Coolpower Products EMMA User manual

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INSTALLATION MANUAL
ELITE
THE ENERGY AND MICROGENERATOR MANAGER LITE
OCTOBER 2016

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CONTENTS
CONTENTS ...........................................................................................................................................................2
TABLE OF FIGURES ............................................................................................................................................... 4
1. GETTING STARTED......................................................................................................................................... 5
2. SAFETY..........................................................................................................................................................5
3. COMPONENTS INCLUDED WITH EMMA..........................................................................................................6
4. COMPONENTS THE INSTALLER NEEDS TO SUPPLY...........................................................................................7
INSTALL OVERVIEW..............................................................................................................................................8
Description of basic operation................................................................................................................................... 8
5. ELITE INSTALLATION......................................................................................................................................9
ELITE WALL MOUNTING ...................................................................................................................................................... 9
Procedure................................................................................................................................................................... 9
CABLE ENTRIES .................................................................................................................................................................. 9
Procedure:.................................................................................................................................................................. 9
POWER SUPPLY TO THE ELITE ............................................................................................................................................... 9
Procedure................................................................................................................................................................... 9
POWER SUPPLY TO THE ELITE ............................................................................................................................................. 10
Procedure:................................................................................................................................................................10
FIT IMPORT EXPORT CT PROCEDURE ...................................................................................................................................10
Procedure:................................................................................................................................................................10
IMPORT EXPORT CT WIRING.............................................................................................................................................. 11
Procedure:................................................................................................................................................................11
FIT GENERATION CT.........................................................................................................................................................11
Procedure:................................................................................................................................................................11
GENERATION CT WIRING ..................................................................................................................................................11
Procedure................................................................................................................................................................. 11
CONNECT EARTH .............................................................................................................................................................12
Procedure................................................................................................................................................................. 12
ATTACH FACEPLATE TO BACKPLATE .....................................................................................................................................12
Procedure................................................................................................................................................................. 12
POWER THROTTLE INSTALLATION ...................................................................................................................... 13
POWER THROTTLE WALL MOUNTING ..................................................................................................................................13
Power Throttle Lid Screws........................................................................................................................................ 13
Power Throttle keyhole mounting slots ...................................................................................................................13
POWER THROTTLE MAINS WIRING ......................................................................................................................................14
POWER THROTTLE TEMP SENSOR WIRING.............................................................................................................................15
Extended Earth incoming lead with ring terminal termination to screw connection. .............................................15
Power Input from Mains ..........................................................................................................................................15
Power output to load...............................................................................................................................................15
TEMPERATURE SENSORS....................................................................................................................................................16

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Bonding the sensors to the hot water cylinder ........................................................................................................ 16
Using two sensors ....................................................................................................................................................16
THERMOSTAT ..................................................................................................................................................................16
POWER ON SEQUENCE....................................................................................................................................... 17
POWER ON THORTTLE....................................................................................................................................................... 17
Procedure................................................................................................................................................................. 17
POWER UP ELITE..............................................................................................................................................................17
Procedure................................................................................................................................................................. 17
PAIRING PROCESS ............................................................................................................................................................18
Procedure................................................................................................................................................................. 18
SETTING TIME AND DATE ..................................................................................................................................................18
Procedure................................................................................................................................................................. 18
VERIFICATION OF OPERATION ............................................................................................................................................19
Procedure................................................................................................................................................................. 19
6. INSTALLATION CHECKLISTS.......................................................................................................................... 19
7. FAULT CONDITIOONS AND INDICATION. ...................................................................................................... 20
Standard start up LED sequence:.............................................................................................................................20
Wireless fault condition sequence (Only on Wireless units): ...................................................................................21
Over temperature fault condition sequence:...........................................................................................................21
Input power fault condition sequence: ....................................................................................................................21
Over current or over voltage fault: .......................................................................................................................... 21
8. SUPPLY, CERTIFICATION & GUARANTEE ....................................................................................................... 22
Certificate Of Conformity.........................................................................................................................................22
9. TECHNICAL SPECIFICATIONS, OPERATING PARAMETERS............................................................................... 23
10. CONTACT DETAILS.................................................................................................................................... 23

