Geyserwise Delta T User manual

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GeyserWise Delta T
220V
Thermostat instruction manual
Before operating and installation, carefully read all instructions. Do not discard this manual.
All in one hot water management
SANS 181 compliant

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Index
Warranty
Components
About the GeyserWise
Application
Installation
Technical information
Improper usage
Dangers during installation
Exclusion of liability
Installation 220V pumped solar system
Installation procedure steps
Apply all safety measures
Install control box
Install the display unit
Remove thermostat and replace with supplied geyser temperature probe
Install the collector probe
Connections on control box summary
Complete all electrical connections
Main power supply
Connect wire between controller and geyser
Connect wire between controller and pump
Replace lid on control box
Display
Adjusting day of the week
Adjusting the real time clock
Maximum temperature setting
Setting solar differential (default 7ºC)
Setting the anti-freeze temperature
Setting geyser timers
Eliminating a timer
Holiday mode setting
Manually overriding element timers
Pump indicator
Element indicator
Hour counter
Error codes summary
E2
E3
E4
E5
E7
E8
E9
General
Temperatures expected above 90ºC
How to deal with power failure in case of 220V pump application
How to prevent loose connections in the terminal block
GeyserWise anti-freeze function
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Instruction manual
Warranty conditions apply:
1. We, GeyserWise CC, warrant to you that, for a period of six months from the date of purchase, the GeyserWise
220V Delta "T" all in one Hot Water Management System (the "good") will be free of any defect.
2. If any defect in the good is discovered by you within six months from date of purchase, you can return the
good to our service centre or to one of our duly authorised service agents. We will then, at your option -
1. repair or replace the good; or
2. refund to you the price paid by you for the good.
3. A good returned under this warranty must be presented to us in its original packaging together with
all accessories.
4. We will refuse the return of any good which has been -
1. partially or wholly dissembled;
2. physically altered;
3. used in a manner contrary to any instructions provided by us; or
4. permanently installed or attached and/or combined with other goods or property in any way.
5. We will not -
1. repair the good where the defect or damage to the good is found to be a direct result of your negligence,
recklessness or malicious behaviour; and/or
2. be liable for damage caused to the good as a result of wear and tear unless such damage
manifests itself -
1. within 12 months from date of purchase (where the good has been used for normal family, personal
or household purposes); or
2. six months from the date of purchase (where the good has been used for commercial or
professional purposes).
6. Where we issue a refund under this warranty, we will deduct the charges we are allowed to deduct under
the Consumer Protection Act, No 68 of 2008.
BY SIGNING BELOW, YOU ACKNOWLEDGE THAT YOU HAVE READ AND UNDERSTOOD ALL THE TERMS
AND CONDITIONS CONTAINED IN THIS WARRANTY.
Signed at __________________________________ on ______________________________
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Warranty
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Warranty conditions apply:

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Control box
The control box is the brain of the system. It
performs all the programmed functions and sends
instructions to the pump and the element.
Water geyser sensor
The water geyser sensor measures the temperature
in the geyser and acts as a thermostat.
The temperature sensor for the thermostat in the
stem-type thermostat is in the last 2cm of the stem.
The sensor for the thermal cut-out is in the first
centimetre of the stem of the unit.
Display unit
An array of useful information can be displayed. This
includes the temperature of the water in the geyser,
the temperature in the collector, whether the pump
is running or not, when the element is on, actual
hours of electricity used, etc.
Collector temperature sensor and extension
cable
Also referred to as a probe, it senses the temperature
in the panel and relays the information to the
control box via the extension cable.
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Components
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Instruction manual Components
Thermal cut-out
sensor
Temperature sensor
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Components

