Mitsubishi Heavy Industries ESA30EH-25 User manual

Manual No.'19・HM-T-339
TECHNICAL MANUAL
AIR TO WATER HEAT PUMP
Q-ton
Natural refrigerant CO2water heater
Space heating edition
ESA30EH-25
updated ber 11, 2021

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CONTENTS
◦Compatibility ..................................................................................................... 2
1. GENERAL DESCRIPTION ............................................................................... 3
1.1 Mechanism of CO2 heat pump for space heating ..................................... 3
1.2 CO2heat pump for space heating: Operation chart .................................. 4
2. SPECIFICATIONS ............................................................................................. 7
2.1 Remote control ........................................................................................... 7
2.2 Heating performance charcteristics ......................................................... 14
2.3 Control ....................................................................................................... 18
2.4 Technical infromation of European regulations ....................................... 21
3. APPLICATION DATA ...................................................................................... 24
3.1 Installation work for air to water heat pump water heater ...................... 24
(1) Before installation .................................................................................. 24
(2) Installation location ................................................................................ 25
(3) Carrying in and installation of unit ......................................................... 25
(4) Water piping work .................................................................................. 25
(5) Insulation work and water proofing work unit ...................................... 25
(6) Electrical wiring work for the heat pump unit ....................................... 25
(7) Electrical wiring work for temperature control circuit .......................... 25
(8) Control setting ........................................................................................ 27
(9) Commissioning and handover ............................................................... 28
(10) Inspection report .................................................................................... 28
(11) The behavior after power recovery ....................................................... 29
3.2 Setting and operation models for space heating and configuration
of master-slave units ................................................................................ 30
3.3 External input and output ......................................................................... 32
4. Additional 7-segment display for space heating ........................................ 33
5. Option part: Modbus interface ..................................................................... 34

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◦Compatibility
Compatibility with previous models
This model has a heating function added to the previous models, and various functions have been added or changed.
Connectibility of remote control
Due to differences in communication specications, the combination of remote control and heat pump unit is limited as
shown in the table below.
Connectibility of remote control and heat pump unit
This model Previous models
ESA30EH-25 ESA30E-25
Service
code
- /F /C /B /A /1
Heating weekly timer Weekly timer for heating operation
○× × × × ×
Weekly timer with
HW temperature setting
○× × × × ×
Weekly timer ×○ ○ ○ ○ ○
User setting memory
○× × × × ×
Anti-regionella control
○ ○ × × × ×
Application setting ○× × × × ×
Priority setting
○× × × × ×
Model
OverviewFunction
Usage setting function to accompany the
added heating operation
Water heating
Space heating
General
Priority setting of space heating and water
heating function to accompany the added
heating operation
RC-Q1EH
RC-Q1E
ESA30EH-25
○
×
ESA30E-25
×
○
Heat pump unit
Remote
control
This model Previous models
ESA30EH-25 ESA30E-25
Service
code
- /F /C /B /A /1
Heating weekly timer Weekly timer for heating operation
○× × × × ×
Weekly timer with
HW temperature setting
○× × × × ×
Weekly timer ×○ ○ ○ ○ ○
User setting memory
○× × × × ×
Anti-regionella control
○ ○ × × × ×
Application setting ○× × × × ×
Priority setting
○× × × × ×
Model
OverviewFunction
Usage setting function to accompany the
added heating operation
Water heating
Space heating
General
Priority setting of space heating and water
heating function to accompany the added
heating operation
RC-Q1EH
RC-Q1E
ESA30EH-25
○
×
ESA30E-25
×
○
Heat pump unit
Remote
control

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1. GENERAL DESCRIPTION
1.1 Mechanism of CO2heat pump for space heating
heater and hot water supply sytem was enabled in NEW MODEL (ESA30-EH).
⑨
⑭
to be constant.
In combination system, heating with hot water supply at the same time is capable with ⑯switching valve TCCV3.
Addition, you can set the temperature setting and the priority of heating or hot water supply with simple operation of remote
control.
Standard space heating system diagram
(1)For the purpose of space heating only
(2)For the purpose of combination system with space heating and DHW
CV
CV
#

