Spirotech SPIROVENT SUPERIOR S400 User manual

SPIROVENT®
SUPERIOR S400
maximising performance
User Manual
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61.453_00 V01

User Manual
User Manual
SPIROVENT®
SUPERIOR S400
EN
maximising performance

User manual - 1.0 English 2
EnglishUser manual
TABLE OF CONTENTS
/i
1PREFACE
1.1 About the device
This user manual describes the installation,
commissioning and operation of the following SpiroVent
Superior types:
/i
1.2 About this document
Read the instructions before installation, commissioning
and operation. Keep the instructions for future reference.
The original language of the document is English. All
other available language versions are translations of the
original instructions.
The illustrations in this document show a typical setup
with relevant details for instructional use only.
Differences between the illustrations and the device are
possible but do not have an effect on the
comprehensibility of this document.
All rights reserved. No part of this manual may be
duplicated and/or made public through the Internet, by
means of printing, photocopying, microfilm or in any
other way without prior written permission from
Spirotech bv.
This manual has been composed with the utmost care.
Should, however, this manual contain any inaccuracies,
Spirotech bv cannot be held responsible for this.
1.3 Symbols
Throughout the instructions the following symbols are
used:
1Preface 2
2 Introduction 3
3 Technical specifications 7
4Safety 8
5 Installation and commissioning 8
6Operation 15
7 Failures 19
8 Maintenance 23
9 Guarantee 26
10 CE statement 27
Type Article code Description
S400 MV04A.. Automatic vacuum degasser
S400-R MV04R.. Automatic vacuum degasser,
including integrated refill
function with direct refill
connection.
S400-B MV04B.. Automatic vacuum degasser,
including integrated refill
function with backflow
prevention.
Warning or important note
Note
Risk of electric shock
Risk of burning

3 English User manual - 1.0
2 INTRODUCTION
2.1 Overview of the unit
1 Outlet connection
2 Inlet connection
3Pump
4 Power terminal
5 Control unit - Power box
6Fuses
7SmartSwitch
8 Automatic air vent
9 Check valve of the air vent
10 Deaeration vessel
11 Level sensor
12 Drain connection
13 Bolt
14 Valve behind the pressure gauge
15 Pressure gauge
16 Flow limiter bypass
17 Deaeration valve
18 Check valve of the outlet
19 Flow limiter outlet
20 Solenoid valve
21 Pressure sensor
22 Control unit (HMI)
23 Flow limiter inlet
24 Y-filter
25 Cover
26 Refill connection
27 Solenoid valve refill
28 Check valve refill
29 Water flow meter
30 Break tank
31 Float valve
32 Float switch
33 Flow limiter refill
S400-B
S400-R
S400
22
21
20
19
18
16
17
25
24
23
1
2
4
7
8
3
6
10
11
9
5
13 12 15 14
28
29
30
31
32
26
27
28
29
33
26
27

User manual - 1.0 English 4
2.2 Operation
The figure below schematically shows the operation of
the unit. The letter indications correspond with the main
figure on the previous page.
S400
8
S400-B
S400-R
M
PS
LS
PT
PI
FT
7
14
15
12
318191
224 23
26 33
29
27
28
20
21
11
9
10
7
8
14
15
12
3
19 18
1
2
26
24 23 20
21
31
29
28 27
11
9
M
PS
LS
PT
PI
FT
LS
10
30
32
8
3
M
PS
LS
PT
PI
7
14
12
318
17
191
2324220 16
21
11
15
9
10
17
17
16
16

