INSTALLATION INSTRUCTIONS

Transcription

1 INSTALLATION INSTRUCTIONS CTS700-TOUCH BY NILAN Compact P / Compact P Polar - EK (English) Version

2 TABLE OF CONTENTS Safety Power supply... 4 Heat pump domestic hot water...4 Disposal... 4 Ventilation system...4 Heatpump...4 General details Introduction... 5 General information prior to installation...5 Unit type... 5 Product description...5 The system... 7 Overview of temperature sensors...8 Dimensional drawing... 9 Accessories...10 Preheating element for frost protection...10 Adjustable water comfort heater...10 Electric heating element...10 Pollen filter F EM box CO2 sensor Safety group...11 Safety features...11 Flexible silencing...11 Trolley Installation Assembly...12 Transport into the dwelling Positioning of unit Electric installation Safety Connection points...13 Control panel...14 Touch panel Control panel connection...14 Wall fittings...15 Electric connections of the unit...16 Supply Compact P Electric boiler...17 Electrical connections accessories External electrical preheating element Electric heating element...19 Water comfort heater...20 CO2 sensor Cooker hood and EM box...23 Other electrical connections User selection User selection External room temperature sensor Fire protection Common alarm...27 External heat supply Connecting EHD damper

3 Compact P / Compact P Polar - EK (English) BY NILAN BAH Geothermal heater...29 Plumbing Condensation drain...30 Important information...30 Hot water tank Connection overview...31 Connection Hot water circulation...32 Solar coil...32 Softened water Central heating...33 Connection overview electric boiler...33 Waterconnection electric boiler...34 Pipe diagram...34 Check list for the central heating system prior to start-up Plumbing connections for accessories...36 Safety group Safety group with anti-scald protection...37 Hot water heater (accessory)...38 Output chart, hot water heater...39 Ventilations mounting Duct system Legislation Ducts Unit...40 Extract air...41 Supply air Roof stack Initial regulation Important information...42 Initial regulation connectors Pressure fall diagram Troubleshooting Domestic hot water Errors and solutions domestic hot water

4 Safety 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. High-pressure cut-out 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. 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 Conserning disposal og units with heat pumps, it ist 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 corectly. 4

5 Compact P / Compact P Polar - EK (English) BY NILAN General details 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: download If you have further questions on unit installation after reading the instructions, contact your nearest Nilan distributor, who can be found on 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 EK is a ventilation unit with an integral heat exchanger that also produces hot water for domestic use as well as central heating via an electric boiler. 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 xternal 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 could 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 during periods in which not domestic hot water is being produced. The supply air can be heated up to 34 ºC. As it is a reversible heat pump, it can be used in summer to cool the supply air. Compact P is able to cool the supply air by up to 10 ºC. 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". 5

6 The silence electric boiler heats the home via floor heating or radiators. 6

7 Compact P / Compact P Polar - EK (English) BY NILAN The system Compact P: 1. Duct connections 2. Filter change cover 3. Control panel (touch-screen) 4. Extraction filter 5. Outdoor air filter (F7 filter are placed here if required) 6. Counterflow heat exchanger 7. Heat pump 8. Automation 9. Fans % bypass shutter 11. Pre heating element (Polar version only) 12. LAN cable (for connecting to router or PC) 13. Condensation drain with water lock l domestic hot water tank 15. 1,5 kw electric supplement heater (with overheating protection, must be pushed by outages) 16. Electronically monitored sacrificial anode 17. Solar panel coil (only SOL models) 18. Plumbing connection 19. Electric boiler for central heating 7

8 Overview of temperature sensors T3 T2 T1/T20 T5 T6 T4 T11 T12 Temperature sensors in the unit T1: Outdoor air T2: Supply air T3: Extract air T4: Extract air after heat exchanger T5: Condensor T6: Evaporator Temperature sensors outside the unit T7: Supply air after heating element (accessory) T8: Outdoor air before preheating element (accessory) T9: On after heating element (accessory) TExt: External temperature sensor (accessory) Temperature sensors in the hot water tank T11: Top of hot water tank T12: Bottom of hot water tank 8

