REGLOPLAS 90smart User manual

En
90smart/150smart
Operating Instructions

V 11/2014
Documentation Temperature Control Unit 90smart/150smart
This documentation is copyrighted. Unauthorised duplication is prohibited
by law. To the best of our knowledge and belief, the information con-
tained in this documentation is true and correct as of the date of publica-
tion. The contents, however, do not constitute a binding obligation on the
part of Regloplas AG and are subject to change without notice.
© Copyright 2013 Regloplas AG
All rights reserved
Printed in Switzerland
Regloplas AG
Flurhofstrasse 158
9006 St. Gallen
Switzerland
Tel.: [phone]
Fax.:
e-mail: [email protected]
Homepage: www.regloplas.com

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Temperature Control Unit 90smart/150smart Contents i
Contents
General Safety Information 1
Safety Symbols.......................................................................................................1
Range of Application...............................................................................................2
Intended Use...........................................................................................................2
Safety Information...................................................................................................2
General information ...................................................................................2
Process Monitoring....................................................................................2
Information for Operators and Personnel ..................................................3
Changing the Parameter Settings..............................................................3
Residual Risks ...........................................................................................3
Using This Documentation......................................................................................4
Additional Documentation..........................................................................4
Operating Instructions 5
General ...................................................................................................................5
Introduction ................................................................................................5
Operating Range........................................................................................5
Start-up ...................................................................................................................6
Setting up the temperature control unit......................................................6
Operating Instructions................................................................................6
Inspection of Consumers...........................................................................7
Water Quality .............................................................................................7
Connecting Lines.......................................................................................7
Electrical Connections ...............................................................................8
Operation of the Temperature Control Unit ............................................................8
RT34 Control System..............................................................................................8
Powering Up...............................................................................................9
Operating mode switch..............................................................................9
Displays....................................................................................................10
Setting the set-point value .......................................................................10
Changing the parameter..........................................................................10
Switch off..................................................................................................10
Malfunctions..........................................................................................................11
Error messages on the device.................................................................11
Device malfunctions.................................................................................11
RT70 Control System............................................................................................12
Buttons.....................................................................................................12
Status LEDs.............................................................................................13
Device Functions .....................................................................................13
Symbols ...................................................................................................13
RT70 Operation and Status Displays ......................................................13
Setting the Set-point values.....................................................................13
Parameter Menu......................................................................................14
RT70 Control System - Functions.........................................................................14
Powering Up.............................................................................................14
Shutdown.................................................................................................14
Leak-stop operation.................................................................................14
Emptying (option).....................................................................................15

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ii Contents Temperature Control Unit 90smart/150smart
Operation with Code/Password............................................................... 16
Alarm Reset and Alarm History............................................................... 16
Save/Reset of the Setting Values............................................................ 16
Changing Consumer/Decommissioning............................................................... 16
Alarm Messages................................................................................................... 17
Alarm list............................................................................................................... 17
Warnings.................................................................................................. 17
Alarms...................................................................................................... 17
System Errors/System Notes .................................................................. 18
Maintenance......................................................................................................... 18
Periodic Inspections and Maintenance Procedures................................ 18
Cleaning................................................................................................... 20
Repairs .................................................................................................... 20
Transport .............................................................................................................. 21
Disposal................................................................................................................ 21
Maintenance 23
Guidelines for Connecting Hoses......................................................................... 23
Technical Data 90smart/150smart ....................................................................... 24
Block diagram 90smart......................................................................................... 25
Block diagram 150smart....................................................................................... 26
Graph (pump capacity)......................................................................................... 27
Graph (Cooling capacity 90smart)........................................................................ 28
Graph (Cooling capacity 150smart)...................................................................... 28
Components/Spare parts 90smart ....................................................................... 29
Components/Spare parts 150smart ..................................................................... 32
Dimension sheet 90smart..................................................................................... 35
Dimension sheet 150smart................................................................................... 36

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Temperature Control Unit 90smart/150smart General Safety Information 1
General Safety Information
Safety Symbols
DANGER
Denotes imminent danger.
Failure to heed the information can result in death or grave personal injury (dis-
ability)!
WARNING
Denotes a dangerous situation.
Failure to heed the information can result in death or grave personal injury (dis-
ability)!
CAUTION
Denotes a potentially dangerous situation.
Failure to heed the information can result in property damage as well as minor
or moderate personal injury!
NOTE
Denotes general information, useful advice to users and work recommenda-
tions, which, however, do not have any influence on the safety and health of
personnel.

