nilan CTS602 HMI User manual

INSTALLATION INSTRUCTIONS
CTS602 HMI BY NILAN
VP18 M2 EK "RS" (English)
Version 3.20 - 11.03.2021

TABLE OF CONTENTS
Safety
Power supply................................................................................................................................................................................................................................................................... 4
Heat pump domestic hot water ................................................................................................................................................................................................................. 4
Disposal............................................................................................................................................................................................................................................................................................. 4
Ventilation unit............................................................................................................................................................................................................................................................. 4
Heatpump .......................................................................................................................................................................................................................................................................... 4
General information
Introduction.................................................................................................................................................................................................................................................................................. 5
General information prior to installation.........................................................................................................................................................................................5
Unit type........................................................................................................................................................................................................................................................................................... 6
Product description..................................................................................................................................................................................................................................................6
The unit.................................................................................................................................................................................................................................................................................. 7
Temperature sensor overview....................................................................................................................................................................................................................8
Dimensional drawing.............................................................................................................................................................................................................................................. 9
Accessories................................................................................................................................................................................................................................................................................10
Electrical pre-heating element for frost protection........................................................................................................................................................10
Pollen filter.....................................................................................................................................................................................................................................................................10
EM-box................................................................................................................................................................................................................................................................................ 10
CO2 sensor..................................................................................................................................................................................................................................................................... 10
Flexible sound damper...................................................................................................................................................................................................................................... 10
Trolley................................................................................................................................................................................................................................................................................. 11
Set up
Installation..................................................................................................................................................................................................................................................................................12
Transport into the building.......................................................................................................................................................................................................................... 12
Positioning the unit............................................................................................................................................................................................................................................... 12
Electric installation
Safety.................................................................................................................................................................................................................................................................................. 13
Connections overview....................................................................................................................................................................................................................................... 13
Control panel............................................................................................................................................................................................................................................................................14
Connection of CTS602 HMI control panel.................................................................................................................................................................................... 14
Electrical connection of the unit.........................................................................................................................................................................................................................14
Electrical connections accessories................................................................................................................................................................................................................. 15
Connection to user selection and modbus.................................................................................................................................................................................. 15
External electrical pre-heating element....................................................................................................................................................................................... 17
CO2 sensor..................................................................................................................................................................................................................................................................... 18
Fire connection.......................................................................................................................................................................................................................................................... 20
Mounting of expansion PCB on CTS602 circuit board....................................................................................................................................................21
External heating control................................................................................................................................................................................................................................. 22
Plumbing installation
Condensate drain................................................................................................................................................................................................................................................................23
Important information...................................................................................................................................................................................................................................... 23
Hot water tank....................................................................................................................................................................................................................................................................... 24
Connections overview.......................................................................................................................................................................................................................................24
Connection "RS"........................................................................................................................................................................................................................................................ 25
Hot water circulation.......................................................................................................................................................................................................................................... 25
Solar coil............................................................................................................................................................................................................................................................................25
Softened water......................................................................................................................................................................................................................................................... 25
Ventilation installation
Duct system.............................................................................................................................................................................................................................................................................. 26
Legislation...................................................................................................................................................................................................................................................................... 26
Ducts..................................................................................................................................................................................................................................................................................... 26
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Unit..........................................................................................................................................................................................................................................................................................26
Extract air........................................................................................................................................................................................................................................................................27
Supply air......................................................................................................................................................................................................................................................................... 27
Roof stacks.................................................................................................................................................................................................................................................................... 27
Balancing...................................................................................................................................................................................................................................................................................... 27
Important information...................................................................................................................................................................................................................................... 27
Troubleshooting
Emergency mode.................................................................................................................................................................................................................................................................28
Emergency mode, domestic hot water........................................................................................................................................................................................... 28
Domestic hot water.......................................................................................................................................................................................................................................................... 29
Errors and solutions, domestic hot water................................................................................................................................................................................... 29
VP18 M2 EK "RS" (English) BY NILAN
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Safety
Power supply
CAUTION
Always disconnect the power supply to the unit if an error occurs that cannot be rectified via
the control panel.
