nilan Compact S Polar User manual

INSTALLATION INSTRUCTIONS
CTS602 HMI BY NILAN
Compact S Polar (English)
Version 3.00 - 29.04.2019

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 Compact S Polar............................................................................................................................................................................................... 9
Accessories................................................................................................................................................................................................................................................................................10
Electrical after-heating element........................................................................................................................................................................................................... 10
Pollen filter.....................................................................................................................................................................................................................................................................10
CO2 sensor..................................................................................................................................................................................................................................................................... 10
Expansion PCB............................................................................................................................................................................................................................................................ 10
EM-box................................................................................................................................................................................................................................................................................ 10
Safety group.................................................................................................................................................................................................................................................................11
Safety features ........................................................................................................................................................................................................................................................11
Flexible sound damper...................................................................................................................................................................................................................................... 11
Trolley................................................................................................................................................................................................................................................................................. 11
Set up
Installation..................................................................................................................................................................................................................................................................................12
Transport into the dwelling......................................................................................................................................................................................................................... 12
Disassembling the exchanger box........................................................................................................................................................................................................12
Positioning the unit...............................................................................................................................................................................................................................................14
Electric installation
Safety.................................................................................................................................................................................................................................................................................. 15
Connections overview.......................................................................................................................................................................................................................................15
Control panel............................................................................................................................................................................................................................................................................16
Connection of CTS602 HMI control panel.................................................................................................................................................................................... 16
Electrical connection of the unit.........................................................................................................................................................................................................................17
Power supply................................................................................................................................................................................................................................................................17
Compact S Polar....................................................................................................................................................................................................................................................... 17
Electrical pre-heating element ...............................................................................................................................................................................................................18
Electrical connection accessories.................................................................................................................................................................................................................... 20
Connection to user selection and modbus.................................................................................................................................................................................. 20
Electrical after-heating element...........................................................................................................................................................................................................21
CO2 sensor..................................................................................................................................................................................................................................................................... 22
Connecting expansion PCB...........................................................................................................................................................................................................................24
Fire connection..........................................................................................................................................................................................................................................................25
Joint alarm....................................................................................................................................................................................................................................................................... 26
External heat supply............................................................................................................................................................................................................................................27
Plumbing installation
Condensate drain................................................................................................................................................................................................................................................................28
Important information...................................................................................................................................................................................................................................... 28
Hot water tank....................................................................................................................................................................................................................................................................... 29
Connections overview.......................................................................................................................................................................................................................................29
Connection .................................................................................................................................................................................................................................................................... 29
Hot water circulation..........................................................................................................................................................................................................................................30
2

Solar coil............................................................................................................................................................................................................................................................................30
Softened water......................................................................................................................................................................................................................................................... 30
Plumbing connections for accessories........................................................................................................................................................................................................31
Safety group.................................................................................................................................................................................................................................................................31
Safety group with anti-scald protection.......................................................................................................................................................................................32
Ventilation installation
Duct system.............................................................................................................................................................................................................................................................................. 33
Legislation...................................................................................................................................................................................................................................................................... 33
Ducts..................................................................................................................................................................................................................................................................................... 33
Unit..........................................................................................................................................................................................................................................................................................33
Extract air........................................................................................................................................................................................................................................................................34
Supply air......................................................................................................................................................................................................................................................................... 34
Roof stacks.................................................................................................................................................................................................................................................................... 34
Installation example.............................................................................................................................................................................................................................................35
Regulation...................................................................................................................................................................................................................................................................................35
Important information...................................................................................................................................................................................................................................... 35
Troubleshooting
Emergency operation.....................................................................................................................................................................................................................................................36
Emergency operation domestic hot water.................................................................................................................................................................................36
Domestic hot water.......................................................................................................................................................................................................................................................... 37
Errors and solutions domestic hot water.....................................................................................................................................................................................37
Compact S Polar (English) BY NILAN
3

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.
4

General inform ation
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.
Com pact S Polar (English) B Y N IL A N
5

