TEHNISCHE ALTERNATIVE ATON EHS-R User manual

ta.co.at

ATON

ELECTRIC IMMERSION HEATER EHS-R

CAN ENERGY METER CAN-EZ3A

User manual

Installation instructions

English

Manual Version 1.06 (CAN-EZ3)

Manual Version 1.04 (EHS-R)

Table of contents

Safety requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Step-by-step instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Overview of TAPPS2 programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Suggested installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Datalogging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation and connection – CAN-EZ3A energy meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Time stamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

DL bus and CAN bus connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3-phase measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-phase measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

External hinged current transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation and connection – EHS-R immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Dimensioned drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

High limit safety cut-out (HLSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Sensor installation, PWM input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Mains connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Heating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Wireless system (CORA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Pairing CORA devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Relaying wireless signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Deleting a pairing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Control via PWM – without wireless connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Notes on accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Energy meter Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Energy meter LED status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

LED indicators at device start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Reset/pairing of the immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

LED status indicators on the immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Possible LED indicators on the immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Technical data Energy meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Technical data immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Safety requirements

This device is state of the art and meets all necessary safety regulations. It may only be used in ac-

cordance with the technical data and the safety requirements and regulations listed below. When us-

ing the device, also observe the statutory and safety regulations apposite to the particular use. Any

other use will automatically void all warranty rights.

• Connection work and other exposure of the PCB in the immersion heater casing should only be

carried out in a dry interior room.

• It must be possible to isolate the immersion heater from the mains, in accordance with local reg-

ulations, using an omnipolar isolating facility (plug/socket or 2-pole isolator).

• The immersion heater should only be connected to a mains socket using the supplied connect-

ing cable. The connecting cable should be fitted before insertion. The mains socket must have at

least 16 A fuse protection.

• No extension cables, mains distributors or cable drums should be used.

• Before starting installation or wiring work on equipment, the immersion heater must be com-

pletely isolated from the mains and protected against a restart.

• Never pull on the mains cable, or pull the mains plug out of its socket by the cable.

• Safe operation is no longer possible if the immersion heater, the energy meter or connected

equipment shows signs of visual damage, no longer functions or has been stored for lengthy

periods in unfavourable conditions. If this is the case, disable the devices or equipment and

secure against unintentional use.

• At the immersion heater, high temperatures occasionally occur during operation, which should

be taken into consideration during installation/maintenance work. Also never touch the immer-

sion heater with wet/damp hands. Insulated footwear is recommended for installation work.

• The immersion heater may be active at a high output level for a prolonged period of time. Rele-

vant components (e.g. sockets) must be able to withstand current flows of up to 16 A for pro-

longed periods.

All installation and wiring work on the controller must only be carried out in a zero

volt state. The opening, connection and commissioning of the device may only

be carried out by competent personnel. While doing so, they must observe all lo-

cal safety requirements.

Maintenance

If treated and used correctly, the device itself will not require any maintenance. However, the use of

a suitable sacrificial anode in the cylinder is recommended, and if the immersion heater is used more

often than usual, it is necessary to check whether the material thickness is reduced (at least 2-3

times per year).

No components relevant to long term accuracy are subject to loading if the device is used correctly.

Consequently long term drift is extremely low. The device therefore does not require any mainte-

nance and cannot be adjusted.

The structural characteristics of the device must not be changed during repairs. Spare parts must

correspond to the original parts and must be used in accordance with the build version.

Disposal

• Devices no longer in use or beyond a state of repair must be disposed of in an en-

vironmentally responsible manner by an authorised collection point. They mus nev-

er be treated as ordinary household waste.

• We can undertake the environmentally responsible disposal of devices sold by the

Technischen Alternative company upon request.

• Packaging material must be disposed of in an environmentally responsible man-

ner.

• Incorrect disposal may result in considerable damage to the environment, as

many of the materials used require professional handling.

Introduction

The ATON set comprises a CAN-EZ3A energy meter and a variable EHS-R immersion heater.

These two devices communicate wirelessly with one another. The energy meter and immersion heat-

er are connected at the factory. This means that no wireless connection settings are required. How-

ever, information can be found in chapter Wireless system.

The purpose of the CAN-EZ3A is to capture energy and calculate surplus output, e.g. in conjunction

with PV systems. Relevant values are transmitted wirelessly to the EHS-R, which in turn converts

possible surpluses into heat, instead of exporting them to the mains, which can be a less favourable

option.

The CAN-EZ3A is programmed at the factory and this programming is described in more detail in

chapter Work settings. This programming can, of course, be changed or replaced with your own pro-

gramming. The energy meter can be fully programmed via the display and control buttons/rotary dial,

but we recommend using the PC software TAPPS2 for this. Programming generated on the PC can

be loaded on to the energy meter using the supplied micro SD card.

The EHS-R immersion heater does not require any programming/parameterisation.

