Integra CALEC ST II User manual

VD 3-126e 07.2018
CALEC®ST II
Multi-protocol heating and cooling energy calculator
Installation and operation manual

2
Table of contents
1Safety.................................................................................................................... 3
Intended use ......................................................................................................... 3
Notes on safety instructions and symbols.............................................................. 3
Safety instructions and precautionary measures ................................................... 4
About the operation manual .................................................................................. 4
2Product description................................................................................................ 5
Areas of application............................................................................................... 5
Structure of a measuring point............................................................................... 5
Device setup ......................................................................................................... 6
3Scope of delivery and accessories........................................................................ 7
4Installation............................................................................................................. 8
Device dimensions................................................................................................ 8
Hole dimensions for wall mounting........................................................................ 8
Clear height........................................................................................................... 8
Tools, installation material..................................................................................... 9
Preparation for wall installation.............................................................................. 9
Wall installation ..................................................................................................... 10
Close the housing.................................................................................................. 10
Mounting on rail DIN-EN 50222............................................................................. 10
5Installation............................................................................................................. 11
Connection diagram.............................................................................................. 11
Power supply......................................................................................................... 12
Sensor power supply............................................................................................. 16
Temperature sensor.............................................................................................. 17
Flow transmitter with pulse output......................................................................... 19
Connection examples for flow transmitters on pulse input #1 ................................ 21
Pulse inputs........................................................................................................... 24
Digital outputs / status signals / alarms.................................................................. 26
Module sockets (communication and functional modules)..................................... 27
6Commissioning...................................................................................................... 36
Starting CALEC®ST II........................................................................................... 36
Functional control.................................................................................................. 37
Display .................................................................................................................. 37
Operation .............................................................................................................. 38
Key functions......................................................................................................... 38
Menu structure...................................................................................................... 39
7Maintenance and repair......................................................................................... 48
Calibration............................................................................................................. 48
8Malfunctions and error messages.......................................................................... 49
9Decommissioning, disassembly and disposal........................................................ 50
Decommissioning.................................................................................................. 50
Disposal ................................................................................................................ 50
10 Technical data....................................................................................................... 51
11 Annex.................................................................................................................... 55
CE certificate......................................................................................................... 55
Drilling hole template............................................................................................. 56

3
1 Safety
Intended use
The device CALEC®St II is exclusively designed for the collection, analysis, presentation and
transmission of information.
Any improper or inappropriate use might result in a state in which the operational safety of the
device cannot be guaranteed anymore. The manufacturer waives any liability for resulting dam-
ages of persons and materials.
Notes on safety instructions and symbols
The devices have been designed to fulfil modern safety requirements. They have been tested
and delivered in a condition that ensures safe operation. However, improper or non-intended use
of the device may result in it becoming dangerous. Please always pay attention to the safety in-
structions in this manual which are accompanied by the following symbols:
WARNING
WARNING indicates an action or measure which, if performed incorrectly, can
potentially cause life-threatening injuries and lead to a high safety risk.
CAUTION
CAUTION indicates an action or measure which, if performed incorrectly, can cause
minor to medium severe injuries.
NOTE
NOTE indicates an action or measure which, if performed incorrectly, may have an
indirect effect on the operation of the device, or trigger an unexpected response.
COMMENT
COMMENT provides information and recommendations for efficient and trouble-
free operation.
See doc. VD 3-126 d,e,f