CAUTION
If an error occurs on electrically conductive parts of the unit, always contact an authorised
electrician to rectify the error.
CAUTION
Always disconnect the power supply to the unit before opening the unit doors, for instance for
installation, inspection, cleaning and filter change.
Heat pump domestic hot water
CAUTION
Avoid direct contact with the heating system pipes in the heat pump as they can get very hot.
CAUTION
To protect the heat pump against damage, it is fitted with the following safety equipment:
• Electronic temperature monitoring
The heat pump must undergo suitable service inspections under applicable legislation and regulations
to keep it in good condition and in compliance with safety and environmental requirements.
Responsibility for maintenance of the heat pump rests with the owner/user.
Disposal
Ventilation unit
Nilan’s units consist mainly of recyclable materials. They must, therefore, not be
mixed with household waste, but must be delivered to your local recycling center
for disposal.
Heatpump
Concerning disposal of units with heat pumps, it is important to contact the local
authorities for information about correct handling of these. The heatpump
contains the refrigerant R134a, which is harmful to the environment if not
handled correctly.
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General information
Introduction
General information prior to installation
The following documents are supplied with the unit:
• Installation instructions
• Software instructions
• User manual
• Wiring diagram
Instructions can be downloaded from Nilan’s website: https://www.nilan.dk/en-gb/frontpage/
download
If you have questions regarding installation of the unit after having read the instructions, contact your
nearest dealer of Nilan products. You can find Nilan dealers on www.nilan.dk/en-gb/frontpage/
download/dealers.
The purpose of these instructions is to advice the installer on correct installation and maintenance of
the unit.
ATTENTION
The unit must be started up immediately after installation and connection to the duct system.
When a ventilation unit is not in operation, humidity from the rooms may penetrate into the
ducts and create condensation. Condensate water may leak out of the valves and damage
furniture and floors. Condensation may also form inside the unit, which can damage its
electronics and fans.
The unit is delivered fully tested and ready for operation.
VP18 M2 EK "RS" (English) BY NILAN
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Unit type
Product description
VP18 is a ventilation unit with active heat recovery that also produces domestic hot water.
VP18 is intended for air volumes of up to 425 m3/h at 100 Pa external counter-pressure.
The ventilation draws humid and vitiated air out of the dwelling via bathroom, lavatory, kitchen and
utility room. It introduces fresh air into living areas such as living room, bedrooms and study. Cold
outdoor air gets heated via the heat pump by warm extract air.
The integral heat pump utilises energy in the extract air to produce domestic hot water. The hot water
tank has been fitted with a 1.5 kW supplementary electric heater that will help heat up domestic water
when hot water consumption is high.
In the winter, the heat pump can be used to heat the supply air during periods in which no domestic hot
water is being produced. The supply air can be heated up to 34 °C.
As the heat pump is reversible, in the summer it can be used for cooling supply air. VP18 can cool
supply air by up to 10 °C. However, it does not function as an air condition unit as it operates with
relatively low air exchange. Cooling the supply air removes humidity from the indoor climate. This
provides comfort for users of the dwelling, even at high indoor temperatures. VP18 can cool and
produce domestic hot water simultaneously. Cooling of supply air is therefore essentially "free of
charge".
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The unit
1. Duct connections
2. Filter replacement door
3. Outdoor air filter (if purchased as an accessory, a pollen filter should be fitted here)
4. Extract air filter
5. Exhaust fan
6. Supply air fan
7. Heat pump
8. Automation
9. 180 L hot water tank
10. 1.5 kW supplementary electric heater (with overheat protection that must be reset after outages)
11. Condensate drain with water trap
12. Solar coil (SOL version only)
13. Plumbing connections
14. Emergency mode
15. Control panel
16. 8-pole plug
VP18 M2 EK "RS" (English) BY NILAN
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Temperature sensor overview
T11
T10
T2 T1T5
T6
RH
T12
T14
T1
T2
T10
Temperature sensor in the unit Temperature sensor in the hot water tank
T1: Outdoor air (install in the outdoor air duct)
T2: Supply air
T5: Condenser
T6: Evaporator
T10: Extract air
RH: Humidity sensor
T11: Top of tank
T12: Bottom of tank
T14: Supply flow
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Dimensional drawing
2128
600
600
551
49
175
161 161
233
Ø160
95
136 120
Connections:
1. Outdoor air
2. Supply air
3. Extract air
4. Discharge air
Weight: 154 kg.
