Hoval ServeCool User manual

System control for ServeCool
Operating Instructions
System control
for ServeCool
Operating Instructions
4 219 126-en-01

1 Use 3
1.1 Intended use .................................................................. 3
1.2 User groups ................................................................... 3
2 Basic principles 4
2.1 Operating modes ........................................................... 4
2.2 Setpoint sets.................................................................. 4
2.3 Operating and display elements on the control panel..... 5
2.4 Icons .............................................................................. 6
2.5 Buttons in the header..................................................... 6
3 Process diagram 7
3.1 Overview........................................................................ 8
3.2 Specications................................................................. 9
3.3 Fault messages.............................................................. 9
3.4 Process diagram.......................................................... 10
4 Data points 11
4.1 Night-time reduction..................................................... 12
4.2 Emergency operation................................................... 12
5 Zone control 13
5.1 Set points..................................................................... 14
5.2 Process diagram Zone................................................. 15
5.3 Data points Zone.......................................................... 16
6 Faults 17
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Content

1 Use
1.1 Intended use
The ServeCool system control is used for clearly laid-out operation of ServeCool
units. It is operated via the web application integrated in the controller with a
graphical user interface (Web GUI). Any web browser can be used for access via
the interface directly on the unit (recommended web browser: Google Chrome).
The system control gives trained users access to all information and settings that
are necessary for normal operation:
■Display and setting of operating modes
■Display of actual values (temperature, humidity, ow rate, ...)
■Display and setting of set values
■Display and programming of the annual calendar
■Display and handling of alarms and faults
■Display and setting of control parameters
■Password protection
Intended use also includes compliance with the operating instructions. Any usage
over and above this use is considered to be not as intended. The manufacturer
can accept no liability for damage resulting from improper use.
1.2 User groups
There are 4 user levels:
User level User group Access rights Access
Guest Untrained users ■Read rights
■Fault reset
free
LeveL 1 Trained users ■Read rights
■Write rights
– BMS set values
– Operating parameters
– Fault reset
– Control parameters
Protected by a password
Factory setting:
12345
LeveL 2 Trained users with
extended access
rights
■Read rights
■Write rights
– Calendar
– BMS set values
– Local set values
– Operating parameters
– Fault reset
– Control parameters
Protected by a password
(password handover at
commissioning of the plant)
LeveL 3 Super user ■Read rights
■Write rights
– Calendar
– BMS set values
– Local set values
– Operating parameters
– Fault reset
– Control parameters
Protected by a password
(password handover at
commissioning of the plant)
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2 Basic principles
2.1 Operating modes
The ServeCool unit has the following operating modes:
■Summer operation
■Winter operation
The system control controls and regulates the unit according to demand and
depending on the operating conditions. Switching between summer and winter
operation is carried out via the time program.
Operating
mode
Description Use
Summer
operation
The unit uses the following cooling processes depending on the
temperature and moisture conditions:
■Indirect free cooling with fresh air
■Indirect adiabatic cooling
■Mechanical aftercooling (for covering load peaks)
The chiller for supplying the cooling coil and the water supply are
in operation.
During the hot
season
Winter
operation
The unit uses the following cooling processes depending on the
temperature and moisture conditions:
■Indirect free cooling with fresh air
■Mechanical aftercooling (for covering load peaks)
The chiller for supplying the cooling coil is in operation. There is
no need for a water supply.
Attention
The adiabatic system must be drained and frost-proofed
during winter operation.
During the cold
season and
in transitional
periods
2.2 Setpoint sets
2 setpoint sets can be specied:
■Set values for local mode
■Setpoints for BMS operation
(The setpoints are specied by the building management system.)
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System control for ServeCool Basic principles
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2.3 Operating and display elements on the control panel
1
2
3
4
5
■
1
Operation indicator light
■
2
Indicator lamp and pushbutton Fault / Reset
■
3
Local / BMS selector switch
■
4
Network interface
■
5
Main switch
Operation indicator light
Green... ServeCool unit ON or in standby mode
O󰀨........ ServeCool unit OFF
Indicator lamp and pushbutton Fault / Reset
Red...... There is a fault message.
Press the button to acknowledge faults.
