Indoor Switch Box Connections; Connection Of Control Signals And Thermistor Cable; Connection Heater Kit Signals; Connection Of The Thermostat Cable - Daikin EBHQ006BAV3 Installation Manual

12.10.Indoor switch box connections

Connection of control signals and thermistor cable

F1B
X3M
X4M
FU1
X14M
4 1 2
1 Indoor unit control signals
2 Indoor unit pump and heater control signals
3 Thermistor interconnection cable
4 In case no EKHW* option with booster heater is
installed, connect an extra ground wire to the
ground terminal.
1 Remove the control box cover.
2 Using the appropriate cables, route and connect the control
cables to the appropriate terminals as shown on the wiring
diagram supplied with the unit and according to the figure above.
3 Route and connect the thermistor interconnection cable as
shown in the figure above.
Be sure not to force the connectors. The connectors lock in one
position only. Check both connector sides for correct matching.
4 Route the cables through the cable holders and secure the
cables to the cable tie mountings with cable ties as shown in the
figure above.
5 Close the control box cover. Take care not to pinch any wires.

Connection heater kit signals

Refer to the installation manual of the EKMBUH heater kit.
EBHQ006+008BAV3 + EKCBX/H008BAV3
Unit for air to water heat pump system
4PW64602-1A – 09.2010
SS2
X9A
X13A
FU2
X2M
3

Connection of the thermostat cable

Connection of the thermostat cable depends on the application.
See also "8. Typical application examples" on page 11 and
"13.2. Room thermostat installation configuration" on page 28 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 "13.2. Room
thermostat installation configuration" on page 28 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 11 and "Dual set
point control" on page 35.
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
1 2 3 4
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 "13.3. Pump operation
configuration" on page 29 and field setting [F-00] in "[F] Option
setup" on page 39.
SP1 First set point contact
SP2 Second set point contact
Installation manual
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