nilan CTS700-TOUCH Compact P GEO User manual

INSTALLATION INSTRUCTIONS
CTS700-TOUCH BY NILAN
Compact P / Compact P Polar - GEO (English)
Version 2.40 - 28.11.2019

TABLE OF CONTENTS
Safety
Power supply................................................................................................................................................................................................................................................................... 5
Heat pump domestic hot water ................................................................................................................................................................................................................. 5
Heat pump for central heating.................................................................................................................................................................................................................... 5
Disposal............................................................................................................................................................................................................................................................................................. 6
Ventilation unit............................................................................................................................................................................................................................................................. 6
Heatpump .......................................................................................................................................................................................................................................................................... 6
General information
Introduction.................................................................................................................................................................................................................................................................................. 7
General information prior to installation.........................................................................................................................................................................................7
Unit type........................................................................................................................................................................................................................................................................................... 7
Product description..................................................................................................................................................................................................................................................7
The unit.................................................................................................................................................................................................................................................................................. 9
Overview of temperature sensors...................................................................................................................................................................................................... 10
Dimensional drawing...........................................................................................................................................................................................................................................11
Pipe diagram.................................................................................................................................................................................................................................................................12
Accessories................................................................................................................................................................................................................................................................................13
Electrical pre-heating element for frost protection........................................................................................................................................................13
Water after-heating element incl. regulation......................................................................................................................................................................... 13
Electrical after-heating element........................................................................................................................................................................................................... 13
Pollen filter.....................................................................................................................................................................................................................................................................13
EM-box................................................................................................................................................................................................................................................................................ 13
CO2 sensor..................................................................................................................................................................................................................................................................... 14
Safety group.................................................................................................................................................................................................................................................................14
Safety features ........................................................................................................................................................................................................................................................14
Flexible sound damper...................................................................................................................................................................................................................................... 14
Trolley................................................................................................................................................................................................................................................................................. 14
SHW hot water tank ............................................................................................................................................................................................................................................ 15
Installation
Installing the unit.................................................................................................................................................................................................................................................................16
Transport into the dwelling ........................................................................................................................................................................................................................ 16
Positioning of unit.................................................................................................................................................................................................................................................. 16
Ground collector circuit................................................................................................................................................................................................................................................17
Examples of the laying...................................................................................................................................................................................................................................... 17
Electrical installation
Safety.................................................................................................................................................................................................................................................................................. 18
Connections overview....................................................................................................................................................................................................................................... 18
User panel....................................................................................................................................................................................................................................................................................19
Touch panel................................................................................................................................................................................................................................................................... 19
Dimensional drawing user panel............................................................................................................................................................................................................ 19
Placement of the Touch panel ................................................................................................................................................................................................................. 20
Mounting the wall bracket ...........................................................................................................................................................................................................................21
Electrical connection of the unit.........................................................................................................................................................................................................................22
Safety.................................................................................................................................................................................................................................................................................. 22
GEO3, GEO6 and GEO9....................................................................................................................................................................................................................................... 22
Change from 400V to 230V.........................................................................................................................................................................................................................23
Electrical connection accessories.................................................................................................................................................................................................................... 24
External electrical preheating element......................................................................................................................................................................................... 24
Electrical after-heating element........................................................................................................................................................................................................... 25
Water after-heating element.................................................................................................................................................................................................................... 26
The CO2 sensor......................................................................................................................................................................................................................................................... 28
Cooker hood and EM box.................................................................................................................................................................................................................................30
SHW hot water tank............................................................................................................................................................................................................................................. 31
2

