Daikin EKMBUHBA6V3 [11/12] Troubleshooting
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EKMBUHBA6V3
Heater kit for air to water heat pump system
4PW63549-1A – 08.2010
Installation and operation manual
9
11. TROUBLESHOOTING
This section provides useful information for diagnosing and correcting
certain troubles which may occur in the heater kit.
This troubleshooting and related corrective actions may only be
carried out by your local Daikin technician.
11.1. General guidelines
Before starting the troubleshooting procedure, carry out a thorough
visual inspection of the heater kit and look for obvious defects such
as loose connections or defective wiring.
When a safety device was activated, stop the heater kit and find out
why the safety device was activated before resetting it. Under no
circumstances safety devices may be bridged or changed to a value
other than the factory setting. If the cause of the problem can not be
found, call your local dealer
.
11.2. General symptoms
Symptom 1: Space heating capacity shortage at low outdoor
temperatures
11.3. Error codes
When a safety device is activated, the user interface LED will be
flashing, and an error code will be displayed.
A list of all errors and corrective actions can be found in the table
below.
For more details regarding error codes, refer to chapter "Error codes"
in the installation manual of the indoor unit.
12. TECHNICAL SPECIFICATIONS
13. DISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with the applicable legislation.
Your product is marked with this symbol. This means that
electrical and electronic products shall not be mixed with
unsorted household waste.
Do not try to dismantle the system yourself: the dismantling of the
system, treatment of the refrigerant, of oil and other parts must be
done by a qualified installer in accordance with the applicable
legislation.
Units must be treated at a specialized treatment facility for re-use,
recycling and recovery. By ensuring this product is disposed off
correctly, you will help to prevent potential negative consequences for
the environment and human health. Please contact the installer or
local authority for more information.
WARNING
■ Before carrying out any maintenace or repair activity,
always switch off the circuit breaker on the supply
panel or remove the fuses.
■ Do not touch water pipes during and immediately after
operation as the pipes may be hot. Your hands may
suffer burns. To avoid injury, give the piping time to
return to normal temperature or be sure to wear
proper gloves.
■ Do not touch internal parts during and immediately
after operation. Your hands may suffer burns. To avoid
injury, give the piping time to return to normal
temperature or be sure to wear proper gloves.
POSSIBLE CAUSES CORRECTIVE ACTION
Backup heater operation is not
activated.
Check that the "backup heater
operation status" field setting [4-00]
is turned on. Refer to the chapter
"Field installations" in the installation
manual of the EKCB* indoor unit.
Check if booster heater and backup
heater are configured to operate
simultaneously (field setting [4-01].
The backup heater equilibrium
temperature has not been
configured correctly.
Raise the
'equilibrium temperature'
field setting [5-01] to activate backup
heater operation at a higher outdoor
temperature. Refer to the chapter
"Field installations" in the installation
manual of the EKCB* indoor unit
The over current fuse has operated. Check and switch over current fuse
back on.
The thermal protector has operated. Check and reset the thermal
protector by pushing the button.
The thermal fuse has operated. Check if the thermal fuse is open.
There is air in the system. Purge air.
Broken contactor. Check contactors and relays by use
of an ohmmeter.
Error
code
Failure cause Corrective action
AA Heater kit thermal protector or
thermal fuse error
• Make sure the circuit is filled
with water (no air inside).
• Make sure waterflow is
possible (open all valves in the
circuit).
Check the reset button of the
thermal protector.
If both the thermal protector and
the controller are reset, but the
AA error code persists, the
backup heater thermal fuse has
blown.
Contact your local dealer.
Heater capacity
• step 1
(kW)
3
• step 2
(kW)
6
Dimensions H x W x D
(mm)
575 x 380 x 170
Weight
(kg)
12
Connections
• water inlet G 1"1/4 (male)
• water outlet G 1"1/4 (female)
Maximum water pressure
(bar)
4
Power supply
• Phase 1~
• Frequency
(Hz)
50
• Voltage range
Minimum
Maximum
(V)
(V)
220
240
• Voltage tolerance –10%/+6%
• Maximum running current
(A)
26.1
• Recommended field fuse
(A)
32
Содержание
- Definitions 3
- Efinitions 3
- Installation and operation manual 3
- Meaning of used terms 3
- Meaning of warnings and symbols 3
- Eneral safety precautions 4
- General safety precautions 4
- Accessories 5
- Accessories supplied with the heater kit 5
- Ccessories 5
- General information 5
- General system setup 5
- Introduction 5
- Main components 5
- Model identification 5
- Ntroduction 5
- Overview of the heater kit 5
- Scope of this manual 5
- Verview of the heater kit 5
- Dimensions and service space 6
- Installation of the heater kit 6
- Nstallation of the heater kit 6
- Safety devices 6
- Selecting an installation location 6
- Connecting the water circuits 7
- Field wiring 7
- Installing the heater kit 7
- 0 9 ω 8
- At the interface point between the user s supply and the public system it is the responsibility of the installer or user of the equipment to ensure by consultation with the distribution network operator if necessary that the equipment is connected only to a supply with a system impedance 8
- Cable requirements 8
- Caution 8
- Connections to be made in the heater kit 8
- Equipment complying with en iec 61000 3 1 8
- Internal wiring parts table 8
- Is less than or equal to 8
- Less than or equal to 8
- Notice 8
- Power supply using the appropriate cable connect the power supply cable to the appropriate terminals 8
- Procedure 8
- Provided that the system impedance 8
- Refer to the chapter field wiring of the ekcb indoor unit installation manual for details where to use high voltage hv and low voltage lv cables 8
- Refer to the internal wiring diagram supplied with the heater kit on the inside of the heater kit the abbreviations used are listed below 8
- Refer to the wiring diagram sticker on the inside of the heater kit front panel 8
- Select all cables and wire sizes in accordance with relevant local and national regulations 8
- The electrical connection diagram can be found on the inside of the switch box cover 8
- The heater kit needs to be connected to a normal power supply connecting the heater kit to a benefit kwh rate power supply is only allowed in case the power supply is not shut off when benefit kwh rate is active for details on benefit kwh rate power supplies refer to the outdoor unit installation manual 8
- This equipment complies with en iec 61000 3 1 8
- Use a dedicated power circuit for the heater kit never use a power circuit shared by another appliance 8
- Pre operation checks 9
- Start up and configuration 9
- Up and configuration 9
- Aintenance and service 10
- Final check 10
- Final check and test run 10
- Inal check and test run 10
- Maintenance and service 10
- Normal operation 10
- Operating instructions 10
- Perating instructions 10
- Test run 10
- Disposal requirements 11
- Echnical specifications 11
- Error codes 11
- General guidelines 11
- General symptoms 11
- Isposal requirements 11
- Roubleshooting 11
- Technical specifications 11
- Troubleshooting 11
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