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About the GeyserWise
Application
GeyserWise is suitable for installation 220V pumped solar hot water heaters.
When installing the GeyserWise be sure to follow the appropriate instructions of each particular manufacturer
for all other components as well:
Installation of geyser.
Installation of solar collectors.
Installation of pumps.
Installation
Installation, maintenance and dismantling may only be performed by trained personnel in accordance with
this instruction manual and safety instructions.
Use the GeyserWise only after first thoroughly reading and understanding this instruction manual and the
safety instructions. In the event of any ambiguities regarding the installation and operation, consult trained
personnel or contact our offices.
Technical information
Operating voltage 230VAC / 50HZ.
Main relay contact rating 20AMP.
Secondary relays pump 5Amp.
Operating voltage range 160V - 250V AC.
Recommended ambient temperatures: -20 to 55°C; Max 65°C
Temperature display range 0 - 200°C (“-5” when below -5°C “EA” ).
Temperature setting ranges 30 - 65°C.
Heat failure - when increase at a rate of 4°C or less per hour.
Mechanical thermal cut-out 90°C (300 manual resets) - Please note this temperature for solar
systems expected to reach temperatures higher than 90°C.
Thermal cut-out - Isolate live.
Dry heat detection - empty cylinder.
Temperature tolerance ± 5°C and manufacturing drift is less than 6°C.
Temperature differential setting 1°C.
Switching differential for the element 6°C.
2nd temperature probe for solar.
Solar differential 7°C (default) - standard system. Settable 7°C - 15°C.
Temperature probe failure detection for both collector and tank.
Temperature probe range for geyser is -30 to +130°C.
Temperature probe range for collector is -30 to +260°C
Isolate both L + N when element in an off state.
Collector anti-freeze protection at 5°C (default). Settable 0°C - 10°C. Please be sure to use the correct
solar systems for frost prone areas. More details can be found on the ESKOM website:
http://www.eskomidm.co.za/residential/residential-technologies/step-by-step-guide-to-choosing-a-solar-
water-heating-system
Control box insulated - Class 1.
Operating life - 50 000 cycles.
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Instruction manual About
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About the GeyserWise

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Improper usage
The GeyserWise must not be operated in the following environments:
Outdoors.
In damp rooms.
In rooms in which the operation of electrical and electronic components may be dangerous.
Dangers during installation
Risk of death by electrocution.
Risk of fire due to short circuit.
Be sure to follow the below instructions:
All work on an open GeyserWise must be performed with the mains supply disconnected.
All safety regulations apply when working on the mains supply.
Before connecting the GeyserWise, make sure that the power supply matches the specifications on
the type plate.
Factory labels and markings may not be altered, removed or rendered unreadable.
Make sure that all devices which are connected to the GeyserWise conform to the technical specifications
of the GeyserWise.
Exclusion of liability
The manufacturer cannot monitor the compliance to this manual as well as the conditions and methods
during installation and operation. Improper installation of the system may result in damage to the property
and, as a result, in bodily injury.
Therefore, we assume no responsibility for loss, damage or costs which result from or are in any way related
to incorrect installation, improper operation, incorrect execution of installation work and incorrect usage
and maintenance.
Please note that our normal warranty does not cover any natural disasters, for example:
Flooding
Lightening
Earthquakes
The manufacturer reserves the right to make changes to the product, technical data or assembly and
operating instructions without prior notice.
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Instruction manual About
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220V PUMPED SOLAR SYSTEM
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Installation procedure steps
A summary of the installation steps are as follows:
1. Apply all safety measures.
2. Install the control box.
3. Install the display unit.
4. Remove existing thermostat and replace with new supplied thermostat.
5. Install the collector probe.
6. Complete all electrical connections.
7. Set up the controller and all settings.
Instruction manual 220V pumped solar system
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220V PUMPED SOLAR SYSTEM