4
Safety instructions and precautionary measures
The manufacturer takes over no responsibility if the following safety instructions and pre-
cautionary measures are disregarded:
Changes to the device, which are implemented without prior written approval of the manufacturer,
lead to the immediate termination of product liability and warranty.
Installation, operation, maintenance, repair and decommissioning of this device must only be per-
formed by specialists authorised by the manufacturer, operator or owner of the device. The spe-
cialist needs to read and understand the entire installation and operation manual and is obliged to
follow these instructions.
Control the supply voltage and information given on the type plate, before the device is installed.
Check all connections, settings and technical specifications of any available peripheral devices.
Open the housing or parts of the housing, which contain electrical or electronic components, only
if the electric energy is turned off.
Touch no electronic components (ESD sensitivity).
Expose the system concerning the mechanical load (pressure, temperature, IP protection etc.)
maximally to the specified classification.
For works concerning mechanical components of the system, the pressure in the pipe system
has to be released or the temperature of the medium needs to be brought to values harmless for
humans.
No information stated here or anywhere else releases planners, engineers, fitters and operators
from their personal careful and comprehensive evaluation of the respective system configuration
in terms of functionality and operational safety.
The local working and safety standards and statutes need to be met.
About the operation manual
The manufacturer reserves the right to change the technical details without prior notice. The
newest information and versions of this operation manual are available at your local subsidiary or
representation.
WARNING
Any liability is waived if the instructions and procedures in this manual are not
followed!
NOTE
This installation instruction is intended for qualified personnel and contains
thus no basic working steps. Before putting the device or the system into op-
eration, the installation and operation manual needs to be read and un-
derstood completely.
Keep this manual for later reference!
COMMENT
Adhere to requirements and recommendations for installation and operation.
•Adhere to EN1434 Part 6
(installation, comissioning, monitoring and maintenance)
•Adhere to the recommendations of the professinal associations
(leaflets of AGFW)
•Adhere to Requirements for control thermowells
(France accord. to FDE 39-007)

5
2 Product description
We congratulate you for purchasing this high-quality heating and cooling energy calculator.
Areas of application
CALEC®ST II has been designed for the areas of commercial buildings / building technology,
near and district heating / district cooling, residential construction / sanitary and can be used as
follows:
System integration component
With the versatile interfaces CALEC®ST II has to offer you can integrate your energy data of all
thermal applications in the simplest way in subordinate energy management and building control
systems.
Heating/ cooling transmission station
The energy calculator CALEC®ST II offers together with the different flow transmitters of Aq-
uametro AG the perfect combination for the determination of performance data in medium heat-
ing applications, in particular for distribution stations and larger buildings.
Structure of a measuring point
CAUTION
Loss of calibration validity due to changed calibration parameters or a damage of the
calbiration seal
Loss of calibration validity
•The calibration seal prevents the access to calibration-relevant parameters.
•Parameters related to the calibration of calibrated devices can only be adjusted
by the manufacturer or by a designated calibration centre.
•The commissioning of a calibrated measuring point must be made by an au-
thorised organisation according to the valid regulations.
•After commissioning the components of the measuring point must be sealed.
CAUTION
Wrong measuring points due to non-compliance with requirements
Danger of malfunction
•Check whether the information about temperature sensor, pulse value and in-
stallation side matches with the type plate on CALEC
®
ST II.

6





An entire measuring point for thermal energy consists of the energy calculator
CALEC®ST II, paired with temperature sensors and a flow transmitter.
Device setup
Front cover
Connection diagram
(inside of front cover)
Plugable calculator
Motherboard with connection terminals
and micro switches for configuration of
the in- and outputs
Clip-on holder for top-hat rail

7
3 Scope of delivery and accessories
The scope of delivery is described on the delivery note and the content is shown on the packag-
ing. Please check all components and delivered parts immediately after receiving the product.
Transport damages must be reported immediately!
3.1.1 General
1. CALEC®ST II
2. Short operational manual
3.1.2 Installation and connection accessory
Pricking awl
Strain relief discs
Safety caps and front cover
CAUTION
Damages might be caused by non-compliance with the required transportation / and
ambient conditions
Danger of malfunction
•This precision measuring device can be damaged by heat, moisture, dirt and
vibration
•Store the device in a cool and dry place
•removed from
•Remove the packaging only immediately prior to installation

8
4 Installation
CALEC®ST II can be mounted on a mounting rail or on a flat wall. Suitable mounting rails are
available as an accessory.
Please refer to the last page of this document for a hole template for both installation types.
Device dimensions
Hole dimensions for wall mount-
ing
Clear height
(for clipping on the housing cover)

9
Tools, installation material
Flat screwdriver
3.5 x 0.6
Torx screwdriver
TORX T15
Drill bit
Ø6
Screw
3 x Ø4
Dowel
3 x Ø6
Washer
3 x 4.3 x 12
Preparation for wall installation
1. Loosen the screws
2. Open the housing
Wall installation rails are freely accessible
COMMENT
Installation material
•Not included in the delivery
CAUTION
Material damage caused by neglected ambient conditions
Danger of malfunction or damage!
•Assuring accessibility for installation, operation and maintenance
•Protected, dry surroundings
•Avoid exposure to heat/sun
•Keep a safe distance to sources of electrical noise

