SOLATHERM PV360SWT Switched Manuel utilisateur

Power Control Equipment

PV DC Electric Hot Water

Product Manual

1/52 Barnett Ave, Glynde SA 5070

Phone (08) 8337 8881

www.solatherm.com.au

Model:

PV360SWTSwitched

PV360BMS Shared

Heating with Secondary Output

Power Control Equipment (PCE)

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ATTENTION

The Solatherm controller and water heater vessel must be installed by an

authorised person and the installation must comply with all the relevant Australian

Standards, local and industry regulations.

ATTENTION

This appliance is not intended for use by persons (including children) with reduced

physical, sensory or mental capabilities, or lack of experience and knowledge, unless

they have been given supervision or instruction concerning use of the appliance by a

person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance

WARNING

Once installed the hot water tank is powered by TWO SOURCES of Power Supply,

both sources must be isolated before working on the appliance.

Before commencement of any service work on the hot water circuit,

including work that partially or completely drains the storage vessel,

ensure all electrical supplies, the Photovoltaic array and AC connection

have been disconnected as per the System Shutdown procedure in this

manual.

PV ARRAY WARNING

When the photovoltaic array is exposed to light, it supplies a d.c. voltage to the PCE.

WARNING

The controller is only to be connected to a hot water cylinder specifically designed

and configured for use with the Solatherm DC controller (P.C.E.). It is not for retrofit.

WARNING

If the equipment is used in a manner not specified by the manufacturer, the

protection provided by the equipment may be impaired.

CONNECTION WARNING

Solatherm Photo Voltaic Over Temperature Cut Out (PVOTC) must be installed in

the power supply feed to the DC heating element.

WARNING

DANGER the operation of the PV (DC) thermal cut out indicates a possibly

dangerous situation. The water heater must be inspected by a qualified person and

the PV-OTC (PV thermal cut out) replaced.

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WARNING

DANGER the operation of the 240V AC thermal cut out indicates a possibly

dangerous situation. Do not reset the 240V AC thermal cut out until the water

heater has been serviced by a qualified person.

PV ARRAY WARNING

Maximum array power of 3.84kW must not be exceeded. Current must not exceed

22 Amps, array design must not exceed 2 strings. Voltage must not exceed 270V,

String length must not exceed 6 panels.

Max power must not be exceeded.

3.84kW can be either 270V @14.2A or 174V @ 22.0A or in between.

P=IR (Volts x Current), 3840W must not be exceeded.

WARNING

The controller has no user serviceable parts. Opening the cover will void all

warranty and may expose dangerous voltages.

Removal of the covers on the storage water vessel will expose live electrical wiring.

Covers must only be removed by an authorised service person and only once dual

supply power has been isolated.

ATTENTION

Ensure all glands from the control box are firmly tightened to ensure ingress

protection.

ELECTRICAL WARNING

All electrical work and permanent wiring must be carried out by a qualified person

and in accordance with all current relevant Australian installation standards and

local authority requirements.

Means for disconnection must be incorporated in the fixed wiring in accordance

with the wiring rules.

All electrical connections must be terminated before switching any component on.

The power to the Solatherm solar control unit and water heater must NOT be

switched on until the water heater is completely filled with water and all air bled

from the system.

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WATER CONNECTIONS FOR STORAGE VESSEL

Please ensure all plumbing installation work is carried out in accordance with

AS3500 and that a non-return valve is installed in the incoming water line.

Maximum inlet pressure 700kPa, minimum inlet pressure 350 kPa.

A pressure relief valve must be fitted in accordance with AS 3500, rating 850kPa

10kW. A discharge pipe must be connected to the device and be installed in a

continuously downward direction and in a frost-free environment and the end must

be left open to atmosphere.

DANGER

Failure to operate the relief valve easing gear at least once every six months may

result in the water heater exploding. Water may drip from the discharge pipe but

continuous leakage from the valve may indicate a problem with the water heater,

please have your water heater serviced by a qualified person.

If the water supply pressure exceeds the rated pressure, a pressure reducing valve is

to be fitted in the installation.

The water may drip from the discharge pipe of the pressure-relief device and that

this pipe must be left open to the atmosphere;

The pressure-relief device is to be operated regularly to remove lime deposits and

to verify that it is not blocked;

The water heater can be drained by disconnecting the water inlet.

Symbol Glossary

Symbols Used

Refer to the operating

instructions

Caution, risk of danger

Protective conductor

terminal

Caution, risk of electric

shock

Positive conductor

Negative conductor

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Contents

Symbol Glossary ..............................................................................................................................................3

Contents ..........................................................................................................................................................4

About ...............................................................................................................................................................5

Display .............................................................................................................................................................6

Basic System Configuration .............................................................................................................................7

Start-up Procedure.................................................................................................................................8

System Shutdown...................................................................................................................................8

Frequently Asked Questions............................................................................................................................9

Troubleshooting ............................................................................................................................................11

Installation Instructions.................................................................................................................................12

Wiring Diagram - Controller......................................................................................................................12

On the Ground ..........................................................................................................................................13

Wall mounting PCE controller..............................................................................................................13

Mounting Clearances and Mount Point Locations ..............................................................................14

Connection: Controller to Storage Water Vessel.................................................................................15

Wiring Diagram - PVOTC - Element......................................................................................................16

Connection - Main Array Input ............................................................................................................17

Connection - Secondary Output...........................................................................................................18

Connection - Boost Element - AC.........................................................................................................19

