5 Energy saving tips
User reference guide
20
EHVZ04~16S18CB
Daikin Altherma – Low temperature split
4P401674-1 – 2015.02
INFORMATION
Depending on the selected installer settings, settings will
be visible/invisible.
4.10
Installer settings: Tables to be
filled in by installer
4.10.1
Quick wizard
Setting
Default
Fill in…
Backup heater configuration (only for unified backup heater)
[A.2.1.5]
BUH type
1 (1P,(1/2))
Preferential kWh rate power supply [A.2.1.6]
Preferential kWh rate
0 (No)
Space heating settings [A.2.1]
Unit control method
2 (RT control)
User interface location
1 (In room)
Number of LWT zones
1 (2 LWT zones)
Pump operation mode
2 (Request)
Domestic hot water settings [A.2.2]
DHW tank type
2
DHW pump
0 (No)
Thermostats [A.2.2]
Contact type main
2 (H/C request)
Contact type add.
2 (H/C request)
External sensor
0 (No)
Digital I/O PCB [A.2.2.6]
Ext. backup heat src
0 (No)
Solar kit
N/A
Alarm output
0 (Normally open)
Bottom plate heater
0 (No)
Demand PCB [A.2.2.7]
Demand PCB
0 (No)
Energy metering [A.2.2]
External kWh meter 1
0 (No)
External kWh meter 2
0 (No)
Capacities (energy metering) [A.2.3]
BUH: step 1
3 kW
Bottom plate heater
0 W
4.10.2
Space heating control
Setting
Default
Fill in…
Leaving water temperature: Main zone [A.3.1.1]
LWT setpoint mode
1 (WD)
Leaving water temperature: Additional zone [A.3.1.2]
LWT setpoint mode
1 (WD)
Leaving water temperature: Delta T source [A.3.1.3]
Heating
5°C
Leaving water temperature: Modulation [A.3.1.1.5]
Modulated LWT
0 (No)
Leaving water temperature: Emitter type [A.3.1.1.7]
Emitter type
1 (Slow)
4.10.3
Domestic hot water control [A.4]
Setting
Default
Fill in…
Type
2 (Scheduled
only)
Maximum setpoint
60°C
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).
INFORMATION
When the DHW tank booster mode is active, the risk of
space heating and capacity shortage comfort problems is
significant. In case of frequent domestic hot water
operation, frequent and long space heating interruptions
will happen.
4.10.4
Contact/helpdesk number [6.3.2]
Setting
Default
Fill in…
Contact/helpdesk number
—
5
Energy saving tips
Tips about room temperature
▪ Make sure the desired room temperature is NEVER too high, but
ALWAYS according to your actual needs. Each saved degree can
save up to 6% of heating costs.
▪ Do NOT increase the desired room temperature to speed up
space heating. The space will NOT heat up faster.
▪ When your system layout contains slow heat emitters (example:
under floor heating), avoid large fluctuation of the desired room
temperature and do NOT let the room temperature drop too low. It
will take more time and energy to heat up the room again.
▪ Use a weekly schedule for your normal space heating needs. If
necessary, you can easily deviate from the schedule:
▪ For shorter periods: You can overrule the scheduled room
temperature.
Example:
When you have a party, or when you
are leaving for a couple of hours.
▪ For longer periods: You can use the holiday mode.
Example:
When you stay at home during your holiday, or when you go
away during your holiday.
Tips about leaving water temperature
▪ In heating mode, a lower desired leaving water temperature
results in lower energy consumption and better performance.
▪ Set the desired leaving water temperature in accordance with the
heat emitter type.
Example:
Underfloor heating is designed for
lower leaving water temperature than radiators and heat pump
convectors.
Tips about DHW tank temperature
▪ Use a weekly schedule for your normal domestic hot water needs
(only in scheduled mode).
▪ Program to heat up the DHW tank to a preset value (Storage
comfort = higher DHW tank temperature) during the night,
because then space heating demand is lower.
▪ If heating up the DHW tank once at night is not sufficient,
program to additionally heat up the DHW tank to a preset value
(Storage eco = lower DHW tank temperature) during the day.
Summary of Contents for Altherma EHVZ08S18CB
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