Local / BMS selector switch
■Local mode: The unit controller operates autonomously according to the
specications from the internal memory.
■BMS mode: The unit controller operates according to the specications from
the building management system.
Switching between local mode and BMS mode is done via the selector switch on
the control panel or via a software switch (software parameter 9000-08 in the Data
points screen). The following applies:
Setting
Control panel selector switch
Value
Software switch Valid
Local Local Local
Local BMS Local
BMS Local Local
BMS BMS BMS
Network interface
RJ45 interface for access to the unit controller
Main switch
The main switch disconnects the system from the power supply and, if necessary,
interrupts the optional UPS (uninterruptible power supply).
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2.4 Icons
Icon Meaning
Edit value
Save value
Cancel
Display help text
Fault
Manual set value active
2.5 Buttons in the header
1 2
■
1
Open Process diagram screen
■
2
Open Data points screen
1 2 3
■
1
Fault exists |Show fault messages
■
2
Current user level |Enter password
■
3
Select language
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System control for ServeCool Basic principles
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3 Process diagram
The Process diagram screen shows the following information and buttons:
1
3 4
2
■
1
Overview: Information about valid set value specifications and the current operating mode
■
2
Process diagram with current measured values and status displays
■
3
Specifications: Entering the set values and the time program
■
4
Fault messages: Display and reset of faults
Notice
Depending on the installed unit type and optional components, the display
on the screen may di󰀨er from the display in this manual.
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System control for ServeCool Process diagram
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3.1 Overview
Set value specication
Display of the currently valid set value specication:
– Set values for building management system mode (BMS)
– Set values for local mode (Local)
Switching between local mode and BMS mode is done via the selector switch on
the control panel or via a software switch (software parameter 9000-08 in the Data
points screen).
Operating mode
Display of the current operating mode:
– Summer
– Winter
Switching between summer and winter operation is done via the time program
(see section chapter 3.2).®
Sequence
Display of currently used cooling processes:
– Indirect free cooling with fresh air
– Indirect adiabatic cooling
– Mechanical aftercooling
Power supply
Status display of the power supply
Position ATS (automatic transfer switch)
Display of currently used power supply
You can dene the priority for the power supply in the Data points screen
(control panel parameter 0000-06).
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System control for ServeCool Process diagram
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3.2 Specifications
BMS/Local set value specications
Displaying the set value specications for BMS operation, displaying and setting
the set value specications for local operation:
– Temperature (supply air)
– Humidity (supply air)
– Flowrate (supply air)
– Enabling (unit)
■In each case, click on the icon.
■Enter the desired value.
■Click the icon to save the value.
CPS
Dene the target temperature for the Condensation Prevention System to prevent
condensation of moisture in the recirculation air ow:
– Temperature (fresh air after admixture of exhaust air)
Time program Winter operation
Dene the period in which the unit runs in the 'Winter' operating mode.
■In each case, click on the icon.
■Enter the on and o󰀨 dates for winter operation.
■Click the icon to save the value.
Attention
When switching to winter operation, ensure that the adiabatic system is
drained and frost-proofed.
3.3 Fault messages
The list of fault messages shows all faults with date and time of their occurrence:
– Active faults appear in red.
– Corrected faults appear in green.
■Click on 'Reset' to acknowledge faults.
Notice
The list of past faults is successively loaded by the unit controller.
For data that is further back in time, the loading times may be longer.
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System control for ServeCool Process diagram
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3.4 Process diagram
The process diagram shows a unit overview with current measured values and status displays.
10 Supply air
1003 Combination sensor supply air
1004 Bypass damper cooling coil
1005 Combination sensor E monitoring
1006 Supply air flowrate
20 Extract air
2000 Combination sensor extract air
2001 Extract air filter
30 Exhaust air
3003 CPS damper (Condensation Prevention System)
3004 Exhaust air flowrate
40 Fresh air
4000 Combination sensor fresh air
4001 Fresh air filter
4002 CPS damper (Condensation Prevention System)
50 Chilled water
5000 Cold water valve
60 Adiabatic
6000 Feed valve
6001 Drain valve
6002 Adiabatic pump
6003 Liquid level switch (too high)
6004 Liquid level switch (too low)
6005 Combination sensor conductivity measurement
6006 Flow sensor
70 Humidification
7000 Humidifier
7001 Hygrostat
7002 Drain valve
7003 Combination sensor humidifier
↑
Data point number: Under this number you will nd the component in the data point list.