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2 General Safety Information Temperature Control Unit 90smart/150smart
Range of Application
This general safety information is generally valid for all temperature con-
trollers and control systems from Regloplas.
Intended Use
The Regloplas temperature control unit is built according to the current
state of the art and the generally accepted principles of safety engineer-
ing. The temperature control unit is intended solely for normal use in the
heating and/or cooling of injection moulds and die casting dies, extruders,
calenders, mixers and other energy-consuming loads ("consumers") in
areas where there is no risk of explosion.
Any use beyond this shall be deemed to constitute improper use. The
manufacturer is not responsible for damage resulting from improper use;
the user is solely responsible for such risks. The temperature control unit
may not be used under operating conditions and/or with media deviating
from our specifications without the prior consent of Regloplas AG.
The intended use also entails compliance with the operating, servicing
and maintenance conditions stipulated by the manufacturer. The temper-
ature control unit may only be operated, serviced and maintained by per-
sonnel that are familiar with these tasks and have been instructed as to
the risks.
Safety Information
General information
The Regloplas temperature control unit is safe to operate but can cause
danger if it is used incorrectly or for a purpose other than its intended
use. It should be noted that any such incorrect use or non-compliance
with the intended use can cause risks to the life and limb of the operator
or third parties, adverse effects on the equipment and other material as-
sets belonging to the user, and risks to the efficient operation of the
equipment.
Start-up (i.e., commencement of intended use) is prohibited until certifica-
tion that the temperature control unit has been set up and wired in ac-
cordance with the Machinery Directive (2006/42/EC). EN 60204-1 (Safety
of Machinery) must also be observed.
These Operating Instructions must be read carefully before switching on
and operating the temperature control unit. The information regarding the
intended use and foreseeable misuse must be observed. Local safety
regulations must also be obeyed.
If the temperature control unit is used in combination with products made
by other manufacturers, the notices and safety regulations of these man-
ufacturers must also be obeyed.
Process Monitoring
In plants in which a malfunction of the temperature control system leads
to endangerment of the operating personnel or destruction of the plant,
an independent process monitor that reliably shuts down the plant must
be used.

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Temperature Control Unit 90smart/150smart General Safety Information 3
Information for Operators and Personnel
The operator and all persons who are tasked with working on the tem-
perature control unit must obey the fundamental regulations regarding
work safety and accident prevention. The operator must ensure that only
persons who have read and understood these Operating Instructions, in
particular the chapter on safety, may work on the temperature control
unit.
Any working methods that have a negative effect on the technical safety
of the temperature control unit must not be used. The operator must en-
sure that the temperature control unit is operated only in flawless condi-
tion. If necessary, the company using the equipment must obligate the
operating personnel to wear protective clothing.
For all tasks relating to set-up, start-up, operating, modification of operat-
ing conditions and operational methods, maintenance, inspection and re-
pair, any shut-down procedures stated to be necessary in the Operating
Instructions must be followed.
Changing the Parameter Settings
The parameterisation of the control system may only be carried out by
personnel trained by Regloplas. In particular, no parameters in the device
configuration may be changed without consulting Regloplas.
The relevant accident prevention regulations and the generally accepted
principles of safety engineering, occupational medicine and structural en-
gineering must be observed. The national safety regulations must also be
obeyed.
Residual Risks
Any unauthorised modifications and changes to the temperature control
unit as well as unauthorised changes to the parameterisation of the con-
trol system are prohibited for reasons of safety.
If the temperature control unit is damaged, it must not remain in use; the
defective part must be replaced or repaired immediately. Only original
Regloplas replacement parts may be used. Damage due to the use of
third-party parts renders any and all warranty claims null and void.
DANGER
The temperature control unit must be disconnected from the electrical power
supply before it is opened (unplug the mains plug and, if fitted, press the main
switch on the temperature control unit). Danger of electric shock!
Any leaks in the temperature control circuit (control unit, connecting lines,
consumers, etc.) must be repaired immediately.
In the case of temperature control units that use oil as the heat transfer
medium, please remember that oil is flammable under certain conditions.
For this reason, the temperature control unit must not be located close to
heat sources. The thermal insulation in the device must always be kept
clean. Insulation that is soaked with thermal oil poses an increased risk of
fire.
Burning thermal oil can be extinguished using an AFFF spray foam fire
extinguisher, a powder fire extinguisher (to be avoided in the case of
dust-sensitive plants, control systems, EDP, etc.) or a CO2fire extin-