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1.2 CO2heat pump for space heating:Operation chart
(1) Operation pattern of CO2heat 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 gure.
Setting of hot water storage operation (Refer to the setting method in page 11.)
①Hot water temperature
Store hot water in the hot water storage unit at the hot water temperature set with remote control.
The heat reserving volume of the hot water storage unit can be increased or decreased by increasing or decreasing the
hot water temperature.
If multiple heat pump units are connected to one remote control, it is available to set the hot water temperature
individually.
②Hot water amount at each set time
Hot water amount can be set at each set time with remote control.
Set the hot water amount to meet the state of hot water usage.
③Peak-cut timer
It is available to prohibit or save operation of the heat pump unit at the designated time.
The contract amount of power can be reduced by applying peak-cut operation of heat pump unit according to the
power demand.
④Hot water amount setting
The hot water amount at each set time can be increased or decreased uniformly on the day of a week basis.
In case that the usage amount of hot water may vary depending on the season or the day of a week, please use this
function.
Ex. 1 In summer: More In winter: Less
Ex. 2 From Monday to Thursday: Less Friday, Saturday: More Sunday: Normal
⑤Setting [Pause]
If it is a day off and no hot water is required to store, it can make hot water storage operation prohibited.
Operation Operation Operation
100%
Set hot water amount
50%
0% 22:0014:008:0022:00
③In Pause by
peak-cut timer
Actual hot water amount
(dotted line)
②Set hot water amount at each time
Store hot water during the night time
applied cheaper tariff.
If the hot water amount becomes lower than
the set value, hot water storing operation starts.

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(2) Operation pattern of CO2heat 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 gure.
Different heating mode is available.
①Mode AUTO
The heating set temperature changes automatically according to the outdoor temperature.
When the mode AUTO is selected, the shift temperature can be set.
②Mode MANUAL
The heating set temperature is directly set by user. It does not change with outdoor temperature.

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(3) Operation pattern of CO2heat 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 gure.
Setting in case of HW & heating application (Combination use)
①Priority setting (Please see user’s manual for details.)
There are 2 schedules, 1 for Hot Water mode and 1 for Heating mode. When both Hot Water and Heating are
required, the heat pump decides which operation mode is prioritized.
· HW priority
Every time, “HW operation” is prioritized over “Heating operation”.
· Heating priority
Always the “Heating operation” is prioritized.
Notice:
Even if the Heating priority is set, there is a risk of water shortage, the heat pump unit could decide to move on
the HW operation.
②Day off, Peak cut timer (Please see user’s manual for details.)
For these setting, they are common for both HW operation and Heating operation.

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2. SPECIFICATIONS
2.1 Remote control
(1) Remote control for heat pump water heater (Model : RC-Q1EH)
NOTE: Please use ESA30EH together with the remote control “RC-Q1EH”.
(a) Outline dimensional drawing
In this figure, all information are displayed on the LCD at the same time for explanation, but, actually, only the necessary information is displaye
d
at that time.
Installing spaceDimensions to mount a remote control
Display part of time and remote control name
Schedule setting switch
Run/Pause switch
Operation lamp
Operation switch to fill up
(Invalid for heating operation)
TOP button
Heating
ON/OFF button
Heating temperature button Display part of message
In case of taking out wire from upper left
37 23 23
83.5
120
18.3
19
120
Holes to fix a remote control
Fix 2 positions by selecting one each hole on upper and lower rows from total 5 positions
Dimensions to mount a remote control (viewed from front) 52mm
30mm
120mm
30mm
30mm
In case of taking out wire from upper center
Keep minimum space for dismounting the remote control cover case Upper, left, right side: 30mm or more Lower side: 120mm or more If using L-shape screw driver: 50mm or more
TOP
Display part of icon
Installation of remote control
Please do not install a remote control at the place mentioned below. It may cause malfunction and deformation of remote control. (1) Do not install it at the special surrounding where inammable gas may
generate, intrude, retain or leak.
If the remote control is used in the place where there are a lot of oil, vapor, organic solvent and corrosive gas (ammonia, sulfuric compound, acid and etc), or where acidic or alkaline liquid solution, or special spray, are used, it may cause electric shock, re and failure due to remarkable decrease in performance and corrosion.
(2) Do not install it in the place where much water vapor and/or dew
condensation is generated.
It may cause electric shock, re and failure
(3) If installing a remote control in the hospital and telecommunication
service ofce, be sure to take measures against noise.
Due to the inuence of inverter devices, emergency generator, high harmonic medical equipment, wireless communication equipment and etc, it may cause malfunction and failure of the remote control. On the other hand, due to the influence from remote control to medical equipment and communication equipment, it may cause interference of medical action, interruption of broadcast and harmful effect by noise.
(4) Do not install it on the place where it is exposed direct sunlight. (5) Do not install it near the equipment to generate heat. (6) Do install it on the at surface of wall. (7) Do not install it on the place where the surrounding temperature can
increase to 40°C or higher or can decrease to 0°C or lower.
It may cause discoloration, deformation, malfunction and failure.
Electric wiring specications
(1) Remote control wire size: 0.3mm2× 2 cores
shielding wire (MVVS)
wire length: Available up to 600m
If the wire length exceeds 100m, be sure to change the size mentioned in following table. However the size passing through the inside of remote control should be 0.5mm or smaller at the maximum and be changed to bigger size just after the wire coming out of remote control. When connecting wires, be sure to connect them securely without any contact failure and without getting moisture intruded.
Length (m) Wire size
shielding wire (MVVS)
100-within 200m 0.5mm2× 2 cores
Within 300m 0.75mm2× 2 cores Within 400m 1.25mm2× 2 cores Within 600m 2.0mm2× 2 cores
*
As for the function of switches, buttons and displayed icons, please
refer the user's manual of remote control RC-Q1EH for details.

