Daikin Altherma HT Manual de usuario

User Guide – Altherma HT

For your new Daikin Altherma high temperature heat pump

your comfort. our world.

User Guide – Altherma HT

In this manual you will ﬁnd information and guidelines that will allow

you to run your Daikin Altherma heat pump system in the most energy

eﬃcient and cost eﬀective way.

We hope you enjoy a warm and comfortable winter season!

Your new Daikin Altherma

heat pump

Outdoor unit Hot water cylinder Hydrobox Daikin Altherma controller

System overview

The heart of your new central heating system

is a highly eﬃcient Daikin Altherma air source

heat pump. The heat pump heats the water

which ﬂows around your central heating and

separately heats the hot water when required

in your hot water cylinder. The central heating

is usually controlled from a Daikin controller or

programmable room thermostat which

switches the heat pump on and oﬀ at preset

times, sending warm water through the

central heating. Most radiators have thermostats

(TRV’s) ﬁtted to control the individual

room temperatures.

User Guide – Altherma HT

Outdoor unit

Outside is the heat pump. This extracts heat

from the air, even below 0°C and uses this heat

to heat the water passing through the central

heating and hot water cylinder.

The outdoor unit pulls in air from the rear,

extracts the heat in the air, and blows the cooled

air out the front. This is done automatically,

and there is no need to set or adjust it.

If the rear of the outdoor unit gets clogged

up with leaves or debris, the eﬃciency of your

heating system can be reduced, this should be

checked regularly and cleaned with a soft brush.

Similarly, don’t block the front of the unit up by

leaning anything against it.

Hydrobox

The hydrobox is located below the hot water

cylinder. This distributes hot water around the

central heating and to the cylinder. The Daikin

Altherma controller communicates with the

hydrobox for eﬃcient use.

Cylinder

Hot water is stored in the cylinder. To ensure low

running costs the cylinder is normally set to heat

to 50°C. Your system is set up to heat the water

in the cylinder at the time when it is cheapest.

If you have Economy 7 this will be during

oﬀ-peak periods. If not, it will be during the day

when the air temperature is higher. The cylinder

is being heated when the symbol is shown on

the Daikin Altherma controller. Once a week the

water in the cylinder is heated to 60°C to ensure

the cylinder remains free from bacteria.

Your heating system in detail

and getting the most from it

Hot water preparation in detail

Your system is set up to heat the water in the cylinder at the time

when it is cheapest. If you have Economy 7 this will be during

oﬀ-peak periods. If not, it will be during the day when the air

temperature is higher.

Programmable room thermostat

You may have a room thermostat installed in

your property. It would be located in the hall or

within certain rooms. It controls when the house

is heated, and to what temperature.

It is likely the thermostat has been set to

heat the house to 21°C in the early morning,

lunchtime and evening, with a cooler 18°C

at other times from Monday to Friday.

At weekends, it is set to 21°C from early morning

until late evening, with 18°C over night.

Heat emitters: radiators

Most radiators are ﬁtted with Thermostatic

Radiator Valves (TRV’s) as shown in the picture

which ensures rooms will not become

too warm.

Temperatures are represented by numbers

or roman numerals I, II, III, IIII. The higher the

number, the warmer the room temperature.

Each valve should be set according to the

temperature you wish to achieve.

Underoor heating (UFH) and/or

fan coil units (FCU)

If UFH heating is installed you may see

a manifold in your airing cupboard

or similar with pipes going

into the ﬂoor. This will heat

your ﬂoors, which in turn

heat your home. If FCU are

installed you will see them

on your walls. FCU operate

in a similar way to radiators,

but a fan in the unit

pushes heat into the

space around it.

User Guide – Altherma HT

Your Daikin Altherma

remote controller

1. On/oﬀ 6. Room temp adjust 11. Weather compensation on/oﬀ

2. LCD display 7. Leaving water temp adjust 12. Quiet mode on/oﬀ

3. Set temperature of heating 8. Time adjust 13. Time display

4. Not used 9. Schedule timer on/oﬀ 14. Day of week indicator

5. Hot water on/oﬀ 10. Programming button 15. Operation mode icons

910 876

User Guide – Altherma HT

Useful functions on your

Daikin Altherma controller

Reheat function

This mode will prevent your tank from cooling

down lower than a speciﬁed temperature

(as set-up by your installer). This will ensure your

tank is always at a minimum temperature so you

are less likely to run out of hot water.

On your Daikin controller press the

button for 5 seconds to enable reheat. The

icon will be displayed on your screen. To turn oﬀ

the reheat function, press the button.

The icon will disappear.

Central heating operation

This option will operate if you have a room

thermostat controller installed. Use the

button on the Daikin controller to switch

on/oﬀ central heating. When the and

room temperature is displayed too.

Use the and

buttons to increase or decrease your desired

room temperature. The maximum room

temperature setting is 32°C.

User Guide – Altherma HT

Maximising your energy savings

When in the automatic (weather compensation)

mode, if you feel the house is too warm or

not warm enough you can adjust the central

heating water supply temperature up or down

by pressing the

buttons on the controller.

To increase the eﬃciency of the central heating

system, your heat pump will automatically vary

the temperature of the water going through

your central heating. The colder the temperature

gets outside, the warmer the circulating water

through your central heating.

This feature (called weather compensation or

economy mode) should be selected on the

controller, and the automatic symbol will

show in the controller display. If this symbol is

not shown, press the button.

User Guide – Altherma HT

Changing the hot water timer settings

If you wish to set the hot water to heat at times other than those

already set, you need to adjust the controller:

1. To enter the schedule timer function, press

2. Press the button until the symbol

begins to ﬂash on the display

3. Press

4. The time of the 1st action will now appear, you can scroll

through any programmed actions via

5. To adjust the action push and hold until the display

begins to ﬂash

6. You can now adjust the action time via

7. Use to choose on/oﬀ

8. To conﬁrm the changes press , it will then advance to

the next action

9. Repeat the last step until all required actions are programmed

10. Press and hold until ‘setting’ appears to save the changes

11. Press repeatedly to go back through the screen levels

until you are back to the normal screen

Setting the clock

If for any reason you require to re-set the clock,

1. Push and hold the button until the clock starts to ﬂash

2. Adjust the time via the

3. Adjust the day via the

4. To save the changes push

User Guide – Altherma HT

If the radiator is too cold check that

the radiator TRV is set to a high

enough level.

A room may become warm enough without

the radiator being more than lukewarm.

Is the programmable thermostat

set too low?

Check that the temperature on the

programmable thermostat is set high enough

to start the heat pump.

Is the mains power switched o?

Check that the heating switches are switched

ON, including the switch located next to the

outdoor unit.

In the event you have checked the points

opposite, and the system still fails to operate

normally, you can manually reset the system by

turning oﬀ the power, waiting 60 seconds then

turning it back on.

If the system still does not operate

as normal, check the display on the controller

for a fault code (typically a number and a letter

for example 7H) and contact your housing

association, making reference to the

displayed code.

Your checklist for

diagnosing possible faults

www.daikin.co.uk

For full user instructions, please refer to the Daikin Altherma

operation manual.

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