Daikin EKHVH008BB6V3, Installation Manual

Page: 27 / 48

EKHVH/X00 EKHVH/9WN
Daikin Altherma indoor unit
4PW64329-1 – 07.2010
Installation manual
25
The following table summarizes the required configuration and wiring
at the terminal block (X2M: 1, 2, 4) in the switch box. Pump operation
is listed in the third column. The three last columns indicate whether
the following functionality is available on the user interface (UI) or
handled by the set point selection contacts SP1 and SP2:
• space heating or cooling on/off (
y
)
• heating/cooling changeover ( = )
• heating and cooling schedule timers (
pr
)
8.4. Domestic hot water tank installation
configuration
8.5. Pre-operation checks
After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit must be closed, only then can
the unit be powered up.
1 Installation
Check that the unit is properly installed to avoid abnormal noises
and vibrations when starting the unit.
2 Field wiring
Make sure that the field wiring between local supply panel and
indoor unit, outdoor unit and indoor unit, indoor unit and valves
(when applicable), indoor unit and room thermostat (when
applicable), and indoor unit and domestic hot water tank has
been carried out according to the instructions described in the
chapter
"7.3. Field wiring" on page 19 , according to the wiring
diagrams and according to European and national regulations.
3 Power supply voltage
Check the power supply voltage on the local supply panel. The
voltage must correspond to the voltage on the identification label
of the unit.
4 Earth wiring
Make sure that the earth wires have been connected properly
and that the earth terminals are tightened.
5 Insulation test of the main power circuit
Using a mega tester for 500 V, check that the insulation
resistance of 2 M
Ω
or more is attained by applying a voltage of
500 V DC between power terminals and earth. Never use the
mega tester for the transmission wiring.
6 Fuses or protection devices
Check that the fuses or the locally installed protection devices
are of the size and type specified in the chapter
"Technical
specifications" on page 44 . Make sure that neither a fuse nor a
protection device has been bypassed.
7 Internal wiring
Visually check the switch box on loose connections or damaged
electrical components.
8 Pipe size and pipe insulation
Be sure that correct pipe sizes are installed and that the
insulation work is properly executed.
9 Stop valves
Be sure that the stop valves are open on both liquid and gas
side.
10 Damaged equipment
Check the inside of the unit on damaged components or
squeezed pipes.
11 Refrigerant leak
Check the inside of the unit on refrigerant leakage. If there is a
refrigerant leak, call your local dealer.
12 Water leak
Check the inside of the unit on water leakage. in case there is a
water leakage close the water inlet and water outlet shut-off
valves and call your local dealer.
13 Air purge valve
Make sure the air purge valve is open (at least 2 turns).
When dual set point is enabled, the "forced continuous
pump operation" is not possible. When SS2-3 is ON while
SP1 and SP2 are both closed, the pump operation will be
the same operation as "with room thermostat" and the
second set point will be the applicable set point. Refer to
"[7] Dual set point control" on page 30 .
Dual set point
Configuration Pump operation y y
y y
= =
= =
p p
p pr
r
r r
• [7-02]=1
• SS2-3 = OFF
• wiring: determined by
leaving water
temperature
(a)
(a) The pump will stop when space heating/cooling is turned off or when the water
reaches the desired water temperature as set on the user interface. With space
heating/cooling turned on, the pump will then run every 5 minutes during 3
minutes to check the water temperature.
UI UI UI
• [7-02]=1
• SS2-3 = ON
• wiring: on when main or/and
sub set point is
requested SP2/SP1 UI —
SP1 = First set point contact
SP2 = Second set point contact
■
When no domestic hot water tank is
installed, toggle switch SS2-2 should be set to
OFF (default).
■
When a domestic hot water tank is installed,
toggle switch SS2-2 should be set to ON .
When SS2-3 was set to ON without all necessary and
correct wiring connections between indoor unit and
switchbox of the domestic hot water tank, the error code
AC
will be displayed on the user interface.
X2M
SP1 SP2
1 2 3 4
X2M
1 2 3 4
SP1 SP2
4 3 2 1
ON
OFF
4 3 2 1
ON
OFF
DANGER
Switch off all relevant power supply before making any
connections.