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System control for ServeCool Process diagram
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4 Data points
The Data points screen displays the operating and control parameters of the system
control:
■The parameters are thematically grouped:
– Click a group or component to show/hide the associated parameters.
– Depending on the current user level, not all values are displayed.
■Move the mouse pointer over the icon to display the help text for the
respective parameter.
■Editable values are marked with the icon:
– Click on the icon.
– Enter the desired value.
– Click on the icon to save the value or click on the icon to cancel
without saving.
– If the value in the current user level must not be changed, the editing icon is
inactive and greyed out.
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System control for ServeCool Data points
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4.1 Night-time reduction
Notice
Use the 'nighttime reduction' function so the unit will be operated particu-
larly quietly during the night. It reduces the exhaust air ow rate and thus
the noise level of the fans. But please note that the cooling power will also
be reduced!
■Set the 'nighttime reduction' function with the following parameters:
30 Exhaust air
3099 Night-time reduction
3099-61 Activation Activate/deactivate night-time reduction
3099-62 Limited max value Exhaust air flow rate in % of the nominal air flow rate
3099-63 Begin reduction Time for nighttime reduction on
3099-64 End reduction Time for nighttime reduction off
3099-65 Nighttime reduction feedback System feedback
4.2 Emergency operation
Notice
Use the 'emergency mode' function to maintain adiabatic cooling in the
event of a fault in the adiabatic pump.
■In the event of a fault in the adiabatic pump, activate the 'emergency mode'
function with the following parameter:
60 Adiabatic
6099 Control
6099-09 Activation Activate/deactivate emergency operation
The unit opens the inlet valve and the outlet valve and sprays water continuously
into the fresh air stream. Water that is not evaporated is collected in the trough
and ows directly to the drain.
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5 Zone control
The Process diagram Zone screen shows the following information and buttons:
1 42 3
■
1
Set points: Entering the set values
■
2
Open Process diagram Zone screen
■
3
Open Data points Zone screen
■
4
Process diagram Zone
Notice
Depending on the local conditions, the display on the screen may di󰀨er
from the display in this manual.
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System control for ServeCool Zone control
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5.1 Set points
The zone control species the setpoint values for several ServeCool units. Dene
the required values for the zone:
– Pressure di󰀨erence between raised oor and server room / cold aisle
– Temperature in the server room /cold aisle
■In each case, click on the icon.
■Enter the desired value.
■Click the icon to save the value.
The actual values are recorded via the sensors distributed in the room and the
system control calculates the maximum value, the average value and the minimum
value in each case. You can choose which of these values should be used for the
zone control.
■In each case, click the icon at 'Selection'.
■Select the value to be used.
■Click on the icon to save the selection.
Attention
As long as you have not yet made a selection, 'Init' is displayed and the
units in the zone are switched o󰀨.
The 'Release' parameter can be used to switch all ServeCool units in the zone on
and o󰀨.
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System control for ServeCool Zone control
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5.2 Process diagram Zone
The zone process diagram shows a zone overview with current measured values
and status displays.
1
4 65 7
2 3
■
1
Status display of the ServeCool units
(On / Off, supply air fan, exhaust air fan, condenser)
■
2
Temperature / humidity of supply air
■
3
Temperature / humidity of extract air
■
4
Temperature / humidity in the server room / cold aisle
■
5
Pressure difference between raised floor and server room / cold aisle
■
6
Average values for temperature / humidity in the server room
■
7
Average value of pressure difference
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System control for ServeCool Zone control
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5.3 Data points Zone
The Zone data points screen displays the operating and control parameters of the
zone control:
■The parameters are thematically grouped:
– Click a group or component to show/hide the associated parameters.
– Depending on the current user level, not all values are displayed.
■Move the mouse pointer over the icon to display the help text for the
respective parameter.
■Editable values are marked with the icon:
– Click on the icon.
– Enter the desired value.