5 English User manual - 1.0
2.2.1 General
The Spirovent Superior is a fully automatic vacuum
degasser for heating and cooling installations, filled with
heat transfer fluids. These fluids contain dissolved and
free gases. The Spirovent Superior removes these gases
from the installation, preventing problems, caused by
gases in the installation.
2.2.2 Degassing
The unit starts up a degassing process each day at a time
set by the user. The process has two phases:
1 The rinsing phase: The fluid flows from the
installation through the solenoid valve (20) into the
vessel (10). The pump (3) continuously pumps the
fluid from the vessel into the installation. Here the
fluid absorbs gases present in the installation.
2 The vacuum phase: The solenoid valve (20) regularly
closes, starting a vacuum phase. The continuously
running pump (3) provides the necessary
underpressure in the vessel (10). The underpressure
causes the release of the gases dissolved in the
fluid, and these gases are collected at the top of the
vessel. At the end of the vacuum phase, the
solenoid valve (20) opens again, releasing the gases
from the installation through the automatic air vent
(8). The SmartSwitch (7) at the automatic air vent
ensures that the degassing is stopped as soon as
the content of dissolved gases has reached the
minimum level.
2.2.3 Refilling
S400-B and S400-R have an integrated refill function, and
can control the pressure of the installation. To control the
pressure the unit inserts, if necessary, additional
(degassed) fluid into the installation. Alternatively, the
unit can refill on demand of external equipment e.g.
expansion systems.
The refill process consists of a vacuum phase where fresh
fluid is sucked into the vessel (10): system valve (20)
closed, refill valve (27) opened. This is followed by a
flushing phase during which system fluid is flushed
through the vessel to degass the refill fluid.
The unit can also refill the installation in case of abnormal
or total pressure loss.
2.3 Operating conditions
The unit is suitable for use in systems filled with clean
water or mixtures of water and glycol up to 40% .
Operation in combination with other fluids may result in
irreparable damage.
The unit should be used within the limits of the technical
specifications as given in chapter 3. In case of doubt,
always contact the supplier.
2.4 Remote monitoring
2.4.1 Building Management System (BMS)
The Superior has a series of external connectors for
remote monitoring and control.
The device also has the possibility to connect Building
Management Systems to the RS485 connector in order to
communicate, utilizing the following bus system:
•Modbus RTU
2.4.2 Internet
The Superior control unit can be connected to the
Internet, either by means of a LAN cable or by means of
an optional WiFi connection dongle. This allows remote
monitoring of the system. It is also possible to upgrade
the Superior with new firmware (if available) when
connected to the Internet.
2.5 Scope of delivery
•1x SpiroVent Superior
•1x User documentation
•1x Non-return protection (optional)
2.6 CE marking
The unit has a CE marking. This means that the unit has
been designed, constructed and tested in compliance
with the current safety and health regulations.
Provided that the user manual is adhered to, the unit can
be safely used and maintained.
2.7 Type plate

User manual - 1.0 English 6
A Type of the unit
B Absorbed power
CSupplyvoltage
D Protection class
E System pressure
F System temperature
G Serial number
H Year of construction
SPIROVENT SUPERIOR
Article-No.:
Type:
Power input:
Voltage / Frequency:
IP class:
Pressure PS:
Temperature TS:
Serial no.:
Year of manufacture:
Spirotech bv - The Netherlands
A
B
C
D
E
F
G
H

7 English User manual - 1.0
3 TECHNICAL SPECIFICATIONS
3.1 General specifications
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3.2 Operating characteristics
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3.3 Electrical specifications
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3.4 Internet specifications
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3.5 Dimensions
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Item S400 S400-R S400-B
Empty weight [kg] 34 34 35
Noise level [dB (A)], at 1 m 55 55 55
Fluid connections inlet/
outlet
Swivel G¾” female Swivel G¾” female Swivel G¾” female
Fluid connection refil Swivel G¾” female Swivel G¾” female Swivel G¾” female
Item S400 S400-R S400-B
System pressure [bar] 1 - 4 1 - 4 1 - 4
Processing capacity [l/h] 500 500 500
Max. system volume [m3] 100 100 100
System temperature [°C] 0 - 90 0 - 90 0 - 90
Ambient temperature [°C] 0 - 40 0 - 40 0 - 40
Refill pressure [bar] n/a 0 - 10 1.0 - 10
Refill temperature [°C] n/a 0 - 65 0 - 60
Effective refill flow [l/h] n/a 200 250
Item All types
Supply voltage 230 V ± 10% (50 Hz)
Required supply protection
[A]
16
Nominal pump current [A] 3.1
Power consumption [W] 500
Ingress Protection class IP 44
External contacts: common
fault
Voltage free (NO), max.
24V 1A
External contacts: boiler
interlock
Voltage free (NO), max.
24V 1A
External contacts: external
refill voltage [V]
5
Fuse F1, electronic unit
[A(M)]
1
Fuse F2, valves [A(T)] 2.5
Fuse F3, pump [A(T)] 10
Item All types
LAN RJ45; Cat 5e
WLAN WiFi dongle (optional); 802.11 B/G/N
Height [mm] Width [mm] Depth [mm]
930 346 334
346
334
930