9 Compact P / Compact P Polar - EK (English) BY NILAN Dimensional drawing Connections: 1. Outdoor air 2. Supply air 3. Extract air 4. Discharge air Weight: 260 kg. 9

10 Accessories Preheating element for frost protection If the unit has not been purchased in the Polar version with integral preheating element, there is an option for purchasing an external 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 electric 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. Adjustable water comfort heater A water comfort heater 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. Electric 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 F7 The unit is supplied as standard with a G4 filter. If persons in the dwelling suffer from a pollen allergy, there is an option for mounting a F7 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. 10

11 Compact P / Compact P Polar - EK (English) BY NILAN CO 2 sensor Fitting a CO 2 sensor means the ventilation speed can be pre-programmed to run higher ventilation levels in the event of high CO 2 level in the extracted air. CO 2 levels can be programmed. Safety group 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. 11

12 Installation Assembly 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 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. 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. 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. If a screen is mounted over the Compact P, it must be easy to dismantle this. 12

13 Compact P / Compact P Polar - EK (English) BY NILAN Electric installation Safety All work must be carried out by qualified personnel and in accordance with applicable legislation and regulations. It is important that power is disconnected when working with the unit's electrical components. It is important to check that cables have not been damaged or trapped during connection and use. Connection points Connection of 230V power supply and LAN cable are behind the large door on the unit. Connection of the control panel via an RJ45 jack is on the top of the unit Control panel connection (RJ45 jack) 2. Connection of 230V power supply via Schuko socket (remember earth connection) 3. Connection of PC or router via LAN-cabler 4. Connection of electric boiler 13

14 Control panel Touch panel The unit is supplied with a 3 m cable with RJ45 plug mounted on the touch panel for connection to the unit. The cable may be extended to a maximum length of 50 m. An ordinary LAN cable must be used, not a crowwover bacle max 50 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 Use RJ45 T568 type A plug and RJ45 crimping tool. 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. Touch panel seen from below: 1. Locking clip 2. Power connection 3. USB stick Control panel connection 14

15 Compact P / Compact P Polar - EK (English) BY NILAN Wall fittings The touch panel should be mounted on the wall with the integral wall fittings, and the cable form the unit is mounted here too. 1. The wall bracket is fixed to the wall with two screws. 2.a. The RJ45 plug is mounted in the wall fitting with the the top of the plug flush with the dotted line in the wall fitting, and with the RJ45 trigger pin away from the wall. 2.b. You can fit the RJ45 plug to the cable you make yourself. A spacer is supplied for this purpose. The specer is fastened to the LAN-cable which is located behind the large door. 2.c. The top of the plug must be flush with the dotted line in the wall fitting. The spacer fits between the plug and cable relief bracket. 3. The cable may be led down from the wall fitting or into a hole in the wall behind it. 4. Push the touch panel down over the wall bracket until a click is heard. The panel may be removed from the wall by pressing the locking clip. 5. The touch panel is ready for use. 15

16 Electric connections of the unit Supply CAUTION Power sypply including safety switch must be installed by a certified electrician. It comes with a power cable for connection in socket. It is important for the unit to be bonded to earth. Compact P Ventilation and hot water 230V Hz max 13A (Schuko plug) (Polar version 16A) Safety switch 16

17 Compact P / Compact P Polar - EK (English) BY NILAN Electric boiler EK 3 kw Option 1: 1 x 230V 50 Hz 1N 16A Option 2: 3 x 400V 50 Hz 3N 16A EK 6 kw Option 1: 1 x 230V 50 Hz 1N 32A Option 2: 3 x 230V 50 Hz 3N 13A Option 3: 3 x 400V 50 Hz 3N 16A EK 9 kw Option 1: 3 x 400V 50 Hz 3N 16A 17