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TABLE OF FIGURES
Figure 1 Elite 3kW Supplied Parts .....................................................................................................................................6
Figure 2. Elite 3kW Installation Overview......................................................................................................................... 8
Figure 3. Elite Wall Mounting. ..........................................................................................................................................9
Figure 4. Cable Entry. ........................................................................................................................................................ 9
Figure 5. Fitting Elite Power Supply Unit ..........................................................................................................................9
Figure 6 Elite Power Supply Wiring................................................................................................................................. 10
Figure 7. Import Export CT placement............................................................................................................................10
Figure 8. Import Export CT wiring. ..................................................................................................................................11
Figure 9. Generation CT Placement. ...............................................................................................................................11
Figure 10. Generation CT Wiring.....................................................................................................................................11
Figure 11. Connect Earth to Elite. ...................................................................................................................................12
Figure 12. Attach Faceplate. ...........................................................................................................................................12
Figure 13 Power Throttle Lid Assembly ..........................................................................................................................13
Figure 14 Power Throttle Mounting Slots....................................................................................................................... 13
Figure 15 Power Throttle Mains Wiring..........................................................................................................................14
Figure 16 Mains Wiring and Earthing..............................................................................................................................15
Figure 17 OPB Control input board located in Power Throttle.......................................................................................15
Figure 18. Power On Throttle..........................................................................................................................................17
Figure 19. Power on Elite PSU.........................................................................................................................................17
Figure 20. Elite and Power Throttle Pairing Interface.....................................................................................................18
Figure 22. Setting Time and Date....................................................................................................................................18
Figure 21. Zigbee MAC Address. .....................................................................................................................................18
Figure 23. Home Screen and Operations. .......................................................................................................................19

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1. GETTING STARTED
Before you begin installing EMMA, you will need:
A. This Installation Manual
B. Example installation schematic(s).
In addition to Figure 2. Elite 3kW Installation Overview.(included in this document), a selection of further
schematics are available on our website, or our engineers will have provided you with one specific to your
project. Choose the one most appropriate to your project. You need this to show the correct positioning of
components, including the Henley block.
C. Operation Manual (for programming, set-up screens etc.).
Available on website.
D. EMMA unit, components and optional extras supplied
with EMMA (see list below).
For ongoing updates, amendments and further information visit
the FAQ at:
http://www.coolpowerproducts.com
2. SAFETY
All installation and maintenance work must be carried out by a
properly trained and qualified electrician.
It is vital to ensure that the installation complies with local wiring
regulations.
The mains power supply must be disconnected before the cover is
removed.
If this unit is used in a way that doesn’t comply with this manual its safety features may be impaired.
The EMMA Power Throttle must be earthed in accordance with Figure 16 Mains Wiring and Earthing.
We have approved suppliers and
installers of EMMA throughout
Ireland, the UK and Europe. Call us
or see our website for details.
The Operation Manual and additional
installation schematics are available on
the Cool Power Products website:
www.coolpowerproducts.com

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3. COMPONENTS INCLUDED WITH EMMA
Your EMMA system is supplied with:
Elite Controller
EMMA 4G Power Throttle unit.
Two 100Amp Current Transformers (CT’s)
oGeneration CT 100 Amp (May be larger or smaller depending on site requirements)
oImport Export CT 100Amp (May be larger or smaller depending on site requirements)
NTC 10K Temperature Sensor
OPTIONAL EXTRAS:
We supply Current Transformers to match or exceed the max import capacity and max generation
Figure 1 Elite 3kW Supplied Parts
2 x 100Amp Current
Transformers
Temperature Sensor
EMMA 4G Power Throttle
Elite Controller
Elite Power Supply unit

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4. COMPONENTS THE INSTALLER NEEDS TO SUPPLY
The installer will need to supply:
All cable, as per the specifications below.
Required immersions and/or other loads for the system, if not already in place.
Loctite 315 thermally conductive adhesive and activator (Loctite 7386) to bond the temperature sensor to
the tank if a probe pocket is not available and a temp sensor is provided. These are available in Loctite's 315
Output Kit.
PHYSICAL DIMENSIONS
The dimensions of the EMMA 4G Power Throttle are 219mm wide (246mm wide with Aerial attached and upright) x
336.8mm high x 86.9mm deep. Weight 4.6kg
The dimensions of the Elite are 147mm wide x 87mm high x 36mm deep. Weight 212g
The dimensions of the power supply match a standard DIN rail mountable doorbell transformer with basic
dimensions of 88mm high x 65mm deep x 36mm wide. The front face of the unit is 45mm high to fit in a standard
fuse board. Weight 346g
The CT’s differ in size according to their Current rating. The standard CT’s supplied with a 3kW system are 100Amp.
100Amp CT has an Aperture of 16mm. Weight 81g each.
Temp Sensor 500mm lead length. Weight 31g.

