nilan CTS700-TOUCH Compact P GEO User manual

INSTALLATION INSTRUCTIONS
CTS700-TOUCH BY NILAN
Compact P / Compact P Polar - AIR (English)
Version 2.30 - 14.08.2018

TABLE OF CONTENTS
Safety
Starting the external unit .................................................................................................................................................................................................................................5
Power supply .................................................................................................................................................................................................................................................................. 5
Heat pump domestic hot water ................................................................................................................................................................................................................. 5
Heat pump for central heating.................................................................................................................................................................................................................... 5
Disposal............................................................................................................................................................................................................................................................................................. 6
Ventilation system .................................................................................................................................................................................................................................................. 6
Heatpump .......................................................................................................................................................................................................................................................................... 6
General information
Introduction.................................................................................................................................................................................................................................................................................. 7
General information prior to installation ........................................................................................................................................................................................7
Unit type........................................................................................................................................................................................................................................................................................... 7
Product description ................................................................................................................................................................................................................................................ 7
The installation's internal unit..................................................................................................................................................................................................................... 9
The external unit..................................................................................................................................................................................................................................................... 10
Overview of temperature sensors .....................................................................................................................................................................................................11
Dimensional drawing ......................................................................................................................................................................................................................................... 12
Pipe diagram ............................................................................................................................................................................................................................................................... 13
Accessories................................................................................................................................................................................................................................................................................14
Electrical preheating element for frost protection.......................................................................................................................................................... 14
Water heating element incl. regulation .........................................................................................................................................................................................14
Electrical heating element ...........................................................................................................................................................................................................................14
Pollen filter.....................................................................................................................................................................................................................................................................14
EM box ................................................................................................................................................................................................................................................................................ 14
CO2 sensor..................................................................................................................................................................................................................................................................... 14
Safety group.................................................................................................................................................................................................................................................................15
Safety features ........................................................................................................................................................................................................................................................15
Flexible silencing...................................................................................................................................................................................................................................................... 15
Trolley................................................................................................................................................................................................................................................................................. 15
SHW hot water tank ............................................................................................................................................................................................................................................ 15
Installation
Installing the internal unit......................................................................................................................................................................................................................................... 16
Transport into the dwelling ........................................................................................................................................................................................................................ 16
Positioning of unit.................................................................................................................................................................................................................................................. 16
Installing the external unit........................................................................................................................................................................................................................................17
Installation transport of external unit.............................................................................................................................................................................................17
Sound data......................................................................................................................................................................................................................................................................18
Installing the external unit .......................................................................................................................................................................................................................... 19
Fixing of external unit to substrate.................................................................................................................................................................................................... 20
Foundation..................................................................................................................................................................................................................................................................... 20
Condensate drain ...................................................................................................................................................................................................................................................21
Electrical installation
Safety.................................................................................................................................................................................................................................................................................. 22
Connections overview....................................................................................................................................................................................................................................... 22
User panel....................................................................................................................................................................................................................................................................................23
Touch panel .................................................................................................................................................................................................................................................................. 23
Dimensional drawing user panel............................................................................................................................................................................................................ 23
Placement of the Touch panel ................................................................................................................................................................................................................. 24
Mounting the wall bracket ...........................................................................................................................................................................................................................25
Electrical connections unit....................................................................................................................................................................................................................................... 26
Safety.................................................................................................................................................................................................................................................................................. 26
Compact P AIR............................................................................................................................................................................................................................................................ 26
Electrical connections accessories................................................................................................................................................................................................................. 27
External electrical preheating element ........................................................................................................................................................................................ 27
2