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4 General Safety Information Temperature Control Unit 90smart/150smart
guisher. The appropriate fire extinguisher must be provided by the opera-
tor, taking into account the equipment located in the room and the man-
datory safety regulations.
The temperature control unit may only be operated when all safety sys-
tems are completely installed and intact.
The temperature control unit must be protected against sprays and clean-
ing agents.
Before detaching connecting lines from the temperature control circuit,
first allow the temperature control unit to cool down, as a function of the
outlet temperature, and then switch it off. Check that the pump is no
longer running.
WARNING
Important - Danger of injury in the event of escaping water or oil!
Using This Documentation
This documentation contains important information for safe and economi-
cal operation and proper maintenance of the device.
Compliance with this documentation helps to avoid danger, minimise re-
pair costs and downtime, and increase the dependability and service life
of the device/system.
NOTE
The operating instructions should be kept near the corresponding de-
vice/system and always be accessible to operating and maintenance personnel.
Additional Documentation
The included documentation is completely correct for the basic versions
of devices. Components that do not belong to the basic hardware are
noted as extra equipment. The corresponding additional documents are
included with special versions of devices. Any additional documents sup-
plement and/or replace the descriptions contained in this documentation,
which are then either invalid or only conditionally valid.

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Temperature Control Unit 90smart/150smart Operating Instructions 5
Operating Instructions
General
Introduction
These Operating Instructions contain a detailed description of the Tem-
perature Control Unit 90smart/150smart as well as important information
for safe operation and optimal maintenance.
The Operating Instructions must be kept near the temperature control
unit and must always be accessible to operating and maintenance per-
sonnel.
Operating Range
The operating range and heat transfer fluid of the Temperature Control
Unit 90smart/150smart are shown in the following table (in this regard,
see also the chapter "Technical Data" in the Maintenance section).
Temperature Control
Unit Type 90smart 150smart
Temperature range up to 90 °C up to 150 °C
Heat carrier/medium Water Oil
NOTE
The technical data and information for installation, start-up and maintenance of
the temperature control unit can be found in the maintenance section of these
operating instructions. The Operating Instructions should be kept near the de-
vice/system and always be accessible to operating and maintenance personnel.