10
Wall installation
1. Drill holes Ø6mm
2. Screw the device on
Fix the device at the wall
Close the housing
1. Insert the cover into the hinge and
close it
2. Tighten the fixing screws
3. Affix the safety caps (sealing)
(smooth side facing to the outside)
The housing is closed
Mounting on rail DIN-EN 50222
1. Drill holes Ø6mm
2. Screw in the mounting rail
3. Clip the device onto the mounting rail
Fix the device on the mounting rail

11
5 Installation
Carefully read the following calls for action and warning information to assure a trouble-free
commissioning.
Connection diagram
The connection diagram is located on the inside of the front cover (see Fig. 5.1.1)
WARNING
Burns and paralysis resulting in death when touching or grabbing energised
system parts.
Life hazard due to electrical shock!
•Perform installation and maintenance work only when the sys-
tem is off power
•Work on and with voltage shall only be performed by authorised
spe-cialists under consideration of applicable regulations
•Apply voltage only to the terminals intended
COMMENT
The device is equipped with direct plug-in terminal connectors based on the “push-in”
principle.
•Stripped rigid conductors or flexible conductors with crimped ferrules (AEH) can
be plugged directly into the spring terminal
•Reliable, vibration-resistant and gas-tight connection
•Use the “release button” to release the connection
•Connectable conductors (single conductor connection):
oSingle-wire 0.50…1.50mm2
oFinely stranded wire 0.50…1.50mm2
oFinely stranded wire with AEH 0.25…1.50mm2
oAEH with plastic collar 0.25…0.75mm2
oStripping length 8.0 + 1.0mm
oAWG 24-16
COMMENT
The functionality of different connections can be configured with microswitches S1 -
S5.
•The original factory status is documented on the connection diagram
•If required, the alternative functionality shown in the connection
diagram can be made available by switching the corresponding microswitch.

12
5.1.1 Sample connection diagram: analogue outputs in socket #1 and M-Bus in
socket #2.
5.1.2 Overview of configuration options using microswitches
Terminals
Switch
Left function position
Right function position
102 - 103 S2 OUTPUT#2 INPUT#3
10 - 11 S3
INPUT#1: Active transmitter
signal
(5 - 48 VDC)
INPUT#1: Passive transmitter sig-
nal
(e.g. reed)
108 - 109 S4
Sensor supply voltage 24
VDC
Low voltage supply see note on low
voltage supply (page 13)
106 - 107 S5 OUTPUT #1C
Sensor supply voltage
3.6 VDC
Power supply
WARNING
Burns and paralysis resulting in death when touching or grabbing energised
system parts.
Life hazard due to electrical shock!
•Connection to the power circuit only with protection of max.10A and
double-wire isolating element
•Power supply:
oVoltage range 100 – 240VAC
oFrequency range 50 / 60Hz
o
Power requirements max. 15VA

13
5.2.1 CALEC®ST II supply voltage (100-240VAC, 50/60Hz)
1. Assure that the power cable is voltage-
free!
2. Take off the front cover (see 4.5)
3. Use the separation unit
4. Loosen the terminal connection
(terminals L (240VAC) / N (GND))
5. Connect the power supply with the
terminals L (240VAC) / N (GND)
6. Tighten the terminal connection
7. Close the front cover
8. Seal the front cover
CALEC®ST II is supplied with voltage.
NOTE
Damages to the device caused by non-compliance with the installation conditions
Faulty functions
•Protect the power supply with an external overcurrent protection
device (max. 10A), so that a safe shutoff is assured in case of an
electrical error.
•Protect the power supply against manipulation and assure the op-
tion to turn it off for maintenance work.
•Use a double-wire separation unit or a double-wire overcurrent pro-
tection device. However, the circuit for the calculator shall not be
separated from the network independantly from the heating or cool-
ing system.
•
Temperature resistance > 65°C for connection pipes.
COMMENT
Supply voltage connections L and N
•The supply voltage is connected via the two screw terminals in
accordance with on-site regulations.
•The cable is passed through the diaphragm seal using
the enclosed piercing awl.
•Connection wiring
oConnection cross-section max. 2.5mm2
oCladding diameter max. 8mm
oHeat resistance min. 65°C

