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4 Operation

User reference guide

7

EJHA EHY32AA
Daikin Altherma hybrid monobloc
4P531181-1 – 2018.06

To turn ON or OFF the domestic hot water control

1

Go to the DHW tank temperature home page (Tank).

2

Press 

.

To turn ON or OFF the instant domestic hot water control

1

Go to the instant DHW temperature home page (DHW).

2

Press 

.

4.4

Space heating control

4.4.1

About space heating control

Controlling space heating typically consists of the following stages:

1

Setting the space operation mode

2

Controlling the temperature

Depending on the system layout and installer configuration, you use
a different temperature control:

▪ Room  thermostat  control  (linked  or  NOT  linked  to  leaving  water

temperature)

▪ Leaving water temperature control

▪ External room thermostat control

4.4.2

Setting the space operation mode

About space operation modes

The heat pump is a heating only model. The system can heat up a
space, but NOT cool down a space.

4.4.3

Determining which temperature control
you are using

To determine which temperature control you are
using (method 1)

Check the installer settings table filled in by the installer.

To determine which temperature control you are
using (method 2)

Prerequisite: 

You  switched  the  permission  level  to  Advanced  end

user.

1

Check the following:

If…

Then the temperature control is…

Main zone

Room temperature is
listed under:

[6.1]: 

 > Information

> Sensor information

Room thermostat control.

Go to next step to check if leaving water
set point and room temperature set point
are linked.

Thermostat main A is
listed under:

[6.5]: 

 > Information

> Actuators

External room thermostat control.

Else

Leaving water temperature control.

2

Only for room thermostat control: Go to the main leaving water
temperature home page (LWT main) and check the following:

Is   displayed

next to the

set point?

Then leaving water set point and room

temperature set point are…

Yes

NOT linked.

You can set the leaving water set point on
the home page.

Is   displayed

next to the

set point?

Then leaving water set point and room

temperature set point are…

No

Linked by their preset values. You can set
the preset values in the menu structure.

4.4.4

Room thermostat control - About room
thermostat control

Room thermostat control means that you control the following:

▪ Room temperature of the main zone

▪ Leaving water temperature of the main zone

Room temperature of the main zone

To  control  the  room  temperature  of  the  main  zone,  you  can  do  the
following:

You can…

Location

Read out 

the actual and desired room

temperature

.

Room temperature
home page

Temporarily overrule 

the room temperature

schedule

.

Change the mode 

from scheduled to preset

value.

If you do this, you also have to define (in the
menu structure):

▪ Preset values

▪ Overrule period (Temperature lock)

Room temperature
home page if user
profile = Detailed

Select 

which room temperature 

schedule

you want to use.

Menu structure

Program schedules.

Define preset values

 that are used by the

room temperature schedule, and when you
change the mode from scheduled to preset
value.

See also:

"4.4.5  Room  thermostat  control  -  Using  the  room  temperature
home pages" on page 8

"To set the overrule period" on page 9

"4.7 Preset values and schedules" on page 16

Leaving water temperature of the main zone

To control the leaving water temperature of the main zone, you can
do the following:

You can…

Location

Read out 

the desired leaving water

temperature

.

Leaving water
temperature home
page (main)

Adjust 

the leaving water 

temperature

.

Condition: Leaving water set point is NOT
linked with the room temperature set point.

Only change this if the desired room
temperature cannot be reached.

Define preset values.

Condition: Leaving water set point is linked
with the room temperature set point.

Only change this if the desired room
temperature cannot be reached.

Menu structure

See also:

"4.4.6  Room  thermostat  control  -  Using  the  leaving  water
temperature home pages" on page 9

"4.7 Preset values and schedules" on page 16

Summary of Contents for Altherma EHY2KOMB28AA

Page 1: ...User reference guide Daikin Altherma hybrid monobloc English User reference guide Daikin Altherma hybrid monobloc EJHA04AAV3 EHY2KOMB28AA EHY2KOMB32AA...

Page 2: ...schedules Room temperature leaving water temperature main 17 4 7 5 Predefined schedules DHW tank temperature 18 4 8 Weather dependent operation 18 4 8 1 To set the weather dependent settings 18 4 9 M...