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(b) List of setting functions
Setting and display items Detailed contents
1. Remote control network
1
2
Multiple heat pump water heater control Max. 16 sets of heat pump water heaters in one Superlink network can be
connected to one remote control and controlled by it.
Heat pump water heaters shall be set addresses.
Main or Sub remote control setting 2 remote controls can be connected to one remote control network.
One of them is set "Main" and the other one is set "Sub".
2. TOP screen, switch operation
1
2
3
4
5
6
Menu Set the item of control, setting, conrm and etc. (See item 4 to 10)
Heating ON/OFF Set the heating ON/OFF.
Heating temperature setting Set the heating temperature.
Run/Pause switch Start operation or pause opeartion
Schedule setting switch Set schedule. See item 3 for details.
Switch for operation to ll up
Set the hot water amount 100% and start operation to top up . (Invalid in case of heating application)
3. Schedule settings
1
2
3
Setting of weekly schedule Set the operation pattern for one week.
Set the valid/invalid of timer, ON/OFF of heating, time, heating setting temperature.
●It is available to set 8 operation patterns per day
●It is available to set time at 1 hour intervals.
●It is available to set all. (Week days/ Saturday & Sunday/All days)
Setting of day off If day off is set, the operation of heat pump water heater to top up becomes
invalid.
●It is available to set off day in every week
●It is available to set off day for specific period of time
●It is available to set off day on specific day.
Setting of peak cut Reduce the power consumption by limiting the max. capacity.
Set the start/end time of peek-cut and the peak-cut %.
●It is available to set peek-cut for whole week.
●It is available to set max 4 patterns per day
●It is available to set time at 5 minutes intervals
●It is available to select the peak-out % from 0, 40, 60, 80%
●It is available to set invalid.
●It is available to set all. (Week days/ Saturday & Sunday/All days)
4. Initial settings
1
2
3
4
5
Clock setting Set or correct the current date and time
● In case of power failure within 80 hours, the clock runs by the built-in battery
for back-up.
Date and time display On/Off, 12H/24H or display position of AM/PM can be set
Contrast The contrast of LCD can be adjusted.
Backlight On/Off and lighting time of backlight can be set.
Control sound On/Off of beep sound at touch panel operation can be set

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Setting and display items Detailed contents
5. Administrator settings Adminstrator password is required
1Enable/Disable setting ●Permission/prohibition setting of following operations can be set.
[Run/Pause], [Operation to ll up], [Schedule setting]
[Change set temp], [Change amount of top up]
2 Night tariff setting In order to calculate the power consumption in day/night time, the time zone
applied night tariff can be set.
3
4
5
6
7
HP unit selection The heat pump water heater to be displayed on RC can be selected.
RC display setting RC name and HP water heater name can be registered.
On/Off of [Defrost operation display] and [Display status of HW amount] display
can be set.
Step size of HW temperature Step size of HW temperature (at 5°C or 1°C intervals) can be set.
(Factory default is 5°C)
Change administrator password Administrator password can be changed
User environment By selecting the operation pattern of typical business type, the detailed operation
pattern can be set easily.
6. Installation settings Service password is required.
1
2
3
Installation date If installation date is registered, next service date is displayed.
Company information Contact company can be registered on the remote control.
●Name of contact company can be registered.
●Phone No. of contact company can be registered.
Test run It is available to start test run.
Primary setting of operation It is available to start [Primary setting of operation].
Water pump test run It is available to start [Water pump test run].
7. RC function settings Service password is required.
1Main/Sub of RC Main or Sub remote control setting can be done.
2 External input When multiple heat pump water heaters are connected, the applicable range of
water heaters of CnT input signal can be set.
3 Auto-restart Control contents after recovering from power failure can be set.
8. Service & maintenance Service password is required.
1 No. display of unit Max. 16 sets of heat pump water heaters can be connected to a remote control.
The connected heat pump water heaters can be checked.
2 Next service date Next service date can be registered. On the service date, contact company is
displayed on RC.
3 Error display Up to 14 cases of error history (error code and date of occurrence) can be
displayed.
4 Save HP unit setting Setting contents of heat pump water heaters connected to the remote control can
be saved in remote control as backup.
5 Special setting [CPU reset] [Restore of default setting] [Touch panel calibration]
6 System OFF All heat pump water heaters in one system can be stopped.
9. Contact company Contact company and phone No. are displayed.
10. Check of RC setting Current setting list of RC and HP water heater can be checked.