User manual - 1.0 English 8
4SAFETY
4.1 Safety instructions
Refer to the safety instructions document for the safety
instructions and other safety information.
5 INSTALLATION AND
COMMISSIONING
5.1 Installation conditions
•Install the unit on a frost-free, well-ventilated place.
•Install the unit in accordance with the local
guidelines and rules.
•Connect the unit to a 230 V / 50 - 60 Hz supply.
•Install the unit as bypass on the main line of the
installation.
•Preferably install the unit at the point in the
installation with the lowest temperature. Here the
most dissolved gases are found in the fluid.
•In case of a heavily contaminated system fluid, a
dirt separator is to be installed in the main return
line of the installation.
•Make sure that the expansion system has the
proper dimensions. The water displacement in the
unit can cause pressure variations in the
installation. Take into account an extra net
expansion volume of at least 2 litres. Make sure the
expansion system connection is properly sized (at
least ¾"/22mm diameter).
•Make sure that the operating panel is always easily
accessible.
•Make sure that you maintain at least the distance as
indicated for service and repair.
•
5.2 Unpack
The unit is delivered on a pallet.
1. Remove the straps.
2. Remove the packaging.
600
600
600
WARNING
To prevent damage to the unit do not hoist
the unpacked unit.

9 English User manual - 1.0
3. Remove the fastener (A).
4. Remove the cover (B) from the unit.
5. Remove the brackets and fasteners. Keep them for
future use.
6. Move the unit to its location of installation. Lift the
unit with a hoist.
5.3 Mounting and installation
5.3.1 Mounting
1. Floor mounting: Place the unit on a flat surface,
against a flat, closed wall. Mount the unit to the
floor. Use brackets and adequate fasteners.
2. Wall mounting: Mount the unit to a flat, closed
wall using the holes and spacers.
5.3.2 Installation
Mechanical
1. Make two branch lines ¾” (A) on the side of the
main transport line.
BA
CAUTION
Make sure that the mounting can support
the filled unit: empty weight + 5 kg!
NOTE
The distance between them should be at
least 500 mm. The inlet of the unit should
be connected to the first connection point in
the flow direction.
1
12
A
500mm
A
B
B
>

User manual - 1.0 English 10
2. Insert a valve (B) in each branch. Preferably, use
lockable ball valves.
3. Connect the line (A) to the flexible outlet line (D).
4. Connect the line (B) to the flexible inlet line (C).
Only applicable to refill units:
1. (-B versions): Connect the makeup water supply
line to the refill connection line (C).
2. (-R versions): Insert a shutoff valve (A) and a
backflow protection (B) in the makeup water supply
line. And then connect it to the flexible refill line (C).
Electrical
1. Loosen the cable gland (A) and take the connector
out of the frame.
NOTE
With these valves the unit can be isolated.
Keep valves closed until the unit is installed
and taken in operation. Refer to § 5.4.
A
D
B
C
A
B
C
CAUTION
•Use a locally approved backflow
protection. A backflow protection can
also be supplied as an option with the
unit.
•Make sure that the pressure of the feed
water is below the system pressure.
•Make sure that the lines leave the unit at
the top. This will avoid fast wear of
hoses.
•Make sure that the breaktank overflow
hose ends inside the unit.
CAUTION
•Preferably, use a grounded wall socket
for the power supply to the unit. The
socket must stay accessible.
•Mount an all-pole main switch (contact
opening >= 3mm) if the unit is directly
connected to the power supply.
•Use supply cables with the correct
dimensions.
A

11 English User manual - 1.0
2. Loosen and remove the connector cap (A).
3. Feed a 3-core supply cable (C) through cable gland
(A) and the connector cap (B).
4. Loosen the screws (B).
5. Insert the wires (A) into the correct holes of the
connector plug.
6. Fasten the screws (B).
7. Fasten the connector cap (B) to the connector (C).
8. Put back the connector in the frame.
9. Fasten the cable gland (A).
/i
10. If an external contact (external refill, common fault,
and/or boiler interlock) or BMS is used, connect the
cables of the external contact or BMS to the correct
connector in the power box (A).
A
A
C
B
9 mm
A
B
2
L1
N
PE
1
N
1
N
Contact Connector
External refill Blue
Common fault Grey
Boiler interlock Yellow
BMS Purple
B
C
A
A