14
5.2.2 Detailed illustration of the power supply
Insert the piercing awl through the
membrane seal
Remove the isolaton from the cable
and insert it with the piercing awl
through the membrane seal
(A) Power connection terminal
(B) External separation unit
(C) External protection

Tighten strain relief discs
(relieved cable)
Check strain relief
The power supply is connected.
WARNING
Burns and paralysis resulting in death when touching or grabbing energised
system parts.
Life hazard due to electrical shock!
•In case of multiple grounding in field installation an adapter needs to be up-
stream
oGrounding of the pulse input (e.g. pulser AMFLO®MAG Basic)
oGrounding of the sensor supply 3.6V and / or 24V
oGrounding of a low voltage power supply pole
•Low voltage power supply without adapter (isolated supply 24V-24V)
oVoltage range12 – 42VDC / 12 – 36VAC
oFrequency range 50 / 60Hz
oPower requirements max. 1VA
•Low voltage power supply with adapter (isolated supply 24V-24V)
oVoltage range 24VDC ± 20%
o
Power requirements max. 1W

15
5.2.3 CALEC®ST II low voltage supply (12-24VDC)
1. Disconnect CALEC®ST II from power
supply
2. Take off the front cover (see 4.5)
3. Take off the calculator
4. Switch over the switch S4 to
24V
5. Connect the adapter on demand
108+ on adapter to terminal 108 on
CALEC®ST II
109- on adapter to terminal 109 on
CALEC®ST II
6. IN+ and IN- on the adapter to the ex-
ternal measuring unit power supply
7. Plug in the calculator
8. Close the front cover
9. Seal the front cover
CALEC®ST II is supplied with low voltage
or when using an adapter
CALEC®ST II is supplied with a low voltage
and the sensor is supplied with low voltage
CAUTION
Damage or malfunction of the device caused by non-compliance with the installation
conditions
Leading from faulty functions up to an defective device
•Use low voltage power supply only with the switch S4 in position “right”
•Output voltage 24VDC, electrically isolated to all other outputs
•Load: max. 150mA
•Electrically isolated: max. 48VDC
COMMENT
Low voltage power supply connections 108 and 109
•Supply CALEC®ST II with safety low voltage
•The low voltage power supply with adapter allows a parallelisation of the low
voltage and sensor supply
oConnection the sensor with OUT2+ and OUT2- (max. 150mA)
•Adapter available from Aquametro AG
•
Use switch S4 for configuration 24 V

16
Sensor power supply
5.3.1 Sensor power supply 24VDC
1. Disconnect CALEC®ST II from the
power supply
2. Take off the front cover (see 4.5)
3. Take off the calculator
4. Switch over the switch S4
PS1
5. Connect sensor with the terminals 108
and 109
6. Plug in the calculator
7. Close the front cover
8. Seal the front cover
The sensor is supplied with low voltage.
COMMENT
Sensor power supply with 24VDC
•Sensor supply with terminals 108 / 109 can also be used for active supply of
the power outlets, in case the sensor supply is not required.
•When supplying several power outlets it has to be paid attention that they are
electrically isolated.
•Use AMFLO®MAG Smart for flow sensor.
•
Use switch S4 for configuration PS1
COMMENT
Sensor power supply with 3.6VDC
•Sensor supply with terminals 106 / 107
•The connection 107 is connected with the connection 11 and is the reference
potential for the flow transmitter.
•Use AMFLO®SONIC UFA113 for the flow transmitter.
•Use switch S5 for configuration PS2

17
5.3.2 Sensor power supply 3.6VDC
1. Disconnect CALEC®ST II from the
power supply
2. Take off the front cover (see 4.5)
3. Take off the calculator
4. Switch over the switch S5 PS2
5. Connect the sensor with the terminals
106 and 107
6. Plug in the calculator
7. Close the front cover
8. Seal the front cover
The sensor is supplied with low voltage.
Temperature sensor
5.4.1 4-wire temperature sensor
1.
Disconnect CALEC®ST II from the
power supply
2. Take off the front cover (see 4.5)
3. Connect temperature sensor
•Thot terminals 1/5 and 2/6
•Tcold terminals 3/7 and 4/8
4. Close the front cover
The temperature sensors are connected.
NOTE
Damage or malfunction of the device caused by non-compliance with the installation
conditions
Leading from faulty functions up to an defective device
•Check connections carefully.
•Place the temperature sensor not near to power cables or sources of electro-
magnetic disturbances (min. 50cm distance).
COMMENT
Temperature sensor specifications for 4-wire principle
•Connection terminals 1 - 8 (at 4-wire principle)
•Connection wiring
oConnection cross-section min. 0,22mm2
oCable length max. 100m