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Back
Select the item Back
(c) Setting method of remote control for heat pump water heater
[At the initial use]
1) After the completion of installation, check that the feed water is surely supplied to the hot water supply system rstly and then
turn the power ON.
After the completion of initial setting, TOP screen (Screen 1-1) is displayed on the remote control. ＊Operation mode is [Pause]
[Menu]→[Installation setting]→[Input the service password (9999)]→[Test run (Screen 1-2)]→[Water pump test run (Screen 1-3)]
From this screen please start test run of water pump.
Complement: The test run of water pump can be started from the control of heat pump water heater as well. Refer to user’s
manual for heat pump water heater for details.
[Caution 1]
If starting operation by pushing Run/Pause switch before the end of water pump test run, the heat pump water heater may start
the operation.
Since it may cause failure of heat pump water heater, do not start operation until completion of water pump test run.
2) When starting test run of water pump, the message of “In water pump check operation” is displayed on the TOP screen (Screen 2-1).
Purge air by operating test run of water pump.
Be sure to check the drain comes out by opening drain valve and air purge valve.
[Screen 2-1]
3) After completing test run of water pump, stop test run of water pump.
If pushing Run/Pause switch on the panel of remote control to stop operation, the water pump test run is stopped (Screen 3-1)
4) Start the “Primary setting of operation” of the heat pump water heater.
[Menu]→[Installation setting]→[Input the service password (9999)]→[Test run (Screen 4-1)]→[ Primary setting of operation (Screen 4-2)]
According to these procedures, please start the primary setting of operation.
Complement: The primary setting of operation can be started from the control of heat pump water heater as well. Refer to user’s
manual for heat pump water heater for details.
[Screen 1-1] [Screen 1-2] [Screen 1-3]
[Screen 4-1] [Screen 4-2]
Back
Select the item Back
[Screen 3-1]

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5) When starting the primary setting of operation, the message of “In Primary operation”
is displayed on the TOP screen (Screen 5-1).
When completing the primary setting of operation, the heat pump water heater is
stopped and the message of “In primary operation” is disappeared (Screen 1-1) .
Be sure to check the drain comes out by opening drain valve and air purge valve.
[Caution 2]
Since the heat pump unit is paused after the end of this operation, the heat pump
water heater does not start the operation.
However, for anti-freezing of water in the pipe, water pump and compressor may start
operation.
6)
After completion of primary setting of operation, set the necessary items with the remote
control and start operation of the heat pump water heater by pushing
Run/Pause switch.
(Screen 3-1)
When the heat pump water heater is operating as heating, the message of “It is in
operation heating” is displayed on the TOP screen (Screen 6-1).
Complement: As for the setting method by remote control, please refer to the next
item [Setting example] or user’s manual.
[Setting example]
[Setting method] and [Operation pattern of heat pump water heater] for following setting conditions are shown below.
①The heating temperature ThH-1 is 30°C.
②The heating temperature is set as Auto with shift temperature +5°C.
③ The heating operation is done from 8:00 to 17:00 for ofce use.
④For combination use (HW & Heating), the heating operation is done between 8:00 to 17:00 and the operation to top up is done
between 17:00 to 8:00.
1) Setting method (＊Please see user’s manual for details.)
The position of buttons and switches are shown in the right gure.
The above setting conditions ①to ③can be set by pushing the buttons and switches
shown in the right here.
a) Set the heating temperature ThH-1 at 30°C
①When tapping [Heating temperature setting] button on Heating TOP screen
(Screen ①-1), the setting of heating temperature screen is displayed.
② Tap Auto/Manual button to display Manual on the button. Then set the heating
setting temperature (ThH-1) by tapping ▲▼buttons and tap
Set button (Screen
①-2).
[Screen 5-1]
[Screen 6-1]
③
①②
[Screen ①-1] [Screen ①-2]