User manual - 1.0 English 12
11. For internet connection, either connect the LAN
cable to the LAN connector (A), or connect the WiFi
dongle (optional) to the USB connector (B).
5.4 Commissioning
5.4.1 Filling the unit
1. Open the valve (C) behind the pressure gauge (D).
2. Open system valves (A and B).
3. Open the deaeration valve (A) to deaerate the
pump.
4. For units of -R and -B versions: Open the shutoff
valve (A) in the refill line.
5. For units of -B versions: Make sure that there is
water in the break tank.
5.4.2 First startup
1. Connect the unit to the mains power.
Automatic Commissioning Procedure
The Automatic Commissioning Procedure will guide you
through the startup via several screens.
CAUTION
Make sure that the LAN cable does not touch
warm parts.
The following processes will automatically
start:
- The unit will be filled with water.
- Air will be released.
- The vessel pressure will equalise with
system pressure.
A
B
A
D
C
B
NOTE
The display of the touchscreen starts and
will guide you through the startup
procedure (Automatic Commissioning
Procedure) and all the basic necessary
settings.
For information on the content of the HMI
(user interface), refer to § 6.1.
A
A

13 English User manual - 1.0
The Automatic Commissioning consists of several steps:
1. Push the start button to start the commissioning
procedure.
2. Select the preferred language, refer to Select the
preferred language.
3. Set the actual time and date, refer to Set the actual
time and date.
4. Select the correct system fluid, refer to Select the
correct system fluid.
5. Set the pressure levels, refer to Set the pressure
levels.
6. Fill up the unit with system fluid, refer to Fill up the
unit with system fluid.
7. Execute the functional test, refer to Execute the
functional test.
Select the preferred language
1. Select your preferred language. The indicator shows
the selected language.
2. Select the next page button ( > ).
Set the actual time and date
1. Set the actual time. Move the wheels of the time
indicator (HH:MM:SS) to the correct time in hours
(HH), minutes (MM), and seconds (SS).
2. Set the correct time zone (UTC). Move the wheel to
the correct time zone.
3. Select the next page button ( > ).
4. Set the actual date. Move the wheels of the date
indicator (DD:MM:YY) to the correct date in day
(DD), month (MM), and year (YY).
5. Select the next page button ( > ).
Select the correct system fluid
1. Select the type of fluid in the system. The indicator
shows the selected type.
2. Select the next page button ( > ).
Fill up the unit with system fluid
1. Open the valves. Refer to § 5.4.1.
2. Select the next page button ( > ).
3. Deaerate the pump. Refer to § 5.4.1.
4. Select the next page button ( > ).
Set the pressure levels
1. Drag the label of the maximum pressure (A) to the
desired maximum pressure.
2. For units of -R and -B versions: Drag the label of
the operating pressure (B) to the desired operating
pressure.
3. For units of -R and -B versions: Drag the label of
the refill pressure (C) to the desired refill pressure.
4. Select the next page button ( > ).
Execute the functional test
1. Push the start button to start the functional test.
NOTE
The minimum operating pressure (D) cannot
be changed.
The functional test only starts if the unit
meets the following conditions:
•The deaeration tank is filled with
system fluid.
•The measured pressure is above the
minimum pressure (0.8 bar).
•For -B versions: the break tank is
filled with refill fluid.
A
C
D
B

User manual - 1.0 English 14
2. When the display shows that the test is completed
successfully, push the OK button and proceed to the
next step, refer to § 5.4.4. The display shows the
home screen and the status is standby.
5.4.3 Check the operation when the functional
test was aborted
1. Go to the home screen.
2. Push the menu button.
3. Select Operating mode.
4. Select Automatic mode.
5. Push the button Degass start.
6. Check the indication of the pressure gauge (A). This
should alternately display overpressure and
underpressure.
5.4.4 Finish the startup
1. Close the valve (B) behind the pressure gauge (A).
2. Put back the cover (A) on the unit and fasten it with
the fastener (B).
NOTE
During the functional test, warnings and
faults can be triggered (refer to § 7.5). If
this happens, remedy the failure and start
the functional test again.
If it is not possible to remedy the failure at
the moment, abort the functional test and
remedy the failure later on. When the
failure is solved, check if the unit is
functioning properly. Refer to § 5.4.3.
NOTE
The SmartSwitch will automatically turn
off the unit when the concentration of
dissolved gases has reached the minimum
level.
A
B
A
B
B
A

