nilan Compact P Polar EK 6 kW CTS 700 Instruction Manual

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Compact P Polar EK 3 kW
Compact P Polar EK 6 kW
Compact P Polar EK 9 kW
Version: 1.00, 12-11-2015
Software version 1.40.05
Installation and maintenance
CTS 700 by Nilan

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Table of contents
Table of contents ............................................................................................................................2
General information before starting installation............................................................................... 3
Safety............................................................................................................................................. 4
Compact P.....................................................................................................................................5
The function....................................................................................................................................5
Installing Compact P.......................................................................................................................6
Temperature sensor overview......................................................................................................... 8
Condensation drain/water trap........................................................................................................9
Water connection.......................................................................................................................... 10
Power supply................................................................................................................................ 12
Duct connection............................................................................................................................ 13
Supplementary heating element DHW.......................................................................................... 14
Fault finding.................................................................................................................................. 15
Operation and maintenance ......................................................................................................... 16
Adjustment of EK for water-borne system..................................................................................... 18
Energy-saving tips for the optimal operation................................................................................. 19
Accessories / spare parts ............................................................................................................. 20

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General information before starting installation

Check that the following papers have been supplied with the product:
- Installation and maintenance (this document)
- User manual
- Wiring diagram
Should you have any further questions concerning installation of the product after reading the
guide, please contact your nearest Nilan dealer, by visiting www.nilan.dk/dealers
The product is controlled by an CTS 700 control system, which provides a wide range of functions.
Compact P is a heat recovery ventilation system with a capacity of up to 330m3/h at 100Pa exter-
nal counter pressure. The system prioritises first the heat pump, second a 180-litre hot water tank
and then intet air.
The outdoor AIR 9 heat pump is an air-to-water heat pump, designed for heating homes with low
temperature central heating systems with a supply temperature of up to 45 °C.
All necessary permits and approvals must be obtained from the relevant authorities before in-
stalling an outdoor air heat pump. Check for any noise limitations which may apply to the outdoor
element of the heat pump.
The unit is supplied with integral G4 panel filter and humidity sensor. The unit can also be fitted
with a pollen filter (accessory).
This manual might describe functions and facilities that are not present in your system.
IMPORTANT: If the plant is damaged in any way it must be inspected and repaired by an author-
ized person.

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Safety
Always disconnect the main power to the heat pump, if an alarm occurs, which
cannot be rectified via the control panel.
If an alarm occurs on the electricity-conducted elements of the pump, always con-
tact an authorised electrical installer to rectify the alarm.
Avoid direct contact with the pump's heating system pipes - they can be very hot!
To protect the heat pump from damage, it is fitted with following safety
devices:
•Expansion systems for central heating and heat absorber.
•Safety valve for central heating and heat absorber.
•Low and high pressure switches for the compressor
The heat pump must be serviced regularly in accordance with applicable laws and
regulations, such that it is kept in good condition and meets safety and environ-
mental requirements.
The owner/user of the heat pump is responsible for the maintenance.

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Compact P
The function

All wiring (power supply, safety circuit breaker, etc.) must only be fitted by a qualified
electrician.
The system must be connected in accordance with the accompanying wiring diagram.
The Compact P plant is a complete solution that ventilates the property and ensures a good indoor
climate. Furthermore, the Compact P produces hot water.
Unit components (function)
The Compact P consists of a counter flow exchanger followed by a heat pump with a reversible
cooling circuit.
The unit draws the warm and humid air from moisture strained spaces, such as bathrooms, kitch-
ens and utility rooms. The heat in the exhaust air flows through the counter flow exchanger, where
it heats the fresh air and blows it into the rooms of the property, after. The energy that has not
been utilized in the counter flow exchanger is recovered in the heat pump in order to produce hot
water. When there is no need for the production of hot water, the heat pump can be used to heat
the supply air as needed. During summertime, the heat pump can cool and dehumidify the warm
air from outside in order to obtain a comfortable indoor climate.
Figure 1: System build-up

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Installing Compact P

When installing the unit, it is important to take future service and maintenance into ac-
count. There should be a minimum clearance of 60 cm in front of the unit, measured from
the Compact P front panel.

When lifting the unit with straps it is important that the straps have
an angle of maximum
45°C off perpendicular.
Individual connectors have been marked out at the factory to facilitate installation. Please note the
attached labels. The connectors should be connected to the duct system using flexible adapters
(flex tube, soundproofed flex tube or similar).
Figur 2: Duct Connections
1. Ø160
Afkastluft
Fortluft
Discharge air
Air extrait
2. Ø160
Fraluft
Abluft
Exhaust air
Air repris
3. Ø160
Tilluft
Zuluft
Inlet air
Air pulsè
4. Ø160
Udeluft
Aussenluft
Fresh air
Air frais

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Figur 3: Sketch of Compact P
The unit must be installed and leveled on a firm, vibration-free surface. There should be at least
10mm clearance to walls or other permanent installations. Although the unit itself is practically
noise and vibration free, care must be taken to prevent any vibration from being propagated to ad-
joining parts of the building.
The rear angular slide bar of the base frame of the Compact P can be removed in order to make it
possible to push the unit towards the wall to hide water connections etc.
It is important that the condensation outlet of the Compact P be connected to a drain. The unit is
supplied complete with water trap. The outlet should be led frost-free with steady decline to the
nearest drain. The safety valve overflow must also be led to a visible drain.
If Compact P is enclosed by any covering, it must be possible to remove the covering easily.

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Temperature sensor overview
Figur 4: Location of temperature sensors
E
E
1
1
T1:
Outdoor air
T2:
Air intake
T3:
Extracted air
T4:
Output
T5:
Condenser
T6:
Evaporator
T7:
Air intake air (after heating
element)
T8:
Outdoor air (before pre-
heating element)
T9:
On water heating coil
T11:
Top of tank
T12:
Tank base
TPanel:
CTS 700 control panel
E1:
EK Modul 3 kW / 6 kW / 9 kW
T2
T1
T3
TPanel

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Condensation drain/water trap
Compact P is supplied with 20mm condensation outlet (PVC, GF fittings). The unit is also equipped
with built-in water trap.

The condensation outlet must be led frost-free with a steady decline of at least 1 cm/m to
the nearest drain. The safety valve overflow must also be led to a visible drain.

In order to prevent ice formation, it may be necessary to equip the condensation outlet
with a heating cable where frost is possible Protecting the condensation outlet from frost
is the responsibility of the fitter.

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Water connection
The inner tank surface is enamelled and the tank is equipped with a sacrificial anode.
All connectors have 3/4” threads, with the exception of the anode access which is a 5/4” sleeve.
All water pipes are connected to the bottom of the unit.
If you wish, you can establish a hot water circulation system. Simply fit a return valve to the tank's
circulation connector.
If hot water circulation is not required, the connector and fitted blanking plug should be left un-
touched.
Hot water circulation may result in considerable heat loss within the piping system. A large propor-
tion of heat pump output may therefore be lost. To prevent heat loss, circulation and hot water
pipes must be insulated with at least 30mm of mineral wool or other type of pipe insulating materi-
al.
Figur 5: Location of sacrificial anode