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b) Set the shift temperature +5°C with heating mode “Auto”
①In case of heating mode “Auto”, the heating setting temperature (ThH-1) is determined by the outside air temperature. Set the
shift temperature by tapping ▲▼buttons and tap
Set button (Screen ②-1).
Info: In case of heating mode “Auto”, the determination of heating setting temperature is following the commission
regulation (EU) No.813/2013.
c) Set the time period for the heating operation with “Auto” mode
①When pushing Schedule setting switch, [Setting of schedule] menu screen is displayed. (Screen ③-1)
②When tapping [Setting of weekly schedule (Heating)], the [Weekly timer] screen is displayed. Tap Week days button (Screen ③-2).
The screen for conrming the set contents is displayed (Screen ③-3).
<Complement> Select the day to be set from Week days , Sat, Sun, All days and Each day buttons.
Week days Set all days from Monday to Friday.
Sat, Sun Set the days of Saturday and Sunday.
All days
Set all days from Monday to Sunday.
Each day Set each day.
③Set the timer on the item 1 to start heating operation at 8:00.
When tapping the line of item 1, this line is highlighted in reverse. Tap Change button.
④[Heating setting screen (Screen ③-4)] is displayed. Tap Valid/Invalid button to display “Valid”, and tap ON/OFF button to
display ON. Next button appears, and tap Next button.
[Screen ②-1]
[Screen ③-1] [Screen ③-2] [Screen ③-3]
[Screen ③-4] [Screen ③-5] [Screen ③-6]

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d) Set the heating operation “Auto” (+5°C) between 8:00 to 17:00, and the operation to top up (75°C) between 17:00 to 8:00.
①If the application is not “HW & Heating”, please set the application.
[Menu]→[Administrator setting (Screen ④-1)]→[Application setting (screen ④-2)]
Notice: Before setting application, tap Run/Pause switch and tap Pause button. If the unit is not in Pause, the application
cannot be changed.
⑤[Heating temperature setting screen (Screen ③-5)] is now displayed. Tap the Auto/Manual button to display “Auto” and tap Set button.
⑥[Heating setting screen (Screen ③-6)] is again displayed. Set the time at 8:00 with ▲▼button and tap Set.
⑦In order to set OFF timer at 17:00, tap item 2 and change as ③,④(With Set “Valid” and Heating “OFF”) and ⑥.
⑧When these 2 timers are set (screen ③-7), tap Set button.
Since [the acknowledge screen (screen ③-8)] for conrming all contents is displayed, tap Yes to save all settings.
[Screen ③-7]
[Screen ④-1]
[Screen ③-8]
[Screen ④-2]
②Set the priority as “Heating”.
[Menu]→[Initial setting(Screen ④-3)]→[Priority setting(screen ④-4)]
Notice: When the priority is set as “Heating”, the heating operation takes precedence even if the target HW amount is not achieved.
③Set the heating schedule as c) above.
④Set the HW schedule with HW amount 100% between 17:00 and 8:00, with HW target temperature 75°C. (For more detail, please
see the user’s manual and technical manual for hot water.)
[Screen ④-3] [Screen ④-4]

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2.2 Heating performance characteristics
(1) ⊿t=5 degree
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
Q-ton inlet temperature 20°C / Inlet temperature of floor heating panel (RC setting) 25°C
Q-ton inlet temperature 25°C / Inlet temperature of floor heating panel (RC setting) 30°C
Q-ton inlet temperature 30°C / Inlet temperature of floor heating panel (RC setting) 35°C
Q-ton inlet temperature 35°C / Inlet temperature of floor heating panel (RC setting) 40°C

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(2) ⊿t=10 degree
Q-ton inlet temperature 20°C / Inlet temperature of floor heating panel (RC setting) 30°C
Q-ton inlet temperature 25°C / Inlet temperature of floor heating panel (RC setting) 35°C
Q-ton inlet temperature 30°C / Inlet temperature of floor heating panel (RC setting) 40°C
Q-ton inlet temperature 35°C / Inlet temperature of floor heating panel (RC setting) 45°C
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity

