Strom-Electrical SEUS6L User manual

STROM-
ELECTRICAL
www.strom-electrical.com
Undersink / Oversink Heater
Installation Manual
Issue 1 2016/2017
STROM-
ELECTRICAL
www.strom-electrical.com

INTRODUCTION
Thank you for purchasing your Strom-Electrical electric water storage 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 hot water to standard taps.
SPECIFICATION
MODEL SEUS6L/SEOS6L SEUS10L/SEOS10L SEUS15L/SEOS15L
Capacity 6 Litres 10 Litres 15 Litres
Body Material High Strength ABS Casing
Voltage 220-240v
Power 2.0kW 2.5kW 2.5kW
Working Pressure 5 Bar
Minimum Inlet Pressure 0.2 Bar
Temperature Range Maximum 65oC
IP Rating IPX4
Control Mode Manual Control Dial
Insulation Thickness 25mm
Water Connections G1/2”
Dimensions
IMPORTANT NOTICE
• Your Strom-Electrical water heater MUST be installed and maintained regularly by a qualified
professional in accordance with current electrical and plumbing regulations.
• The included Safety Pressure Relief Valve MUST be fitted in accordance with this manual.
• Your Strom-Electrical water heater MUST be installed in the correct orientation in accordance with
page 5. The unit can be sited above or below the taps so long as it is in the correct orientation.
• Do not operate your unit at a temperature greater than required, this increases lifespan and reduces
limescale build up.
• Your Strom-Electrical unit MUST NOT be powered up until the unit has been filled with water and the
system has been flushed through to remove any airlocks and debris from the installation.
• This unit has been designed to be fitted indoors in a dry environment, should there be a possability
that the unit or pipes may freeze please drain down the system and dont not resume operation until
the pipes & unit have unfrozen.
2.

WALL MOUNTING
Using the brackets and moutings provided please mount your unit on the wall, please take into account the
following points when choosing where to mount your water heater:
• The wall must be strong enough to take the weight of not just the water heater, but the water it holds
as well, wherever possible we would recommend securing onto an external brick wall.
• The unit should be located in a position as close to the outlets as possible, this reduces the amount of
pipework between the heater and the outlet thus reducing heat loss across the pipework.
• Ensure that the water heater is in the correct orientation, the oversink model should always have the
connections at the bottom of the unit, and the undersink model should always have the connections
on the top of the unit.
PLUMBING
Your new water heater’s connections are 1/2” BSP fittings and these connections are clearly marked on
the unit, it is important that these two connections are not swapped over.
The connection from the heater to the system pipework should be made using flexible stainless steel
hoses, this facilitates the operation of the unit and also makes future maintenance easier.
The pipework used should be capable of withstanding 7.5 bar of working pressure and temperatures in
excess of 80oC.
The included safety relief valve must always be fitted without exception and should have no obstructions
whatsoever between the valve and the heater itself. Always make sure that the discharge vents to a safe
and visable location so as to provide a visible indicator that the system is not performing as expected.
Once the unit has been completely plumbed in accordance with this manual please ensure the system is
flushed through completely by opening the outlets for a minimum of 10 seconds, all air and debris should
be purged from the system before operation.
Under certain circumstances it may be necessary for additional safety components to be fitted to the
system installation, please see the diagrams overleaf to assertain your installation configuration and
any potential equipment that may or may not be needed to complete the installation.
62MM
External Brick Wall
Recommended
2. 3.

PIPING SCHEMATICS
System 1 - Incoming Cold Mains Below 5 Bar.
System 2 - Pressure Relief Closer Than Required (See System 1).
System 3 - Incoming Cold Mains 5 Bar Or Above
No Additional Equipment Required
Additional Equipment Required:
2L Potable Expansion Vessel
Check Valve
Additional Equipment Required:
2L Potable Expansion Vessel
Check Valve
Pressure Reducing Valve
Heater
Expansion Vessel
Check Valve
Closest Cold
Draw Off
Pressure Reducing
Set Service Valve
(Not Supplied)
Discharge To Drain
Heater
Expansion Vessel
Check Valve
Closest Cold
Draw Off
Service Valve
(Not Supplied)
Discharge To Drain
Heater
Closest Cold
Draw Off
Service Valve
(Not Supplied)
Pressure
Relief Valve
Discharge To Drain
Minimum Distance Required
To Pressure Relief For Expansion:
6L Unit - 1.85m
10L Unit - 2.80m
15L Unit - 4.20M
Pressure
Relief Valve
Pressure
Relief Valve
4.