18 Electrical connections accessories External electrical preheating element If Compact P has not been purchased in the Polar version with integral preheating element, there is an option for purchasing an external electrical preheating element for subsequent installation. The electric preheating element is mounted in the outdoor air duct before the unit with the necessary temperature sensor, and connected to an external power supply. Min. 32 cm T x230V ~ 50 Hz max. 16A It is important that the temperature sensor for the heating element is positioned at least 32 cm after the preheating element in order to achieve correct regulation. The T8 outdoor air temperature sensor is positioned before the external preheating element and connected to the Compact P control system, to allow it to perform regulation via the outdoor air temperature. If it is not wished to regulate the functions via the outdoor air temperature, T8 may be deactivated in the software under the frost protection section: The preheating element has a three-stage safety system against overheating. 1. There is a operating thermostat which regulates the heat and ensures that the supply air temperature does not fall below -1 C 2. There is a max. thermostat, which shuts down the preheating element if the temperature rises above 50 C 3. There is a manual safety thermostat, which shuts down the preheating element if the temperature rises above 100 C When mounting the electric preheating element, there must be a safety gap of minimum 15 cm from any flammable material. The heating element must be insulated with a fire retardant insulation material, but the cover on the connection box must not be insulated. A dimensional drawing is available under the section on the electric heating element. 18

19 Compact P / Compact P Polar - EK (English) BY NILAN Electric heating element If it is wished to control the supply air temperature, it will be necessary to fit a heating element. An electric heating element can be purchased for fitting in the supply air duct (inlet air), and comes with the necessary sensor and connection to the unit. Min. 50 cm T7 1x230V ~ 50 Hz max. 16A 0-10V GND 0-10V GND T7 Wiring diagrams are supplied with the products. The heating element is set on the display under menu option: Ventilation/Heating element. The wires are led alongside the duct and drawn through the bushing on top of the Compact P, led down to the circuit board and mounted in accordance with the wiring diagram. When mounting the electric heating element, there must be a safety gap of minimum 15 cm from any flammable material. The heating element must be insulated with a fire retardant insulation material, but the lid on the connection box must not be insulated. Dimensional drawing: Positioning options: Ø160 19

20 Water comfort heater If it is wished to control the supply air temperature, it will be necessary to fit a heating element. A water heating element can be purchased for fitting in the supply air duct, and comes with the necessary sensor and connection to the unit. Connecting the sensors T7 Min. 50 cm T9 B44 B T7 T9 T7: Temperature sensor - T9: Temperature sensor heating element - B44: Frost protection When B44 frost protection is mounted, the jumper in the same connections is removed. The wires are led alongside the duct and drawn through the bushing on the top of the Compact P, led down to the circuit board and mounted in accordance with the wiring diagram. The heating element settings can be found on the display under menu option: Ventilation / Heating element. 20

21 Compact P / Compact P Polar - EK (English) BY NILAN Electrical connection for 2-way valve 1 1. A 24V autotransformer is supplied and should be installed in a suitable position in the unit. The valve must not be connected to a 230V power supply The wires are led alongside the duct and drawn through the bushing on the top of the Compact P, led down to the circuit board and mounted in accordance with the wiring diagram. Dimensional drawing: 22 3/4" RG Ø 125/ /4" RG 21

22 CO 2 sensor It is possible to purchase a CO 2 sensor as an accessory if it is wished to control the ventilation level via the CO 2 level in the dwelling. The CO 2 sensor is positioned in the extract air from the dwelling, and mounted on the beam with the screws supplied: The wire from the CO 2 sensor is led to the circuit board and connected as shown below: The three wires are connected as follows: GND: Blue Out: Black 24V Brown 22