15 English User manual - 1.0
6OPERATION
6.1 HMI (user interface) description
This section shows an overview of the content on the
display.
6.1.1 Screen layout
A Date and time indicator
B Operating mode indicator
C Page-specific content
D Navigation bar
E System connection indicator; and Error/warning
indicator
6.1.2 Buttons and indicators
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6.1.3 Overview of the pages
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Button/indicator Description
On/off button
Menu button
Information button
Home button
Confirm button
Next page button
System connection indicator
D
EB
C
A
WiFi indicator
Error indicator
Warning indicator
Radio button (not selected)
Radio button (selected)
Action button (available)
Action button (not available)
Selection wheel
Range indicator with movable
labels
Page Content
Start On/off button
Home •Actual unit state, refer to
§ 6.1.4
•Actual system pressure
•Unit illustration
Button/indicator Description
Degass startDegass start
Critical system llCritical system ll
12
13
14
x.x
x.x x.x
x.x

User manual - 1.0 English 16
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6.1.4 Unit state
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6.1.5 User settings
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Main Menu Navigation buttons to go to other
pages:
•Operating mode
•User settings
•History
•Software upgrade
•Network
•Help (Info)
Main menu
Page Content
Operating mode Operating mode selection:
a Automatic mode:
- Button Degass start
- Button Stop
processes
- Button Low Pressure
refill
b Manual mode:
- Button Degass start
- Button Stop
processes
- Button Low Pressure
refill
- Button Manual mode
cancel
User settings Navigation buttons to go to the
user settings pages:
•Language
•Date and Time
•System fluid
•Degassing
•Refill
•Pressures
•Boiler interlock
•Common fault
For user settings, refer to § 6.1.5
History Navigation buttons to go to
history pages:
•Work history
•Faults history
•Degass graphs
•Counters
Page Content
Software upgrade Only accessible for Spirotech
Network Shows the type of network
Help Navigation buttons to go to help
pages:
•Launch guide
•Device description:
-Overview
-External contacts
-Fuses
•Spare parts
•Warnings description
•Errors description
•Device info (e.g. software
version)
State Description
Device turned OFF The unit is switched off
Standby The unit is not operating and
waiting for a starting command
Pump test The pump is running. The system
valve will stay open
Degassing The unit is degassing
Refill The unit is refilling
Low pressure refill Refill the unit manually
Stopping The system valve will open
Error The unit has stopped because a
critical error has occurred
General settings
Parameter Description
Language The language of the display texts
Select the desired language by
pressing the corresponding radio
button.
Date and Time The actual date and time
Set time (HH:MM:SS), UTC
timezone (HH:MM) and date
(DD:MM:YY) by scrolling the
selection wheels.
Main menu
Page Content

17 English User manual - 1.0
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System fluid System fluid.
Select the used system fluid out of
the list by pressing the
corresponding radio button.
•Water
•Water glycol mixture
Boiler interlock Boiler interlock settings.
External connections/interfaces
can be programmed to open when
pressure drops below or rises
above a critical boiler limit.
These limits can be set after
selecting the boiler interlock.
Common fault General contact for errors
Contact is normally open (NO) by
default, but can be switched to
normally closed (NC).
Is the common fault set to
normally closed (NC), switching off
the mains power will make this
contact NO as long as the power is
switched off.
Degassing settings
Parameter Description
Auto degass time
1
Time setting for daily start time
and stop time of the degassing
process.
Auto degass time
2
Second time setting for daily start
time and stop time of the
degassing process.
Block time Periods that the unit is not allowed
to degass.
•Weekday (every day of the
week can be chosen)
•Year (max. 5 periods per year
can be chosen)
General settings
Parameter Description Refill settings (only for S400-R and S400-B versions)
Parameter Description
Refill volume
alarm after
Maximum allowed refill quantity
per refill. Issues an alarm if a refill
exceeds this threshold.
Range: 0 - 2500 l; 0 = switched
off.
Refill time alarm
after
Maximum continuous refill time.
Range: 0 - 255 min.; 0 = switched
off.
Max. refill
frequency
Maximum number of times per
day that refilling is allowed
Range: 0 - 10 times; 0 = switched
off.
Pressure settings
Parameter Description
Max. system
pressure
Pressure at which the unit stops
and triggers an alarm.
This pressure should be lower than
the system safety valve setting.
Drag the label to the desired
pressure
Desired operating
pressure
The preferred system pressure.
This is the pressure at which the
refilling stops.
Drag the label to the desired
pressure.
Only for S400-R and S400-B
versions.
Refill pressure The preferred system pressure at
which the refilling starts.
Set this value as low as possible
when the refilling is controlled by
an external refill system.
Drag the label to the desired
pressure.
Only for S400-R and S400-B
versions.