Page 3: ...arts must be done by an authorized installer and must comply with applicable legislation Units must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this pro...

Page 4: ...an cold start up NOTICE During holidays Do NOT turn OFF the power supply The power is needed for the frost protection functions of the outdoor unit Use the holiday mode instead 3 1 About freeze protec...

Page 5: ...F one of the controls room temperature leaving water temperature DHW tank temperature d MENU STRUCTURE BACK Opens the menu structure when you are on a home page Goes up a level when you are navigating...

Page 6: ...Tank Instant DHW DHW To go to a home page 1 Press Result One of the home pages is displayed 2 Press again to display the next home page if any 4 3 2 Using the menu structure About the menu structure Y...

Page 7: ...are Yes NOT linked You can set the leaving water set point on the home page Is displayed next to the set point Then leaving water set point and room temperature set point are No Linked by their preset...

Page 8: ...y using or to adjust the temperature Result The room temperature follows the manually adjusted value but will return to the scheduled value after the overrule period Temperature lock 2 4 6 8 hours or...

Page 9: ...ct Result For the next 2 hours the room will NOT be heated to the scheduled 20 C but to the preset value Eco 18 C After 2 hours the room will heat up again to the scheduled 20 C Advantage You save ene...

Page 10: ...erature is permanent unless the leaving water temperature is according to a schedule In that case the overruling is valid until the next scheduled action 1 Go to 7 4 2 User settings Preset values LWT...

Page 11: ...e home page Tank 2 Check which icons are displayed If is displayed Then the DHW tank mode Reheat mode Scheduled mode Scheduled reheat mode Reheat mode In reheat mode the DHW tank continuously heats up...

Page 12: ...times Example t Tt 60 C 00 00 07 00 50 C 45 C 15 C 14 00 21 00 35 C 1 2 4 5 3 Tt DHW tank temperature t Time 60 C Storage comfort 50 C Storage eco 45 C Reheat 35 C Reheat tank temperature hysteresis v...

Page 13: ...can read out in the menu structure depends on your user permission level End user default Adv end user You can read out more information To set the user permission level to Advanced end user 1 Go to...

Page 14: ...tings will be used To check if holiday mode is activated and or running 1 Press to go to one of the home pages 2 Check the following If is displayed Then One of the following holiday modes is activate...

Page 15: ...handling Error history and contact helpdesk number 6 4 User permission level Current user permission level 6 5 Actuators Status mode of each actuator Example Domestic hot water pump ON OFF 6 6 Operat...

Page 16: ...re than 5 seconds 3 Select a function and press 4 Select Lock or Unlock and press 4 7 Preset values and schedules 4 7 1 Using preset values About preset values You can define preset values for multipl...

Page 17: ...do the following 1 Program 3 room temperature schedules in heating mode and give them appropriate names Example EarlyShift DayShift and LateShift 2 Select the schedule that you currently want to use 4...

Page 18: ...mode see the installer reference guide To set the parameters for the weather dependent curve see below 4 8 1 To set the weather dependent settings Prerequisite You switched the permission level to Ad...

Page 19: ...information Error history Contact helpdesk number Version User interface Indoor unit Outdoor unit User settings Display Temperature lock Set schedules Preset values Allowed operation mode Unit of mea...

Page 20: ...in Contact helpdesk number 5 Setting the energy prices If your system s savings mode is set to Economical it allows you to set a fixed gas price 3 electricity price levels a weekly schedule timer for...

Page 21: ...ics for consumed electricity calculated by the interface itself based on an internal calculation consumed gas only in case of EHY2KOMB28 32AA gas boiler calculated by the interface itself based on an...

Page 22: ...an operating gas appliance or an operating electric heater WARNING Do NOT pierce or burn refrigerant cycle parts Do NOT use cleaning materials or means to accelerate the defrosting process other than...

Page 23: ...mp failure occurs the domestic hot water and space heating operations will stop and need to be recovered manually The user interface will then ask you to confirm whether the boiler can take over the e...

Page 24: ...or domain Service company Qualified company which can perform or coordinate the required service to the product Installation manual Instruction manual specified for a certain product or application e...

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Page 28: ...4P531181 1 2018 06 Copyright 2018 Daikin...

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