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Switch off circuit breaker of geyser
at main DB. This is done to ensure that there
is no power supply to the geyser.
Switch off isolator switch in the roof.
The isolator switch acts as a switch to
isolate both live and neutral from the
main supply should someone
accidentally switch on the main supply
or the circuit breaker fails.
Test with a MULTIMETER to ensure
that there is no current on the wires.
IMPORTANT! Make sure that there is no
reading on the multimeter
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STEP 1: Apply all safety measures
An installer should always take precautions when working with electricity.
The most important safety precautions to perform BEFORE doing any maintenance on a geyser are:
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STEP 2: Install control box
Find a dry place near the isolator switch. The control box must not be exposed to the elements!
Instruction manual 220V pumped solar system
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STEP 3: Install the display unit
The display unit must be installed in a location
that is accessible to the end user, but not in reach
of children that might want to play with it.
The display unit provides valuable information on
the functionality and status of your solar system.
Draw the display unit cable from the unit to the
control box. Plug it into the three pin plug as
provided on the control box. It can only fit into
one plug.
The standard display cable of 5m is supplied.
Extension cables are available on request from our
offices. A maximum extension of 20m is
recommended.
Only use GeyserWise extention cables for
extensions!!!
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Remove the existing thermostat by
disconnecting all the wires on the
connector terminal block of the
thermostat.
Pull the thermostat out of the pocket.
Please note that certain types of geysers
require the user to remove the front part
of the geyser temperature probe as
provided.
1 2
STEP 4: Remove thermostat and replace with supplied geyser temperature probe
The geyser's thermostat needs to be removed. The geyser temperature probe provided by GeyserWise has
a built in probe that measures the temperature in the geyser. It also supplies information to the element
whether it should switch on or not.
The GeyserWise geyser temperature probe incorporates a thermal cut out to prevent electrical overheating.
The live feed to the element will be broken at temperatures above 90°C. Please note this temperature
when designing a solar system. When the cut out switches off, it needs to be reset manually by pressing
the red button on the thermal cut out.
Instruction manual 220V pumped solar system
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Geyser Thermostat
Connection
Collector Probe
Connection
Display
Connection

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Ensure that you insert the
geyser temperature probe into the
correct pocket.
Insert the new geyser temperature
probe and connect the live wires once
again on the connector terminal block
Push the plug connected to the geyser
temperature probe.
Plug it into the dedicated plug as
provided on the control unit.
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5
Instruction manual 220V pumped solar system
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Geyser Thermostat
Connection
Collector
Probe
Connection
Display
Connection

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On a flat plate the collector probe must be
installed on the return side of the panel at
the highest possible point.
The function of the collector probe is to
measure the temperature of the panel. A
critical concept to understand is that heat
rises and therefore the warmest part of
the collector is at its highest point.
The measurement on a lower point will result in an incorrect reading (lower temperature). This
implication is that the panel will be warmer than the indicated temperature and therefore stop
the pump too soon. The solar system will not be functioning optimally!
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STEP 5: Install the collector probe
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Please note the position of the probe when using a pump for anti-freeze, as the temperature at the top
of the panel is higher than at the bottom. Always make sure the correct panel for frost prone areas is used
and that anti-freeze valves are installed. ESKOM also recommends an indirect system for frost prone areas.
Instruction manual 220V pumped solar system
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You will be supplied with an extension
cable. Do not use any other extension than
the extension cable provided.
Plug the probe connection into the control
box at the dedicated port.
On an evacuated tube collector a sleeve is
normally provided on the return side to
install the probe.
Connections on control box summary
Instruction manual 220V pumped solar system
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Geyser Thermostat Connection
Collector Probe
Connection
Display
Connection

