Daikin EKCBX008BCV3 [22/48] Connection of the valve control cables

Daikin EKCBH008BCV3 [22/48] Connection of the valve control cables
Installation manual
19
EKCBX/H008BCV3
Unit for air to water heat pump system
4P348533-1A – 2013.04
Connection of the thermostat cable
Connection of the thermostat cable depends on the application.
See also "8. Typical application examples" on page 7 and
"12.2. Room thermostat installation configuration" on page 21 for
more information 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 "12.2. Room
thermostat installation configuration" on page 21 for more
information.
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 "8. Typical application examples" on page 7 and "Dual set
point control" on page 29.
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
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 "12.3. Pump operation
configuration" on page 22 and field setting [F-00] in "[F] Option
setup" on page 34.
Connection of the valve control cables
Valve requirements
Power supply: 230 V AC
Maximum running current: 100 mA
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.
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.
2 Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
X2M
SP1SP2
123
4
SP1 First set point contact
SP2 Second set point contact
NOTICE
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 closed (NC) 2-way valve Normal open (NO) 2-way valve
NOTICE
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.
"Spring return 2-wire" valve "SPST 3-wire" valve
NC
5X2M 6 7
M
NO
5 6X2M 7
M
9X2M 8
10
M
9X2M 8
10
M

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