Connection Of The Valve Control Cables; Start-Up And Configuration; Dip Switch Settings Overview; Room Thermostat Installation Configuration - Daikin EBHQ006BAV3 Installation Manual

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.
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
X2M 5 6 7
M
NC
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.
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
X2M 8 9 10
M
2 Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
Installation manual
28
Normal open (NO) 2-way valve
X2M 5 6 7
M
NO
"SPST 3-wire" valve
X2M 8 9 10
M
13. S -
TART UP AND CONFIGURATION
The outdoor unit and indoor unit should be configured by the installer
to match the installation environment (outdoor climate, installed
options, etc.) and user expertise.
DANGER
It is important that all information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: ELECTRICAL SHOCK
See "2. General Safety precautions" on page 2.

13.1. DIP switch settings overview

DIP switch SS2 is located on the control box PCB (see "Indoor unit
switch box" on page 7) and allows configuration of domestic hot
water tank installation, room thermostat connection and pump
operation.
WARNING
Switch off the power supply before opening the control box
service panel and making any changes to the DIP switch
settings.
DIP
switch
SS2 Description
1 Not applicable for installer
2 Domestic hot water tank
installation
(see "13.4. Domestic hot
water tank installation
configuration" on page 30)
3 Room thermostat
connection
(see "13.2. Room
thermostat installation
configuration" on page 28)
4 (a)
This setting decides the
operation mode of the
heat pump when there is a
simultaneous demand for
more space
heating/cooling and
domestic water heating.
(a) Only applicable in case DIP switch 2 = ON.
(b) Heating/cooling or domestic water heating mode can be restricted by schedule
timer and/or field settings (4, 5, 8).
13.2. Room thermostat installation configuration
When no room thermostat is connected to
the indoor unit, toggle switch SS2-3 should be
set to OFF.
When the room thermostat is connected to
the indoor unit, toggle switch SS2-3 should be
set to ON.
On the room thermostat, confirm the correct settings (6®02=yes,
6®05=9, 6®06=5) to prevent the pump from repeatedly turning on
and off (i.e. chattering), and thereby impacting the lifetime of
the pump.
1 2 3 4
ON OFF
— (Default)
Installed Not installed
(Default)
Room thermostat No room
connected thermostat
connected
(Default)
Heating/cooling Priority to highest
priority demand side
1 2
1 2
EBHQ006+008BAV3 + EKCBX/H008BAV3
Unit for air to water heat pump system
4PW64602-1A – 09.2010
(b)
3 4
3 4