emz smart Sol nano User manual
SPECIAL
DIFFERENTIAL TEMPERATURE CONTROLLER FOR BASIC
SOLAR THERMAL SYSTEMS FOR HEATING DRINKING
WATER AND SUPPORTING HEATING SYSTEMS
OPERATING INSTRUCTIONS
These Assembly and Operating Instructions are an integral part of the product.
> Read Assembly and Operating Instructions carefully before using the product.
> Keep them in a safe place during the product‘s service life.
Translation from the German original edition ©emz 2016 - Subject to modications.
The contents and representations of these Assembly and Operating
Instructions are the intellectual property of emz-Hanauer GmbH & Co.KGaA.
Non-authorized disclosure, reproduction, divulgation or editing of this
documentation, as well as exploitation, utilization or publication, are prohibited.
The rights to the word and design marks ›emz - smart solutions‹ and ›smart Sol nano‹
are the exclusive property of emz-Hanauer GmbH & Co.KGaA.
The rights to any cited brands, names or logos are the property
of their appropriate developers / of the licensees in question.
Page 3
Table of contents Page
Symbols used 4
Important fundamental information 5
Description 6
Dimensions 7
Technical Data 8
Designation of the components 10
Operation of the controller 11
Display 12
Opening the terminal cover 13
Wall-mounting 14
Connection to power supply 15
Hydraulic systems 17
Commissioning mode 21
Automatic mode 24
Operation mode 25
Malfunction 30
Replacement of fuse 34
Professional mode 35
Disassembly/Disposal 44
Warranty and liability 45
Error report 46
Commissioning report 47
EC Declaration of conformity 48
Index 49
Appendix – List of messages 50
TABLE OF CONTENTS
Page 4 SYMBOLS USED
When handling the differential temperature controller smart Sol nano
and the entire plant, please make sure that the following safety provisions
in the Assembly and Operating Instructions are complied with!
Note!
Useful information regarding handling of the device and the plant!
Important!
Important information compliance with which is essential!
Danger!
Immediate danger for assets, life and limb!
Page 5
IMPORTANT FUNDAMENTAL INFORMATION
These instructions describe installation, commissioning, operation, repair
and disassembly of the differential temperature controller smart Sol nano
for solar thermal plants.
For operation of the entire plant, the technical documentation of all the
components used such as solar collectors, boiler, tank, pumps, mixers
and valves etc. must be complied with.
The controller is handled by the operator of the entire solar
thermal plant, i. e. as a rule by technical non-experts.
Make sure not to use the controller until you have thoroughly read and
understood these Assembly and Operating Instructions and the safety provisions.
Comply with all safety provisions and involve a specialist in case of doubt.
Keep these Assembly and Operating Instructions and all reference
documents so that they are available if required.
When relocating or when selling the device, hand the documents over to your successor.
Important!
The tter installing the controller must inform the plant operator about
operation, functioning and the method of action of the smart Sol nano!
Danger!
The device in operation may only be made accessible to
adults disposing of appropriate knowledge and experience!
Danger!
The controller by no means replaces the safety
components required under plant engineering aspects!
Danger!
Assembly, connection, commissioning, repair and disassembly of
the controller may only be performed by a qualied specialist!
Page 6 DESCRIPTION
The differential temperature controller smart Sol nano is an independent electronic
controller for surface-mounting which is used for the control of solar thermal plants.
The controller is equipped with a robust three-part plastic housing
which can only be opened by means of tools (screw driver PH2).
Operation is effected by means of only two control elements;
indications appear against a backlit colour display.
Before connection of the electrical system, the controller
must be mounted rmly to a perpendicular, robust surface (wall).
For its own supply and the supply of the outputs, the controller must be connected
to an electrical energy supply system in accordance with the technical data.
Assembly, connection, commissioning, repair and disassembly
of the controller are only admissible in a specialist workshop.
To ensure correct operation, temperature sensors type Pt 1000
must be used - the sensor design does not affect function.
Each temperature sensor has two connectors which are equivalent,
i. e. interchangeable. Thus, polarity reversal is not an issue.
The sensor lines can be extended up to a length of 100 m, to
this effect, a cable cross section of 2 x 1.5 mm2is recommended.
Note!
The electrical equipment of the device must be installed rmly and
connected to the power supply via a disconnector ensuring complete
isolation from the power supply according to the erection regulations!
Important!
Make sure that only a dry or slightly moistened cloth is used for cleaning
and servicing of the housing, the control elements and the display.
The surfaces must never get into contact with cleaning products
or solvents - mat, brittle or slightly dissolved plastic parts must
be replaced immediately!