23 Compact P / Compact P Polar - EK (English) BY NILAN Cooker hood and EM box There are several benefits from connecting the cooker hood to the dwelling's ventilation system. Firstly, there is full heat recovery of heat from cooking. Secondly, the unit is able to provide balance in the ventilation. If the cooker hood does not run via the ventilation system and if the house is new and airtight, use of the cooker hood will create a underpressure in the dwelling, minimising the suction effect from the cooker hood and also creating smoke problems, for instance if a wood-burning stove or open fire is installed and in use. By running the cooker hood via the ventilation system, the unit can increase the supply air as the volume of extract air from cooker hood operation goes up. In this way, a balance can be maintained in the dwelling, and the cooker hood will retain its full suction power. In the case of ventilation of a large dwelling/building, with more than one bathroom, there may be problems creating sufficient air capacity for the cooker hood. In these cases, an EM box will be an ideal addition, as it minimises the extract air from the other high-humidity rooms for the short period that the cooker hood is in use, and in this way ensures sufficient air for extraction via the cooker hood. If the cooker hood is connected to the ventilation system, it is important that it is fitted with a good grease filter and that this can be regularly cleaned. User selection 1 User selection 2 EM box The potential free contact for the cooker hood is connected to User selection 1 or 2, which are programmed in the unit's software under the section General settings. User selection 2 is chosen if an EM box is to be installed. 23

24 Other electrical connections User selection 1 It is possible to override the unit's functions via an external signal from a potential free contact. The User selection function can be used for many purposes, e.g. in the case of a wood burning stove or open fire. Initial settings of the ventilation system set up a small underpressure, so that humidity in the air is not forced into building parts. This is naturally a disadvantage when lighting a wood burning stove, as smoke will enter the room. By means of an potential free contact, one of the fan speeds, e.g. fan speed 4, can be set to run with a slight overpressure instead, so the smoke goes up the chimney as it should. Connection to CTS700 control system: Potential free contact User selection 1 is programmed in the unit's software under General settings. See the options in the Software instructions. 24

25 Compact P / Compact P Polar - EK (English) BY NILAN User selection 2 As with User selection 1, it is also possible with User selection 2 to override the unit's functions via an external signal from a potential free contact. The difference is that by activating User selection 2, the control system also transmits an output signal. User selection 2 has the higher priority and is therefore used for cooker hood operation if a cooker hood is connected to the ventilation system. Normally fan speeds 3 or 4 are set for cooker hood operation. The output signal can be used for connecting an EM box or external damper which is to assume a particular setting during cooker hood operation. There are many other uses for User selection 2 which we shall not discuss further in these instructions. Connections: Potential free contact Output signal 25

26 External room temperature sensor Do you not want to control the unit according to a room temperature measured through the T3 extract air, an external room temperature sensor can be connected.. The room temperature sensor is placed in the room, which should be the reference for the house. Fire protection A fire thermostat or external fire automatic can be connected. It must be a joined signal, when it is broken the Compact P register it as a fire and stop the unit. Note! If the unit is connected to external fire automatic, you set the software: General Settings/ Service/Auto reset for external fire alarm to "On". 26

27 Compact P / Compact P Polar - EK (English) BY NILAN Common alarm If the unit is located in a place where access is poor or infrequent, and if the control panel is also located here, it may be hard to observe any alarms. An external alarm in the form of a light or acoustic signal, etc., can be connected to the unit. External heat supply Compact P is able to control an external room heating such as electric radiators or a floor heating system. The room temperature is monitored by the Compact P, which block the external heating supply when there is no need for heating. If Compact P cannot achieve the desired room temperature through the ventilation, the external heating supply is released until the room temperature is in the desired level. The external heat supply is connected via relay 8, and set in the touch-display under the menu: Ventilation-/Temperature regulation A maximum effect of 500W can be connected (Compact P Polar need to have a transfer relay mounted). 27

28 Connecting EHD damper To conduct outdoor air down through a geothermal pipe in the ground makes good sense. The air is heated during the winter and cooled in the summer by the ground. But passing outdoor air through such a geothermal system may not be the best idea in the spring and autumn, but taking it directly through a roof vent is recommended. The CTS700 control system has a built-in function that measures whether the geothermal pipe or roof vent provides the best option for air intake. It measures the outdoor temperature during a stabilising period from the geothermal pipe and roof vent respectively. The measurement indicates where it is best to direct the outdoor air. CTS700 sets the EHD damper to the best option, and continues ventilation for a set period, referred to in the program as holding time. The EHD damper is connected via relay 7 and set on the display menu item: Ventilation / Frost protection or de-icing / Frost protection. EHD Damper, geothermal pipe and roof vent are not supplied by Nilan. When using a geothermal pipe, the "Low ventilation a low outdoor temperature" feature cannot be used. 28

