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Alarm list

VPL unit

Alarm list

The list below relates to Comfort units, and the events are divided into the following categories:

Warning

Operation continues, but something no longer functions optimally.

Critical

Operation has stopped partially or completely as a serious error requires

immediate attention.

ID

Type

Display text

Description / cause

Rectification of error

01

Hardware error

Error in the hardware of the control
system.

If resetting does not help, contact
service.

02

Alarm timeout

A warning alarm has become a critical
alarm.

Register alarm and reset.
If the alarm persists, contact service.

03

Fire alarm activated

The unit has stopped because the fire
thermostat has been activated.

If there has been no fire, contact service.

04

Pressure switch

The high-pressure switch in the
refrigeration circuit has been triggered,
possibly due to:
• Extremely warm outdoor air supply
• Clogged filter
• Defective fan

Check for faults and reset the alarm
Contact service if you cannot reset the
alarm or if alarms often occur.

06

Error in de-icing the

heat pump

The de-icing time has been exceeded.
The exchanger or the heat pump has
failed to de-ice within the maximum
time.
This may be due to the unit being
exposed to very low outdoor
temperatures.

Contact service if resetting the alarm
does not help.
Register the current operating
temperatures from the “Show data”
menu in order to ease the service
process.

8

Frost thermostat

triggered

Temperature sensors:
Only on units with a T9 sensor: Frost
thermostat in water heating element
triggered.

Check for adequate insulation around
the water heating element and its
connections.
Reset alarm.

7

Frost in after-heating

element

Temperature sensors:
Units without a T9 sensor: Frost
thermostat in water heating element
triggered.
Units with a T9 sensor: Water heating
element could not reach 20°C within 6
min.

Check for adequate insulation around
the water heating element and its
connections.
Reset alarm.

10

Over temperature

Electrical after-heating

The electrical heating element has
overheated.
A lack of airflow may be due to clogged
filters, a blocked air intake or a defective
supply air fan.

Check that air flows into the dwelling.
Check filters and the air intake.
Reset alarm.
If the above does not resolve the issue,
contact service.

11

Low flow over

the electrical heating

element

Lack of airflow in the supply air.
See alarm code 10.

See alarm code 10.

VPL28 (English)

 BY NILAN

35

Summary of Contents for CTS602 HMI

Page 1: ...SOFTWARE INSTRUCTIONS CTS602 HMI BY NILAN VPL28 English Version 3 10 12 08 2019 ...

Page 2: ...11 Show data 12 Date Time 12 Week program 13 After heating 14 Cooling 15 Night cooling 15 Air humidity 16 CO2 17 Air exchange 18 Air filter 19 Temp control 20 Language 20 Service settings 21 Password 21 User selection 1 21 User selection 2 23 After heating 25 Air quality 25 Air exchange 26 De icing 27 Temperature control 28 Supply air control 29 Room temperature control 29 Restart 30 Restore setti...

Page 3: ...w outdoor temperatures yes no Level At C Do you want low flow ventilation at low air humidity yes no Level Level low air humidity Do you want high flow ventilation at high air humidity yes no Level Set maximum time for high air humidity Min What is the desired room temperature C Should ventilation cease at low room temperatures yes no C Is a cooker hood connected to the ventilation system yes no L...

Page 4: ... Shows the current discharge air temperature 7 Shows the menu icons listed below 8 Shows the mode icons listed below 9 Access to the settings menu which contains more settings options Menu icons Mode icons Stop icon Indicates that the unit has stopped Compressor icon Indicates that the compressor is active User selection icon Indicates that the user selection function is active Heating icon Indica...

Page 5: ...be displayed The desired room temperature can be adjusted by pressing the up or down arrows followed by the cancel icon bottom left or the accept icon bottom right If you select the option of current fan speed level the desired fan speed level will be displayed The desired fan speed level can be adjusted by pressing the up or down arrows followed by the cancel icon bottom left or the accept icon b...

Page 6: ... press the symbol a description of the warning or the alarm will be displayed The warning or the alarm can be reset by pressing Clear Alarm A warning indicates that something requires attention for instance that filters need changing The unit operates normally An alarm indicates a serious fault with the unit that is likely to require investigation by an expert The unit has stopped 6 ...

Page 7: ...Settings menu overview The settings menu is constructed to make it easy to navigate through VPL28 English BY NILAN 7 ...

Page 8: ... to access the Service Menu You can set the password by using the up or down arrows followed by the confirm icon bottom right The service settings require a password because certain knowledge is necessary in order to change these settings An incorrect setting may result in the unit not working properly 8 ...