ON THE ROOF ................................................................................................................................................20

Panel Configuration..............................................................................................................................20

Commissioning Start Up ................................................................................................................................21

Shut down Procedure...........................................................................................................................21

Warranty........................................................................................................................................................22

Warranty Definitions ................................................................................................................................22

Warranty Conditions.................................................................................................................................22

Warranty Exclusions .................................................................................................................................23

Commissioning ..............................................................................................................................................24

System Information - Form A....................................................................................................................24

System Diagram.............................................................................................................................................26

Technical Data ...............................................................................................................................................27

PV360SWT/BMS-PMV1 0420

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About

The Solatherm control unit regulates DC electricity generated by a photovoltaic

array and applies it to a resistive heating element, located in a storage hot

water vessel, to generate hot water. The microprocessor constantly monitors

the water temperature in the storage vessel and energizes the heating element

when sufficient power is available from the array and the water stored in the

vessel is below the set temperature. (Factory set temperature 600or 700Celsius)

When the temperature is reached the unit will turn the element off until the

water temperature falls.

Once the water is up to temperature, Solatherm units with diversion are able to

divert surplus power for another purpose such as battery storage. The

controller monitors the temperature of the stored water to ensure maximum

hot water is maintained.

Solatherm Control Units are independent from the grid and require no mains

power connection to operate, hence, the unit will only operate and display user

information when there is sufficient energy from the sun. It is normal for the

LCD display and lights to flicker or not fully display in low light conditions.

During periods of low solar input where there is insufficient power available to

heat the stored water to 600C the independent 240V AC boost element will top

up the temperature of the water in the storage vessel.

NB: Generally the independent AC boost element is connected to an off peak

(controlled load) power supply. If only peak is available it is recommended to install a

din rail timer and set a heating period during the early evening and/or early morning

depending on the household demand. If the water in the storage vessel is higher than

the 600C thermostat setting the unit will not draw any power as there is no need. If the

water is below 600C during the set periods the boost element will top up the

temperature to ensure hot water is available. The boost element heats approximately

125L of water. Connection via a timer will maximise solar gain during the day, minimise

energy consumption and allow for ease of use. High usage households may require

extended boost periods or continuous mains connection to meet high demand.

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Display

Solatherm Control Units are independent from the grid and require no mains

power connection to operate, hence, the unit will only operate and display

user information when there is sufficient energy from the sun. It is normal for

the LCD display and lights to flicker or not fully display in low light conditions.

LCD Display

Scrolling display showing the array voltage and when the heating element is

activated, the current and power. The second line shows the kW/h consumed for

the day and the total kW/h consumption.

Power

(red)

LED illuminated red when the main array is connected and supplying power to

the unit. In low light conditions this light may be the only LED lit or flashing.

Heating

(green)

LED illuminated green when the controller has energized the heating element.

400-700C

(orange)

LED's illuminated orange - an approximate indication of the average temperature

of the water stored in the storage vessel.

Divert LED

(green)

PV360SWT: Green LED will illuminate when the heating element is switched off

and the secondary output is switched on.

PV360BMS: Green LED will flash when the output load is shared (Hot water and

diversion) and will remain on when the second output is 100%.

Figure 1.

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Basic System Configuration

Figure 2.

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Start-up Procedure

NOTE: ENSURE HOT WATER VESSEL IS COMPLETELY FILLED WITH WATER

BEFORE COMENCING START UP PROCEDURE.

1. Turn on Isolator. RED LED POWER LIGHT SHOULD BE ON. The LCD will

illuminate and start to indicate incoming power (providing supply

voltage is over 40 Volts). The controller should show start up

information as it runs though a power up test sequence. When test is

complete LCD will display system voltage etc.

2. After the start up sequence is complete the green heating LED will light

up if sufficient power is available to commence heating. Note: The

controller has several built in time delays of up to 1.5 minutes, to allow

for power stabilisation. Some models will start on divert for 30min prior

to heating. See supplement.

3. Turn on 240V AC Booster breaker switch in household fuse box.

System Shutdown

1. Turn off main array isolator (lock switch if required)

2. Controller should now be off, red light and LCD display should be off.

3. Turn off 240V AC Booster isolator and breaker switch in household fuse

box.

4. System should now be electrically isolated.

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Frequently Asked Questions

Q: The controller LCD and lights are flashing or resetting in the morning,

during the day or at the end of the day?

A: The Solatherm control unit is powered by the photovoltaic array. There is no

connection to mains/grid power required for standard operation. The controller

will only operate when sufficient energy is available from the sun. In low light,

such as in cloudy conditions, early in the morning or at the end of the day, it is

normal for the controller to flicker and dim and/or reset if there is inadequate

sunlight intensity to generate sufficient stable power for operation.

Q: My LCD show 0 Watts but the sun is out?

1. The water in the storage tank is up to temperature.

Dependant on the factory set temperature 600C or 700C.

2. During periods of low light intensity such as, early morning, late evening or

in dark cloud the main array may not be able to produce the minimum

amount of power needed. The controller requires a stable 250 Watts to be

available when the element is energized to commence heating. The green

heating light will flick approximately every 25 seconds as the controller is

testing the amount of power available from the array.

Q: The heating light has been on all day but there is no hot water at the end

of the day?

1. The hot water produced has been consumed during the day.

2. If the display is showing 0 Watts with the heating light on there may be a

fault with the element or the over temperature cut out. Please contact your

installer.

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