-
16
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'19 • HM-T-339
(3) ⊿t=15 degree
Q-ton inlet temperature 20°C / Inlet temperature of floor heating panel (RC setting) 35°C
Q-ton inlet temperature 25°C / Inlet temperature of floor heating panel (RC setting) 40°C
Q-ton inlet temperature 30°C / Inlet temperature of floor heating panel (RC setting) 45°C
*ΔT is differential temperature between inlet and outlet of floor heating panel.
Notes 1) The data in this table donʼt include the power consumption of anti-freezing heater(191W).
In case outdoor air temperature ≦3°C, please consider the power consumption of anti-freezing heater.
2) The performance decrement of defrost operation are considered in ths figure.
But heating performance may change in the climate condition and the installation environment.
3) In case of floor heating panel inlet temperature ＞35°C, set the differential temperature between inlet and outlet
temperature at 10°C or more to ensure heating capacity. Set with 7-segment P08 in software setting.
Please see 3.1 (8) for more detail of software setting.
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25
Heating capacity （kW）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-25 -20 -15 -10 -5 0 5 10 15 20 25
COP （-）
Outdoor air temperature （°CDB）
Max. heating capacity
Min. heating capacity

-
17
-
'19 • HM-T-339
Maximum heating capacity at ⊿t=5 degree
Maximum heating capacity at ⊿t=10 degree
Maximum heating capacity at ⊿t=15 degree
Minimum heating capacity at ⊿t=5 degree
Minimum heating capacity at ⊿t=10 degree
Minimum heating capacity at ⊿t=15 degree
Q-ton inlet temperature /
Inlet temperature of oor
heating panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 25˚C
25 30.0 5.5 5.43
16 30.0 6.9 4.33
7 30.0 8.4 3.57
2 30.0 9.9 3.04
-7 30.0 10.8 2.77
-10 27.5 10.3 2.67
-20 21.5 9.2 2.34
-25 18.5 8.6 2.16
25˚C / 30˚C
25 22.6 5.0 4.49
16 24.1 6.4 3.76
7 25.5 7.8 3.26
2 30.0 10.4 2.88
-7 28.7 11.1 2.58
-10 27.0 10.9 2.48
-20 21.1 9.8 2.15
-25 18.1 9.2 1.97
30˚C / 35˚C
25 15.2 4.5 3.35
16 18.1 5.9 3.08
7 21.0 7.2 2.91
2 30.0 11.0 2.73
-7 27.4 11.4 2.41
-10 26.5 11.5 2.31
-20 20.7 10.4 1.99
-25 17.7 9.9 1.80
35˚C / 40˚C
25 15.2 4.5 3.35
16 18.1 5.9 3.08
7 21.0 7.2 2.91
2 29.0 11.0 2.63
-7 25.0 10.5 2.37
-10 23.7 10.4 2.28
-20 19.2 9.8 1.96
-25 17.0 9.6 1.78
Q-ton inlet temperature / Inlet
temperature of oor heating
panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 30˚C
25 30.0 5.5 5.43
16 30.0 6.9 4.33
7 30.0 8.4 3.57
2 30.0 9.9 3.04
-7 30.0 10.8 2.77
-10 27.5 10.3 2.67
-20 21.5 9.2 2.34
-25 18.5 8.6 2.16
25˚C / 35˚C
25 22.6 5.0 4.49
16 24.1 6.4 3.76
7 25.5 7.8 3.26
2 30.0 10.4 2.88
-7 28.7 11.1 2.58
-10 27.0 10.9 2.48
-20 21.1 9.8 2.15
-25 18.1 9.2 1.97
30˚C / 40˚C
25 15.2 4.5 3.35
16 18.1 5.9 3.08
7 21.0 7.2 2.91