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6 Operating Instructions Temperature Control Unit 90smart/150smart
Start-up
Setting up the temperature control unit
The temperature control unit is designed for an ambient temperature
range of 10-40 °C. Sufficient ventilation must be provided during setup.
The distance between the devices and/or between the temperature con-
trol unit and a wall must be at least 10 cm. The ventilation slits must not
be covered.
Check the temperature control unit to ensure that it is undam-
aged and complete
Do not tip the temperature control unit! Heat transfer medium
remaining in the unit from the test run could spill, and there is a
risk that the thermal insulation could become soaked with the flu-
id (medium)
Position the temperature control unit on a horizontal surface and
engage the wheel brake
WARNING
The temperature control unit may be pressurised - Danger of injury in the event
of escaping hot water or steam.
Never start up the temperature control unit without the side panels and hous-
ing.
Never use the temperature control unit in potentially explosive environments
and protect it against sprays and cleaning agents that contain solvents.
Any leaks in the temperature control circuit (temperature control unit, connect-
ing lines, consumers, etc.) must be repaired immediately.
Observe local laws during set-up.
CAUTION
Before detaching connecting lines in the temperature control circuit, the tem-
perature control unit must first be allowed to cool down. The cooling time will
depend on the outlet temperature. The shutdown procedure is initiated by
pressing the ON/OFF button. The pump continues to run. The temperature con-
trol unit cools down until the temperature of the heat transfer medium has
reached the programmed coastdown temperature (factory default 60 °C). The
pump and the control system are then switched off!
Check that the pump is no longer running and that the system pressure gauge
reads 0 bar (display on the screen reads OFF)!
The corresponding chapters of the Operating Instructions must be read before
starting up the temperature control unit!
Operating Instructions
The Operating Instructions for the temperature control unit must be kept
at all times close at hand for the personnel responsible for start-up and
operation. Please ensure that the operating instructions are read. By do-

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Temperature Control Unit 90smart/150smart Operating Instructions 7
ing so, you will avoid unnecessary expense and problems during start-up
as well as production downtime.
Inspection of Consumers
Before installing the connecting lines between consumer and tempera-
ture control unit, the consumer must be subjected to the following inspec-
tions:
Verify that channels are unobstructed
Remove residual fluid and dirt with compressed air (foreign ob-
jects such as shavings etc. can damage the pump)
Rust and scale deposits must be removed because they greatly
interfere with the heat exchange between consumer and heat
transfer medium and increase the pressure drop in the consum-
er. Descaling can be carried out using the Regloplas REG de-
scaling unit (see the "Regloplas Temperature Control Technolo-
gy" brochure, REG data sheet)
Water Quality
The water used must meet the following requirements to avoid damage
to the cooler of the temperature control unit:
Criterion Requirement
Appearance clear/without sediment
Cloud < 0.5 NTU (very light cloud)
Total hardness < 10 °dH
pH-value 6.5-8.5
Conductivity max. 500 µS/cm
Carbonate hard-
ness < 5 °dH
Addition of RK93 corrosion inhibitor is urgently recommended (see the
"Regloplas Temperature Control Technology" brochure, RK93 data sheet).
Connecting Lines
The connecting lines must consist only of pressure-resistant and temper-
ature-resistant hoses and screw fittings. The cross-section of the con-
necting lines may not be reduced (see Maintenance section).
The connecting lines must be routed so that they are protected
against unintentional contact. Thermal expansion must be taken
into account in pipe joints
When connecting to public water mains, the applicable laws and
safety regulations must be observed (e.g., connection of the unit
via backflow preventer). The water mains pressure must be with-
in the range of 2-6 bar
Cooling water outlet - must prevent reverse flow and must be al-
ways open. The hose must be fastened so that any escaping
steam at the start of the cooling procedure does not pose a haz-
ard

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8 Operating Instructions Temperature Control Unit 90smart/150smart
For reasons of safety, the cooling system must always be con-
nected
CAUTION
When escaping, the temperature of the cooling water can increase to the same
temperature as the heat transfer medium.
Electrical Connections
The temperature control unit may only be connected by a qualified elec-
trician.
Compare supply voltage and frequency with the information on
the rating plate of the temperature control unit
Verify the rating of the preliminary fuse according to the infor-
mation in the electrical diagram, and check that the power con-
sumption conforms to the value on the rating plate of the temper-
ature control unit
Observe the applicable local laws and safety regulations when
connecting to the mains
Operation of the Temperature Control Unit
The temperature control unit must only be switched on after inspecting
the consumer, connecting the connecting lines and electrical connec-
tions, and opening the outlet/inlet shut-off valves. The vent valves on the
consumer and the shut-off valves (if present) must be open.
RT34 Control System
RT34 Control System - front panel

