Strom-Electrical SEIH3KM1 User manual

STROM-
ELECTRICAL
www.strom-electrical.com
SEIH3KM1, SEIH5KM1
Installation Manual
Issue 1 2015
STROM-
ELECTRICAL
www.strom-electrical.com

INTRODUCTION
Thank you for purchasing your Strom-Electrical instaneous water heater, we are very proud of our products
and we are sure that you will be happy with the years of service you get from your model. This product has
been designed to operate at mains pressure and deliver instant hot water.
SPECIFICATION
MODEL SEIH3KM1 SEIH5KM1
Body Material High Strength ABS Casing
Voltage 220-240v
Rated Frequency 50-60Hz
Power 3.5kW 5.0kW
Rated Current 16A 21.7A
Supplied Cable Size 2.5mm2
Overheat Protection 60oC
Thermal Cut-Out 95oC
Control Mode Electronic Control
Minimum Water Flow 1.8L/Min
Water Connections G1/2”
Working Pressure 0.02-0.6mPa
IMPORTANT NOTICE
• For your satisfaction and safety, read all instructions before installing or using this instant hot water
heater.
• This appliance should be connected to a public mains water feed.
• This water heater may not be suitable for children or some elderly operators unattended due to the
risk of scalding should the unit be incorrectly operated.
• Your Strom-Electrical water heater MUST be installed and maintained regularly by a qualified

professional in accordance with current electrical and plumbing regulations.
• If the chloride content exceeds 200ppm a filtration system should be fitted, failure to do so may
invalidate your warrenty.
• This device has been designed for internal use only, if the system may be exposed to frost please
drain down the system completely, and DO NOT attempt to use the device if you suspect it is frozen.
• Always ensure that the flow temperature is not excessive before use. If the water is too hot please
increase the flow at the tap and wait for the temperature to reduce.
• As part of the product maintenance regularly clean the filter washer provided at the heater, failure to
do so may reduce your flow rate over time.
• The heater is not designed for modification in any way, please do not fit anything to the unit unless
otherwise recommended.
• When comissioning the water valve should be adjusted to increase or decrease the water flow to the
unit, this in turn will control the temperature of water from the unit, slower increases the temperature,
faster decreases the temperature.
• Each unit is tested at our factory before its departure, a little residual water is normal, and the product
should be flushed through before use.
• Never try to operate this device if your water supply is blocked or turned off, doing so could cause
premature failure of your device.
• Any damage to the wiring or integrity of your device should be assessed by a qualified electrician, and
the device should not be used until the unit or wiring has been repaired.
• The minimum water supply available at the point of install is 0.02mPa.
• The unit must be installed in a vertical position with the connections facing either downwards or
upwards, and should not be installed in an area with high magnetic interference.
BEFORE INSTALLATION
This installation must only be carried out by qualified professionals and installed to all relevent national
and local electrical and plumbing regulations. Failure to do this could render the install both illegal and
dangerous.
Before installation please ensure the following:
1. Your Strom-Electrical appliance is intact, and the fittings are supplied & complete.
2. Please make sure the mains power supply, water pressure, earthing condition, and cabling reach the
standards required for installation as required by all relevent regulations & laws.
3. The appliance must be properly earthed in accordance with all current regulations and laws.
4. If the unit is not to be used for a prolonged period of time please drain down and isolate the electrical
supply of the product.
5. Position the unit upright with all plumbing connections at the bottom of the unit.
6. During the installation please test water flow is achieved at the tap before connecting the power
supply. If the heater is activated without water supply the unit may be damaged.
7. This water heater may cause a small amount of water expansion due to residual heat after operation.
In most systems this is easily accommodated by the distribution pipework and water supply system.
In instances where problems may occur such as the existence of upstream non return valves close to
the heater then it is recommended that a small shock arrestor/expansion vessel is fitted.

PRODUCT STRUCTURE
WIRING SCHEMATIC
• This diagram is provided for your reference of the internal wiring of your Strom-Electrical water
heating product.
• No attempt should be made to change the internals of your water heater, doing so may be dangerous
and will invalidate your warranty.
• Your product MUST always be wired by a qualified electrician in accordance with all the relevent
regulations and laws in place at the time of installation.
AC220V--240V
Temperature
Sensor Flowmeter
R
R
R
3
2
1
Thermal Cut--out
E
Electrical Diagram
Leakage sensor
Temperature
Controllor
N
L
Remark ： R:Resistance T
： Triac
T