Other electrical connections.................................................................................................................................................................................................................................. 32
User selection 1........................................................................................................................................................................................................................................................ 32
User selection 2 ....................................................................................................................................................................................................................................................... 33
External room sensor......................................................................................................................................................................................................................................... 34
Fire protection .......................................................................................................................................................................................................................................................... 34
Common alarm........................................................................................................................................................................................................................................................... 35
External heat supply .......................................................................................................................................................................................................................................... 35
External underfloor heating control..................................................................................................................................................................................................36
Smart Grid ......................................................................................................................................................................................................................................................................36
Connecting EHD damper ................................................................................................................................................................................................................................ 37
BAH Geothermal heater .................................................................................................................................................................................................................................38
Passive cooling function..................................................................................................................................................................................................................................39
Plumbing installation
Condensate drain................................................................................................................................................................................................................................................................41
Important information...................................................................................................................................................................................................................................... 41
Domestic hot water tank............................................................................................................................................................................................................................................ 42
Connection overview..........................................................................................................................................................................................................................................42
Connection .................................................................................................................................................................................................................................................................... 42
Hot water circulation.......................................................................................................................................................................................................................................... 43
Supply heat exchanger..................................................................................................................................................................................................................................... 43
Softened water......................................................................................................................................................................................................................................................... 43
Central heating......................................................................................................................................................................................................................................................................44
Water connection list..........................................................................................................................................................................................................................................44
The brine circuit........................................................................................................................................................................................................................................................45
Check list for the central heating system prior to start-up ................................................................................................................................... 46
Plumbing connections for accessories........................................................................................................................................................................................................47
Safety group.................................................................................................................................................................................................................................................................47
Safety group with anti-scald protection.......................................................................................................................................................................................48
Hot water heater (accessory)................................................................................................................................................................................................................... 49
Output chart, hot water heating element ...................................................................................................................................................................................50
Domestic hot water tank................................................................................................................................................................................................................................ 51
Connecting to SHW hot water................................................................................................................................................................................................................... 52
Connection to supplementary coil in SHW hot water tank....................................................................................................................................... 53
Connecting to DHW hot water...................................................................................................................................................................................................................53
Ventilation mounting
Duct system.............................................................................................................................................................................................................................................................................. 54
Legislation...................................................................................................................................................................................................................................................................... 54
Ducts..................................................................................................................................................................................................................................................................................... 54
Unit..........................................................................................................................................................................................................................................................................................54
Extract air........................................................................................................................................................................................................................................................................55
Supply air......................................................................................................................................................................................................................................................................... 55
Roof stacks.................................................................................................................................................................................................................................................................... 55
Initial regulation................................................................................................................................................................................................................................................................... 56
Important information...................................................................................................................................................................................................................................... 56
Initial regulation connectors...................................................................................................................................................................................................................... 56
Pressure fall diagram......................................................................................................................................................................................................................................... 56
Start-up
Central heating......................................................................................................................................................................................................................................................................57
Filling with water..................................................................................................................................................................................................................................................... 57
Topping up water.................................................................................................................................................................................................................................................... 57
Check the particle filter................................................................................................................................................................................................................................... 57
Troubleshooting
Emergency operation.....................................................................................................................................................................................................................................................58
Emergency operation domestic hot water................................................................................................................................................................................. 58
Emergency operation central heating.............................................................................................................................................................................................59
Compact P / Compact P Polar - GEO (English) BY NILAN
3

Domestic hot water.......................................................................................................................................................................................................................................................... 60
Errors and solutions domestic hot water..................................................................................................................................................................................... 60
Central heating......................................................................................................................................................................................................................................................................60
Failures and solutions central heating............................................................................................................................................................................................ 60
4

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.
Heat pump for central heating
CAUTION
To secure the heat pump against damages, it is fitted with the following safety equipment
• Expansion systems for central heating and buffertank
• Safety valve for central heating and buffertank
• Low and high pressure switch for compressor
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.
Compact P / Compact P Polar - GEO (English) BY NILAN
5

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.
6

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.
Unit type
Product description
Compact P GEO is a ventilation unit with an integral heat exchanger that also produces hot water for
domestic use as well as central heating via an ground source heat pump.
Compact P is designed for air flows of up to 275 m3/h at 100 Pa external counter-pressure. Compact P
XL can handle air flows up to 430 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 P 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 P 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
Compact P / Compact P Polar - GEO (English) BY NILAN
7

provides comfort for users of the dwelling, even at high indoor temperatures. Compact P 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".
The energy-efficient and low-noise GEOthermal heat pump heats the home via floor heating or low-
temperature radiators. It retrieves the energy from the earth. The heat pump has an electrical power
supply to help it to function during very cold periods. GEO can cool the home in the summer with
passive cooling, either through the underfloor heating system or fan coils.
The GEO ground source heat pump can also be used to help produce hot water for domestic use, either
by pre-heating the water in a buffer tank, or directly in a Compact P hot water tank, if bought with a
solar coil.
8

The unit
12
3
54
6
7
8
9
10
11
19
13
14
15
16
17
18
26
21
23
25
12
24
22
20
Compact P: GEO:
1. Duct connections
2. Front panel for filter changes
3. The control panel (touch-screen), can be
moved out and mounted wherever you wish
4. Extract air filter
5. Outdoor air filter (pollen filter placed here if
required)
6. Counterflow heat exchanger
7. Heat pump for ventilation and domestic hot
water
8. Automation
9. Fans
10. 100% bypass damper
11. Pre-heating element (Polar version only)
12. LAN cable (for connection to router or PC)
13. Condensate drain with water trap
14. 180 l domestic hot water tank (DHW)
15. 1,5 kW electrical supply heating element (with
overheating cut-out, which has to be pressed
in again if activated)
16. Electronically monitored sacrificial anode
17. Solar coil (SOL version only)
18. Plumbing connections
19. Electrical connection panel
20. Emergency mode
21. 2 x 8 l expansion tank for central heating and
brine circuit
22. Safety valve and manometer for the central
heating circuit
23. Inverter controlled DC compressor
24. Feed tab and particle filter for the central
heating circuit
25. Integrated circulation pump for the brine
circuit
26. 2 kW electrical supplement heating
Compact P / Compact P Polar - GEO (English) BY NILAN
9