Electric heating element................................................................................................................................................................................................................................. 28
Water heating element ....................................................................................................................................................................................................................................29
CO 2 sensor ...................................................................................................................................................................................................................................................................31
Cooker hood and EM box.................................................................................................................................................................................................................................33
SHW hot water tank............................................................................................................................................................................................................................................. 34
Other electrical connections.................................................................................................................................................................................................................................. 35
User selection 1........................................................................................................................................................................................................................................................ 35
User selection 2 ....................................................................................................................................................................................................................................................... 36
External room sensor......................................................................................................................................................................................................................................... 37
Fire protection .......................................................................................................................................................................................................................................................... 37
Common alarm........................................................................................................................................................................................................................................................... 38
External heat supply .......................................................................................................................................................................................................................................... 38
External underfloor heating control .................................................................................................................................................................................................39
Smart Grid ......................................................................................................................................................................................................................................................................39
Connecting EHD damper ................................................................................................................................................................................................................................ 40
BAH Geothermal heater .................................................................................................................................................................................................................................41
Active cooling function..................................................................................................................................................................................................................................... 42
Plumbing installation
Condensate drain, internal unit.......................................................................................................................................................................................................................... 43
Important information...................................................................................................................................................................................................................................... 43
Hot water tank....................................................................................................................................................................................................................................................................... 44
Connection overview.......................................................................................................................................................................................................................................... 44
Connection .................................................................................................................................................................................................................................................................... 44
Hot water circulation.......................................................................................................................................................................................................................................... 45
Solar coil............................................................................................................................................................................................................................................................................45
Softened water ........................................................................................................................................................................................................................................................ 45
Central heating......................................................................................................................................................................................................................................................................46
Water connection overview, internal unit...................................................................................................................................................................................46
Connections overview, external unit................................................................................................................................................................................................ 47
Insulation of hoses from the outdoor unit...................................................................................................................................................................................47
Check list for the central heating system prior to start-up.................................................................................................................................... 48
Plumbing connections for accessories........................................................................................................................................................................................................49
Safety group ............................................................................................................................................................................................................................................................... 49
Safety group with anti-scald protection.......................................................................................................................................................................................50
Hot water heating element (accessory) - duct mounted............................................................................................................................................ 51
Output chart, hot water heating element ...................................................................................................................................................................................52
Hot water tank........................................................................................................................................................................................................................................................... 53
Connecting to SHW hot water................................................................................................................................................................................................................... 54
Connecting to DHW hot water ................................................................................................................................................................................................................. 55
Ventilation mounting
Duct system.............................................................................................................................................................................................................................................................................. 56
Legislation...................................................................................................................................................................................................................................................................... 56
Ducts..................................................................................................................................................................................................................................................................................... 56
Unit..........................................................................................................................................................................................................................................................................................56
Extract air........................................................................................................................................................................................................................................................................57
Supply air......................................................................................................................................................................................................................................................................... 57
Roof stack....................................................................................................................................................................................................................................................................... 57
Initial regulation................................................................................................................................................................................................................................................................... 58
Important information...................................................................................................................................................................................................................................... 58
Initial regulation connectors...................................................................................................................................................................................................................... 58
Pressure fall diagram......................................................................................................................................................................................................................................... 58
Startup
Central heating......................................................................................................................................................................................................................................................................59
Filling with water..................................................................................................................................................................................................................................................... 59
Topping up water.................................................................................................................................................................................................................................................... 59
Check the particle filter ..................................................................................................................................................................................................................................59
Compact P / Compact P Polar - AIR (English) BY NILAN
3

Troubleshooting
Emergency operation.....................................................................................................................................................................................................................................................60
Emergency operation domestic hot water................................................................................................................................................................................. 60
Emergency operation central heating.............................................................................................................................................................................................61
Domestic hot water.......................................................................................................................................................................................................................................................... 62
Errors and solutions domestic hot water ....................................................................................................................................................................................62
Central heating......................................................................................................................................................................................................................................................................62
Failures and solutions central heating............................................................................................................................................................................................ 62
4

Safety
Starting the external unit
The external AIR unit is equipped with a compressor heater, which heats up the compressor prior to
starting and in case of low outdoor temperatures. This facilitates start-up and extends the
compressor’s service life.
CAUTION
The compressor heater must be left on for a minimum of 3 hours before starting the
compressor for the first time.
Power supply
CAUTION
Always disconnect mains electricity to the unit if a fault occurs which cannot be rectified via the
control panel.
CAUTION
If a fault occurs on the electricity-conducting elements of the unit, always contact an
authorised electrical installer to rectify the fault.
CAUTION
Always disconnect mains electricity to the unit before opening the doors, e.g. 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 - AIR (English) BY NILAN
5