VP18 M2 EK "RS" (English) BY NILAN
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Accessories
Electrical pre-heating element for frost protection
In longer periods of sub-zero temperatures, the high-efficiency counterflow heat
exchanger will ice up. To avoid icing, it is recommended that an electrical
preheating element is mounted.
The pre-heating element uses very little energy, but it ensures efficient heat
recovery without de-icing. You therefore achieve an overall reduction of energy
consumption.
Pollen filter
As a standard, the unit is supplied with a plate filter.
If anyone in the household suffers from a pollen allergy, you can install a pollen
filter in the outdoor air intake to minimize the proportion of pollen in the indoor
air.
A pollen filter also removes approx. 50 % of harmful particles in outdoor air, so a
pollen filter is recommended if you live in a large city or close to a motorway.
EM-box
With an EM box it is possible to divide the extract air between the kitchen and the
bathroom.
If a cooker hood is connected to the unit and is switched on, extract air from the
bathroom will be reduced slightly to allow sufficient air for the cooker hood to
extract kitchen fumes.
The EM-box has a fitted metal filter that clears the air in the cooker hood of
grease particles effectively, and thereby protects the unit.
CO2sensor
Fitting a CO2sensor means the ventilation speed can be pre-programmed to run
higher ventilation levels in the event of high CO2level in the extracted air. CO2
levels can be programmed.
Flexible sound damper
To make it easy to service the unit in the future, we recommend that you fit a
flexible connection between the unit and the duct system.
Nilan's flexible sound damper absorbs sounds effectively from both the duct
system and from roof stacks.
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Trolley
A trolley makes it possible to lift the unit of the pallet without physical strain.
The same trolley can be moved to wheel the unit around.
VP18 M2 EK "RS" (English) BY NILAN
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Set up
Installation
Transport into the building
VP18 is delivered assembled and packed in cardboard on a pallet.
Four lifting straps have been fitted from the factory; one in each top corner. This makes it possible to
lift the unit in with a crane. When lifting the unit using the supplied straps, these must be at an angle of
max. 45° from vertical.
Nilan can provide a lift with which the unit can be hoisted from the pallet and driven directly into the
building.
Positioning the unit
ATTENTION
When positioning the unit, you should always consider future services and maintenance.
Filters must be easily accessible so they can be replaced when
necessary.
You must be able to access and replace fans or other
components. It is therefore recommended that you leave a
minimum of 60 cm of clear space in front of the unit.
If flashings are mounted above the VP18, these must be easily
detachable.
Min. 60 cm
ATTENTION
It is important that the unit is level to ensure proper drainage from the condensate tray.
ATTENTION
The unit produces little noise and only weak vibrations, but you should still take into account
potential vibrations that can spread from the unit to individual building components. In order to
separate the unit from its foundation, it is therefore recommended that you install vibration
absorbers under the unit. There should be approx. 10 mm distance to other building
components and to permanent fixtures.
ATTENTION
To minimise noise, it is recommended that the unit is positioned with its rear side against an
outer wall.
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Electric installation
Safety
ATTENTION
All work must be carried out by qualified persons and in compliance with existing legislation and
regulations.
ATTENTION
It is important that the power is off, if you do work to the electrical components of the unit.
It is important to check that wires are not damaged or squeezed during connection and use.
Connections overview
All electrical connections are located on top of the unit.
1. Connection of PC or router via USB cable
2. 8-pole plug with options for connecting user selection 1, Modbus and control panel / T1 sensor.
