To Connect The Shut-Off Valve; To Connect The Electricity Meters; To Connect The Domestic Hot Water Pump; To Connect The Alarm Output - Daikin ERGA08DAV3 Installer's Reference Manual

7 Installation
NOTICE
Do NOT cut or remove the backup heater power supply
cable.
7.9.10

To connect the shut-off valve

INFORMATION
Shut-off valve usage example. In case of one LWT zone,
and a combination of underfloor heating and heat pump
convectors, install a shut-off valve before the underfloor
heating to prevent condensation on the floor during cooling
operation. For more information, see the installer reference
guide.
1 Connect the valve control cable to the appropriate terminals as
shown in the illustration below.
NOTICE
Wiring is different for a NC (normally closed) valve and a
NO (normally open) valve.
NO
M2S
21 28
X2M
X1M
2 Fix the cable with cable ties to the cable tie mountings.
7.9.11

To connect the electricity meters

INFORMATION
In case of an electrical meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X5M/6 and X5M/4; the negative polarity to X5M/5 and
X5M/3.
1 Connect the electrical meters cable to the appropriate terminals
as shown in the illustration below.
S3S S2S
X2M
X1M
2 Fix the cable with cable ties to the cable tie mountings.
7.9.12

To connect the domestic hot water pump

1 Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.
Installer reference guide
42
NC
M2S
21 29
X2M
X1M
3 4 56 X5M
M
M2P
1~
1 2
X2M
X1M
2 Fix the cable with cable ties to the cable tie mountings.
7.9.13

To connect the alarm output

1 Connect the alarm output cable to the appropriate terminals as
shown in the illustration below.
b
7 9
X1M
X2M
X1M
YC
Y1
a
A4P
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.
7.9.14 To connect the space heating ON/OFF
output
1 Connect the space heating ON/OFF output cable to the
appropriate terminals as shown in the illustration below.
b
7 9
X1M
X2M
X4 X3 X2 X1
X1M
X2M
YC
Y2
a
A4P
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.
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
X5M
X5M
A5P
X5M
A5P
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06