– Click on the icon to save the value or click on the icon to cancel
without saving.
– If the value in the current user level must not be changed, the editing icon is
inactive and greyed out.
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System control for ServeCool Zone control
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6 Faults
The following table contains an overview of all faults and their cause. Contact Hoval
customer service to have faults rectied.
ID Fault Cause System reaction Remedy
Group 00 – Control panel
00-00-04 Power supply system 1 fault Power supply system 1 faulty Units with source switching
switch to system 2. Check power supply.
00-00-05 Power supply system 2 fault Power supply system 2 faulty Units with source switching
switch to system 1.
00-01-00 24 V supply fault 24 V supply faulty
Some units cannot be acti-
vated. Sensors deliver wrong
values.
Check the fuse in the control
panel. If this occurs again, contact
Hoval customer service.
00-01-01 Surge voltage protection fault
Fault in overvoltage protection in the
control panel, occurrence of overvoltage
or varistor service life expired
The unit is no longer protected
against overvoltage.
Check overvoltage protection and
replace if necessary.
00-02-01 External release feedback No external release
(bridge in control panel interrupted)
The unit switches off or
displays only one message
(adjustable).
Check safety chain and release.
Group 10 – Supply air
10-00-06
10-01-06
10-02-06
Fan # / Fault message
The displayed fault is present at supply
air fan no. # (1 |2 |3).
The unit continues to run with
the other supply air fans. Call Hoval customer service.
10-00-09
10-01-09
10-02-09
Fan # / CEC
10-00-11
10-01-11
10-02-11
Fan # / Hall sensor
10-00-12
10-01-12
10-02-12
Fan # / Phase failure
10-00-13
10-01-13
10-02-13
Fan # / Undervoltage intermediate circuit
10-00-14
10-01-14
10-02-14
Fan # /
Overvoltage intermediate circuit
10-00-15
10-01-15
10-02-15
Fan # / Earth fault
10-00-16
10-01-16
10-02-16
Fan # / IGBT error
10-00-21
10-01-21
10-02-21
Fan # / Temperature management
10-00-25
10-01-25
10-02-25
Fan # / Fuse blown
10-00-26
10-01-26
10-02-26
Fan # / Motor blocked
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System control for ServeCool Faults
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ID Fault Cause System reaction Remedy
10-03-01 Combination sensor /
Temperature fault message
Fault in the supply air temperature
measurement –Check combination sensor supply air. Call Hoval customer service.
10-03-03 Combination sensor /
Temperature low fault message
The measured supply air temperature is
lower than the limit value. –Set limit values correctly, check air
conditions.
10-03-05 Combination sensor /
Temperature high fault message
The measured supply air temperature is
higher than the limit value. –
10-03-08 Combination sensor /
Rel. humidity fault message
Fault in the supply air moisture meas-
urement (relative humidity) –Check combination sensor supply air.
10-03-10 Combination sensor /
Rel. humidity low fault message
The measured relative humidity of the
supply air is lower than the limit value. –Set limit values correctly, check air
conditions.
10-03-12 Combination sensor /
Rel. humidity high fault message
The measured relative humidity of the
supply air is higher than the limit value. –
10-03-15 Combination sensor /
Abs. humidity fault message
Fault in the supply air moisture meas-
urement (absolute humidity) –Check combination sensor supply air.
10-03-17 Combination sensor /
Abs. humidity low fault message
The measured absolute humidity of the
supply air is lower than the limit value. –Set limit values correctly, check air
conditions.
10-03-19 Combination sensor /
Abs. humidity high fault message
The measured absolute humidity of the
supply air is higher than the limit value. –
10-04-05 Bypass damper cooling coil / CEC The bypass damper cooling coil does
not behave according to the activation. –Check damper actuator.
10-05-01 Combination sensor E monitoring /
Temperature fault message
Fault in the supply air temperature
measurement after the plate-type heat
exchanger
–Check combination sensor energy
monitoring.
10-05-03 Combination sensor E monitoring /
Temperature low fault message
The measured supply air temperature
after the plate-type heat exchanger is
lower than the limit value.
–
Set limit values correctly, check air
conditions.