PRODUCT MOUNTING
Please remove the screw from the base of the water heater and remove the case by lifting the case
upwards, once done the unit can be secured to the wall using the method below.
Installation of your electrical water heater can be achieved in two ways.
INSTALLATION
Once your product has been sited in accordance with the diagrams above please connect your product
to the mains water supply using a 1/2” tap hose to the blue connection of the unit, NOTE: a check valve
should be fitted before your electrical water heater. Fit the supplied filter between the unit and the hose.
We suggest fitting an isolation valve and ball valve before the unit to facilitate removal of the tap and
servicing. Once the cold mains has been fitted you may use another 1/2” tap hose to connect your heater
to the properties hot pipework circuit (this circuit could be 1 outlet or multiple outlets, please ensure your
unit is capable of heating the number of outlets you are asking it to). REMEMBER: Before turning off the
water supply to the unit you must isolate its electric supply, operating the unit while there is no water can
cause premature failure and invalidate your warrenty. DO NOT turn on your electric supply at this time.
1. With the connections facing down. 2. With the connections facing up.
Drill two holes of 6.00mm in diameter, the distance
between the two holes should be 156mm in this
orientation. Please use plastic wall plugs and
suitabley long screws for the installation.
Drill two holes of 6.00mm in diameter, the distance
between the two holes should be 139mm in this
orientation. Please use plastic wall plugs and
suitabley long screws for the installation.

COMISSIONING
1. Please flush the system through completely by opening the hot tap on the water heater circuit
furthest away from the heater. Allow all air, and debris to pass before closing the hot tap.
2. Turn on the power supply to the heater.
3. When the heater is powered up, the LED will light red.
4. When in use the LED will change color to indicate the current temperature of the water flow:
• A Yellow LED indicates a temperature range of 27oC-35oC.
• A Blue LED indicates a temperature range of 37oC-45oC
• A Red LED indicates a temperature range of 47oC-55oC
5. The default temperature of the unit is 50oC, using the and down buttons you can
change this temperature in 2 degree increments. Using the keys please reduce the temperature to
an acceptible usage temperature. Your unit will always remember the last temperature used even
after power failure.
6. If your unit doesnt seem able to reach the temperature set please restrict flow at the ball valve.
GENERAL USE
Operation of this unit is simple:
• The heater automatically detects flow, so as soon as a tap is opened the heater will instantly begin to
heat the flow of water in accordance with the settings provided to the heater.
• To control the output temperature of the heater use and buttons to set the target
temperature, the buttons change the temperature by 2 degree incremements, the LED changes
colour live to show the current output temperature from the water heater.
• A Yellow LED indicates a temperature range of 27oC-35oC.
• A Blue LED indicates a temperature range of 37oC-45oC
• A Red LED indicates a temperature range of 47oC-55oC
• Your water heater will always remember its last temperature setting even after power loss.
TOP TIP: If the unit is installed in a cupboard once the temperature has been set the cupboard can be
locked, this prevents the temperature from being changed and makes the product safer for children.
MAINTENANCE
Always turn off the power supply before servicing your unit
To ensure a long lasting and efficient product we recommend the following maintenance regime:
• The filter washer supplied and fitted should be cleaned to reduce any debris build up and ensure good
consistent flow rates.

TROUBLESHOOTING
SYSTEM ISSUE LIKELY CAUSE POSSIBLE SOLUTION
Inlet or Outlet are leaking Fittings not tight enough Tighten the fittings
Rubber seals have worn out Replace rubber seals
The LED light is not illuminated The power supply is not live Get electrician to check supply
LED is damaged Have the LED unit replaced
Function keys not working There is no water flow Open a tap to allow flow
Water pressure is too low Increase water pressure
Key or PCB is damaged Replace the PCB
Water is too hot Temperature is set too high Using the function keys reduce
the target temperature
The water flow is too slow Increase the flow to the unit
Water is too cold Temperature is set too low Using the function keys increase
the target temperature
The water flow is too fast Reduce the flow to the unit
Outlet flow rate is getting
slower. Inlet strainer is clogged Clean the filter washer out
Your Strom-Electrical water heater is guaranteed for a period of 12 months from the date of purchase.
The unit is only guaranteed if the water heater has been installed and maintained in accordance with these
instructions. Full guarantee information can be found at: www.strom-electrical.com/guarantee
The guarantee specifically excludes:
• Corrosion by incorrect maintenance of the water heater, or incorrect installation.
• Limscale build up.
• Consequential losses, including labour charges and damages to fittings.
• Any water heater that has not been maintained and installed in accordance with this manual.
GUARANTEE

STROM-
ELECTRICAL
www.strom-electrical.com
www.strom-electrical.com