Overview of temperature sensors
T11
T4
T6
T5
T3
T1/T20
T2
T12
T17/18
T16T13
T14
Temperature sensors in the unit Temperature sensors outside
the unit
Temperature sensors int the hot
water tank
T1: Outdoor air
T2: Supply air
T3: Extract air
T4: Extract air after heat
exchanger
T5: Condenser
T6: Evaporator
T7: Supply air after heating
element (accessory)
T8: Outdoor air before pre-
heating element (accessory)
T9: On heating element
(accessory)
TExt: External temperature
sensor
(accessory)
T11: Top of water tank
T12: Bottom of water tank
Temperature sensor Brine Temperature sensors GEO
T13: Brine supply flow
T14: Brine return flow
T16: Before condenser
T17: After condenser
T18: Supply flow central heating
T20: Outdoor temperature
T23: Evaporator temperature
10

Dimensional drawing
900
2065
120
179
399
141
337
160160
119
97
328
160
610
1
2
3
4
Connections:
1. Outdoor air
2. Supply air
3. Extract air
4. Discharge air
Weight: 257 kg
All dimensions in mm
Compact P / Compact P Polar - GEO (English) BY NILAN
11

Pipe diagram
PTL PTH
1
2
8
9
10
~
11 11
345
7
25
19
18
17
16
PZAL
20
18
14
28
13
14
15
14
40
6
46
12 12
18
14
15
14
13
13
41
22
23
21
22
23
21
24
42
43 26
27
27
17
36
Cooling module
Supply flow
Return flow
Central heating
Ground collectors
GEO heat pump
Everything within the red box is Nilan delivery.
1. Evaporator
2. Service valve for low pressure
3. Low-pressure pressostat
4. Compressor
5. High-pressure pressostat
6. Condensor
7. Expansion valve
8. Sight glass with humidity indicator
9. Service valve for high pressure
10. Combi filter
11. Connection 1"
12. Flexihose 1"
13. Feed tab
14. Shut-off valve
15. Dirt filter
16. Safety valve 3,5 bar
17. Manometer (for central heating, not mounted)
18. Ball valve
19. Circulation pump 130 mm
20. Pressure control 0,5/1,1 bar
21. Flexihose 10 mm
22. Expansion tank 8 L
23. Automatic control vent 3/8"
24. Electric cartridge 2 kW
25. Temperature sensor T18
26. Safety valve 2,5 bar (not mounted)
27. Connection 3/4"
28. Overcurrent valve
36. Circulation pump
40. Temperature sensor T13
41. Temperature sensor T14
42. Temperature sensor T16
43. Temperature sensor T17
46. Outdoor temperature sensor T20
ATTENTION
An overflow valve must be installed point 28 in the floor heating circuit, with a circulation pump
with fixed speed. Alternatively, remove the individual thermostats, to ensure sufficient flow.
12

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.
Water after-heating element incl. regulation
With a water after-heating element you can increase the supply air temperature
to the desired level. The water after-heating element is for duct mounting and
should be connected to the primary heat supply.
It is supplied with a two-way regulation valve, a temperature sensor and a frost
thermostat.
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.
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.
Compact P / Compact P Polar - GEO (English) BY NILAN
13

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.
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.
14

SHW hot water tank
If there is a large demand for hot water, a 250 litre hot water tank can be
connected.
The hot water tank is heated by the central heating system’s heat pump and/or
via solar panels.
The water runs from the SHW tank, through the DHW tank in Compact P, before
running into the domestic hot water supply.
Compact P / Compact P Polar - GEO (English) BY NILAN
15

