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Daikin EKHWP300B [23/36] Service and maintenance
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7 Service and maintenance
Installation and operating manual
23
EKHW(D/C/P)(300/500)(P)B
Daikin Altherma ST (Hot water storage tank)
008.1633099_00 – 06/2020
Short name Meaning
HYW Hydraulic shunt
MAG Diaphragm expansion vessel
P High-efficiency pump
P
1
Central heating pump
P
HP
Heating circulation pump
P
K
Boiler circuit pump
P
MI
Mixing circuit pump
P
S
Solar operating pump +
P
Z
Circulation pump
PWT Plate heat exchanger (condenser)
RLB Return temperature limiter
RoCon BF Boiler controller
RT Room thermostat
S#B Hot water storage tank EKHWP500Bx
S#I Hot water storage tank EKHWCB500Bx
S#K Hot water storage tank EKHWCH500PBx
S#L Hot water storage tank EKHWCB500PBx
S#P Hot water storage tank EKHWDB500Bx
SOL-M1 Solar communication module SOL-PAC LT/HT
SK Solar panel field
SV Safety overpressure valve
T
AU
Outside temperature sensor
T
DHW
Storage tank temperature sensor (heat generator)
T
K
Solar collector temperature sensor
T
MI
Mixer circuit flow temperature sensor
T
R
Solar return flow temperature sensor
T
RH
Return flow temperature sensor heating circuit
T
S
Solar storage tank temperature sensor
T
V
Solar flow temperature sensor
V Fan (vaporiser)
VS Protection against scalding VTA32
7 Service and maintenance
The hot water storage tank is practically maintenance free as a
result of its design. No corrosion protection equipment is required
(such as sacrificial anodes). This means there is no need for
maintenance work such as changing the protective anodes or
cleaning the inside of the storage tank.
Regular inspection of the domestic hot water storage tank
guarantees a long working life and fault-free operation.
DANGER: RISK OF ELECTROCUTION
Live parts can cause an electric shock on contact and
cause fatal burns or injuries.
▪ If there is an electric immersion heater or control and
pump unit installed in the hot water storage tank then
these components must be isolated from the power
supply before starting the work (e.g. fuse, main switch
switched off and secured against inadvertent switching
on again).
DANGER: RISK OF ELECTROCUTION
All work performed on live components must be carried out
in accordance with the proper procedures, otherwise there
may be a danger to the life and health of individuals and
the function may be impaired.
▪ Repair of damage to current-carrying components only
by heating specialists authorised and recognised by the
energy supply company.
7.1 Periodic checks
The filling water can evaporate slightly over a period of time as a
result of the design. This process does not represent a technical
fault, but is rather a physical property which requires periodic
checking and correction of the water level by the operator if
necessary.
▪ Visual check of the water storage tank level (filling level indicator)
▪ Refill water if necessary (see "3.3.2Buffer tank"[415]) and also
determine the cause of the low water level and rectify it.
7.2 Annual inspection
▪ Carry out a functional inspection of the electric immersion heater
by checking the temperature display and the switching states in
the individual modes: see the associated installation and operating
instructions.
▪ If a solar system is connected and is in operation, switch it off.
▪ Visual inspection of the general condition of the domestic hot
water storage tank.
▪ Visual check of the water storage tank level (filling level indicator)
▪ If a drain-back solar system is installed, wait until solar
panels are drained completely.
▪ Refill the water if necessary (see "3.3.2Buffer tank"[415]) and
also determine the cause of the low water level and rectify it.
▪ Check the connection of the safety overflow and drain hose for
leaks, free drainage and gradient.
▪ If necessary, clean the safety overflow and drain hose and
reinstall it; replace damaged parts.
▪ Visual check of connections and pipes. In the event of damage,
determine the cause.
▪ Replace defective parts.
▪ Check all electrical components, connections, and cables.
▪ Repair damaged parts or replace them.
▪ Check the water pressure of the cold water supply (<10bar)
▪ and if necessary the fitting or adjustment of the pressure
reducer.
▪ Clean the plastic storage tank with soft cloths and a mild
cleaning agent. Do not use cleaning agents containing
aggressive solvents, as this will damage the plastic surface.