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STEP 6: Complete all electrical connections
The hard wiring of a controller is critical.
Main power supply
The main power supply is provided from the isolator switch.
The Red wire is your Live wire.
The Black wire is your Neutral.
The other wire provided is your Earth.
Each control box has knock outs at the bottom of the unit. To make an entry into the control box, just
remove the knock out.
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Connect Live and Neutral as indicated.
Ensure that the wires are properly
fastened as they are drawing a large
current. Loose connections can
damage the connector block.
Connect Earth wire as indicated
1 2
Connect the wire from isolator to controller
Note: Ensure that a wire is used that complies with the requirements of SANS 10142.
Connect Live and Neutral as indicated.
Ensure that the wires are properly
fastened as they are drawing a large
current. Loose connections can
damage the connector block.
Connect Earth wire as indicated.
1 2
Instruction manual Installation
Connect the wire from controller to geyser
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Connect wires to geyser’s
connector block.
Fasten all connections with the cord
grip as indicated to ensure that the
wire cannot be moved.
3 4
Connect Live, Neutral and Earth
as indicated.
Replace cover of geyser to protect
the electrics.
5 6
Replace lid on control box and fasten properly.
Before you replace the lid it is important to do a final check on the electrics by comparing it to the wiring
as indicated on the lid.
Power up system
1. Switch on main supply at DB board. 2. Then switch on power at isolator switch.
Summary
Instruction manual Installation
5 6
Main power
Main power Power to geyser Power to geyser
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Connect wire between controller
and pump
1. Connect Live (Brown) and Neutral (Blue)
as indicated. Ensure that the wires are
properly fastened both sides of the
terminal block as they are drawing a
large current. Loose connections can
damage the connector block.
2. Connect Earth (Green/Yellow) wire as
indicated.
3. Fasten all connections with the cord
grip and screws as indicated to ensure
that the wire cannot be moved.
Connect leak detector (optional)
1. Push wire through the hole as provided.
2. Plug into green socket as provided on
control box.
3. Plug leak detector onto lead wire.
4. Place detector in drip tray of the geyser.
5. An alarm will sound to indicate that
there is water in the drip tray of the geyser.
Replace lid on control box and fasten properly.
Before you replace the lid it is important to do a final check on the electrics by comparing it to the wiring
as indicated on the lid.
Power up system
1. Switch on main supply at DB board. 2. Then switch on power at isolator switch.
Summary
Instruction manual 220V pumped solar system
Connect wire between controller and pump
1. Connect Live (Brown) and Neutral (Blue) as indicated. Ensure that the wires are
properly fastened both sides of the terminal block as they are drawing a large current.
Loose connections can damage the connector block.
2. Connect Earth (Green/Yellow) wire as indicated.
3. Fasten all connections with the cord grip and screws as indicated to ensure that the
wire cannot be moved.
Earth connection
Pump connection
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Connect wire between controller
and pump
1. Connect Live (Brown) and Neutral (Blue)
as indicated. Ensure that the wires are
properly fastened both sides of the
terminal block as they are drawing a
large current. Loose connections can
damage the connector block.
2. Connect Earth (Green/Yellow) wire as
indicated.
3. Fasten all connections with the cord
grip and screws as indicated to ensure
that the wire cannot be moved.
Connect leak detector (optional)
1. Push wire through the hole as provided.
2. Plug into green socket as provided on
control box.
3. Plug leak detector onto lead wire.
4. Place detector in drip tray of the geyser.
5. An alarm will sound to indicate that
there is water in the drip tray of the geyser.
Replace lid on control box and fasten properly.
Before you replace the lid it is important to do a final check on the electrics by comparing it to the wiring
as indicated on the lid.
Power up system
1. Switch on main supply at DB board. 2. Then switch on power at isolator switch.
Summary
Instruction manual 220V pumped solar system
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Geyser temperature. Collector temperature (press up and
down arrows simultaneously once).
In case of Pumped solar system only.
Day of the week. Real time clock.
Anode depletion indicator. Element on/off indicator.
Pump on/off indicator. Timers.
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Instruction manual Display
DISPLAY
The display is the feedback mechanism to the user and displays important information about the solar
system or electric geyser.
It displays the following:
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DISPLAY
Geyser temperature. Collector temperature (press up and
down arrows simultaneously once).
In case of Pumped solar system only.
Day of the week. Real time clock.
Anode depletion indicator.
Element on/off indicator.
Pump on/off indicator. Timers.
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Instruction manual Display
DISPLAY
The display is the feedback mechanism to the user and displays important information about the solar
system or electric geyser.
It displays the following:
Geyser temperature. Collector temperature (press up and
down arrows simultaneously once).
In case of Pumped solar system only.
Day of the week. Real time clock.
Anode depletion indicator. Element on/off indicator.
Pump on/off indicator.
Timers.
37
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Instruction manual Display
DISPLAY
The display is the feedback mechanism to the user and displays important information about the solar
system or electric geyser.
It displays the following:
Geyser temperature. Collector temperature (press up and
down arrows simultaneously once).
In case of Pumped solar system only.
Day of the week. Real time clock.
Anode depletion indicator. Element on/off indicator.
Pump on/off indicator.
Timers.
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Instruction manual Display
DISPLAY
The display is the feedback mechanism to the user and displays important information about the solar
system or electric geyser.
It displays the following:

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Adjusting the day of the week
To adjust the day of the week, follow the steps below:
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Error messages.
Press the green set button until the day of the week flashes.
1
Adjust the day of the week by
using the ^ and v arrow buttons.
2
Instruction manual Display
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Adjusting the day of the week
To adjust the day of the week, follow the steps below:
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Error messages.
Press the green set button until the day of the week flashes.
1
Adjust the day of the week by
using the ^ and v arrow buttons.
2
Instruction manual Display

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Adjusting the real time clock
To adjust the real time clock follow the steps below:
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Press the green set button until the time flashes.
1
And set the hours to your requirement. Press the green set button immediately
after setting the hours to get to the minute counter. Set the minutes according
to your requirements by using the ^ and v arrow keys.
2
Maximum temperature settings
There are four maximum temperature settings. It is important to note that these settings apply to the four
quarters of the day and not to the set times that the elements must come on.
Instruction manual Display
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Set the temperature per block to user requirements by using ^ and v arrow keys.
To adjust the maximum temperature settings, press the green set button until the first
block temperature setting is displayed. The temperature will be flashing and the number
of the block will be displayed in the timer indicator block. The below screens show the
temperature flashing in block number 1.
1
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2
Instruction manual Display
Setting solar differential (default 7°C)
Set the temperature differential to your requirements using the v and
^ arrow keys. Available temperatures is 7°C to 15°C.
2
Press the green set button
until the temperature
pump light and green timer
on light flashes.
1
Definition of solar differential
Once the panel temperature is 7°C
(or your set temperature) higher
than the tank temperature the
pump will switch on.
To adjust the solar differential
follow the steps:
Press the green set button
until the temperature and
pump light flashes.
1
Set the anti-freeze temperature to your requirements
(between 0 and 10°C) using the v and ^ buttons.
2
Setting the anti-freeze temperature
GeyserWise has an anti-freeze
function where the pump will start
circulating warm water from the
geyser to the collector if the panel
reaches a set temperature (default
5°C).
Set your own anti-freeze
temperature (between 0 and 10°C)
by following the steps:
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Instruction manual Display
To set timer number one, follow the steps as
indicated below:
Follow the same steps as above for
timer 2, 3 and 4.
To get to the weekend timer setting
press the green set button until the
timer indicators and Saturday and
Sunday flashes.
Press the green set button until the
timer indicators and Monday to Friday
flashes. The below picture shows that
you are at the Monday to Friday
setting for timer number 1 on.
1
Adjust the hours you require by using
the ^ and v buttons. Immediately
press the green set button again to
get to the minutes and use the ^
and v buttons to adjust the minutes.
2
To set the number 1 off timer, press
the green set button until the timer
indicators and Monday to Friday
flashes. The below picture shows that
you are at the Monday to Friday
setting for timer number 1 off.
3
Adjust the hours you require by using
the ^ and v buttons. Immediately
press the green set button again to
get to the minutes and use the ^
and v buttons to adjust the minutes.
4
Setting geyser element timers
There are four on/off timers that can be set with the GeyserWise. Note that you can set different timers for
the weekend.
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