Page 9: ... it is important to be able to follow the history The time is shown under Date Time in the display Date Time Year Description Select Year in the panel and then select the correct year Month Description Select Month in the panel and then select the correct month Day Description Select Day in the panel and then select the correct day Hour Description Select Hour in the panel and then select the corr...

Page 10: ...ed The unit must be started by the installer The installer is also able to turn off the entire unit for instance during a service check Operating function You can program the unit to operate in Auto Heating or Cooling mode ATTENTION The Heating and Cooling functions overrule the week program If a week program has been set up the mode will automatically change to Auto at the next change in the week...

Page 11: ...escription When selecting this a list will appear showing the alarm ID number information about the type of alarm and whether it is critical or not See the alarm list for more information You can approve the alarm by selecting Clear Alarm ATTENTION When an alarm is active it cannot be reset in the panel When the alarm has been resolved it will figure as inactive and it can be reset by selecting Cl...

Page 12: ...escription Shows the level at which the supply air fan is operating Extract air fan Description Shows the level at which the extract air fan is operating Unit information Description Press Unit information for more information Unit type Description Shows the name of the product the software has been set to work with Software version Description Shows the installed software version Panel software D...

Page 13: ...et the desired room temperature here Function 2 Under each function you can set time temperature and fan speed level Start time Settings Standard setting Description Hours and minutes 8 00 Set the time for the program to start The program will run until the next change in the week program Ventilation Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 1 Select the desir...

Page 14: ...e program will run until the next change in the week program Reset program Description You can reset the program by selecting the approve icon After heating This menu is only displayed if an after heating element has been installed ATTENTION An after heating element is not standard but it can be purchased as an accessory If you wish to control the supply air temperature an after heating element mu...

Page 15: ...de This happens already at bypass cooling Night cooling The menu Night cooling allows to select passive cooling at night provided the outdoor temperature the day before has been above the set day temperature limit for at least one hour I Night cooling the period suspend the compressor cooling operation and the room setpoint is lowered to the temperature set in the night cooling menu The set limit ...

Page 16: ... is reduced and the bathroom mirror will rarely steam up The humidity control system follows the average air humidity level measured over the previous 24 hours In this way the system automatically adapts to summer and winter conditions Air humidity Vent low humidity Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 1 At low humidity the unit changes to the set fan spe...

Page 17: ... use varies greatly during the day and during the week CO2 Vent high CO2 level Settings Standard setting Description Level 2 Level 3 Level 4 Off Level 3 Here you indicate the fan speed level at which the unit is to operate at high CO2 level High CO2 level Settings Standard setting Description 650 2500 ppm 800 ppm Here you indicate the CO2 level at which the unit is to switch to high fan speed leve...

Page 18: ...gy Energy Here an energy optimized operation is ensured by regulating the supply air in relation to the set temperature curve Comfort Here the air change is always balanced The ventilation level on the supply air and extract air is always the same Low temperature curve Settings Standard setting Description 15 46 C 38 C When curve controlled the supply air will be temperate at a time as a ventilati...

Page 19: ...nt to add pressure controlled filter change pressure sensors can be connected via digital input and adjustment in the filter menu Air filter Filter alarm Settings Standard setting Description Filter guard 30 90 180 360 70 Guard 70 days 90 days The number of days between filter changes can be set as required For optimal operation it is important that filters are clean A blocked exchanger will incre...

Page 20: ... 16 C Here you set the minimum supply air temperature that the unit should provide in the winter Only effective with an after heating element Max supply air summer Settings Standard setting Description 16 25 C 22 C Here the supply air temperature is set the unit as maximum must be able to blow in with when heat is needed Max supply air winter Settings Standard setting Description 22 50 C 25 C Here...

Page 21: ...an speed level Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 4 Select the desired fan speed level Room temperature Settings Standard setting Description 5 30 C 23 C Set the desired room temperature Supply air Description If you select supply air Duration Settings Standard setting Description Off 15 480 minutes Off Time runs with 15 minute intervals Select for how ...

Page 22: ...utes Off Time runs with 15 minute intervals Select for how long the program is to continue after the external signal has ceased Fan speed level Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 4 Select the desired fan speed level 22 ...

Page 23: ... level Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 4 Select the desired fan speed level Room temperature Settings Standard setting Description 5 30 C 23 C Set the desired room temperature Supply air Description If you select supply air Duration Settings Standard setting Description Off 15 480 minutes Off Time runs with 15 minute intervals Select for how long the...

Page 24: ...tion If you select cooker hood Duration Settings Standard setting Description Off 15 480 minutes Off Time runs with 15 minute intervals Select for how long the program is to continue after the external signal has ceased Fan speed level Settings Standard setting Description Level 1 Level 2 Level 3 Level 4 Off Level 4 Select the desired fan speed level 24 ...

