Top button ④ Heating ON/ OFF button ⑤ Heating Set Temperature button ⑥ Message display section ① Clock, RC name and display Display the current time ( ☞...
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Screen flow Top screen Run/Pause switch ………………………………………… Refer to Page 27 Schedule setting switch ………………………………………… Refer to Page 32 Setting of weekly schedule (HW) …… Refer to Page 34 Setting of weekly schedule (heating) … Refer to Page 35 Setting of day off ……………………… Refer to Page 37 Setting of peak-cut ……………………...
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Main menu ………………………………………… Refer to Page 52 Administrator settings Enable/Disable setting………………… Refer to Page 53 HP unit selection ……………………… Refer to Page 53 RC display setting …………………… Refer to Page 54 Step size of HW temp ………………… Refer to Page 58 Administrator password setting ………...
■ 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.
Space heating operation method The heat pump unit is operated according to the setting of [Heating temp]. Two heating mode can be selected. [AUTO] The heating temperature is automatically adapted to the outdoor temperature. If the outdoor temperature increases, the heating temperature automatically decreases. In heating operation AUTO, the heating temperature can be adjusted by setting the shift temperature.
How to Run/Pause When push Run/Pause button during pausing, the [Operation acknowledge] screen is displayed. When tapping Run , 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.
How to go to TOP screen To go to HW TOP screen Tap the HW TOP button on the TOP screen. HW TOP screen is displayed. To go to heating TOP screen Tap the Heating TOP button on the TOP screen. Heating TOP screen is displayed.
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 HW TOP screen. T he menu screen of the [Setting of HW temp] is displayed. Tap the desired item.
How to start heating operation The heating operation can be set as follows T ap the Heating ON/OFF button on the Heating TOP screen. Heating ON/OFF screen is displayed. W hen tapping ON , the heating operation starts. When tapping OFF, heating operation stops.
How to set Heating temperature The heating temperature can be set as follows. T ap the Heating Set temp button on the Heating TOP screen. Heating set temp screen is displayed. Tap AUTO or MANUAL to select the heating mode. In AUTO mode, the shift temperature can be set.
Schedule setting The operation schedule of the heat pump unit can be set. The setting of weekly schedule, 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. The summary of each menu item is as follows ①...
How to set weekly schedule The target HW amount at each time zone for each day, or heating mode and heating temperature can be set. Push the Schedule setting switch on the panel. The menu screen of [Setting of schedule] is displayed. Tap the [Set weekly schedule] Notice: If the application “Heating”...
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■ weekly schedule (HW) 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 ( ☞...
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■ weekly schedule (heating) 10 . The [Checking of weekly schedule] 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 ( ☞...
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■ Checking of weekly schedule 14 . [Checking of weekly schedule] 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 15) ②...
How to set day off The day off for ①Every week ②Specific period of time ③Specific 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. The menu screen of [Setting of schedule] is displayed.
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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 ( ☞...
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 [Setting 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.
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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 ( ☞...
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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 ( ☞...
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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. ■...
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 weekly schedule] can be increased or decreased uniformly. Tap HW amount button on the HW TOP screen.
Display hot water amount Today’s hot water amount is displayed on the HW TOP screen. And the storage amount of hot water by connected each heat pump unit from yesterday up to now can be checked. The hot water amount per hour is displayed at the [HW amount] display section on the HW TOP screen.
■ 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.
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.
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. If the administrator password is unknown or wrong, the setting cannot be changed.
■ 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 48 ②...
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■ 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] .....
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■ 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 5-sec to 90 sec at 5-sec intervals). ON …… When tapping the LCD, Backlight is lit on. If no operation is done during the set time period, Backlight is lit off automatically.
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■ How to set summer time When tapping [Summer time] on the [Initial setting] menu screen, [summer setting] screen is displayed. Please set Enable/Disable of summer time. Enable …… If it is changed from Disable to Enable, 1H is added to current clock. Disable ……...
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 40) Since the [Administrator settings] menu screen is displayed, please tap your desired item. ①...
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■ How to set limited operation When tapping the [Enable/Disable setting] on the [Administrator settings] menu screen, the [Enable/ Disable setting] menu is displayed. Select the following operation items from this menu, and setting of [Operation permission] or [Operation prohibition] is available.
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■ 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 ( ☞...
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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 ( ☞ Go to 2), enter letters. The name of HP unit can be entered up to 4 2-byte (8 1-byte9 letters.
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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.
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. Change the design of graph showing the amount of stored hot water. The design of graph can be selected from the following three types. Usual … Black background for 22 – 8 hours, white background for the rest Set1 …White background for all, regardless of time Set2 …Black background for all, regardless of time [Display example] −57−...
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■ 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. Please tap a desired step size.
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■ How to set the User environment (HW) 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.
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When tapping [User setting] on the [User environment] menu screen, [User setting] screen is displayed. Save ……Current operation pattern (HW) will be saved as the selected user setting. Load……Current operation pattern (HW) will be overwritten by the selected user setting. When tapping SAVE or LOAD on the [user setting] screen, [user setting] acknowledge screen is displayed.
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■ How to change the operation lamp setting Timing to change the operation lamp color to green (yellow green) can be changed. Note Timing to change the operation lamp color to red (orange) cannot be changed. (The red lamp lights only when any error occurs.) When tapping the [Operation lamp setting] on the [administrator setting] menu screen, the [Operation...
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. Set the upper limit setting of HW temp by tapping ▲ ▼ buttons and tap Set button. . The TOP screen is displayed, when tapping Set button ■ The HW temp can be set at 5°C intervals. HW temp setting range: From 70 to 90°C (Factory default: 90°C) ■...
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■ How to change application setting If the use of the HP unit is changed, the application setting can be changed. When tapping the [Application setting] on the [administrator setting] menu screen, the [Application setting] menu screen is displayed. HW …When HP unit is connected to hot water circuit. Heating …...
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.
■ For maintenance Maintenance of remote control, heat pump unit and hot water storage unit, and components for space heating ■ 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.
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.
■ 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.
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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.
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■ 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 Stay off Normal...
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■ 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...
■ 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.
■ 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.
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■ Select the language Select the language to be displayed on the R/C. Tap the Menu button on the TOP screen. . Tap the “Select the language” on the main menu screen. . When the Input password screen is displayed, enter the administrator password.
Operation data State of units (max. 16 units) connected to the remote controller can be checked. Status list of connected units and operation status of each unit can be checked. Touch the unit of which operation status is checked. ・ P resent time, operation mode, setting temperature and unit operation status (ON/OFF, error stop display) are displayed.
■ Specifications Model ESA30EH-25 Items Power source − 3-phase 380V±5%,400V±5%, 415V±5%, 50/60Hz Heating capacity Operation to top up Water amount L/min 8.97 <In intermediate season> Power consumption 6.98 ※2 − Heating capacity Water amount L/min 5.06 Operation to top up ※2 <In cold region>...
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5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom MHIAE SERVICES B.V. (Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.) Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands Note : About the detail of Conformity model, see EU DECLARATION OF CONFORMITY sheet included in a package −77−...
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5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom Tel : +44-333-207-4072 Fax : +44-333-207-4089 http ://www.mhiae.com/ MHIAE SERVICES B.V. (Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.) Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands P.O.Box 23393 1100 DW Amsterdam, Netherlands Tel : +31-20-406-4535 http ://www.mhiaeservices.com/...
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