Heat Source Settings - Daikin Altherma EDLQ011-016CW1 Installer's Reference Manual

8 Configuration
CAUTION
The booster heater permission schedule is used to restrict
or allow booster heater operation based on a weekly
program. Advice: In
disinfection function, at least allow the booster heater (by
the weekly program) for minimum 4 hours starting from the
scheduled start-up of disinfection. If the booster heater is
restricted during disinfection, this function will NOT be
successful and the applicable warning AH will be
generated.
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.
INFORMATION
Disinfection function is restarted in case the domestic hot
water temperature drops 5°C below the disinfection target
temperature within the duration time.
INFORMATION
An AH error occurs if you do the following during
disinfection:
▪ Set the user permission level to Installer.
▪ Go to the DHW tank temperature home page (Tank).
▪ Press to interrupt the disinfection.
8.3.3

Heat source settings

Backup heater
Backup heater operation mode: defines when backup heater
operation is enabled or disabled. This setting is only overruled when
backup heating is required during defrost operation or malfunctioning
of the outdoor unit (when [A.6.C] is enabled).
# Code
[A.5.1.1] [4‑00] Backup heater operation:
▪ 0: Disabled
▪ 1 (default): Enabled
[A.5.1.3] [4‑07] Defines whether backup heater second
step is:
▪ 1: Allowed
▪ 0: NOT allowed
In this way it is possible to limit the
backup heater capacity.
N/A [5-00] Is backup heater operation allowed
above equilibrium temperature during
space heating operation?
▪ 1: NOT allowed
▪ 0: Allowed
Installer reference guide
70
order to avoid unsuccessful
Description
# Code
[A.5.1.4] [5‑01] Equilibrium temperature.
Outdoor temperature below which
operation of the backup heater is
allowed.
Range: –15°C~35°C (default: –4°C)
(step: 1°C)
Auto emergency
When the heat pump fails to operate, the backup heater and booster
heater can serve as an emergency heater and either automatically
or non-automatically take over the heat load.
▪ When auto emergency is set to Automatic and a heat pump failure
occurs:
▪ The backup heater will automatically take over the heat load.
▪ The booster heater will automatically take over the domestic hot
water production.
▪ When auto emergency is set to Manual and a heat pump failure
occurs, the domestic hot water and space heating operations will
stop and need to be recovered manually. The user interface will
then ask you to confirm whether the backup heater or booster
heater can take over the heat load or not.
When the heat pump fails, will appear on the user interface. If the
house is unattended for longer periods, we recommend to set
[A.6.C] Emergency to Automatic.
# Code
[A.6.C] N/A Emergency:
▪ 0: Manual (default)
▪ 1: Automatic
INFORMATION
If [4‑03]=1 or 3, then Emergency=Manual is not applicable
for the booster heater.
INFORMATION
The auto emergency setting can be set in the menu
structure of the user interface only.
INFORMATION
If a heat pump failure occurs and [A.6.C] is set to Manual,
the room frost protection function, the underfloor heating
screed dryout function, and the water pipe antifreeze
function will remain active even if the user does NOT
confirm emergency operation.
Bivalent
Applies only to installations with an auxiliary boiler (alternating
operation, parallel connected). The purpose of this function is to
determine — based on the outdoor temperature (possibility 1) or on
energy prices (possibility 2) — which heating source can/will provide
the space heating, either the outdoor unit or an auxiliary boiler.
The field setting "bivalent operation" applies only to the space
heating operation of the outdoor unit and the permission signal for
the auxiliary boiler.
Possibility 1
The installer can set a temperature below which the boiler will
always operate when the electricity prices (High, Medium, Low) are
"0" in the menu structure.
NOTICE
Do NOT use overview settings!
EBLQ+EDLQ011~016CAV3+W1 + EK(2)CB07CAV3 +
Daikin Altherma low temperature monobloc
Description
Description
EKMBUHCA3V3+9W1
4P522034-1 – 2018.01