Page 25: ... setting Description Electrical after heating Water heating Off Off Here you indicate whether an after heating element has been installed and if so what type Activate delay Settings Standard setting Description 0 60 minutes 0 minutes This shows the amount of minutes before the after heating element is released once heating is required Heating output Settings Standard setting Description 0 5 10V 0 ...

Page 26: ...Description 20 100 50 Fan speed level 2 is typically used for basic ventilation Level 3 Supply air Settings Standard setting Description 20 100 75 Fan speed level 3 is typically used for the Humidity high function and Guest level Level 4 Supply air Settings Standard setting Description 20 100 100 Fan speed level 4 is typically used for Cooker hood operation and Party level Level 1 Extract air Sett...

Page 27: ...ring de icing T6 start de icing Settings Standard setting Description 10 0 ºC 2 ºC Indicates at which evaporator temperature T6 the heat pump is to de ice T6 stop de icing Settings Standard setting Description 2 12 C 6 C Indicates at which evaporator temperature T6 de icing of the heat pump is to cease T6 min de icing Settings Standard setting Description 10 120 sec 30 sec Indicates the maximum ti...

Page 28: ...ation unit from cooling the dwelling even further you can set it to stop at a minimum room temperature Service Temp Control Room sensor Settings Standard setting Description Extra Suply air Extra Here it is possible to specify which sensor should be the controlling sensor Select heat source Settings Standard setting Description Off HP HP after heating HP heat pump You can disconnect the heat pump ...

Page 29: ...tandard setting Auto Normal Fast Very fast Auto Restart time Settings Standard setting Description 0 60 minutes 6 minutes Minimum duration in minutes for which the compressor has to be off before it restarts Room temperature control The menu Room temp control makes it possible to set the regulator for controlling the room temperature ATTENTION The parameters in the menu Room temp control should on...

Page 30: ...uous Fire Off HP LP High pressure alarm Low pressure alarm Restarts automatically Continuous Continuous operation after the second Critical Alarm Fire Automatic acknowledgement when fire input is back to normal Restore settings It is possible to restore factory and Back up settings Service Restore settings Restore settings Settings Standard setting Description Off Factory Back up Restore Off Facto...

Page 31: ...iption Test of supply air Extract air Description Test of extract air Vent comp Description Test of ventilation and compressor Vent heating Description Test of ventilation and heating operation During the test the heating element receives a 50 signal Modbus address Nilan s ventilation units have open Modbus communication and you set the desired Modbus address here The Modbus protocol with all regi...

Page 32: ...ff is selected logging will not occur periodically but only at events and alarms Data logging In order to data log you need the XML file Devicelog xml which is a decoding specification required by the LMT PC program The file can be downloaded from NilanNet under the menu item After Sales Software Enter the file in the Database directory under the current LMT project You can then retrieve the log f...

Page 33: ...You can choose between a red and a green theme for the screen Service Theme Theme Settings Standard setting Description Green Red Green If you select red text and borders will be red VPL28 English BY NILAN 33 ...

Page 34: ...ttings It is possible to adjust the back light and to calibrate the display on the panel Service Screen set Backlight active Settings Standard setting Description 3 100 90 You can set the backlight in active function Backlight off Settings Standard setting Description 0 100 5 You can set the backlight in not active function Calibrate off Settings Standard setting Description Off On Off If you sele...

Page 35: ...the heat pump has failed to de ice within the maximum time This may be due to the unit being exposed to very low outdoor temperatures Contact service if resetting the alarm does not help Register the current operating temperatures from the Show data menu in order to ease the service process 8 Frost thermostat triggered Temperature sensors Only on units with a T9 sensor Frost thermostat in water he...

Page 36: ...er cuts The settings of the weekly clock must be checked and adjusted if necessary Reset alarm 22 Error in air temperature It is impossible to heat the supply air as desired only applicable if you have an after heating element The after heating element and the unit cannot increase the temperature to the desired level Set a lower supply air temperature Reset alarm 27 58 Error on the temperature sen...

Page 37: ...VPL28 English BY NILAN 37 ...

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Page 39: ...VPL28 English BY NILAN 39 ...

Page 40: ...rney Tlf 353 0 87 9798361 maurice nilan ie www nilanireland ie Document no S24_VPL_28_GB Nilan A S disclaims all liability for potential errors and omissions in printed instructions or for loss or damages arising from published materials whether these are due to errors or inexpediency in the publications or they have other causes Without prior notice Nilan A S reserves the right to make changes to...

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