Unit type
Product description
Compact S is a ventilation unit with heat recovery which also produces domestic hot water.
Compact S is designed for air flows of up to 375 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 is heated up in the heat exchanger (heat recovery) by warm extract air.
In addition to a (counterflow) heat exchanger, Compact S has an integral heat pump. The heat pump
uses the heat remaining in the extracted air following heat recovery in the heat exchanger to produce
hot water. In case of high hot water consumption, there is a 1.5 kW electric supplement heater in the
hot water tank, which can also be used to heat the water.
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. Compact S 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. Compact S is able both to
provide cooling and produce domestic hot water, so it could be said that the cooling of the supply air is
"free of charge".
6

The unit
1
2
16
17
15
14
6
4
7
8
5
9
18
12
113 10
13
1 20
19
Compact S:
1. Duct connections
2. Additional duct connections (the spouts can be moved individually from the top to the side of the
unit)
3. Door to filter change (loosen the two thumb screws to dismount the door)
4. Extract air filter
5. Outdoor air filter (pollen filter placed here if required)
6. Counterflow heat exchanger
7. Heat pump
8. Automation
9. Fans
10. Bypass damper
11. Pre-heating element (Polar version only)
12. 180 L hot water tank
13. 1.5 kW electrical supplemental heater (with overheating protection; must be pushed by outages)
14. Condensate drain with water trap
15. Solar panel coil (SOL version only)
16. Electronically monitored sacrificial anode
17. Plumbing connections
18. Emergency operation
19. Control panel
20. 8-pole plug
Compact S Polar (English) BY NILAN
7

Temperature sensor overview
T 15
T 10
RH
T 4
T 2/T7
T 6
T 5
T 12
T 11
T 1
Tem perature sensor inside the
unit
Tem perature sensors outside
th e u n it
Tem perature sensors int the hot
water tank
T1: Outdoor air (before pre-
heating element)
T2: Supply air
T4: Extract air after counterflow
heat exchanger
T5: Condenser
T6: Evaporator
T10: Extract air
RH: Humidity sensor
T7: Supply air after electrical
after-heating element
(accessory) When installing a
heating element, T2 changes its
name to T7
T8: Outdoor air before pre-
heating element (accessory)
T9: On after-heating element
(accessory)
T11: Top of tank
T12: Bottom of tank
8

Dimensional drawing Compact S Polar
600
2250
100
120
131
4 9
173
318
100
120
600
318
2250
2250
2250
Connections:
1. Outdoor air
2. Supply air
3. Extract air
4. Discharge air
Weight: 162 kg.
112
1 0 1
112
420
Ø 1 6 0
Com pact S Polar (English) B Y N IL A N
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Accessories
Electrical after-heating element
With an electrical after-heating element you can increase the supply air
temperature to the desired level. Electrical after-heating elements are supplied
for mounting in the supply air duct. Included are the necessary sensors.
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.
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.
Expansion PCB
With an expansion PCB, the features of the CTS 602 control expand option to use
user select 2.
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.
10

Safety group
The safety group consists of:
The safety group, which is made of brass, consists of a stop valve with an integral
non-return valve, a safety valve and drain cock. It can be installed directly
beneath the hot water tank.
Safety features
During periods with cooling ventilation, hot water in the tank can reach very high
temperatures - up to 80 ºC.
A maximum temperature of up to 60 ºC can be set in the control system to
prevent scalding, but active cooling is then limited.
To make full use of the cooling function, scalding protection should be fitted that
mixes hot water with cold to bring the temperature down.
If a solar panel is used to supplement hot water heating, scalding protection must
be fitted.
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.
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.
Compact S Polar (English) BY NILAN
11

