Daikin EKHBHE008BA3V3 Installation Manual page 21

Procedure
1 Using the appropriate cable, connect the power circuit to the
main circuit breaker as shown on the wiring diagram and the
illustration below.
2 Connect the earth conductor (yellow/green) to the earthing
screw on the X1M terminal.
3 Fix the cable with cable ties to the cable tie mountings to ensure
strain relief.
Note: only relevant field wiring is shown.
1x 230 V
Connection of the thermostat cable
Connection of the thermostat cable depends on the application.
See also "Typical application examples" on page 4
thermostat installation configuration" on page 21
and configuration options on pump operation in combination with a
room thermostat.
Thermostat requirements
Power supply: 230 V AC or battery operated
Contact voltage: 230 V.
Procedure
1 Connect the thermostat cable to the appropriate terminals as
shown on the wiring diagram and installation manual of the room
thermostat kit.
2 Fix the cable with cable ties to the cable tie mountings to ensure
strain relief.
3 Set DIP switch SS2-3 on the PCB to ON. See
installation configuration" on page 21
Connection of the first set point and second set point contacts
The connection of the set point contact is only relevant in case dual
set point contact is enabled.
See also "Typical application examples" on page 4
point control" on page 26.
Contact requirements
The contact shall be a voltage free contact that ensure 230 V
(100 mA).
Procedure
1 Connect the contact of first set point and second set point to the
appropriate terminals as shown in the figure below
X2M
SP1
1 2 3 4
SP2
SP2 SP1
2 Fix the cables with cable ties to the cable tie mountings to
ensure strain relief.
3 Depending on the required pump operation set DIP switch
SS2-3 and field setting [F-00]. See
configuration" on page 21
setup" on page 29.
Connection of the valve control cables
Valve requirements
Power supply: 230 V AC
Maximum running current: 100 mA
EKHBH/XE008BA
Indoor unit for air to water heat pump system
4PW56301-1A
X1M
X3M
L1 N
L1 N
and
for more information
"Room thermostat
for more information.
and
First set point contact
Second set point contact
"Pump operation
and field setting [F-00] in "[F] Option
Wiring the 2-way valve
1 Using the appropriate cable, connect the valve control cable to
the X2M terminal as shown on the wiring diagram.
NOTE
Normal closed (NC) 2-way valve
X2M
2 Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
Wiring the 3-way valve
1 Using the appropriate cable, connect the valve control cable to
the appropriate terminals as shown on the wiring diagram.
NOTE
"Room
"Spring return 2-wire" valve
2 Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
Wiring the bottom plate heater
1 Using the appropriate cable, connect the power supply cable to
the appropriate terminals as shown on the wiring diagram below.
"Dual set
bottom plate heater
2 Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
3 When routing out cables, make sure that these do not obstruct
mounting of the indoor unit cover.
4 Select the appropriate field setting values for the bottom plate
heater. See "[F-02]", "[F-03]", and
Wiring is different for a NC (normal closed) valve
and a NO (normal open) valve. Make sure to
connect to the correct terminal numbers as detailed
on the wiring diagram and illustrations below.
Normal open (NO) 2-way valve
5 6 7 X2M
M
NC
Two types of 3-way valves can be connected.
Wiring is different for each type:
"Spring return 2-wire" type 3-way valve
The 3-way valve should be fitted as such that
when the 3-way valve is idle (not activated),
the space heating circuit is selected.
"SPST 3-wire" type 3-way valve
The 3-way valve should be fitted as such that
when terminal ports 9 and 10 are electrified,
the domestic hot water circuit is selected.
"SPST 3-wire" valve
X2M 8 9 10
M
X2M 15a 15
2
1
X1Y
"[F-04]" on page
5 6 7
M
NO
X2M 8 9 10
M
29.
Installation manual
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