ELECTRICAL
Your Strom-Electrical water heater must be wired in accordance with all relevent electrical requirements
and local regulations at the time and in accordance with the latest IEE regulations.
Connection should be made via a 13A switched fuse spur.
The cable supplied with the electrical water heater should be of ample length, but in the circumstances
that it is insufficient we recommend removing the shorter length and replacing it with the correct length of
cabling, we advise against joining the cable at any point.
Always ensure your water heater is correctly earthed.
As previously recommended please ensure that you unit has been filled, correctly flushed, and all debris
and airlocks have been removed before turning your water heater on. By bypassing this step you risk
irreversible damage to your water heater that will not be covered by your warrenty.
Electrical connections can be made via an external time clock if required, this gives a greater deal of
control for the operating times of this unit.
HEATER STRUCTURE
Undersink Water Heaters:
SEUS6L
SEUS10L
SEUS15L
Oversink Water Heaters:
SEOS6L
SEOS10L
SEOS15L
Hot Outlet
Cold Inlet
Temperature Dial
Heating Indicator
Power Indicator
Hot Outlet
Cold Inlet
Temperature Dial
Heating Indicator
Power Indicator
4. 5.

OPERATION
Once the system has been plumbed and wired in accordance with this manual it is time to switch the mains
supply on.
When power is supplied to the unit the indicator light will illuminate to show that the system is ready, and
begining to heat the water.
The dial on the outside of the case can be used to control the temperature that the internal water store
is heated to, turning this higher will increase the store temperature, turning it lower will decrease it. We
recommend adjusting the thermostat over a few days until the desired temperature is achieved. Remember
to only run the heater at the temperature required to avoid wasting energy.
In the event of overheating there is a safety cut out stat built into the unit. This has a resettable switch that
can be pressed to reset and can be found on the immersion heater inside the unit. We recommend that you
have a proper engineer service the unit and this is not attempted by the user.
The immersion heater is located below the grey plate on the underneath of the unit. If the unit has been
installed so this plate is inaccessible please disconnect the unit from the mains, isolate the water supply,
drain down, and remove the unit from the wall for maintenance.
Before attempting to maintain the unit please ensure you have isolated the electrical supply.
MAINTENANCE
Before attempting to maintain the unit please ensure you have isolated the electrical supply, and should
only be performed by a qualified professional.
This unit is a mains pressure hot water unit, and it is recommended that this device be serviced annually
to ensure a long and healthy lifespan.
Your water heater includes a Magnesium sacrificial annode as part of the immersion heater assembly. The
annode is present to ensure that your water heater does not corrode, should this device not be serviced,
the tank may corrode. The location of the immersion is as described above and is accesible from the grey
service hatch on the bottom of the unit.
The annode should be inspected annually and the condition checked, if the annode is sufficiently corroded
it should be replaced to ensure the protection of your water heater.
Additionally the pressure relief valve should be inspected annually, as well as the expansion vessel, check
valve, and pressure reducing set if fitted.
GUARANTEE
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
6.

TROUBLESHOOTING
SYSTEM ISSUE LIKELY CAUSE POSSIBLE SOLUTION
The Pressure Relief Valve Is
Constantly Discharging Or
Dripping.
The incoming cold mains
pressure is too high.
Please fit a pressure reducing
set inline with system 3.
The Pressure Relief Valve Drips
Or Discharges Whilst The Unit
Is Heating Up
There is insufficient
expansion for your system.
Please fit an expansion vessel
or increase the vessel size.
The Unit Is Not Producing Any
Hot Water The unit is not powered up. Please check the system has access to the power supply.
The thermal cut-out has
activated.
Reset the cut-out in
accordance with this manual.
The element has failed. Please replace the immersion
heater.
The Thermostat has failed. Please replace the thermostat.
Insufficient Amounts Of Hot
Water Available
The heater has been
undersized.
Please replace the heater with
one of an adequate size.
The unit has been mounted the
wrong way round.
Please mount the heater
ensuring the pipes are facing
downwards.
The Thermostat has failed. Please replace the thermostat.
The Unit Has Begun To Leak Faulty plumbing connection. Please check all joints to the
water heater.
Tank gasket has failed
Please replace the gasket that
attaches between the tank and
immersion heater.
All Other Faults Please contact your installer before attempting to contact
Strom-Electrical
The guarantee specifically excludes:
• Corrosion by incorrect maintenance of the water heater.
• Limscale build up.
• Consequential losses, including labour charges and damges to fittings.
• Any water heater that has not been maintained and installed in accordance with this manual.
6. 7.

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