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INSTALL OVERVIEW
Heat Store
Mains L1
Clamp-on thermostat or
temperature sensor.
Electric Immersion heaters
thermostat at 65⁰C.
Cylinder 1
Drawing No. EPRO 3kW with EC.
Date. 13 –06 –2015.
Scale. Not to Scale.
Service. EMMA Professional 3kW with Export Cut Off.
Client.
Project.
Address.
Engineer. Kieran Egan.
0 - 3kW Variable Supply
CYOZ 0.75mm 2 core cable
Mains cable
Legend
Electric Immersion heater
thermostat at 65⁰C.
Distribution Board
Correctly Sized
Fused Breaker Din Rail.
DC
AC
PV and/or Wind system
Inverter
Import/Export
Current
Transformers
Generation Current
Transformer
ELITE
Power
Supply
Mains Incoming
ELITE
CT1
ELITE
CT2
Fuse Spur
for
Immersion Elite
Power Throttle
Meter Box
Zigbee Wireless Comm’s
2 core sized to voltage and current capacity
CYOZ 0.75mm 2 core Screened Control cable
CYOZ 0.75mm 2 core Screened Control cable
Figure 2. Elite 3kW Installation Overview.
DESCRIPTION OF BASIC OPERATION
The Elite 3kW system has two separate components that are installed to make the system function.
The Elite is the control component which has 3 peripherals: a power supply and 2 current transformers used to
measure Voltage and Current 256 times per sine wave cycle. This power is registered on the Elites meter which is
also accessible from its touch screen showing cumulative Generation, Demand, Import and Export.
This allows the Elite to see real time power and power factor for the main incoming supply of import or export and
also for the generation for monitoring purposes.
Based on the import or export of power the Elite will communicate with the Power Throttle every 50 milliseconds
telling it to ramp up to use the exportable power or to ramp down to negate the imported power with its goal to
heat the hot water tank with as much renewable energy as possible.
The unit will stop heating the tank once the temperature sensor indicates the tank has reached its preset
temperature or if the stat cuts out in the immersion.
The unit can be used as a simple timer control for times of low renewable output to heat the tank as a standard
hotwater timer.
The Elite has the added benefit of a boost button to allow the user to quickly boost the tank temperature without
using the timer.

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5. ELITE INSTALLATION
ELITE WALL MOUNTING
PROCEDURE
The Elite is normally installed in a convenient location under the Fuseboard.
1. Use a mini level to align the Elite backing box on the desired surface.
2. Holding the box in place mark the mounting surface through the 4
openings.
3. Drill the marked holes and install wall plugs.
4. Screw backing box in place.
Figure 3. Elite Wall Mounting.
CABLE ENTRIES
PROCEDURE:
1. The Elite backing box has 4 knockouts for wires to enter.
2. Select the most appropriate knockout based on which way the wires will
enter.
3. Using a slot screw driver punch through the weak plastic to make the hole.
4. Feed cables through as they are required.
5. Cable Entries are detailed in Figure 4. Cable Entry.
Figure 4. Cable Entry.
POWER SUPPLY TO THE ELITE
PROCEDURE
1. Snap Power Supply Unit (PSU) onto DIN rail in fuse board.
2. Use a 1 amp MCB to supply Live to the PSU.
3. Supply Neutral from the Neutral Bar.
4. The output from the PSU will be <12VAC and can be run in the
conduit to the elite circuit board.
Figure 5. Fitting Elite Power Supply Unit
4 x 30mm screw fixings
Conduit from
Fuseboard
Knockouts
Knockouts Knockouts
Knockouts
Knockouts
Live Neutral
Power Supply
Unit