29 Compact P / Compact P Polar - EK (English) BY NILAN BAH Geothermal heater A geometric preheater has two functions: 1. It acts as frost protection in the winter, heating up the outdoor air and protecting the unit against icing up 2. It can then be used to cool down outdoor air in the summer, supplying cooled air to the home The heater is set on the display under: Ventilation/frost-protection or de-icing 18 T Pdiff. 14 T8 11. Condensation drain 12. Shut-off valves 13. Particle filter 14. Filling and drain cocks 15. Safety valve 16. Bleed screw 17. Expansion tank 18. Pressostat 19. Circulation pump T8. Outdoor temperature sensor Circulation pump, heater and brine circuit are not supplied by Nilan. 29

30 Plumbing Condensation drain Important information Compact P is supplied with a reinforced 20 mm condensation drain pipe with built-in water lock. Install the condensation drain with an even slope of minimum 1 cm per metre to the nearest drain. The overflow from the safety valve to the cold water supply must be piped to a visible drain. If the unit is placed outside the building, the condensation drain must be protected against icing up. The fitter is responsible for ensuring that the unit is protected from freezing. The connection of the water lock must be airtight to prevent air being sucked into the unit, trapping condensation in the unit. Ehen the condensation overflows the tray and runs out of the unit, damages must be expected. After fitting the water trap, you must test the function in the following way: Fill the condensate tray with water. Start up the unit at highest fans speed, and allow it to run for several minutes. After that control that no water is left in the condensation tray (the unit must be connected to the duct system, and the lid must be on during the test). The water trap can dry out, preventing water to run out from the unit condensation tray. Control the water trap in regular intervals, especially after the summer and top up with water if needed. The water trap is integrated in the pipe running from the condensation tray to the drain. 30

31 Compact P / Compact P Polar - EK (English) BY NILAN Hot water tank Connection overview Compact P front Compact P back Connections: 1. Connection for 3/4 circulation pipe 2. Hot water outlet 3/4" 3. Cold water intake 3/4" 4. Return supplementary coil 3/4" 5. Supply supplementary coil 3/4" Supplementary coil is only standard on Compact P SOL models. The coil is located in the bottom, and has an external diameter of 22 mm and is 8,500 mm long, equivalent to 0.6 m 2. Connection All work must be performed by qualified personnel and in accordance with relevant legislation and provisions. Nilan's hot water tanks are double-enamelled, ensuring long life. The efficient foam insulation protects against unnecessary heat loss. All connection nozzles for water have 3/4" thread and are located in the tank bottom. The tank is also fitted with an electronically-monitored sacrificial anode that automatically displays a warning on the display when it needs changing. 31

32 CAUTION Changing the anode when notified on the display is important. Failure to do so can cancel the guarantee on the hot water tank. The tank is fitted with a 1.5 kw supplementary electrical heater deactivated by default and activated via the control panel if required. The supplementary heating must not be activated before the water tank is full of water. Hot water circulation If wished, hot water circulation can be established by fitting a non-return valve and a circulation pump for domestic water to the tank's circulation connector (1). If hot water circulation is not established, the connector must remain closed with the factory-mounted shut-off plug. Hot water circulation can lead to a significant heat loss in the pipes, diverting a good proportion of the heat pump's output. To avoid this, circulation pipes and the hot water loop must be insulated with at least 30 mm mineral wool. It is advisable to set a timer so that the circulation pump is not running constantly. Solar coil All Compact P SOL models have integral supplementary coil, see connections list. The solar coil with a surface area of 0.6 m 2 is intended for solar heating systems, though it can also be connected to other heat sources. If a solar collector or other heat source is connected to a Compact P model, it is recommended that a safety group is connected to the hot water outlet to secure against scalding. Softened water If it is wished to soften water with salt in a Nilan hot water tank, the following must be observed: The hardness of the water must be at least -2 dh (proportion of alkaline earths 0,4 mmol/l) The conductivity must be between 13 ms/m og 150 ms/m (millisiemens per m) The ph value must be between 6.5 and 9.5 The chlorine content must be under 250 mg Cl/l If the above criteria are exceeded, the anode current will be too high, the anode will break down too quickly and the water will begin to smell bad. CAUTION Demineralised water (double ion exchange) must not be used as the tank will corrode very rapidly. Demineralised water is also called totally desalinated water and deionised water. 32