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Temperature Control Unit 90smart/150smart Operating Instructions 9
Powering Up
After carrying out the checks on the consumer, connecting the hoses and
electrical connections, proceed as follows:
Open the vent valve on the consumer, and also the shut-off valve
(if fitted)
Switch on the control unit/pump with the I/O switch
The operating mode switch on the front panel must be at position
+(normal mode). After switching on, a function test runs in the
RT34 controller for about 5 seconds. All displays flash during the
test. After successful conclusion of the test, the actual value ap-
pears in the upper display field and the set-point value in the
lower display field
The water is now automatically refilled. This process can take 2-4
minutes depending on the water mains pressure. An alarm rings
during this time. The control unit can also be filled manually via
the filling opening on the filler cap
Check direction of rotation of the pump following the arrows on
the fan shroud (remove side panels). If the direction of rotation is
incorrect, two phases must be reversed on the unit plug
NOTE
Important - The operating mode switch must be at position +, i.e. pressure
mode!
Check the temperature control circuit (control unit, connecting
lines, consumers, etc.) for leaks
Do not close the vent valve on the consumer until water is flow-
ing out of the consumer at a regular rate
Operating mode switch
Pressure mode
Normal mode - The heat carrier is pumped through the consumer by
pressure (switch position +)
Leak stop mode
The heat carrier is drawn by the consumer (reduced pump capacity,
switch position -)
Suction
The heat carrier is drained out of the consumer by suction, switch posi-
tion A. Cool down device and switch off, turn switch to position -and
switch device on again. Turn switch to position Aand hold down until fully
drained (observe maximum expansion volume!)

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10 Operating Instructions Temperature Control Unit 90smart/150smart
NOTE
Important - When switching between the operating modes Pressure and Leak
stop mode, the temperature control unit must be switched off at the I/O switch!
Displays
Display Remark
OUT 1 The heating is switched on when the LED is on
ALM The cooler is switched on when the LED is on
Level The light is on if there is insufficient heat carrier
Motor The light is on if the thermal relay has been triggered
Setting the set-point value
Press SET, Sv flashes
Set the set-point value using the or button
Press SET, the new value is activated
Changing the parameter
Press SET for a few seconds until Pv appears
Pv value flashes
Tap SET until Lkv appears
Set Lkv to 1 (clearance)
Tap SET until the desired parameter appears
Set the value using the or button
Press SET for a few seconds - End (set-point value/actual value
is displayed)
Switch off
Cool down device or temperature control circuit to a minimum of
80 °C
Switch off the device/pump with the I/O switch
WARNING
Danger of injury from escaping hot cooling water!
Before detaching connecting lines from the temperature control circuit, first al-
low the temperature control unit to cool down, as a function of the outlet tem-
perature, and then switch it off!
Check that the pump is no longer running!

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Temperature Control Unit 90smart/150smart Operating Instructions 11
Malfunctions
WARNING
Unplug the mains plug before performing troubleshooting!
Error messages on the device
Display Remark
The light is on if there is insufficient heat carrier - possible
causes:
Device is refilled
Cooling water supply not connected or shut off (shut-
off valve)
Filter dirty
Solenoid valve water filling (Y2) dirty
Level switch defective
This light is on if the thermal relay has been triggered - possi-
ble causes:
Pump overheated (lines blocked)
Incorrect value set on thermal relay (see information
on electrical wiring diagram and rating plate on the
pump)
Switch thermal relay on again using the reset button
(S5) on the back of the control unit
Device malfunctions
Malfunc-
tion Remark
Device
does not
heat up
Safety thermostat (F5) triggered:
Check level control (water level in the device) and
switch safety thermostat (F5) on again using reset
button on the heating
Heating contactor defective
Device
does not
cool
down
Water flow in cooler too low - possible causes:
Solenoid valve cooling defective or dirty
Filter dirty
Cooler coated with lime
Replace cooler or clean using descaling unit
Device
overfilled
Automatic water filling does not switch off. Possible causes:
Float switch defective
Solenoid valve water filling (Y2) defective or dirty
Leak in cooler
Clean or replace defective parts