VP18 M2 EK "RS" (English) BY NILAN
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Control panel
Connection of CTS602 HMI control panel
The control panel is connected to the CTS602 circuit board and is installed in the front part of the unit.
Use this if you want to move the control panel away from the unit.
At the factory the control panel has been mounted on the large door
8-pole plug located on top of the unit.
Electrical connection of the unit
CAUTION
The power supply, including a safety switch, must be installed by an authorized electrician.
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Ventilation and domestic hot water
Safety switch
Electrical connections accessories
Connection to user selection and modbus
User selection: Connection to the user selection can be used, for instance, to control operation of a
cooker hood. This happens via a potential free contact in the cooker hood that sends a signal to the
unit. The unit then increases ventilation when the cooker hood is on. Connection happens in pin 4 and 5
of the 8-pole plug.
User selection can also be used for other functions such as for creating imbalance in supply air and
extract air ventilation.
Modbus: You can communicate with the unit via modbus, which can be connected in pin 1 (GND), pin 6
(A1) and pin 7 (B1) of the 8-pole plug.
Please consult the user manual for software settings etc.
Connect the plug to the unit in point 3: Connections overview.
VP18 M2 EK "RS" (English) BY NILAN
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1
2
3
4
5
6
7
8
CTS/Computer
Converter
Modbus
Unit
Unit
Panel
Panel
8-pole plug
8-pole plug
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External electrical pre-heating element
If your unit is not the Polar version with an integrated pre-heating element, you can purchase and
retrofit an external electrical pre-heating element.
Install the electrical pre-heating element together with the required temperature sensor in the
outdoor air duct before the unit.
1x230V ~ 50 Hz max. 16A
7 8
Min. 32 cm
T
In order to achieve effective regulation, it is important that the temperature sensor is placed at least
32 cm from the pre-heating element.
The pre-heating element has a three-step safety system that prevents overheating.
1. An operating thermostat regulates the heating and ensures that the supply air temperature does
not fall below -1 °C
2. There is a max. thermostat, which shuts down the preheating element if the temperature rises
above 50 °C (For vertical mounting with airflow downwards, the preheating surface will switch off
at 70 ° C).
3. A safety thermostat switches off the pre-heating element if the temperature exceeds 100 °C.
Then, you must reset it manually.
Minimum air volume at Ø160. 110 m3/h
ATTENTION
The heating element must be insulated with a fire retardant insulation material. The cover of
the connection box, however, must not be insulated.
Dimensional drawing:
Ø160
270
370
50 50
50
Positioning options:
VP18 M2 EK "RS" (English) BY NILAN
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CO2 sensor
You can purchase a CO2 sensor as an accessory if you want to control the fan speed level in accordance
with the CO2 level in the dwelling.
CAUTION
Always disconnect the power supply to the unit before opening its doors or working on its
electrical installations.
Connecting the CO2 sensor in the unit:
1. Pull out the upper front panel at the top, lift up and
detach it.
2. Loosen the thumb screws and remove the filter door.
Remove the screw in the middle so you can detach the
lower door.
Remove the screws and detach the cover plate.
3. Mount the CO2 sensor in the metal shelf under the
extract air filter using the self-drilling screws (supplied
with the CO2 sensor kit).
4. Run the wire from the CO2 sensor through the cable
grommet to the automation.
Install the power supply box in the automation
compartment in the unit (predrill holes for the two screws
supplied).
5. Connect it up in accordance with the wiring diagram.
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Run the wire from the CO2sensor to the circuit board and connect it as shown below:
Pre-fuse
Resistor
For software version 2.00x and below, the resistor must be connected in series with
a black signal wire.
For software version 2.01x and above, NO resistor should be installed.
VP18 M2 EK "RS" (English) BY NILAN
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Fire connection
You can connect a fire thermostat or an external fire automation system. It must be a closed signal, so
that the unit will register that there is a fire if the signal is interrupted.
CTS602Fire thermostat
Shunt if not installed
NB! If you connect the unit to an external fire automation system, set the software: Service settings/
Restart/Fire. The unit will then start up again when the external fire automation system signals for it to
do so.
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