33 Compact P / Compact P Polar - EK (English) BY NILAN Central heating Connection overview electric boiler Expansion tank12l 2. Electric boiler 3. Manometer (central heating) 4. Safety valve (flow) 5. Cirkulationspump (return) 6. Stop valves 7. Filling cock 8. Temperature setting 33

34 Waterconnection electric boiler Flow central heating 2. Return central heating Pipe diagram 1. Connection 3/4" 2. Shutoff valve 3. Cirkulation pump 4. Feed cock 1/2" 5. Electric boiler (3/6/9 kw) 6. Expansion tank 12 L 7. Automatic vent 8. Temperature sensor 9. Manometer 10. Safety valve 2,5 Bar 11. Particle filter (not a Nilan delivery) 34

35 Compact P / Compact P Polar - EK (English) BY NILAN Check list for the central heating system prior to start-up The check list is used when starting and delivering the system, and it should always be filled in. See the other sections in the manual for further information Electrical connection and control Checked - date Notes The power supply is connected and secured in accordance with the wiring diagram and manual The control panel is installed in a place that can easily be seen by the user Central heating circuit Checked - date Notes The central heating circuit is sealed The central heating circuit has been vented after filling Central heating circuit pressure, overpressure The opening pressure for the central heating circuit s safety valve is correct The circulation pump is rated correctly for the installation The circulation pump is in constant operation or is controlled by the electric boiler Bar 35

36 Plumbing connections for accessories Safety group CAUTION A safety device must be connected to the hot water tank. When water is heated to 60 C, it expands by 2%. A pressure tank could burst without a safety valve keeping excess water out. The safety valve should therefore drip during warming up. Installation: The following should be remembered during installation: a. The double nut is attached to the water heater s cold water pipe so that the arrows are pointing in towards the water heater (in the direction of the flow). The joint with the water heater is sealed using a threaded washer. b. The joint between the double nut and the system is sealed using fibre packing. c. The rubber ring seal (the O-ring) is fitted to the unit so that it can function as a seal between the safety valve and the unit in such a way that the valve is locked. The end of the overflow pipe must be visible, and it must be able to run out safely via the drain. As water expands as it heats up, the safety valve will drip. It is up to the installation engineer to tell the customer where the safety valve is and how it works, and also that it must be regularly checked at least twice a year in order to prevent incrustation. 36

37 Safety group with anti-scald protection Compact P / Compact P Polar - EK (English) BY NILAN The control system contains as standard a temperature limit for domestic hot water of 65 ºC. This setting prevents users from scalding themselves when the hot tap is turned on. It also means that when Compact P is in cooling mode, cooling will stop when the domestic hot water reaches a temperature of 65 ºC. If the cooling requirement is higher than this, the temperature limit may be raised to 80 ºC, but in this case an anti-scald device must be mounted under the hot water tank, to prevent users from scalding themselves when turning on the hot tap. The anti-scald device mixes hot water with cold water, thus bringing down the temperature and avoiding scalding. This will extend the period for which Compact P can perform cooling. CAUTION If a solar panel is connected to the hot water tank, an anti-scald device must be mounted Hot water from the hot water tank 2. Cold water to the hot water tank 3. Stop cock cold water 4. Pressure relief valve (6 bar or 10 bar) 5. The overflows from the safety valve are led to a prominent drain 6. Cold water supply 7. Domestic hot water for the dwelling 8. Mixing valve for domestic hot water for the dwelling (can be set between ºC) 37

