Daikin EHVH08S18CA User Manual download pdf (Page 4)

3 Operation

Operation manual

EHBH/X04+08+16CA + EHVH/X04+08S18CA + EHVH/X08S26CA +

EHVH/X16S18+26CA

Daikin Altherma - Low Temperature Split

4P313773-1B – 2012.11

Icon Description

User permission level = Installer.

Defrost/oil return mode is active.

Hot start mode is active.

Emergency operation is active.

3.3 Space heating/cooling control

3.3.1 Setting the space operation mode

To set the space operation mode

1 Go to [4]: > Operation mode.

2 Select one of the following and press :

If you select… Then the space operation mode is…

Heating Always heating mode.

Cooling Always cooling mode.

Automatic Automatically changed by the software

based on the outdoor temperature

(and depending on installer settings

also the indoor temperature), and

takes monthly restrictions into account.

Note: Automatic changeover is only

possible under certain conditions.

To restrict when automatic changeover is possible

1 Go to [7.5]: > User settings > Allowed operation mode.

2 Select a month and press

3 Select Heating only, Cooling only or Heating/Cooling, and press

3.3.2 Using the room temperature home page

Typical room temperature home pages

Depending on the user profile, you can do more or less on the home

page.

User profile = Basic User profile = Detailed

20.0°C

1 5 : 2 0

A c t u a l t e m p e r a t u r e

Mon

Room

20.0°C

1 5 : 2 0

1 7 : 3 0

A c t u a l t e m p e r a t u r e

S c h e d u l e d

Tue

Mon

Room

To read out the actual and desired room

temperature

1 Go to the room temperature home page (Room).

Result: You can read out the actual temperature.

20.0°C

A c t u a l t e m p e r a t u r e

2 Press .

Result: You can read out the desired temperature.

22.0°C

D e s i r e d t e m p e r a t u r e

To temporarily overrule the room temperature

schedule

1 Go to the room temperature home page (Room).

2 Use or to adjust the temperature.

To change the mode from scheduled to preset

value

Prerequisite: User profile = Detailed.

1 Go to the room temperature home page (Room).

2 Press or to select a preset value ( or ).

To set the overrule period

1 Go to [7.2]: > User settings > Temperature lock.

2 Select a value and press :

▪ Permanent

▪ hours (2, 4, 6, 8)

Result: This overrule period (Temperature lock) remains valid until

you change it again.

3.3.3 Using the leaving water temperature

home pages (main + additional)

INFORMATION

The leaving water is the water that is sent to the heat

emitters. The desired leaving water temperature is set by

your installer in accordance with the heat emitter type.

Example: Under floor heating is designed for lower leaving

water temperature than radiators and heat pump

convectors and/or fan coil units. You only have to adjust

leaving water temperature settings in case of problems.

For more information about the leaving water temperature, see the

user reference guide.

3.4 Domestic hot water control

3.4.1 Reheat mode

In reheat mode ( ), the DHW tank continuously heats up to the

desired temperature (example: 50°C).

60°C

00:00 07:00

50°C

15°C

40°C

14:00 21:00

▪ T

: DHW tank temperature

▪ t: Time

INFORMATION

It is recommended NOT to use the selection of ([6‑0D]=0,

[A.4.1] Domestic hot water Setpoint mode=Reheat only) in

case of a domestic hot water tank without internal booster

heater.

The risk of space heating (cooling) capacity shortage/

comfort problems is significant (in case of frequent

domestic hot water operation, frequent and long space

heating/cooling interruption will happen).

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Daikin EHVH08S18CA User Manual Page 4

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