Содержание
- Daikin altherma st hot water storage tank 1
- Installation and operating manual 1
- Children aged 8 and above and by persons with restricted physical sensory or mental capabilities or with a lack of experience and knowledge if they are under supervision or if they have been instructed in the safe use of the equipment and understand the 2
- Devices that have not been set up and installed correctly can impair the function of the device and or cause serious or fatal injury to the user 2
- Disregarding the following safety instructions may result in serious physical injury or death 2
- General safety precautions 2
- General safety precautions 2 2
- Hydraulic 20 2
- Installation and operating manual 2
- List of contents 2
- List of keywords 32 2
- Particular safety instructions 2
- Product description 6 2
- Service and maintenance 23 2
- Servicing connection and initial commissioning must only be carried out by persons who are authorised and who have successfully completed qualifying technical or vocational training and who have taken part in advanced training sessions recognised by the relevant responsible authorities for the specific activity these include in particular certified heating engineers qualified electricians and hvac specialists who because of their professional training and expert knowledge have experience in the professional installation and maintenance of heating cooling and air conditioning systems as well as hot water storage tanks 2
- Set up and installation 13 2
- Start up 16 2
- Taking out of service 17 2
- Technical data 24 2
- This device must only be used by 2
- Warning 2
- Work on the unit such as setup 2
- Accordance with iec 60335 1 via a separator device which exhibits contact separation in all poles with a contact opening distance that provide full disconnection in accordance with overvoltage category iii 3
- All the electrical work must only be 3
- Can be drained the instructions must be observed 3
- Carried out by electrically qualified experts and with consideration of the local and national regulations and the instructions in this manual check that a suitable electrical circuit is being used inadequate capacity of the power circuit or improperly executed connections can cause electrocution or fire 3
- Dangers arising therefrom children must not play with the device cleaning and user maintenance must not be carried out by children without supervision 3
- General safety precautions 3
- Make up the power supply in 3
- Meaning of warnings and symbols 3
- Observing the instructions 3
- The storage tank and hot water circuit 3
- Before starting any work on the indoor unit and secure against being switched on inadvertently 4
- Device installation room 4
- Devices that have not been set up and installed correctly can impair the function of the device and or cause serious or fatal injury to the user 4
- Do not leave any tools or other 4
- Electrical installation 4
- General 4
- General safety precautions 4
- Intended use 4
- Objects below the hood of the unit after finishing installation or maintenance work 4
- Requirements of the heating and filling water 4
- Safety instructions for installation and operation 4
- Servicing connection and initial commissioning must only be carried out by persons who are authorised and who have successfully completed qualifying technical or vocational training and who have taken part in advanced training sessions recognised by the relevant responsible authorities for the specific activity these include in particular certified heating engineers qualified electricians and hvac specialists who because of their professional training and expert knowledge have experience in the professional installation and maintenance of heating cooling and air conditioning systems as well as hot water storage tanks 4
- Switch off the external main switch 4
- Warning 4
- Work on the unit such as setup 4
- General safety precautions 5
- Handover to operator and warranty 5
- Heating and sanitary side connection 5
- Instructing the owner 5
- Operation 5
- Warranty conditions 5
- Design and components 6
- Product description 6
- Product description 7
- 2 2 500 l models 8
- Product description 8
- Unpressurised system drainback 8
- 2 3 300 l models 9
- Product description 9
- 2 4 500 l p models 10
- Pressurised system 10
- Product description 10
- Brief description 11
- Product description 11
- Dirt filter 12
- Electric immersion heaters 12
- Kfe filling connection 12
- Non return valves 12
- Optional accessories 12
- Product description 12
- Scalding protection 12
- Scope of delivery 12
- Solar storage tank extension kit 12
- Important information 13
- Installing the hot water storage tank 13
- Set up 13
- Set up and installation 13
- Hydraulic system connection 14
- Important information installation 14
- Installation 14
- Set up and installation 14
- Buffer tank 15
- Filling topping up 15
- Hot water heat exchanger 15
- Set up and installation 15
- Start up 16
- Draining the storage tank 17
- Taking out of service 17
- Temporary shutdown 17
- Taking out of service 18
- With pre mounted kfe filling connection 18
- With subsequently fitted kfe filling connection 18
- Without kfe filling connection 18
- Drain the solar panel circuit only pressurised system 19
- Draining the heating circuit and hot water circuit 19
- Final shutdown 19
- Taking out of service 19
- 6 1 standard connection schematic with heat pump and drain back solar system 20
- Connection schemata 20
- Hydraulic 20
- Solution for low temperature heat pumps 20
- 6 2 standard connection schematic for the incorporation of several hot water storage tanks large installations 21
- Hydraulic 21
- Solution for systems with high hot water demand 21
- Hydraulic 22
- Solution for oil or gas condensing boilers 22
- Solution for sanitary side connection 22
- Annual inspection 23
- Periodic checks 23
- Service and maintenance 23
- 8 1 type plate 24
- Information 24
- Information on the type plate 24
- Several hot water storage tanks listed here are probably not offered in certain countries 24
- Technical data 24
- Basic data 25
- Technical data 25
- Technical data 26
- Technical data 27
- Technical data 28
- Technical data 29
- 8 2 hot water performance with reheating 30
- 8 3 pressure drop characteristic for the heat exchanger 30
- 8 4 hot water performance without reheating 30
- 8 5 pressure drop characteristic for the heat exchanger 30
- Ekhwd ekhwc 30
- Information 30
- L min can in certain rare circumstances lead to noises in the domestic water heat exchanger of the hot water storage tank 30
- Maximal available hot water volume at 40 c is shown as a function of the draw off rate in 8 2 hot water performance with 30
- Maximal available hot water volume at 40 c is shown as a function of the draw off rate in 8 4 hot water performance without 30
- Performance diagrams 30
- Reheating 4 30 for 10 c cold water entry temperature and 60 c storage tank temperature at draw off start and reheating with 20 kw 30
- Reheating 4 30 for 10 c cold water entry temperature and 60 c storage tank temperature at draw off start without reheating 30
- Technical data 30
- Technical data 31
- Tightening torque 31
- List of keywords 32
- Numerics 32
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