4 Operation
User reference guide
10
EHVZ04~16S18CB
Daikin Altherma – Low temperature split
4P401674-1 – 2015.02
4.4.9
Leaving water temperature control - Using
leaving water temperature control NOT
according to a schedule
To adjust the leaving water temperature (main)
1
Go to the main leaving water temperature home page (LWT
main).
2
Press
or
to adjust.
Example:
35°C 37°C
To adjust the leaving water temperature
(additional)
1
Go to the additional leaving water temperature home page
(LWT add).
2
Press
or
to adjust.
Example:
45°C 47°C
INFORMATION
In case of weather dependency, an offset value can be
modified.
4.4.10
External room thermostat control - About
external room thermostat control
External room thermostat control means that you control the
following:
▪ Room temperature on the external thermostat control
▪ Leaving water temperature on the user interface (Daikin)
To control the leaving water temperature, you can do the following:
You can…
Location
Read out
the desired leaving water
temperature
.
Leaving water
temperature home
pages (main +
additional)
Adjust
the desired leaving water
temperature.
Only change this if the desired room
temperature cannot be reached.
See also:
"4.4.6 Room thermostat control - Using the leaving water
temperature home pages" on page 8
4.4.11
External room thermostat control - Using
external room thermostat control
To adjust the leaving water temperature (main)
1
Go to the main leaving water temperature home page (LWT
main).
2
Press
or
to adjust.
Example:
35°C 37°C
To adjust the leaving water temperature
(additional)
1
Go to the additional leaving water temperature home page
(LWT add).
2
Press
or
to adjust.
Example:
45°C 47°C
INFORMATION
In case of weather dependency, an offset value can be
modified.
4.5
Domestic hot water control
4.5.1
About domestic hot water control
▪ Reheat mode
▪ Scheduled mode
▪ Sch reheat mode
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
To determine which DHW tank mode you are using (method 1)
Check the installer settings table filled in by the installer.
To determine which DHW tank mode you are using (method 2)
Prerequisite:
User profile = Detailed.
1
Go to the DHW tank temperature home page (Tank).
2
Check which icons are displayed:
If… is displayed
Then the DHW tank mode =…
Reheat mode
Scheduled mode
Sch reheat mode
4.5.2
Reheat mode
In reheat mode ( ),the DHW tank continuously heats up to the
temperature shown on the DHW tank temperature home page
(example: 50°C).
t
60°C
00:00
07:00
50°C
15°C
40°C
14:00
21:00
1
2
3
4
Tt
T
t
DHW tank temperature
t
Time
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
Summary of Contents for Altherma EHVZ08S18CB
Page 23: ......