Disposal
Ventilation system
Nilan units mainly consist of recyclable materials. They should therefore not be
disposed of with household refuse. Take them to your local recycling centre.
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
The instructions can be downloaded from the Nilan website: http://www.nilan.dk/en-gb/frontpage/
download
If you have further questions on unit installation after reading the instructions, contact your nearest
Nilan distributor, who can be found on www.nilan.dk/en-gb/frontpage/download/dealers.
The purpose of these instructions is to give the installer advice on correct installation and maintenance
of the unit.
The unit must be started up immediately after installation and connection to the duct system. In
periods where the ventilation system is not in operation, humid air from the rooms may penetrate into
the ducts and form a condensate. The condensate may leak out of the valves and damage furniture and
floors. In addition, condensate may form inside the unit, damaging the unit's electronics and fans.
The unit is supplied fully tested and ready for operation.
Unit type
Product description
Compact P AIR is a ventilation unit with an integral heat exchanger that also produces hot water for
domestic use as well as central heating via an air/water heat pump.
Compact P is designed for air flows of up to 275 m 3 /h at 100 Pa external counter-pressure. Compact P
XL can handle air flows up to 430 m 3 /h at 100 Pa external counter-pressure.
The ventilation part draws the humid, vitiated air out of the dwelling via the bathroom, WC, kitchen and
utility room and introduces fresh air into the habitable rooms, i.e. living room, bedrooms and office. The
cold outdoor air is heated up in the heat exchanger (heat recovery) by the 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 (inlet air) during periods in which no
domestic hot water is being produced. The supply air can be heated to 34 °C.
As it is a reversible heat pump, it can be used in summer to cool the supply (inlet) air. Compact P is able
to cool the supply air by up to 10 °C. However, it will not function as an air conditioning unit, as it
operates with a relatively low air change rate. Cooling of the supply air removes humidity from the
indoor air, providing good comfort for persons in the dwelling, even if the indoor temperature is high.
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".
Compact P / Compact P Polar - AIR (English) BY NILAN
7

The energy-efficient and low-noise AIR air/water heat pump heats the home via floor heating or low-
temperature radiators. It extracts energy from the outside air and functions at temperatures as low as
-22 ºC. The heat pump has an electrical power supply to help it to function during very cold periods. The
AIR unit has a reversible cooling circuit, which means that it can also be used to cool the home during
the summer, using either the floor heating system or fan coils.
The AIR air/water 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 installation's internal unit
1 2
3
5 4
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
22
23
24
25
19
Compact P: AIR:
1. Duct connections
2. Lid for filter changes
3. Control panel (touch screen), can be detached
4. Extract air filter
5. Outdoor air filter (this is the location for
pollen filter, if one is installed, as an additional
purchase)
6. Counterflow heat exchanger
7. Heat pump for ventilation and hot water
8. Automatic control system
9. Fans
10. 100% bypass damper
11. Preheating element (Polar version only)
12. LAN cable (for connection to router or PC)
13. Condensate drain with water trap
14. 180 l hot water tank (DHW)
15. 1.5 kW electrical supply heating (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. Connection panel
20. 2 x 3 kW additional electrical central heating
elements
21. 8 l expansion tank for central heating circuit
22. Safety valve and manometer for the central
heating circuit
23. 50 l buffer tank
24. Feed cock and particle filter for the central
heating circuit
25. Circulation pump for circulation to the
external unit
Compact P / Compact P Polar - AIR (English) BY NILAN
9

The external unit
1. Evaporator element
2. Ventilator
3. Condensate drain with integrated heating cable
4. Heat pump
5. Connectors to internal unit (liquid)
6. Communication to internal unit and electrical connection
10

Overview of temperature sensors
T2
T1 T4
T11
T20 T23
T17
T16
T18
T12
T6
T5
T3
Temperature sensors in the unit Temperature sensors outside
the unit
Temperature sensors in the hot
water tank
T1: Outdoor air
T2: Supply air (inlet)
T3: Extract air (outlet)
T4: Extract air after heat
exchanger
T5: Condenser
T6: Evaporator
T7: Supply air after heating
element (accessory)
T8: Outdoor air before
preheating element (accessory)
T9: On heating element
(accessory)
TExt: External temperature
sensor (accessory)
T11: Top of tank
T12: Bottom of tank
Temperature sensor in internal
unit
Temperature sensor in external
unit
T18: Buffer tank (flow) T16: Before condenser (to
external unit)
T17: After condenser (from
external unit)
T20: Outdoor temperature
T23: Evaporator surface
Compact P / Compact P Polar - AIR (English) BY NILAN
11

Dimensional drawing
Internal unit:
900
2065
120
179
399
141
337
160160
119
97
328
160
610
1
2
3
4
Connections:
1. Outdoor air
2. Supply air (inlet)
3. Extract air (outlet)
4. Discharge air
Internal unit weight: 257 kg
External unit weight: 125 kg
All dimensions in mm
External unit:
962
1301
905
542
485
12