A device with damaged housing must not be operated!
Page 7
102mm 45mm
150mm
100mm
41mm61mm
dmax 5/9mm
5mm
25mm
25mm
DIMENSIONS
Page 8
Intended Use
The differential temperature controller may be used exclusively as controller for the con-
trol of solar thermal plants. It must be operated within the scope of all the specications
described. Installation and set-up of the controller may only be performed by specialists.
The tter must have read and understood the operating manual.
The tter explains all the relevant functions to the operator.
For operation, it is essential that the housing is closed and free of damage.
Scope of supplies
1 Differential temperature controller smart Sol nano
1 Instruction manual
Differential temperature controller smart Sol nano
Type of mounting Wall-mounting
Housing Plastics, in several parts
Type of protection IP 20
Dimensions Width x Height x Depth [mm] 102 x 150 x 45
Weight [g] Basic version 320
Storage/operating temperature [°C] 0-40, non-condensation
Handling via rotary encoder and pushbuttons
Display FSTN monochrome display 45 x 23mm, backlit
Power reserve of real time clock,
at least [h] 8
Max. cross sections to be connected
Cable end sleeve: 0.25 to 0.75 mm2
Single-wire 0.50 to 1.50 mm2
Fine-wired 0.75 to 1.50 mm2
Connection to power supply
Design 3 spring-type terminals PE, N and L
Service voltage [VAC] 230 ±10%
Line frequency [Hz] 50/60 ±1%
Auxiliary consumption typ. [W] 0,93
Power consumption max. [W] 2.7
Fuse Micro fuse, type 5 x 20 mm, T2A/250 V
Rated pulse voltage [V] 2500
TECHNICAL DATA
Page 9
Interfaces TS1 / TS2 / TS3 / TS4
Design 2 spring-type terminals each
Inputs TS1 / TS2 / TS3
Admissible temperature sensor Pt 1000
Output TS4 PWM output
Triac output RO1
Design 3 spring-type terminals each, PE, N and L
Output voltage [VAC] 230 ±10%
Output power max. per output [VA] 200
Output current max. per output [A] 1
Additional switching output REL: 2 potential-free make contacts
Design 4 spring-type terminals
Switching voltage max. [V] 253
Switching capacity max. [VA] 3450
Switching current max. [A] 12
TECHNICAL DATA
Note!
Description of the assignment/conguration at TS4 on page 21.
Page 10 DESIGNATION OF THE COMPONENTS
Drillhole for
securing bolt
Fuse
Housing base
Terminals
Spare fuse
esc button
Display
Rotary encoder
with OK button
Housing cover
Terminal cover
Screw-fastening
of terminal cover
Break-out segments
Screw-fastening of
strain relief device
Strain relief device
Page 11
OPERATION OF THE CONTROLLER
The entire set-up and operation of the differential temperature controller
smart Sol nano is effected via only two control elements on the device front.
All settings and interrogations are effected via the rotary encoder.
To nd a required menu item, turn the rotary encoder to ›scroll‹
through the menu - the selectable option appears on a coloured
background on the display.
To conrm the selected menu item, press the rotary encoder.
An appropriate submenu is called up, or selection is activated.
Press the esc button to make the menu return by one level from any subitem.
If no input is made within the preset time (30-255 s),
the controller returns automatically to the initial level.
Page 12 DISPL AY
For indication of the operating mode and for communication in case of set-up,
malfunction, modication and evaluation, the differential temperature controller
smart Sol nano is equipped with a full graphics display which is permanently backlit.
The display is active as long as there is supply voltage on the controller.
After a preset time (30 - 255 s), backlighting is dimmed to 10%.
Activation
Start
t ON
T ON
1.3.2 Tube colle...
10min
20.0°C Scroll arrow
Activatable menu item
Sub menu arrow
Number and name of menu Professional mode
Manual mode
Message
Check box
Display elements; example:
communication screen
60°C
45°C
System 1 10:01
Active system
with current
temperatures
Display elements; example:
information screen
Time
Page 13
Danger!
Mortal danger due to electrocution! Whenever work is performed on the
open terminal cover, all poles of the power supply must be
disconnected reliably and protected against being switched on again!
1Release the lock screw.
2Swing terminal cover
forward ...
3... push it upwards ...
4... and remove it.
Store the terminal cover
carefully and protect
it against damage!
To close the terminal cover,
reverse the opening procedure.
OPENING THE TERMINAL COVER
Page 14 WALL-MOUNTING
Important!
The device corresponds to protection type IP 20 - make sure the
appropriate prerequisites exist on the envisaged place of installation.
