7 Installation
Installer reference guide
46
ERGA04~08DAV3(A) + EHVH/X04+08S18+23DA
Daikin Altherma – Low temperature split
4P495248-1 – 2017.12
X1M
X2M
A4P
X5M
X1M
YC
Y1
Y2
Y3
Y4
YC
Y2
a
7 9
b
a
Installation of EKRP1HB is required.
b
Prewiring between X2M/7+9 and Q1L (= thermal protector
backup heater). Do NOT change.
2
Fix the cable with cable ties to the cable tie mountings.
7.9.15
To connect the changeover to external
heat source
1
Connect the changeover to external heat source cable to the
appropriate terminals as shown in the illustration below.
X1M
X2M
A4P
X5M
X1M
YC
Y1
Y2
Y3
Y4
X2 X1
X2M
X4 X3
N L
a
a
Installation of EKRP1HB is required.
2
Fix the cable with cable ties to the cable tie mountings.
7.9.16
To connect the power consumption digital
inputs
1
Connect the power consumption digital inputs cable to the
appropriate terminals as shown in the illustration below.
X1M
X2M
A8P
X5M
1 2 3 4 5
X801M
S6S
S7S
S8S
S9S
a
a
Installation of EKRP1AHTA is required.
2
Fix the cable with cable ties to the cable tie mountings.
7.9.17
To connect the safety thermostat (normal
closed contact)
1
Connect the safety thermostat (normal closed) cable to the
appropriate terminals as shown in the illustration below.
X1M
X2M
X5M
9 10
2
Fix the cable with cable ties to the cable tie mountings.
NOTICE
Make sure to select and install the safety thermostat
according to the applicable legislation.
In any case, to prevent unnecessary tripping of the safety
thermostat, it is recommended that …
▪ … the safety thermostat is automatically resettable.
▪ … the safety thermostat has a maximum temperature
variation rate of 2°C/min.
▪ … there is a minimum distance of 2 m between the
safety thermostat and the 3‑way valve.
INFORMATION
After it is installed, do NOT forget to configure the safety
thermostat. Without configuration, the indoor unit will
ignore the safety thermostat contact.
INFORMATION
The preferential kWh rate power supply contact is
connected to the same terminals (X5M/9+10) as the safety
thermostat. It is only possible for the system to have
EITHER preferential kWh rate power supply OR a safety
thermostat.
Final English - Tanslations in progress