10-05-05 Combination sensor E monitoring /
Temperature high fault message
The measured supply air temperature
after the plate-type heat exchanger is
higher than the limit value.
–
10-05-08 Combination sensor E monitoring /
Rel. humidity fault message
Fault in the supply air moisture measure-
ment after the plate-type heat exchanger
(relative humidity)
–Check combination sensor energy
monitoring.
10-05-10 Combination sensor E monitoring /
Rel. humidity low fault message
The measured relative humidity of the
supply air after the plate-type heat
exchanger is lower than the limit value.
–
Set limit values correctly, check air
conditions.
10-05-12 Combination sensor E monitoring /
Rel. humidity high fault message
The measured relative humidity of the
supply air after the plate-type heat
exchanger is higher than the limit value.
–
10-05-15 Combination sensor E monitoring /
Abs. humidity fault message
Fault in the supply air moisture measure-
ment after the plate-type heat exchanger
(absolute humidity)
–Check combination sensor energy
monitoring.
10-05-17 Combination sensor E monitoring /
Abs. humidity low fault message
The measured absolute humidity of
the supply air after the plate-type heat
exchanger is lower than the limit value.
–
Set limit values correctly, check air
conditions.
10-05-19 Combination sensor E monitoring /
Abs. humidity high fault message
The measured absolute humidity of
the supply air after the plate-type heat
exchanger is higher than the limit value.
–
10-06-01 Flow rate / Fault message Fault in the supply air flow rate
measurement –Check sensor and measuring hoses.
Group 20 – Extract air
20-00-01 Combination sensor /
Temperature fault message
Fault in the extract air temperature
measurement –Check combination sensor extract air.
20-00-03 Combination sensor /
Temperature low fault message
The measured extract air temperature is
lower than the limit value. –Set limit values correctly, check air
conditions.
20-00-05 Combination sensor /
Temperature high fault message
The measured extract air temperature is
higher than the limit value. –
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System control for ServeCool Faults
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ID Fault Cause System reaction Remedy
20-00-08 Combination sensor /
Rel. humidity fault message
Fault in the extract air moisture meas-
urement (relative humidity) –Check combination sensor extract air.
20-00-10 Combination sensor /
Rel. humidity low fault message
The measured relative humidity of the
extract air is lower than the limit value. –Set limit values correctly, check air
conditions.
20-00-12 Combination sensor /
Rel. humidity high fault message
The measured relative humidity of the
extract air is higher than the limit value. –
20-00-15 Combination sensor /
Abs. humidity fault message
Fault in the extract air moisture meas-
urement (absolute humidity) –Check combination sensor extract air.
20-00-17 Combination sensor /
Abs. humidity low fault message
The measured absolute humidity of the
extract air is lower than the limit value. –Set limit values correctly, check air
conditions.
20-00-19 Combination sensor /
Abs. humidity high fault message
The measured absolute humidity of the
extract air is higher than the limit value. –
20-01-00 Filter / Filter The extract air filter is soiled. –Change extract air filter.
Check pressure socket.
20-99-03 Temperature limitation / Feedback Extract air temperature limiting is active.
The unit reduces the supply
air setpoint temperature to the
set value.
Reduce extract air temperature.
Group 30 – Exhaust air
30-00-06
30-01-06
30-02-06
Fan # / Fault message
The displayed fault is present at exhaust
air fan no. # (1 |2 |3).
The unit continues to run with
the other exhaust air fans. Call Hoval customer service.
30-00-09
30-01-09
30-02-09
Fan # / CEC
30-00-11
30-01-11
30-02-11
Fan # / Hall sensor
30-00-12
30-01-12
30-02-12
Fan # / Phase failure
30-00-13
30-01-13
30-02-13
Fan # / Undervoltage intermediate circuit
30-00-14
30-01-14
30-02-14
Fan # / Overvoltage intermediate circuit
30-00-15
30-01-15
30-02-15
Fan # / Earth fault
30-00-16
30-01-16
30-02-16
Fan # / IGBT error
30-00-21
30-01-21
30-02-21
Fan # / Temperature management
30-00-25
30-01-25
30-02-25
Fan # / Fuse blown
30-00-26
30-01-26
30-02-26
Fan # / Motor blocked
30-03-04 CPS damper / Fault message Fault in the CPS damper for exhaust air
(Condensation Prevention System) –
Check damper actuator.
