Domestic Hot Water Control: Advanced - Daikin EGSQH10S18AA9W Installer's Reference Manual

Altherma ground source heat pump

Hide thumbs Also See for EGSQH10S18AA9W:

Service manual (168 pages)

Installation manual (28 pages)

User reference manual (24 pages)

Table Of Contents

Table of Contents

8 Configuration

NOTICE

If Emergency is set to Manual ([A.5.1.2]=0), and the unit is

triggered to start emergency operation, the user interface

will ask confirmation before starting. Room frost protection

is active even if the user does NOT confirm emergency

operation.

[C‑07]=1: external room thermostat control

Under external room thermostat control, room frost protection is

guaranteed by the external room thermostat, provided that the

leaving water temperature home page is ON on the user interface,

and the auto emergency setting ([A.5.1.2]) is set to "1".

Additionally, limited frost protection by the unit is possible:

In case of...

One leaving water temperature

zone

Two leaving water temperature

zones

NOTICE

For the (limited) frost protection to be possible, auto

emergency MUST be set to Automatic ([A.5.1.2]=1).

[C‑07]=0: leaving water temperature control

Installer reference guide

...then the following applies:

▪ When

the

leaving

water

temperature home page is

OFF and the outdoor ambient

temperature drops below 4°C,

then

the

unit

will

supply

leaving water to the heat

emitters to heat up the room

again, and the leaving water

temperature setpoint will be

lowered by 5°C.

▪ When

the

leaving

water

temperature home page is ON,

the external room thermostat

is "Thermo OFF" and the

outdoor ambient temperature

drops below 4°C, then the unit

will supply leaving water to the

heat emitters to heat up the

room again and the leaving

water temperature setpoint will

be lowered by 5°C.

▪ When

the

leaving

water

temperature home page is ON

and

the

external

room

thermostat is "Thermo ON",

then room frost protection is

guaranteed

the

normal

logic.

▪ When

the

leaving

water

temperature home page is

OFF, and the outdoor ambient

temperature drops below 4°C,

then

the

unit

will

supply

leaving water to the heat

emitters to heat up the room

again, and the leaving water

temperature setpoint will be

lowered by 5°C.

▪ When

the

leaving

water

temperature home page is ON,

the

outdoor

ambient

temperature drops below 4°C,

then

the

unit

will

supply

leaving water to the heat

emitters to heat up the room

again, and the leaving water

temperature setpoint will be

lowered by 5°C.

Under leaving water temperature control, room frost protection is

NOT guaranteed. However, if [2‑06] is set to "1", limited frost

protection by the unit is possible:

▪ When the leaving water temperature home page is OFF and the

outdoor ambient temperature drops below 4°C, then the unit will

supply leaving water to the heat emitters to heat up the room

again, and the leaving water temperature setpoint will be lowered

by 5°C.

▪ When the leaving water temperature home page is ON, then the

unit will supply leaving water to the heat emitters to heat up the

room according to normal logic.

NOTICE

For the (limited) frost protection to be possible, auto

emergency MUST be set to Automatic ([A.5.1.2]=1).

Shut-off valve

The following is only applicable in case of 2 leaving water

temperature zones.

The shut-off valve, which is in the main leaving water temperature

zone, output is configurable.

Thermo On/OFF: the valve closes, depending on [F-0B] when there

is no heating and/or demand of the room in the main zone. Enable

this setting to:

▪ avoid leaving water supply to the heat emitters in the main LWT

zone (through the mixing valve station) when there is request from

the additional LWT zone.

▪ activate the On/OFF pump of the mixing valve station only when

there is demand. See

"5 Application guidelines" on

Code

[A.3.1.1.6.1] [F-0B]

The shut-off valve:

▪ 0 (No)(default): is NOT influenced by

heating demand.

▪ 1 (Yes): closes when there is NO

heating demand.

INFORMATION

The setting [F‑0B] is only valid when there is a thermostat

or external room thermostat request setting (NOT in case

of leaving water temperature setting).

Operation range

Depending on the average outdoor temperature, the operation of the

unit in space heating is prohibited.

Space heating OFF temp: When the averaged outdoor temperature

raises above this value, space heating is turned OFF to avoid

overheating.

Code

[A.3.3.1]

[4-02]

14°C~35°C (default: 35°C)

8.3.2