User manual - 1.0 English 18
6.2 Switch on the unit
1. Connect the unit to the mains power.
2. Touch the display of the touchscreen.
3. Select the menu button.
4. Select the button User settings.
5. Check if the settings are correct. If not, change the
settings.
6. Select the home button.
7. Select the on/off button.
6.3 Change a setting
1. If you are not at the User settings page, go to the
User settings page.
2. Select the setting you want to change.
3. Change the setting.
4. Select the confirm button ( ).
6.4 Switch off the unit
1. Select the on/off button.
2. Select the button Turn off.
3. If necessary, disconnect the unit from the mains
power.
6.5 Operating mode
6.5.1 Manual operation
1. Go to the Operating mode page.
2. Select Manual mode.
3. Select the button Degass start.
4. Select the button Stop processes to stop the
degassing.
5. Select the button Manual mode cancel.
6.5.2 Automatic operation
1. Go to the Operating mode page.
2. Select Automatic mode.
6.6 Refill
The refill process is automatically controlled by the
pressure limits as defined under settings. Available in the
direct refill version (-R) or the break tank refill version (-B).
The net refill flow depends on water supply pressure (-R
versions) and system pressure.
6.7 Low pressure refill
When the system pressure has dropped to a value below
the minimum operating pressure (1 bar), a low pressure
warning will occur and the unit will ask whether a special
refill procedure will be started to bring the system to the
refill pressure again. In this manual refill cycle, the pump
will be switched on and off and the refill valve will stay
open.
6.8 Various remarks
•When the unit is connected to mains power, the
display is shown automatically after touching the
screen.
•The display switches off automatically after not
being touched for 5 minutes.
•The degassing or refilling process is stopped by a
stop procedure, making sure that the unit stops in a
safe situation (overpressure). This stopping
procedure may take some time (max. 20 seconds).
•When a pump has not run for 96 hours, an
automatic pump test (15 seconds) will run at the
next Auto degass time.
NOTE
The start page shows on the display.
NOTE
The unit is standby.
NOTE
The new setting parameter shows on the
display.
NOTE
The unit stops.
NOTE
Every degassing cycle will start in the pump
test mode, which is the rinsing phase. After
15 seconds, the degassing mode will appear
and the degassing cycle will start (vacuum
phase).
CAUTION
Manually started degassing will not be
controlled by the Smart switch nor by
blocking times and will run continuously.
NOTE
Now the degassing process is controlled by
the Smart switch and will start again at the
next Auto degass time. A new degassing
action always starts with a pump test as a
part of the degassing cycle.
The refill process always has priority over the
degassing process. As soon as system
pressure drops below the “refill pressure”,
the refill process will start.

19 English User manual - 1.0
7FAILURES
7.1 Remedy failures
1. Use the failure table in § 7.5 to find the cause.
2. If necessary, put the unit out of operation. Refer to
§7.3.
3. Remedy the failure.
4. Reset the unit, refer to § 7.4, or put the unit into
operation again, refer to § 6.2.
7.2 Replace a fuse
1. Open the cover (A).
2. Replace the broken fuse.
3. Close the cover.
4. Do a check to see if the failure is resolved.
7.3 Taking out of operation
1. If the unit is switched on, switch off the unit and
disconnect it from the mains power. Refer to § 6.4.
2. Close the valve of the inlet line (A) and the valve of
the outlet line (B).
3. For units of -R and -B versions: Close the valve (C)
in the refill supply line (D).
4. Remove the fasteners (E) and front panel (F).
5. Connect a drain line (H) to the drain connection (G).
6. Drain the unit through the drain connection.
7. Open the air vent screw on the main pump to
completely empty the unit. Refer to the figure in
§ 5.4.1.
7.4 Resetting the unit
1. At the error or warning pop up, select the button
CLEAR FAULT.
WARNING
•In case of a failure always warn the
installer.
•Remove the power and pressure from
the unit before starting repairs. Refer to
§ 7.3 on how to put the unit out of
operation.
•After re-opening the system isolation
valves, always check for possible
leakages.
WARNING
•There are hot parts under the cover. Let
the unit cool down before starting
repairs.
•For electrical specifications, refer to
§3.3.
•Broken fuses F2 and F3 are indicated by
error codes, refer to § 7.5.
A
WARNING
•Make sure that it is not possible to
unintentionally supply power to the
system.
NOTE
It is only possible to select the button CLEAR
FAULT when it is yellow. If the button is grey,
first solve the error.
B
C
H G
F
E
D
A