Installation
Installing the unit
Transport into the dwelling
Compact P is supplied in one piece on a pallet, packed in cardboard.
It is fitted at the factory with 4 lifting straps, one for each top corner. This makes it possible to lift in the
unit with a crane. When lifting the units with the supplied straps, these must be at an angle of max. 45°
from the vertical.
Nilan also offers a lifting trolley, with which the unit can be lifted directly off the pallet and into the
building. If the filter box is removed, the unit can be manoeuvred through an ordinary door.
Positioning of unit
ATTENTION
When setting up the unit, consideration must always be given to future servicing and
maintenance.
It must be easy to replace filters, and it must be possible to perform tasks such as removing the
heat exchanger, replacing fans and other components.
ATTENTION
A minimum free space in front of the unit of 60 cm is recommended.
It is important that the unit is level in order to achieve proper run-off from the condensate tray.
The unit should be positioned on a level and vibration-free substrate. In itself, the unit is low-noise and
low-vibration, but even so, account must be taken of possible vibrations which could be transferred to
building parts. We recommend maintaining a minimum 10 mm gap from building parts and other fixed
equipment.
ATTENTION
For noise reasons, it is recommended that the unit is positioned with its rear panel against an
outer wall.
At the lower rear and sides there are punched
areas which can be clipped out.
This avoids the necessity of cutting holes
yourself.
The rear angle iron on the base frame can be
removed, allowing the unit to be pushed up
against the wall, thereby concealing the water
connections.
ATTENTION
If a screen is mounted over the Compact P, it must be easy to dismantle this.
16

Ground collector circuit
Examples of the laying
By laying the geothermal circuit there are some range distances, which need to be observed to get a
unit which will have an effective and smooth operation. Further local authorities may make
requirements for installation and acceptance of the facility before entry into use.
In some cases where there is less space vertically holes is drilled for hoses, but most lay the hoses
horizontally. Below are some examples of laying the ground collectors.
ATTENTION
Is is important to pressure test the pipes for tightness one by one immediately before covering
with soil, as during handling.
Example of layout of ground tubes collecting in a well.
Min.
1,5 m
Min. 0,6 m
Min. 0,4 m
Min.
1 m
Example of layout of ground tubes collected within the foundation.
Min.
1,5 m
Min. 0,6 m
Min.
1 m
Compact P / Compact P Polar - GEO (English) BY NILAN
17

Electrical 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
2 7
9 10 11
3 4 5 61 8
12 13 14 15
1. Electrical connection cable for GEO 3/6/9
2. Temperature sensors
3. Connector for additional electric heating in SHW tank
4. Crown sleeve for heat / cooling control (HEAT + COM: heat control. COM + COOL: cooling control)
5. RJ45 connector for T21, T22 and anode in SHW tank
6. Control cable for 3-way valve for SHW container
7. Power supply cable for supplementary electric heating for central heating
8. Power supply cable for circulation pump for central circuit
9. Communication cable for Compact P (control line between print)
10. Communication cable for GEO 3/6/9 (control cable for GEO)
11. Cable for environmental pressure switch
12. Brine pump supply cable
13. Power cable for GEO 3/6/9 + Compact P (mains supply cable)
14. Emergency operation of electricity supplement for central heating
15. Power supply 230V for Compact P
18

User panel
Touch panel
At delivery of the unit, the Touch panel is integrated in the front, but can be moved out, it you want to
place it in etc. the Kitchen or living room.
ATTENTION
An ordinary LAN cable must be used, not a crow over cable max 20 m.
Do you want to crimp a RJ45 plug on to a cable, you must notice the following:
1. Green/white
2. Green
3. Orange/white
4. Empty
5. Empty
6. Orange
7. Brown/white
8. Brown
g G o B b O br BR
T-568A
1 2 3 4 5 6 7 8
g G o B b O br BR
T-568A
1 2 3 4 5 6 7 8
The illustration shows the clip on the back of the connector.
1. Locking clip
2. Power connection
3. USB stick
Use RJ45 T568 type A plug and RJ45
crimping tool.
Touch panel seen from below.
The touch user panel should be located in a prominent place to allow changes to be made to settings
and for observing operational warnings or alarms.
Dimensional drawing user panel
Compact P / Compact P Polar - GEO (English) BY NILAN
19

Placement of the Touch panel
Below is shown how the touch panel can be moved out of the unit. The following page shows how to
mount the wall bracket for the Touch panel.
1. Unscrew the two screws at the top of the lid so it can be
removed.
2. At the top is the aperture plate that is intended to
block the hole when the touch panel is removed.
3. The Touch panel is lifted by pressing the lock clamp at
the bottom.
4. Unscrew the cover and hang it next to the hole.
5. Unscrew the Touch panel wires from the circuit board,
remove the wall bracket and mount it where the Touch
panel is to be hung.
6. Route the wire from the Touch panel down into the
Compact P, where it is connected to the circuit board.
7. Connect the touch panel as shown in the above
diagram, see accompanying electrical diagram. The blue
and blue/white wires should not be used.
8. Fix the aperture plate to the cover in front of the circuit
board. Re-attach the lid and secure with the two screws
at the top, giving you a nice white surface.
20