18
5.4.2 2-wire temperature sensor
1. Disconnect CALEC®ST II from
power supply
2. Take off front cover (see 4.5)
3. Connect temperature sensor
•Thot terminals 1/2
•Tcold terminals 3/4
4. Close the front cover
The temperature sensors are connected.
NOTE
Damage or malfunction of the device caused by non-compliance with the installation
conditions
Leading from faulty functions up to an defective device
•Check connections carefully.
•Place the temperature sensor not near to power cables or sources of electro-
magnetic disturbances (min. 50cm distance).
•The length of the delivered signal lines must not be changed.
COMMENT
Temperature sensor specifications for 2-wire principle
•Connection terminals Thot 1 - 2 and Tcold 3 - 4 (at 2-wire principle)
•Connection wiring
oConnection cross-section:
Head sensor: min. 0.8mm2
Cable sensor: min.022mm2
Cable length: < 50m
Cable cross-section
Cable length Pt100
Cable length Pt500
min. 0.22mm2
2.5m
12.5m
min. 0.50mm2
5.0m
25.0m
min. 0.75mm2
7.5m
37.5m
min. 1.5mm2
15.0m
75.0m
oMaximum cable length according to EN1434-2

19
Flow transmitter with pulse output
5.5.1 Flow transmitter with passive signal at pulse input #1
1. Disconnect CALEC®ST II from the
power supply
2. Take off the front cover (see 4.5)
3. Take off the calculator
4. Switch over the switch S3
PASSIVE
5. Connect the flow transmitter with pas-
sive signal with the terminals 10 a
nd 11
6. Plug in the calculator
7. Close the front cover
The flow transmitter with passive signal is
connected.
NOTE
Damage or malfunction of the device caused by non-compliance with the installation
conditions
Leading from faulty functions up to an defective device
•Place the temperature sensor not near to power cables or sources of electro-
magnetic disturbances (min. 50cm distance).
COMMENT
Flow transmitter with passive signal at pulse input #1
•Keeping the pulse signal specifications for placed flow transmitter
oOpen-circuit voltage: 8V
oShort-circuit current: 8mA
oSwitching level: <1.5mA, >2.1mA
oInput capacity: 20nF
oFrequency range: 0…20Hz 0…200Hz
oMin. OFF (toff): 20ms 2ms
oMin. ON (ton): 3ms 300µs
•Use of a flow transmitter with passive pulse signals
oReed relay
oSSR (solid state relay)
•Programming options for this input see INPUTS (p.39)
•Use switch S3 for configuration passive
•Diagram input circuit

20
5.5.2 Flow transmitter with active signal at pulse input #1
1. Disconnect CALEC®ST II from the
power supply
2. Take off the front cover (see 4.5)
3. Take off the calculator
4. Switch over the switch S3
ACT
5. Connect the flow transmitter with active
signal with the terminals 10 and 11
6. Plug in the calculator
7. Close the front cover
The flow transmitter with active signal is con-
nected
NOTE
Damage or malfunction of the device caused by non-compliance with the installation
conditions
Leading from faulty functions up to an defective device
•Place the temperature sensor not near to power cables or sources of electro-
magnetic disturbances (min. 50cm distance).
COMMENT
Flow transmitter with active signal at pulse input #1
•Keeping the pulse signal specifications for placed flow transmitter
oVoltage range: 3…48VDC
oCurrent signal: >2mA
oReverse polarity protection: -48V
oElectrical isolation: 48V
oFrequency range: 0…20Hz 0..200Hz
oMin. OFF (toff): 20ms 2ms
oMin. ON (ton): 3ms 300µs
•Use of a flow transmitter with passive pulse signals
oReed relay
oSSR (solid state relay)
•Programming options for this input see INPUTS (p.39)
•Use switch S3 for configuration passive
•Diagram input circuit