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12 Operating Instructions Temperature Control Unit 90smart/150smart
Pt100 Malfunction
This indication means that the internal temperature sensor Pt100 is de-
fective. In this case, the float switch has to be replaced.
RT70 Control System
RT700 Control System - front panel
Buttons
Setting the set-point value Scrolling through pages
Setting the additional display Setting the parameters
Selection of the device functions (toggling
SP1/SP2, drainage by suction, leak-stop) Alarm reset and alarm history
Button ON/OFF Enter key
Navigation upward Navigation downward
Status display
Display of set-point
value SP1/SP2 or ex-
ternal operation
Selection of the
device functions
Additional display
Symbol area
Interface address
Status LEDs
Display of actual
value

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Temperature Control Unit 90smart/150smart Operating Instructions 13
Status LEDs
Normal mode Warning Alarm
Device Functions
Set-point value toggling SP1/SP2 Draining (suction or blowing out)
Leak-stop mode
Symbols
Interface operation Level of the heat transfer medium (filled
quantity) LOW
Level of the heat transfer medium (filled
quantity) OK Heating
Ramp program activated Timer activated
Cooling Feed pump, counterclockwise rotation
Feed pump, clockwise rotation Alarm
Maintenance due (flashes if maintenance is
due)
RT70 Operation and Status Displays
In the off state of the RT70 control system, the message OFF appears in
the display area. Upon switching on with the ON/OFF button, the addi-
tional display is shown. The top left part of the display shows the set-
point temperature SP1 or SP2 (SP = Set point). The top right part of the
display shows the current outlet temperature (actual value of temperature
sensor Sn1, Sn2 or Sn3).
Sn1 = Outlet temperature
Three other selectable values are shown in the middle part of the display.
The additional display can be set by using the F2 key and by turn-
ing/pressing the RCD control knob (turning selects a value, pressing con-
firms it).
The symbols for set-point value display, suction operation (draining) and
leak-stop operation are shown in the lower left part of the display. The
various operational and status displays of the temperature control unit
are shown in the lower right part of the display.
Setting the Set-point values
The set-point values SP1 and SP2 are set by pressing the key F1. The
set-point value is then coloured light blue and can be set with the RCD

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14 Operating Instructions Temperature Control Unit 90smart/150smart
control knob. This setting is also possible in the parameter positions. The
set-point values can be selected via an external digital signal.
To toggle between set-point values SP1 and SP2, press the F3 button
and select the set-point toggling function. Set-point toggling is only possi-
ble if there is no alarm pending.
Parameter Menu
The parameter menu is activated by pressing the Parameter button. In
this menu, all the parameters can be configured by turning/pressing the
RCD control knob.
RT70 Control System - Functions
Powering Up
Upon switching on the main switch, the message OFF appears in the
display. The RT70 control system is now ready for operation and is
switched on by pressing the ON/OFF button, or by the timer, through a
digital input or an interface.
The display, depending on the programming, shows the set-point and ac-
tual values, as well as information on the operational state of the control
system or the temperature control unit.
Rotational field detection / Direction reversal
The rotary field detection of the RT70 control system detects a wrong
phase sequence and reports this in the display or corrects the direction of
rotation automatically.
Shutdown
The RT70 control system is switched off by pressing the ON/OFF button,
by the timer, via a digital input or an interface.
Depending on the temperature of the heat transfer medium, the shut-
down program runs as follows:
The pump and the control system are switched off. The RT70
control system will then be in standby mode and the message
OFF appears on the display.
The pump continues to run. The unit cools down until the tem-
perature of the heat transfer medium has reached the pro-
grammed coastdown temperature. On reaching this temperature,
the pump and the control system are automatically switched off.
In the case of pressurised water units, the pump then continues
running for a further few seconds in the opposite direction (pres-
sure release). The RT70 control system will then be in standby
mode and the message OFF appears on the display.
Leak-stop operation
The leak-stop operation is activated by pressing the F3 key and selecting
the leak-stop symbol and is only possible if it is supported by the device
type.