Set up
Installation
Transport into the dwelling
Compact S is supplied in one piece on a pallet, packed in cardboard.
Nilan also offers a lifting trolley, with which the unit can be lifted directly off the pallet and into the
building. If the unit is too high to get through the opening in the house, it is possible to disassemble the
heat exchanger box so that you do not have to lay down the unit.
Disassembling the exchanger box
It may be necessary to disassemble the exchanger box when servicing fans and other components. It
can also facilitate transport if the unit is to pass through a door.
1. Remove the 8-pole plug located at the top of the unit
and push it down into the hole.
2. Demount the front panels.
a: loosen the thumb screws and remove the filter door.
b: lift up the large door and remove it. Detach the RJ plug
from the control panel on the rear side of the large door.
3. Remove the screws and demount the cover plate. 4. Pull out the T4 sensor from the counterflow heat
exchanger.
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5. Pull out the counterflow heat exchanger from the unit. 6. Sensor and humidity sensor are pulled down through
the tulle in the shelf on the left side of the unit.
ATTENTION! On Compact S there is also a T1 sensor
together with the USB plug in the shelf on the right side,
which must also be pulled down through the tulle.
See the next point on how to remove the USB connector.
Filters can be pulled out to make room.
7. The plug of the USB cord is pulled out of the board,
after which it can be pulled through the tulle.
8. Unscrew the 4 wires from the terminals for the bypass
motor.
9. The bypass box is pulled out.
Then push the 8-pole plug into the duct for the fan part.
10. Remove the 6 pcs. screws on the bottom.
11. The top is lifted by the lower part.
Compact S Polar (English) BY NILAN
13

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 changed when
necessary.
You must also be able to remove the heat exchanger for
servicing and to replace fans and other components. It is
therefore recommended that you leave a minimum of 60 cm of
clear space in front of the unit.
Min. 60 cm
When replacing or servicing certain components, such as fans,
you will need to remove the top of the unit.
In order to make the top of the unit easily removable, flexible
connectors should be fitted between the unit and the ducts.
If flashings are fitted above the unit, these must be easily
removable.
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.
14

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
Connection of 230V is located behind the unit's large door, the cable can be routed to the back of the
unit at the bottom. The connection to the control system via USB cable is situated behind the filter door
at the front of the unit. An 8-pole plug is found on top of the unit.
1
2
3
1. Connection of 230V plug (remember electrical grounding), and connection of pre-heating element.
2. Connection of PC via a USB cable.
3. 8-pole plug with a T1 sensor in addition to options for user selection 1 and modbus/ control panel.
Com pact S Polar (English) B Y N IL A N
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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 to the front of the unit.
At the factory the control panel has been mounted on the largedoor
16

Electrical connection of the unit
Power supply
CAUTION
The power supply, including a safety switch, must be installed by an authorized electrician.
A power cable for connection to a power socket is included. It is important that the unit is
earthed.
The unit is supplied with an EU plug for a 230V power supply. This means that, in principle, you
have no protection of electrical grounding. You can secure electrical grounding by connecting
the plug to a socket with a ground pin.
You can also connect an adapter for a plug with a ground pin. You can fit this plug adapter on
the unit, so that the unit is secured electrical grounding to the earthing system.
Compact S Polar
Ventilation and domestic hot water
230V 50Hz max. 13A (Schuko plug)
Safety switch
Com pact S Polar (English) B Y N IL A N
17

Electrical pre-heating element
The electrical preheating surface is mounted on top of or on the side of the unit in the outdoor air duct
before the unit with the required temperature sensor.
1. The electric heating surface is located under the unit. 2. Outdoor air spout are removed.
3. The preheating surface is installed at the outdoor air
duct connection on the top (standard) or on the side of
the unit (in which case the cover plate must be moved to
cover the hole in the top).
Be sure to place the heating surface so that the cover for
the automatic opening can be easily opened.
4. The spout is mounted on the heating surface, ready for
duct mounting.
5. The temperature sensor for the preheating surface is
pushed 8 cm into the tulle. Then, inside the unit, it can be
seen hanging just above the outdoor air filter.
6. The T1 sensor is pulled from the 8-pole outlet into the
outdoor air duct (30 cm before the preheating surface).
18

7. The power supply cable is pre-mounted in the unit and
the preheating surface connected with Phase (F), Zero (N)
and Ground (J).
8. The preheating surface can be mounted on the top or
side of the plant, as well as in the duct. The power supply
cable is 2 meters extra for duct mounting.
Compact S Polar (English) BY NILAN
19

Electrical connection 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.
1
2
3
4
5
6
7
8
CTS/Computer
Converter
Modbus
Unit
Unit
T1
T1
8-pole plug
8-pole plug
20