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POWER SUPPLY TO THE ELITE
PROCEDURE:
1. Using 0.75mm2 cable run a 3 core cable to the Elite Touch from the
Elite PSU
2. The output of the PSU is <12VAC and should be connected to
terminal J6 on the Elite Board as indicated in
3. Figure 6 Elite Power Supply Wiring.
4. When the cables are in place tighten the screws to clamp down for
termination at the PSU and at J6
5. See Figure 6 Elite Power Supply Wiring. for further details.
Figure 6 Elite Power Supply Wiring.
FIT IMPORT EXPORT CT PROCEDURE
PROCEDURE:
1. The Import Export CT should be fitted on the main incoming live
supply to the fuse board.
2. Make sure prior to clamping the CT closed that L is on the Fuseboard
side of the cable and K is on the utility meter side of the cable
3. Clamp the CT closed making sure not to pinch the cable on the
inside of the hinge.
4. See Figure 7. Import Export CT placement. for further details.
Figure 7. Import Export CT placement.
XBee
J
2
J
3
10
00
J
4J 5J 6
Earth
LKK
L
Fuse
board
Meter
LKMeter
Ensure the clip is
engage to keep the CT
closed
Import Export CT
Utility Meter
Utility Meter

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IMPORT EXPORT CT WIR ING
PROCEDURE:
1. The Import Export CT should be connected to the two ports on J4
nearest the J4 label.
2. The black wire should be connected to the first port.
3. The red wire should be connected to the second port.
4. Tighten screws to make sure of a correct termination.
5. See Figure 8. Import Export CT wiring. for further details.
Figure 8. Import Export CT wiring.
FIT GENERATION CT
PROCEDURE:
1. The Generation CT should be fitted on the live supply to the fuse
board from the inverter.
2. Make sure prior to clamping the CT is closed that L is on the Fuse
board side of the cable and K is on the utility meter side of the cable
3. Clamp the CT closed making sure not to pinch the cable on the
inside of the hinge.
4. See Figure 9. Generation CT Placement. for further details.
Figure 9. Generation CT Placement.
GENERATION CT WIRING
PROCEDURE
1. The Generation CT should be connected to ports from right to left 3 and 4
on J4 nearest the J4 label.
2. The black wire should be connected to the third port.
3. The red wire should be connected to the fourth port.
4. Tighten screws to make sure of a correct termination.
5. See Figure 10. Generation CT Wiring. for further details.
Figure 10. Generation CT Wiring.
Signal
cable to
Elite
XBee
J
2
J
3
10
00
J
4J 5J 6
Import Export CT
LKK
L
Fuse
board
LK
Ensure the clip is
engage to keep the CT
closed
Inverter
Inverter
Inverter
Signal
cable to
Elite
XBee
J
2
J
3
10
00
J
4J 5J 6
Generation CT

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CONNECT EARTH
PROCEDURE
1. An Earth cable should be connected to port 5 from right to left
reading from right to left from the J4 label.
2. The earth wire should be connected to the 5th port as indicated.
3. Tighten screws to make sure of a correct termination.
Figure 11. Connect Earth to Elite.
ATTACH FACEPLATE TO BACKPLATE
PROCEDURE
1. Place the Elite faceplate onto the backing box.
2. Backfeed any cables up the conduit so there is no cable interfering
between the backplate and circuit board
3. The faceplate groove should fit snugly over the backplate tongue
perimeter.
4. Use the screws provided to fasten on the faceplate.
5. See Figure 12. Attach Faceplate. for further details.
Figure 12. Attach Faceplate.
XBee
J
2
J
3
10
00
J
4J 5J 6
Fuse
board
9mm Pan Head Screws

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POWER THROTTLE INSTALLATION
POWER THROTTLE WALL MOUNTING
Figure 13 Power Throttle Lid Assembly
Figure 14 Power Throttle Mounting Slots
POWER THROTTLE KEYHOLE MOUNTING
SLOTS
1. The Power Throttle should be mounted in a
position that is ventilated and should not
exceed the max operating temperature of
30’C.
2. The unit should be mounted vertically with
the vented ends at the top and bottom with
the input/output cables at the top.
3. 20cm clearance should be provided at the
top and bottom of the unit for ventilation
purposes.
4. A minimum of 10cm clearance should be
provided on the sides of the unit for access to
the closing screws and aerial.
1. Remove the 4 side screws
from the EMMA 4G Power
Throttle.
2. Lift the lid off the Power
Throttle carefully as there is
an earth bond lead
between the chassis and
the lid.
3. Once the lid is off the 4
keyhole slots will be visible
POWER THROTTLE LID SCREWS