2 30.0 11.0 2.73
-7 27.4 11.4 2.41
-10 26.5 11.5 2.31
-20 20.7 10.4 1.99
-25 17.7 9.9 1.80
35˚C / 45˚C
25 15.2 4.5 3.35
16 18.1 5.9 3.08
7 21.0 7.2 2.91
2 29.0 11.0 2.63
-7 25.0 10.5 2.37
-10 23.7 10.4 2.28
-20 19.2 9.8 1.96
-25 17.0 9.6 1.78
Q-ton inlet temperature / Inlet
temperature of oor heating
panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 35˚C
25 30.0 5.5 5.43
16 30.0 6.9 4.33
7 30.0 8.4 3.57
2 30.0 9.6 3.14
-7 30.0 10.8 2.77
-10 27.5 10.3 2.67
-20 21.5 9.2 2.34
-25 18.5 8.6 2.16
25˚C / 40˚C
25 23.4 5.0 4.65
16 24.1 6.4 3.76
7 25.5 7.8 3.26
2 30.0 10.3 2.92
-7 28.7 11.1 2.58
-10 27.0 10.9 2.48
-20 21.1 9.8 2.15
-25 18.1 9.2 1.97
30˚C / 45˚C
25 16.8 4.5 3.35
16 18.1 5.9 3.08
7 21.0 7.2 2.91
2 30.0 11.0 2.73
-7 27.4 11.4 2.41
-10 26.5 11.5 2.31
-20 20.7 10.4 1.99
-25 17.7 9.9 1.80
Q-ton inlet temperature / Inlet
temperature of oor heating
panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 30˚C
25 11.2 2.1 5.44
16 11.5 2.6 4.39
7 14.2 3.8 3.76
2 14.9 4.4 3.41
-7 14.1 4.5 3.11
-10 13.5 4.6 2.96
-20 11.8 4.8 2.47
-25 11.2 4.9 2.23
25˚C / 35˚C
25 11.2 2.4 4.66
16 11.3 3.0 3.73
7 14.0 4.0 3.47
2 15.2 4.7 3.22
-7 14.2 4.9 2.91
-10 13.7 5.0 2.76
-20 11.7 5.1 2.27
-25 11.2 5.4 2.06
30˚C / 40˚C
25 11.2 3.3 3.35
16 11.2 3.5 3.23
7 13.8 4.3 3.22
2 15.6 5.1 3.05
-7 14.4 5.3 2.74
-10 13.8 5.3 2.58
-20 11.6 5.5 2.10
-25 11.2 6.0 1.86
35˚C / 45˚C
25 11.2 3.3 3.35
16 11.2 3.5 3.23
7 13.8 4.3 3.22
2 16.4 5.1 3.22
-7 14.4 5.3 2.74
-10 13.8 5.3 2.58
-20 11.6 5.5 2.10
-25 11.2 6.1 1.84
Q-ton inlet temperature / Inlet
temperature of oor heating
panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 35˚C
25 16.8 1.6 5.44
16 16.8 3.8 4.46
7 16.8 3.8 3.71
2 16.8 5.1 3.31
-7 16.8 5.6 3.01
-10 16.8 5.9 2.86
-20 16.8 6.9 2.42
-25 16.8 7.6 2.21
25˚C / 40˚C
25 16.8 3.3 5.07
16 16.8 4.0 4.19
7 16.8 4.6 3.69
2 16.8 5.4 3.12
-7 16.8 6.0 2.81
-10 16.8 6.3 2.67
-20 16.8 7.5 2.23
-25 16.8 8.3 2.01
30˚C / 45˚C
25 16.8 5.0 3.35
16 16.8 5.2 3.20
7 16.8 5.3 3.15
2 16.8 5.7 2.95
-7 16.8 6.4 2.64
-10 16.8 6.7 2.50
-20 16.8 8.2 2.06
-25 16.8 9.1 1.85
Q-ton inlet temperature / Inlet
temperature of oor heating
panel (RC setting)
Outdoor
air temperature ˚C
Heating
capacity kW
Power
consumption kW
COP
20˚C / 25˚C
25 8.8 1.6 5.44
16 11.5 2.6 4.43
7 14.2 3.8 3.76
2 14.9 4.4 3.41
-7 14.1 4.5 3.11
-10 13.5 4.6 2.96
-20 11.8 4.8 2.47
-25 10.9 4.9 2.25
25˚C / 30˚C
25 7.2 1.5 4.66
16 10.3 2.7 3.82
7 14.0 4.0 3.47
2 15.2 4.7 3.22
-7 14.2 4.9 2.91
-10 13.7 5.0 2.76
-20 11.7 5.1 2.27
-25 10.7 5.2 2.04
30˚C / 35˚C
25 5.6 1.7 3.35
16 9.1 2.8 3.25
7 13.8 4.3 3.22
2 15.6 5.1 3.05
-7 14.4 5.3 2.74
-10 13.8 5.3 2.58
-20 11.6 5.5 2.10
-25 10.5 5.6 1.87
35˚C / 40˚C
25 5.6 1.7 3.35
16 9.1 2.8 3.25
7 13.8 4.3 3.22
2 16.4 5.1 3.22
-7 14.4 5.3 2.74
-10 13.8 5.3 2.58
-20 11.6 5.5 2.10
-25 10.5 5.6 1.87