Do not use the housing base as drill template.
A device with damaged housing must not be operated!
1Fasten the top securing bolt so
that a space of 2 to 3 mm is
created between the wall and
the screw head.
2Move the device so that the
upper fastening port is located
above the screw head ...
3... and push it downwards.
4Fasten the lower securing bolt.
If necessary, use dowel
pins for wall-mounting!
Page 15
CONNECTION TO POWER SUPPLY
Danger!
Mortal danger due to electrocution! Whenever work is performed
on the open terminal cover, all poles of the power supply must be
disconnected reliably and protected against being switched on again!
Terminal block REL/RO1/PowerTerminal block TS1-TS4
The differential temperature controller smart Sol nano is connected
to the power supply via two groups of spring-type terminals which are
visible once the terminal cover is opened.
To introduce the cables, release the two screws on the
strain relief device; if necessary, remove the strain relief device.
In case of ush mounting of the cables, the break-out segments in the housing
base can be removed carefully and the cables routed through these ports.
The spring-type terminals for the power supply, RO1, REL, TS1, TS2, TS3 and TS4
can accommodate solid wires up to a cross section of 1.5 mm2.
Appropriate stranded wires must be preassembled with cable end sleeves.
For the strain relief device function, TS1 to TS4 require
cable cross sections of at least 5mm, for Power, RO1 and REL at least 7mm.
Page 16
PWM
RO
TS4
signal
voltage
supply
he pump
CONNECTION TO POWER SUPPLY
The conguration of the boiler
control functions is as shown:
Anti-legionellae Priority 1
Auxiliary heating Priority 2
Boiler control functions
Boiler
REL
9-10
mm
max. 35mm
The strain relief device can only ensure solid clamp-
ing if the cables are not stripped to a length of over
35 mm.
Insulation of the individual wires must be removed
over a length of 9 - 10 mm to ensure safe electric
contact in the spring-type terminal.
Stranded wires must be provided with cable end
sleeves!
For connection, press the actuation pushbutton of the spring-
type terminal using a screwdriver and insert the wire to its stop
in the appropriate port.
Release the actuation pushbutton and pull the cable slightly to
ensure that it is safely clamped.
Important!
Before closing the terminal cover, make
sure the strain relief device is tightened safely.
Check once more that all cables are in good
condition and connected correctly.
Connection of a high-efciency pump
• Connect the voltage supply of the
high-efciency pump to RO1.
• Connect the signal line of the high-efciency
pump to TS4 so that the signal-routing wire
is clamped to the ›S‹ terminal.
Description of the assignment/conguration at
TS4 on page 23.
Page 17
Note!
Dene structure and design of the plant already when planning
the entire solar thermal system and align the design with the
one of the hydraulic systems of the controller!
If you want to complete an existing system or replace the
existing controller, please make sure that smart Sol nano
is compatible with the existing conguration!
The sensors are connected to TS1 to TS3, PWM is connected to TS4, and
the devices to be controlled are connected to RO1/REL – The interfaces
are assigned to their corresponding functions at commissioning.
Description of the assignment/conguration at TS4 on page 23.
HYDRAULIC SYSTEMS
Warm water /
buffer tank with
two heat exchangers
Warm water /
buffer tank with
one heat exchanger
Buffer tank with one
heat exchanger and one
electric heating rod
Temperature probes
Boiler, e. g. using fossil
fuels/ solid fuels/
heat pump etc.
Heating pump
Solar collector panel
Page 18 HYDRAULIC SYSTEM 1
RO1
TS1
TS2
Tank 1
T1
Collector
sensor 1
Tank
sensor 1,
bottom
Solar circuit
pump 1
Collector sensor 1
Tank sensor 1, bottom
Connection to
power supply
Solar circuit pump 1
Page 19
HYDRAULIC SYSTEM 2
Auxiliary heating circuit
RO1
TS1
TS2
Tank 1
T1
Collector
sensor 1
Tank
sensor 1,
bottom
TS3
Tank sensor 1, top
Solar circuit
pump 1
Tank sensor 1, top
Collector sensor 1
Tank sensor 1, bottom
Connection to
power supply
Solar circuit pump 1
Page 20 HYDRAULIC SYSTEM 3
Electric heating rod
Electric heating rod supply
RO1
TS1
TS2
Tank 1
T1
Collector
sensor 1
Solar circuit
pump 1
Tank
sensor 1,
bottom
TS3
Tank sensor 1, top
Tank sensor 1, top
Collector sensor 1
Tank sensor 1, bottom
Connection to
power supply
Solar circuit pump 1
Table of contents
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