Step-by-step instructions

Are the work settings on the CAN-EZ3A suitable for the on-site requirements? (See chapter

"Work settings")

If not, adjust the existing programming or generate your own and load it on to the energy

meter. (Instructions for the programming software and available function modules under

www.ta.co.at)

2The wireless range (as described in chapter "Wireless system (x2 wireless)") should be

compared with the on-site conditions.

3Shut down the control cabinet.

4Installation of the CAN-EZ3A in the control cabinet.

5Connect a current transformer to the CAN-EZ3A.

6Connect voltage terminals to the CAN-EZ3A.

7Snap the current transformer on to phase conductors, taking into consideration the energy

direction. (Current transformer ferrite cores must be clean.)

8Connect voltage terminals to the phase conductors, taking into consideration the energy

direction.

9Installation of the EHS-R in the cylinder. (Observe information in chapter "Installation and

connection – EHS-R immersion heater", particularly information regarding the electroplat-

ing in the cylinder)

10 As soon as both devices are supplied with power, the wireless connection is established

automatically.

Factory settings

The CAN-EZ3A is programmed at the factory and this programming is described in more detail in the

following pages. This programming can, of course, be changed or replaced with your own program-

ming. The energy meter can be fully programmed via the display and control buttons/rotary dial, but

we recommend using the PC software TAPPS2 for this.

The EHS-R does not require any programming/parameterisation.

Overview of TAPPS2 programming

Factory settings

Functions

The primary functionality comprises the Output control of the EHS-R immersion heater and an Ener-

gy manager, in connection with a Comparison function.

•TheEnergy manager receives the measured output via the system value Total real power and

the set output is specified with the fixed value F1 Set output.

• In the Energy manager, Output control is stored as an included function. This means that the

output to be consumed is specified for Output control.

• The purpose of the comparison function is to limit the maximum temperature of the immersion

heater. The threshold for this is set via the fixed value F2 Maximum temperature (set to 60 °C at

the factory).

• If the maximum temperature at the immersion heater is reached, the comparison function

issues an enable for the Output control to OFF. This blocks operation of the immersion

heater.

An energy meter also runs, together with a date-specific memory. This adds up the consumption of

the immersion heater in kWh.

An optional functionality for DHW heating is also integrated. This is deactivated at the factory via the

fixed value F3 Forced operation, enable.

• In the function Time switch, a time program is stored (default Mo-Su, 17:00 - 22:00 h). Within the

time window, DHW is heated irrespective of the solar yield.

• The DHW temperature is measured with Temperature 1* at the immersion heater. This tem-

perature is increased at sensor input S1 of the EHS-R.

• The maximum temperature limit via the comparison function also affects DHW heating.

•ThefixedvalueF4 Forced operation, set temp. specifies the set temperature for normal DHW

heating and for the functionality Charge once.

•TheDHW demand switches the Output control with its Forced operation.

Suggested installation

*To ensure that Temperature 1 gives a practical value, the immersion heater's cylinder sensor S1

must be installed at the top of the cylinder. The immersion heater must be installed horizontally in

the cylinder.

A more detailed description of all function modules can be found in the corresponding operating

instructions for freely programmable controllers (www.ta.co.at).

Factory settings

Datalogging

The following values are logged at the factory:

•EHS-RTemperature 1 (sensor input S1 of the immersion heater)

•EHS-RCurrent output in kW

•CAN-EZ3AElectrical power (total real power)

• Function Energy meter (kWh total)

Datalogging on SD card is deactivated at the factory.

Installation and connection

Installation and connection – CAN-EZ3A energy meter

The CAN-EZ3A is installed in a meter box in accordance with local regulations. It can be snapped on

to a top-hat rail (DIN support rail TS35 to EN 50022).

The 2-pole connectors of the current transformers are connected to the CAN-EZ3A and folded over

the cores. When doing this, pay attention to the correct assignment (I1 - I3) in accordance with the

voltage connections and a positive phase sequence.

For voltage measuring, the required wires are connected to the voltage terminals in the CAN-EZ3A.

The connection of sensors, and CAN and DL buses is carried out using the supplied connectors

Power supply

The CAN-EZ3A is supplied with power via the voltage measuring connection U1 (first phase).

Time stamp

The CAN-EZ3A has a real time clock and, as node 1 in the CAN bus network, can therefore transmit

the time and date to other devices.

Caution The surfaces of the current transformer ferrite cores must be completely clean. Even tiny

dust particles or greasy films can severely affect the measuring result. These surfaces must there-

fore be cleaned with a clean, lint-free cloth or clean fingers before closing.

Installation and connection

DL bus and CAN bus connections

Electrical measuring

CAN bus

(C-L, C-H

+12 V, GND)

CAN-Low, CAN-High, +12 V, earth

The principles of bus cabling are described extensively in the manuals for the free-

ly programmable controllers and must be observed.

DL bus

DL bus interface for DL sensors (e.g. FTS-DL (with intermediate board))

Parameterisation: DL bus menu (any analogue input)

Connection between DL and GND 

Ext. connec-

tion Antenna

No screws should be used to secure the antenna cable – press and pull to con-

nect and terminate.

This manual suits for next models

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