Pipe diagram
External AIR unit Internal AIR unit
1" flow
1" return
3/4" flow
3/4" return
Buffer tank
18. Connection 1"
19. Flexible hose 1"
20. Shutoff valve
21. P1 circulation pump 130 mm
23. Electrical supply heating 2 x 3 kW
24. Temperature sensor T18 buffer tank (flow)
25. Flexible hose 10 mm
26. Automatic vent 3/8"
27. Expansion tank 8 litre
28. Manometer
29. Safety valve 2.5 bar
30. Shutoff valve with particle filter
31. P2 circulation pump
37. Feed tap 1/2"
50. Temperature sensor T23 evaporator element
51. Temperature sensor T20 outdoor temperature
52. Temperature sensor T17 after condenser
53. Temperature sensor T16 before condenser
Compact P / Compact P Polar - AIR (English) BY NILAN
13

Accessories
Electrical preheating 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 preheating element uses very little energy, but ensures efficient heat
recovery without de-icing, thus achieving an overall saving in energy
consumption.
Water heating element incl. regulation
A water heating element can be used to increase supply air temperature to the
desired level. It is fitted in the supply air duct and must be connected to the
primary heat supply.
Supplied with a two-way regulating valve, temperature sensor and frost
thermostat.
Electrical heating element
An electric heating element allows the supply air temperature to be raised to the
desired level. Electric heating elements are supplied for mounting in the supply
air duct, and are provided with the necessary sensors.
Pollen filter
The unit is supplied as standard with filter sheet.
If persons in the dwelling suffer from a pollen allergy, there is an option for
mounting a pollen filter in the outdoor air inlet to minimise the pollen in the
indoor air.
EM box
With an EM box it is possible to divide the extract air between the kitchen and
bathroom.
If the cooker hood is operating via the unit and is switched on, air extraction from
the bathroom reduces slightly to allow sufficient air for the cooker hood to
extract kitchen fumes.
The EM box has a metal filter which efficiently separates grease particles from
the cooker hood air, thus protecting 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.
14

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 silencing
To facilitate later servicing of the unit, we recommend fitting a flexible
connection between the unit and the duct system.
Nilan's sound damping flexi-hose gives good sound damping both to the duct
system and to 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.
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 - AIR (English) BY NILAN
15

Installation
Installing the internal 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

Installing the external unit
Installation transport of external unit
The external AIR unit is supplied film-wrapped and fastened with straps to a transport pallet.
If ground conditions allow, it is recommended that a lifting truck is used to move it.
ATTENTION
If the AIR unit is lifted in using a crane, please notice that the weight is not evenly distributed at
the front and back.
Compact P / Compact P Polar - AIR (English) BY NILAN
17

Sound data
The sound from the AIR unit's external unit can be propagated depending on where it is sited relative to
the building and the underlying surface, as well as on other surrounding objects and surfaces.
Q = 2 (free-standing) Q = 4 (against a wall) Q = 8 (in a corner)
Sound effect LWA dB(A) 7/6 ºC - 30/35 ºC = 46 db(A) in accordance with EN14511, EN12102 and
EN3743/1
Sound pressure LpA dB(A) calculated in accordance with EN13487:2003:
Distance in metres 12610 21
Location factor 2 38 32 22 18 12
Location factor 4 41 35 26 21 15
Location factor 8 44 38 28 24 18
18

Installing the external unit
The external unit must always be installed on a firm, vertical and vibration-free surface and secured to
some solid material if possible. Account must also be taken of the prevailing wind direction during the
heating season, as the performance of the heat pump will be limited if the external unit is exposed to
strong winds.
A windbreak can be installed if required. However, clearance distances as detailed below must be
observed.
The following horizontal minimum distances to building components etc. must be observed in order to
ensure optimum functioning of the heat pump.
L≥40 cm
L≥35 cm
L≥50 cm
L≥40 cm
If it is wished to install the AIR unit against the building, it is important not to install it close to any
bedrooms due to the noise from the fan.
Locate the AIR unit in such a way that the intake air is drawn from the building's surface. This is
because solar heating of the wall during the day and general heat loss from the building supplies
additional energy to the air, which can then improve the efficiency of the heat pump. If the AIR unit is
located with the extract directed at the wall, this will result in cold and damp air being blown against the
building, adding extra energy to the air.
Compact P / Compact P Polar - AIR (English) BY NILAN
19

Fixing of external unit to substrate
If the external unit is placed in a windy area, e.g. on a roof, it will be necessary to fix it to the substrate
using the 6 pre-drilled holes in the base.
932
926
512 506
65
347,45
629,90
45
A
Compressor unit
10
A
10
10
10
10
10
Possible mounting holes
Foundation
ATTENTION
Place the AIR unit on a stable base, ideally a cast foundation.
1301
962 542
80
ca.990 mm
ca.595 mm
150 mm 150 mm
min. 250 mm
Adjustable feet
Soakaway Electrical conduit min. 50mm
20