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POWER THROTTLE MAINS WIRING
Drawing No. SP15 EMMA 4G SSEPD Power Throttle Internal Connections (Pre-Wired)
Date. 7 –8 –2014.
Scale. Not to Scale.
Service. Power Throttle Wiring.
Client.
Project. SP15 EMMA 4G SSEPD
Address.
Engineer.
Figure 15 Power Throttle Mains Wiring
1. The Power Throttle should be installed between the fuse spur for the immersion and the tank.
2. The Power Throttle is supplied with prewired White 3093Y Heat Resistant Flex (H05V2V2-F 3 x 2.5mm2)
cables labelled input and output,
a. Should the pre-supplied cables need to be changed for any reason the earth input cable should be
the last cable disconnected and the first cable reconnected to the unit.
b. The earth input cable should be terminated using a ring terminal and attached to the unit with the
labelled earth screw.
c. The input earth lead should be 30mm longer than the live and neutral cables so earth would be the
last cable to disconnect if the cables are forcefully pulled out.
d. The internal headers for power in and power out are designed to receive 2.5mm2 single core/solid
core wire cables. Should Flex be used as a replacement then the cable should be terminated with
2.5mm2 crimped ferrules as per the supplied cables.
3. The fuse spur must be supplied by a separate Mechanical Circuit Breaker (MCB) and Residual Current Device
(RCD) or a Residual current operated Circuit breaker with Overcurrent protection (RCBO).
4. The labelled mains in flying lead should be connected to the fuse spur.
5. The labelled heat load output lead from the Power Throttle should be wired to the immersion as normal.
6. All M20 Glands should be screwed tight.

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Figure 16 Mains Wiring and Earthing
POWER THROTTLE TEMP SENSOR WIRING
The Temperature Sensor if supplied as part of the
system connects to the Thermostat1 input header on
the OPB Control Board as illustrated in Figure 17 OPB
Control input board located in Power Throttle.
When the system is power up the unit senses the
temperature of the tank via this connection and
transmits the data back wirelessly to the Elite
controller for display on the screen and also for upload
to the ELMON Dashboard if the Elite is GSM enabled.
Figure 17 OPB Control input board located in Power Throttle.
EXTENDED EARTH INCOM ING
LEAD WITH RING TERMINAL
TERMINATION TO SCREW
CONNECTION.
POWER INPUT FROM MAINS
POWER OUTPUT TO LOAD
Temp Sensor inputTemp Sensor input

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TEMPERATURE SENSORS
BONDING THE SENSORS TO THE HOT WATER CYLINDER
A heat paste can be used to install the sensor correctly e.g. Loctite 315 thermally conductive adhesive. This is
available in their Output Kit together with the appropriate activator (Loctite 7386). The adhesive is put on the sensor
and the activator on the cylinder and they are then bonded together. If it is not practical to put the activator on the
cylinder the activator can be put onto the adhesive on the sensor just before putting it in place.
USING TWO SENSORS
EMMA is supplied with its own temperature sensor. EMMA’s sensor is normally inserted near the top of the tank
into the insulation to make contact with the cylinder and is always above the immersion.
If an oil- or gas-fired boiler is also in use, it will have its own separate temperature sensor in the or on a return feed
from the coil for the hot water cylinder. This governs when the boiler turns on and off based on the boiler’s timer
settings and the water temperature.
EMMA’s temperature sensor works independently of the oil/gas-fired boiler’s temperature sensor.
This configuration allows you to:
Use EMMA to heat the water whenever possible using electricity from your renewable generator,
and
Supplement this heating, when necessary, using the oil/gas-fired boiler. For instance, if there is not enough
sun or wind to enable your generator to heat your water to the desired temperature on a particular day,
your oil/gas-fired boiler will kick in at its set times to bring water up to the desired temperature. This means
that, using your renewable electricity and oil/gas-fired boiler in tandem, you will always have enough hot
water whatever the weather.
In the absence of an oil/gas-fired boiler, EMMA simply draws additional electricity from the grid to bring the water to
the desired temperature for the time periods you choose if there isn’t enough electricity from the renewable
generator. The advantage of an oil/gas-fired boiler is that is often more cost effective than using electricity from the
grid.
THERMOSTAT
IMPORTANT
A thermostat is provided as standard in the immersion ('Standard Thermostat'). For safety, the Standard
Thermostat MUST ALWAYS be used with EMMA installations.
If the Temperature Sensor is not being used and the Thermostat is not being used the link lead must be put in place
of the Thermostat only for EMMA to function but the power from the EMMA must go through the immersion
Thermostat in this case.

