Daikin EBHQ008BAV3 [3/20] Afety precautions
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Daikin EBHQ008BAV3 [3/20] Afety precautions

Daikin EBHQ008BAV3 [3/20] Afety precautions
EBHQ006+008BAV3 + EKCBX/H008BAV3
Unit for air to water heat pump system
4PW64603-1A – 08.2010
Operation manual
2
Accessories:
Equipment which is delivered with the unit and which needs to be
installed according to instructions in the documentation.
Optional equipment:
Equipment which can optionally be combined to the products as per
the subject of this manual.
Field supply:
Equipment which needs to be installed according to instructions in
this manual, but which are not supplied by Daikin.
2. GENERAL SAFETY PRECAUTIONS
The precautions listed here are divided into the following four types.
They all cover very important topics, so be sure to follow them
carefully.
3. INTRODUCTION
3.1. This manual
This manual describes how to start up and switch off the unit, set
parameters and configure the schedule timer by means of the
controller, maintain the unit and solve operational problems.
3.2. This unit
These units are used for both heating and cooling applications. The
units can be combined with Daikin fan coil units, floor heating
applications, low temperature radiators, domestic hot water tank
(option) and solar kit (option).
Heating/cooling units and heating only units
The monoblock unit range consists of two main versions: a
heating/cooling (uses EKCBX indoor unit) version and a heating only
(uses EKCBH indoor unit) version.
Both versions are delivered with an separate backup heater for
additional heating capacity during cold outdoor temperatures. The
backup heater also serves as a backup in case of malfunctioning of
the unit and for freeze protection of the outside water piping during
winter time
■ Domestic hot water tank (option)
An optional EKHW* domestic hot water tank with integrated
3 kW electrical booster heater can be connected to the indoor
unit. The domestic hot water tank is available in three sizes: 150,
200 and 300 litre. Refer to the domestic hot water tank
installation manual for further details.
■ Solar kit for domestic hot water tank (option)
For information concerning the EKSOLHW solar kit, refer to the
installation manual of that kit.
■ Digital I/O PCB kit (option)
An optional EKRP1HB digital I/O PCB can be connected to the
indoor unit and allows:
■ remote alarm output
■ heating/cooling ON/OFF output
■ bivalent operation (permission signal for the auxiliary boiler)
Refer to the operation manual of the indoor unit and to the
installation manual of the digital I/O PCB for more information.
Refer to the wiring diagram or connection diagram for
connecting this PCB to the unit.
■ Bottom plate heater EKBPHT (refer to the installation manual)
(option)
■ Remote thermostat kit (option)
An optional room thermostat EKRTW, EKRTWA, or EKRTR can
be connected to the indoor unit. Refer to the installation manual
of the room thermostat for more information.
To obtain more information concerning these option kits, please refer
to dedicated installation manuals of the kits.
DANGER: ELECTRICAL SHOCK
Switch off all power supply before removing the switch box
service panel or before making any connections or
touching electrical parts.
Do not touch any switch with wet fingers. Touching a switch
with wet fingers can cause electrical shock. Before
touching electrical parts, turn off all applicable power
supply.
To avoid electric shock, be sure to disconnect the power
supply 1 minute or more before servicing the electrical
parts. Even after 1 minute, always measure the voltage at
the terminals of main circuit capacitors or electrical parts
and, before touching, be sure that those voltages are
50 V DC or less.
When service panels are removed, live parts can easily be
touched by accident. Never leave the unit unattended
during installation or servicing when the service panel is
removed.
DANGER: DO NOT TOUCH PIPING AND INTERNAL
PART S
Do not touch the refrigerant piping, water piping or internal
parts during and immediately after operation. The piping
and internal parts may be hot or cold depending on the
working condition of the unit.
Your hand may suffer burns or frostbite if you touch the
piping or internal parts. To avoid injury, give the piping and
internal parts time to return to normal temperature or, if
you must touch them, be sure to wear protective gloves.
WARNING
■ Never directly touch any accidental leaking
refrigerant. This could result in severe wounds caused
by frostbite.
■ Do not touch the refrigerant pipes during and
immediately after operation as the refrigerant pipes
may be hot or cold, depending on the condition of the
refrigerant flowing through the refrigerant piping,
compressor, and other refrigerant cycle parts. Your
hands may suffer burns or frostbite if you touch the
refrigerant pipes. To avoid injury, give the pipes time to
return to normal temperature or, if you must touch
them, be sure to wear proper gloves.
CAUTION
Do not rinse the unit. This may cause electric shocks or
fire.
CAUTION
For "Checks before initial start-up" and "Initial start-up"
procedures refer to the installation manual of this unit.

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