30-03-07 CPS damper / CEC
The CPS damper for exhaust air
(Condensation Prevention System) does
not behave according to the activation.
–
30-04-01 Flow rate / Fault message Fault in the exhaust air flow rate
measurement –Check sensor and measuring hoses.
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System control for ServeCool Faults
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ID Fault Cause System reaction Remedy
Group 40 – Fresh air
40-00-01 Combination sensor /
Temperature fault message
Fault in the fresh air temperature
measurement
CPS operation (Condensation
Prevention System) no longer
possible.
Check combination sensor fresh
air.
40-00-03 Combination sensor /
Temperature low fault message
The measured fresh air temperature is
lower than the limit value. –Set limit values correctly, check air
conditions.
40-00-05 Combination sensor /
Temperature high fault message
The measured fresh air temperature is
higher than the limit value. –
40-00-08 Combination sensor /
Rel. humidity fault message
Fault in the fresh air moisture measure-
ment (relative humidity) –Check combination sensor fresh air.
40-00-10 Combination sensor /
Rel. humidity low fault message
The measured relative humidity of the
fresh air is lower than the limit value. –Set limit values correctly, check air
conditions.
40-00-12 Combination sensor /
Rel. humidity high fault message
The measured relative humidity of the
fresh air is higher than the limit value. –
40-00-15 Combination sensor /
Abs. humidity fault message
Fault in the fresh air moisture measure-
ment (absolute humidity) –Check combination sensor fresh air.
40-00-17 Combination sensor /
Abs. humidity low fault message
The measured absolute humidity of the
fresh air is lower than the limit value. –Set limit values correctly, check air
conditions.
40-00-19 Combination sensor /
Abs. humidity high fault message
The measured absolute humidity of the
fresh air is higher than the limit value. –
40-01-00 Filter / Filter The fresh air filter is soiled. –Change the fresh air filter.
Check pressure socket.
40-02-04 CPS damper / Fault message Fault in the CPS damper for fresh air
(Condensation Prevention System) –
Check damper actuator.
40-02-07 CPS damper / CEC
The CPS damper (Condensation
Prevention System) does not behave
according to the activation.
–
Group 50 – Chilled water
50-00-04 Chilled water valve / Fault message Fault in the cold water valve The unit switches to adiabatic
cooling, if possible. Check valve actuator.
50-00-07 Chilled water valve / CEC The cold water valve does not behave
according to the activation.
50-01-03 Condenser / Fault message Fault in the condenser The unit switches to adiabatic
cooling, if possible. Check condenser.
Group 60 – Adiabatic
60-00-05 Feed valve / CEC The inlet valve does not behave
according to the activation.
The unit blocks adiabatic
cooling. Check feed valve.
60-01-05 Drain valve / CEC The outlet valve does not behave
according to the activation.
The unit blocks adiabatic
cooling. Check drain valve.
60-02-02 Pump / Fault message Fault in the adiabatic pump The unit blocks adiabatic
cooling.
Check the motor protection switch
in the control panel
60-05-01 Combination sensor /
Conductivity fault message Fault in the conductivity measurement The unit blocks adiabatic cooling.
Check combination sensor
conductivity measurement.
60-05-03 Combination sensor /
Conductivity low fault message
The measured conductivity is lower than
the limit value. –Set limit values correctly, check
water conditions.
60-05-05 Combination sensor /
Conductivity high fault message
The measured conductivity is higher
than the limit value. –
60-05-07 Combination sensor /
Temperature fault message
Fault in the temperature measurement of
the circulating water
The unit blocks adiabatic
cooling.
Check combination sensor
conductivity measurement.
60-05-09 Combination sensor /
Temperature low fault message
The measured temperature is lower than
the limit value. –Set limit values correctly, check
water conditions.
60-05-11 Combination sensor /
Temperature high fault message
The measured temperature is higher
than the limit value. –
60-05-12 Sensor fault message Fault in the conductivity sensor The unit blocks adiabatic
cooling.
Check combination sensor
conductivity measurement.
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