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Temperature Control Unit 90smart/150smart Operating Instructions 15
The leak stop operation is only possible if water is used as the heat trans-
fer medium and the set-point value is in the vicinity of the value run-on
temperature (0-80 °C). Pressurised water units do not have any leak-stop
operation.
When oil is used as a heat transfer medium, the set-point value must be
within the range 0-250 °C. The heating capacity is then max. 60 %, since
the thermal load of the oil must be kept low owing to the reduced pump
capacity.
The leak-stop operation can be cancelled by pressing the ON/OFF but-
ton. When the ON/OFF button is pressed again (wait until the display
reads OFF), the unit switches back to normal operation.
Clearance for the Leak-Stop Function
The leak-stop function is not permitted with every device (e.g. if a change
in the direction of rotation of the delivery pump is not possible). The
clearance of the leak-stop function is set in the parameter menu.
DANGER
The leak-stop operation is an emergency operation and may only be switched on
or cleared for devices intended for the purpose. A leak-stop operation in the
case of devices not intended for the purpose can cause a fire.
Emptying (option)
The consumer device can be drained using the delivery pump (suction)
or by means of compressed air (blowing out); (setting in the parameter
menu).
Drainage by Suction with Pump
The suction program allows the draining of the consumer connected at
the temperature control unit and is activated by pressing the F3 button
and selecting the suction symbol. The pump is switched off, and after the
pump coastdown time has elapsed the pump is switched on again in the
opposite direction. The consumer is drained by suction during the defined
period (draining time).
Draining is only possible if the temperature of the heat transfer medium is
below the programmed coastdown temperature value. If that is not the
case, the heat transfer medium is first cooled to this value.
Blowing out with Compressed Air
The blowing out program enables the user to drain the consumer con-
nected to the temperature control unit by means of compressed air. Blow-
ing out is activated after the pump coastdown time has elapsed and di-
rects compressed air through the consumer. The temperature control unit
switches off automatically after the set period (draining time) has
elapsed.
The suction or blowing out program can be aborted by pressing the
ON/OFF button. When the ON/OFF button is pressed again (wait until the
display reads OFF), the unit switches back to normal operation.

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16 Operating Instructions Temperature Control Unit 90smart/150smart
NOTE
In the case of pressurised water units, the pressure release valve (Y8) closes at
5 °C above the coastdown temperature (max. 85 °C) and opens at the pro-
grammed coastdown temperature during the cooling process (only devices with
1K/2K).
Operation with Code/Password
In order to prevent the values that have already been set or programmed
from being unintentionally reset/adjusted, the use of a code/password is
urgently recommended. The code is defined in the parameter Code.
The RT70 control system has three password levels that are organised
hierarchically:
User password - Default 0000 (switched off)
Technician password - Default 0070
Service password - only for personnel trained by Regloplas
NOTE
It is strongly recommended that an operator password should be set up when
commissioning the temperature control unit.
Alarm Reset and Alarm History
Alarm Reset
If an alarm has been triggered, the signal horn can be switched off by
pressing the Alarm Reset button. After the malfunction has been reme-
died, the alarm can be reset by again pressing the Alarm Reset button.
Alarm History
If there is no alarm pending, the Alarm Reset button can be used to view
the alarm history.
Save/Reset of the Setting Values
The RT70 control system provides the facility to reload the factory set-
tings or user settings at any time by a simple procedure. Two different
new customer-specific settings can be loaded (user setting 1 and 2).
Changing Consumer/Decommissioning
Before detaching the connecting lines, it is necessary to verify that the
temperature control unit is turned off and that all circuits are depressur-
ised (see the chapter "Switching off the Temperature Control Unit"). The
temperature control unit must be drained completely and stored in a dry
place at 10-40 °C when not in use. To restart the unit, proceed as in-
structed in the "Start-up" chapter.