-
18
-
'19 • HM-T-339
Symbol Name of component Function Details
1 CM1 Inverter scrotary compressor
The compressor speed is controlled to maintain nominal heating capacity
according to the outdoor air temperature, return water temperature and heating
temperature set by remote control.
Control range of compressor speed: 42-104rps
The target speed of compressor can be checked with Mente PC.
-
3 EEVG1
Electronic expansion valve for
gas cooler
EEVG1 is used for discharge pipe temperature control.
The target temperature of discharge pipe is decided by outdoor air temperature,
return water inlet temperature and heating temperature set by remote control.
Control range of target discharge pipe temperature: 77-125°C
The target discharge pipe temperature can be checked with Mente PC.
-
2.3 Control
(1) Functional components for refrigerant cycle
For functional components other than those listed below, please see the TECHNICAL MANUAL for DHW system.
(2) Functional components for water cycle
Please see the TECHNICAL MANUAL for DHW system.
(3) Control of refrigerant piping system
Control of refrigerant piping system is same as DHW operation. Please see the TECHNICAL MANUAL for DHW system.
(4) Water circuit system control
For water circuit system control in DHW operation (water heater operation), please see the
TECHNICAL MANUAL for
DHW system.
(4)-1 Water circuit system control at heating operation
In heating mode, water pump in heat pump unit run at constant speed. Water ow volume and inlet temperature at oor
heating panel are controlled by the temperature control circuit.
Floor heating panel
Heat pump unit
TCCV1
FM
TCCV3
TCCV2
FL1
ThH-1
ThH-2
Pc1
Mixing valve
CWFV3
Switching valve
(for DHW system)
T
T
Gas cooler
Circulation
pump
Water
pump
EEVG1
2/1HVEE
ACC
Compressor
Inter cooler
Temperature control circuit
Control
External
Control
External output signal
(Operation signal, Heating operation signal)
Water flow
control valve
Upper limit alarm output for preventing excessive flow

-
19
-
'19 • HM-T-339
(4)-2 Water flow volume control
Water ow volume is controlled at a constant ow rate by the mixing valve (TCCV1), and ow meter (FL1) in tem-
perature control circuit.When the water ow volume increases, the mixing valve is adjusted to increase the water ow
volume to be recirculated. If the water ow volume decreases, reduce the water ow volume recycled.
Be sure to provide an excessive ow alarm output for the external control. Do not continue using the oor heating sys-
tem with the alarm.
(4)-3 Temperature control
Temperature difference between inlet and outlet water to oor heating panel is controlled at a constant by the ow regu-
rating valve (TCCV2) and temperature sensor ThH-1 and ThH-2.
When the water ow volume increases, the mixing valve is adjusted to increase the water ow volume to be recirculated.
If the water ow volume decreases, reduce the water ow volume recycled.
(4)-4 Thermo off control
When the gas cooler inlet temperature becomes higher than the specied temperature, the heat pump unit is thermo-off
as shown below.The compressor stops while thermo-off.
Target temp. = The target inlet temperature of the heating panel - [P08]
[P08] : Differential temperature between inlet/outlet of heating panel
[P42], [P43] : Differential temperature set by software switch setting.
(default: 0.5℃)
(4)-5 Operation priority in case of Combination system (DHW and space heating)
The priority of hot water operation and heating operation is decided by setting in remote control as follows.
・When the priority setting of the remote control is "HW".
(Priority: High) Fill up > Anti-legionella > Top up > Keep warm > Heating > Night defrost > Anti-freeze (Priority: Low)
・When the priority setting of the remote control is "Heating".
(Priority: High) Fill up > Anti-legionella > Heating > Top up > Keep warm > Night defrost > Anti-freeze (Priority: Low)
Even the priority setting is "Heating", top up is operated if the HW amount is below the lower limit HW amount set by
software setting [P07].
(4)-6 External output signal
External output terminal CnZ1 and CnZ2 can be assinged "Heating operation output". Set value "15" of software setting
and connect to the external control. For details, see 3.1(7)7-2.
Address of 7-segment LED is below
CnZ1 : [P23] (Factory default "0": Operation output)
CnZ2 : [P24] (Factory default "1": Error output)
Thermo-off
Thermo- on
Target temp.+ [P42]
Target temp. -[P43]
Gas cooler inlet temperature [ ℃]