Catch Power GREEN User manual

USERS GUIDE
GREEN
CATCH Power GREEN – User Guide - Page 1

Catch Power GREEN – User Guide - Page 2
Catch has been designed with simplicity in mind. The interface has only 4 buttons.
1 – How to Control Catch
1. Power light
The power light indicates the unit has power to it and is ready to operate. Most of the time this led
will be solid green.
If you see the power led flashing on and off it means the unit is restricting power delivery to the hot
water because it is getting hot.
The device getting hot is not an indication of a problem, the small form factor means there will be
times the unit needs to slow down because it is getting hot.
1. Diverting light
The diverting light indicates how much energy is being sent to the hot water service. The faster the
diverting light is flashing the more energy is being sent to the hot water.
If the diverting light is solid green it means the unit is as at 100%, which means Catch is sending as
much power as the hot water element can handle.
If the diverting light is off and you see a very short pulse of light every few seconds it means the hot
water service has hit temperature and the hot water thermostat has shut the element off.

Catch Power GREEN – User Guide - Page 3
Understanding the CATCH buttons
Each button on the control console represents a different mode of operation. You change modes by
gently pressing on the round circle that represents each button. Catch will let you know if it has
changed modes by the green LED lighting up on the button you have just pressed.
3. Heat Now Button
The Heat Now mode is entered into by pressing the Heat now button.
The Heat Now mode is used to get your hot water heated as soon as you press the button. In this
mode the device will first check to see if it can you power from the Off Peak line. If the off peak is
not installed or is not available then it will use normal mains power.
Once the hot water service hits thermal cut off CATCH will move out of Heat now mode and go back
into Boost 5hrs mode.
Heat Now Lock mode can be entered by pressing the Heat Now button a second time. CATCH will
tell you it is in Heat Now Lock mode by flashing the led on the Heat Now Button on and off.
When CATCH is in Heat Now Lock mode CATCH stay in Heat Now mode until it is manually changed
to another mode.
4. Boost 5hrs Button
The Boost 5Hrs mode means CATCH will use a maximum of 5hs of Off Peak energy each day as well
as the excess solar energy to heat hot water. This value will change (default) depending on when
thermostat cut-off is reached from solar. This value can also be fixed (flashing LED). See chart below
for details.
5. Boost 2.5hrs Button
The Boost 2.5Hrs mode means Catch will attempt to use 2.55hs of Off Peak energy each day as well
as the excess solar energy to heat hot water. This value will change (default) depending on when
thermostat cut-off is reached from solar. This value can also be fixed (flashing LED). See chart below
for details.
6. Solar Only Button
The default (solid LED) is for the solar to provide required energy unless thermostat cut-off is not
reached during the day. In this case, the off-peak is called on to complete the process that night.
If the mode button is selected twice (LED flashing), the Solar Only mode means CATCH will not use
any Off-Peak, or any other source of mains power, to heat the hot water tank. The only energy that
will be sent to the hot water service is solar energy that would have otherwise been exported to the
grid.
For more details, refer to the chart below.
For further assistance please contact our support team on 02 5700 5717,
or complete the form on the Contact Us page

Setting Description Question Result Action
Solar Only – Default
(Solid LED)
Solar PV is the only
energy source available
to divert to hot water.
If thermostat cut-off is
not reached from solar,
then off-peak will be
used to finish the
process that night, or at
11pm if there is no off-
peak.
Has the hot water tank
reached thermostat cut-
off from Solar?
Yes.
No.
Mains (off-peak or
ortherwise), is NOT
called on.
Mains (off-peak or
otherwise) used to
boost the tank to the
tank to thermostat cut-
off.
Solar Only – Selected
Twice
(Flashing LED)
The unit is now in
absolute Solar Only
mode. The only energy
source available is
surplus solar PV.
Has the hot water tank
reached thermostat cut-
off from Solar?
Yes.
No.
No mains boost (off-
peak or ortherwise), is
called on.
No mains boost (off-
peak or ortherwise), is
called on.
Boost 2.5Hrs Diverters surplus solar
PLUS draws from Off-
Peak/Controlled Load to
Boost.
Has the HW reached
cut-off?
Yes, before midday. Reduce boost time by
12.5% of 2.5hrs
(this process continues
until there is no
overnight boost).
“Has the HW reached
cut-off?
Yes, after midday. No further reduction in
boost time.
“Has the HW reached
cut-off?
No Boost to cut-off from
mains when off-peak
becomes available or at
11pm.
Boost 2.5Hrs (Fixed)
(Alternative)
Press this button again
to toggle and fix the
boost amount to 2.5Hrs
No change in condition. CATCH will boost for
2.5Hrs, or until
thermostat cut-off is
reached, at 11pm or
when the off-peak is
present.
As described.
Green CATCH Firmware Steps
Catch Power GREEN – Installation manual - Page 7

Setting Description Question Result Action
Boost 5Hrs As above but with
maximum of 5 hours of
mains power.
As with 2.5Hr Boost
procedure.
Boost 5Hrs (Fixed)
(Alternative)
Press this button again
to toggle and fix the
boost amount to 5Hrs
No change in condition. CATCH will boost for
5Hrs, or until
thermostat cut-off is
reached, at 11pm or
when the off-peak is
present.
As described.
Heat Now Will use off-peak mains
or general rate mains to
heat the hot as soon as
pressed.
Has the tank reached
thermostat cut-off?
When the answer is Yes,
the unit will revert back
to the Boost 5Hr mode
automatically.
Once the HW reaches
cut-off the unit will
automatically revert
back to the Boost 5Hr
mode automatically.
Heat Now - Fixed Press the Heat Now
button twice and the
LED will flash indicating
that it is in the Fixed
mode.
Press the button again
to revert to default Heat
Now mode (above).
Has the tank achieved
thermostat cut-off?
Yes; then the unit will
wait until the
thermostat closes again
and requires energy to
heat again.
No; then will continue
to supply energy to the
element in the tank
until the thermostat
opens.
Always keeping the tank
at top temperature via
the mains. Every time
the thermostat closes
for heating CATCH will
allow the energy to be
taken from the mains,
regardless of solar, off-
peak conditions or the
time.
Green CATCH Firmware Steps
Catch Power GREEN – Installation manual - Page 7

Yes
Yes
Yes
Yes
No
No
No
Suggested setting for Summer
No
Has 2.5 or 5 hour
button been
pressed once?
Has button
been pressed
twice?
Has water reached
70 degrees by
midday?
Has water reached
70 degrees by end
of day?
Has heat now
button been
pressed once?
Has button
been pressed
twice?
Has solar only
button been
pressed twice?
Has water reached
70 degrees by end
of day?
2.5 or 5 hour boost
with grid power after
11pm
Full boost with grid
power to 70 degrees
after 11pm
Boost now
from grid
power to 70
degrees then
revert to 5
hour setting
Boost now with grid
power to 70 degrees
Catch Power Diverter Algorithm
Yes
Yes
Yes
Yes
No
No
No
→Start Here 
Solar only button pressed once
No boost from
grid power
Reduce boost time by
12.5% each day that
water reaches 70
degrees by midday
No