Installer reference guide
13
EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 – 2012.05
5 Application guidelines
Q
Install the digital I/O PCB (option EKRP1HB).
Q
Connect X1 and X2 (changeover to external heat source) on the
PCB to the auxiliary boiler thermostat.
Q
To setup the heat emitters, see setting up the space
heating/cooling application guidelines).
Configuration
Via the user interface (quick wizard):
Q
Set the use of a bivalent system as external heat source.
Q
Set the bivalent temperature and hysteresis.
Changeover to external heat source decided by an auxiliary
contact
Q
Only possible in external room thermostat control AND one
leaving water temperature zone (see setting up space
heating/cooling application guideline).
Q
The auxiliary contact can be:
Q
An outdoor temperature thermostat
Q
An electricity tariff contact
Q
A manually operated contact
Q
…
Q
Setup: Connect the following field wiring:
5.4
Setting up the domestic hot water tank
The DHW tank can be:
Q
Integrated in the indoor unit
Q
Installed standalone as option
5.4.1 System layout – Integrated DHW tank
5.4.2 System layout – Standalone DHW tank
NOTICE
Q
Make sure the bivalent hysteresis has enough
differential to prevent frequent changeover between
indoor unit and auxiliary boiler.
Q
Because the outdoor temperature is measured by the
outdoor unit air thermistor, install the outdoor unit in
the shadow so that it is NOT influenced or turned
ON/OFF by direct sunlight.
Q
Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.
B
TI
Boiler thermostat input
A
Auxiliary contact (normal closed)
H
Heating demand room thermostat (optional)
K1A
Auxiliary relay for activation of indoor unit (field supply)
K2A
Auxiliary relay for activation of boiler (field supply)
Indoor
Indoor unit
Auto
Automatic
Boiler
Boiler
NOTICE
Q
Make sure the auxiliary contact has enough differential
or time delay to prevent frequent changeover between
indoor unit and auxiliary boiler.
Q
If the auxiliary contact is an outdoor temperature
thermostat, install the thermostat in the shadow so that
it is NOT influenced or turned ON/OFF by direct
sunlight.
Q
Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.
L
N
H
Com
A
K2A
K1A
X2M
BTI
K2A
K1A
Indoor/Auto/Boiler
1 2 3 4
X Y
Indoor
a
Outdoor unit
b
Indoor unit
c
Heat exchanger
d
Backup heater
e
Pump
f
Motorised 3-way valve
g
DHW tank
h
Shut-off valve
i
Collector (field supply)
FHL1...3
Under floor heating
UI
User interface
a
Outdoor unit
b
Indoor unit
c
Heat exchanger
d
Backup heater
e
Pump
f
Shut-off valve
g
Motorised 3-way valve
h
Collector (field supply)
i
DHW tank
j
Heat exchanger coil
FHL1...3
Under floor heating
FHL1
FHL2
FHL3
M
UI
a
b c
d
h
h
i
f
e
g
FHL1
FHL2
FHL3
M
a
b c
d
e
h
f
g
f
i
j
Summary of Contents for ERLQ011CA
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