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POWER ON SEQUENCE
POWER ON THORTTLE
Live
Immersion MCB
+-
J11 J3 J4
Thermostat1
Thermostat2
Standard 3kW immersion
Element
Temp Sensor
Cylinder
Example DHW System
Power Input typically wired through
existing fuse spur in the hotpress.
Power Output
LNE EL N E
Figure 18. Power On Throttle
PROCEDURE
The Power Throttle should be powered on first by either using the appropriate MCB as per Figure 18. Power On
Throttle at the fuse board or switching it on at the fuse spur if it is a switched fuse spur
POWER UP ELITE
PROCEDURE
1. Turn on MCB for PSU.
2. Screen will illuminate.
3. The cool power OS will load displaying the OS version
4. The screen will then change to the power throttle pairing
screen.
5. See Figure 19. Power on Elite PSU for further details.
Figure 19. Power on Elite PSU
Live Neutral

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PAIRING PROCESS
PROCEDURE
1. The unit will boot into the Power Throttle pairing screen.
2. The PT MAC Address will appear between 5s and 30s
3. This should match the MAC Address written on the side of the
Power Throttle.
4. Press yes when the correct address is displayed.
5. The unit will hold this screen for c180 seconds during its self
calibration process and then display the home screen.
Figure 20. Elite and Power Throttle Pairing Interface
The Zigbee Mac address is located inside the Throttle on the Zigbee
Chip indicated in Figure 21. Zigbee MAC Address. Verification of the
MAC Address is generally not required.
SETTING TIME AND DATE
PROCEDURE
1. In the home screen press Settings and then Time and Date.
2. Touch the elements of date and time that you wish to change and it
will highlight and underline in green.
3. Adjust the settings to correspond with the current date and time.
4. Press Set when complete and back to exit the menu.
5. An Elite that is GSM enabled will automatically update the time and
date itself once it establishes a good connection with the GSM network.
Figure 22. Setting Time and Date
Figure 21. Zigbee MAC Address.
ZIGBEE MAC Address

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VERIFICATION OF OPERATION
PROCEDURE
Part of the proper commissioning of our Elite system is to observe the units reaction in normal operating
circumstances.
1. Press the Boost Off Button to on. The Tank power should increase to reflect the power of the immersion,
typically 2.7kW.
2. The import should increase or the export should decrease proportional to the tank power.
3. The temperature of the tank should appear over Tank Temp on the home screen if the temp sensor is
connected. Otherwise it will read N/A.
4. Press the Boost On Button to Off and the Tank power should decrease to zero or to a load matching the
exportable power.
5. The Output Renew will display output when there is generation from the renewable source. The Generation
will not display a value below 100Watts of production.
6. The text under the Red Z symbol indicates if the Elite is paired or not paired with the Power Throttle. If it is
unpaired please follow the operations manual to add the Throttle as a node to the Elite.
7. If the unit is GSM enabled the GSM section will eventually read Good after a maximum of 15 minutes.
6. INSTALLATION CHECKLISTS
To be completed by installer.
Test
Yes
No
Observed Boost Operation as per step 1
Observed Import/Export Reading as per Step 2
Observed if applicable Temperature Reading as per Step 3
Observed Boost Operation as per Step 4
Observed Output as per Step 5
Observed Zigbee is paired as per step 6
Observed if applicable GSM Good as per step 7
Checked by: Date:
Figure 23. Home Screen and Operations.

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7. FAULT CONDITIOONS AND INDICATION.
The following can only be observed on the EMMA 4G Power Throttle.
The EMMA 4G Power Throttle has 3 LED’s on the front panel for various information and fault indication purposes.
STANDARD START UP LED SEQUENCE:
1. Power, Wireless and Fault illuminate.
2. Fault turns off after 5 seconds once it has completed its temperature and voltage check.
3. Wireless begins flashing 0.5 seconds on and 0.5 seconds off after a further 5 seconds if the EMMA control
has been turned on.
4. The unit will not start operating until its paired Control hub has been powered on and has connected.
5. Once Zigbee has connected a click is heard from inside the unit which is the internal relay connecting the
input power to the power control engaging.
6. There is an initial 0.5 second soft ramp up to reduce problems on AC.
7. This is the standard start up sequence.