Daikin Altherma EHVH04S23DAV - Page 67

8 Configuration
Installer reference guide
67
ERGA04~08DAV3(A) + EHVH04+08S23DAV
Daikin Altherma – Low temperature split
4P499573-1 – 2017.12
# Code Description
[9.3.7] [5-01] Equilibrium temperature: Outdoor
temperature below which operation of
the backup heater is allowed.
Range: ‑15°C~35°C
Operation
# Code Description
[9.3.8] [4‑00] Backup heater operation:
▪ 0: Restricted
▪ 1: Allowed
▪ 2: Only DHW Enabled for domestic hot
water, disable for space heating
INFORMATION
Only for systems with integrated domestic hot water tank: If
backup heater operation during space heating needs to be
limited but can be allowed for domestic hot water
operation, then set [4‑00] to 2.
Anti-legionella heater
Capacity
The capacity of the anti-legionella heater must be set for the energy
metering and/or power consumption control feature to work properly.
When measuring the resistance value of the anti-legionella heater,
you can set the exact heater capacity and this will lead to more
accurate energy data.
# Code Description
[9.4.1] [6‑02] Capacity [kW]. Only applies to domestic
hot water tank with an internal anti-
legionella heater. The capacity of the
anti-legionella heater at nominal voltage.
Range: 0~10kW
BSH allowance schedule
Program when the anti-legionella heater can operate. You can set a
schedule for the anti-legionella heater here using the schedule
screen. Two actions per day are allowed in a week schedule. For
more information, see "8.3.8 Schedule screen: Example" on
page51.
Example: Only allow the anti-legionella heater to operate during the
night.
BSH eco timer
# Code Description
[9.4.3] [8-03] Anti-legionella heater delay timer.
Start-up delay time for the anti-legionella
heater when domestic hot water mode is
active.
▪ When domestic hot water mode is
NOT active, the delay time is
20minutes.
▪ The delay time starts from anti-
legionella heater ON temperature.
▪ By adapting the anti-legionella heater
delay time versus the maximum
running time, you can find an optimal
balance between the energy efficiency
and the heat up time.
▪ If the anti-legionella heater delay time
is set too high, it might take a long
time before the domestic hot water
reaches its set temperature.
▪ The setting [8‑03] is only meaningful if
setting [4‑03]=1. Setting [4‑03]=0/2/3/4
limits the anti-legionella heater
automatically in relation to heat pump
operation time in domestic water
heating mode.
▪ Make sure that [8‑03] is always in
relation with the maximum running
time [8‑01].
Range: 20~95 minutes
Operation
# Code Description
[9.4.4] [4-03] Defines the operation permission of the
anti-legionella heater depending on
ambient, domestic hot water temperature
or operation mode of heat pump. This
setting is only applicable in reheat mode
for applications with separate domestic
hot water tank. When setting
[4‑03]=1/2/3/4, the anti-legionella heater
operation can still be restricted by the
anti-legionella heater allowance
schedule.
[9.4.4] [4-03] ▪ 0: Anti-legionella heater operation is
NOT allowed except for "Disinfection
function" and "Powerful domestic
water heating".
Only use this in case the heat pump
capacity can cover the heating
requirements of the house and
domestic hot water during the
complete heating season.
The anti-legionella heater will not be
allowed to operate when T
a
<[5‑03] and
[5‑02]=1. The domestic hot water
temperature can be maximum the heat
pump OFF temperature.
[9.4.4] [4-03] ▪ 1: Anti-legionella heater operation is
allowed when required.
Final English - Tanslations in progress