38 Hot water heater (accessory) CAUTION Connection of the hot water heating element must be carried out by an authorised plumber. CAUTION If the control unit is installed outdoors or external to the building, it must be protected against frost. The heater is for duct connection, and cannot be integrated into the control unit. The heater is supplied as an accessory and consists of: Heating element with temperature sensor T9 and frost thermostat B3, actuator, regulator valve and autotransformer. Must be activated via the control system. The system should be connected, bled and checked for leaks. The system can then be started. Check and clean the sediment trap after flushing the system appropriately. Supply Return 1. Water heater 2. Actuator and regulation valve: Danfoss AME 140/24V 0-10V signal, 2-way valve VZ2 Kv0,4 (supplied by Nilan) Kvs-value MUST be checked compared to the supply. Differential pressure: bar At a supply temperature of 60 C, a cooling effect of 20 C over the heater is calculated at maximum heat output. 3. Bleed valve (not supplied by Nilan) 4. Snavsopsamler (ikke Nilan leverance) 38

39 IMPORTANT, concerning Danfoss Actuator type AME 140: Mandatory procedure for refitting the actuator: 1. Disconnect from mains electricity. Remove actuator cover. 2. Disengage the gear by holding the button under the housing in while screwing the spindle upwards as far as it will go (counter-clockwise) 3. Fit actuator and reconnect mains electricity. 4. Switch DIP switch no. 1 to ON and then OFF. 5. Automatic calibration will run for up to 6 minutes. (The diode will flash during calibration before becoming constant). 6. Fit actuator cover. Compact P / Compact P Polar - EK (English) BY NILAN Output chart, hot water heater Water side Air side Temperature supply/return Flow Pressure loss Output Air volume Temperature before HWH* Temperature after HWH* Pressure loss over HWH* [ C] [m 3 /h] [kpa] [kw] [m 3 /h] [ C] [ C] [Pa] 0,04 0,85 0, ,1 2 0,06 1,25 0, ,8 3 40/30 0,08 2,18 0, ,1 6 0,11 4,65 1, ,7 17 0,17 9,62 1, ,2 53 0,19 11,9 2, ,5 77 0,04 0,69 0, ,5 2 0,05 1,00 1, ,1 3 60/40 0,07 1,75 1, ,0 6 0,10 3,70 2, ,5 17 0,16 7,66 3, ,1 53 0,18 9,48 4, ,8 77 0,03 0,40 1, ,0 2 0,04 0,58 1, ,2 3 70/40 0,05 1,00 1, ,5 6 0,08 2,09 2, ,3 17 0,11 4,25 3, ,3 53 0,13 5,24 4, ,8 77 *(HWH) hot water heater 39

40 Ventilations mounting Duct system Legislation All work must be carried out by qualified personnel and in accordance with applicable legislation and regulations. Ducts There are two systems for transporting air round the building. Spiral tubes Spiral tubes are metal ducts which are cut to size with an angle grinder, screwed together with bends and manifolds and laid out in accordance with the working drawing. The duct pipes are typically laid at the rafter ends and fixed with perforated band or suspended with suspension band. Avoid unnecessary bends in the ducting. To avoid noise transmission, where sound is transmitted from room to room, a sound damper must be mounted in each room. The ducts must be insulated to avoid heat loss and condensation. In some cases this can be avoided if the ducts are led through the ordinary insulation or inside the climate screen. NilAIR tubes NilAIR tubes are a flexible system which is easy to mount. The tubes are easily cut to size with a hobby knife and laid according to the working drawing without use of bends and manifolds. A manifold box is installed after the unit and the tubes run from this out to the various rooms. With NilAIR tubes it is unnecessary to mount sound dampers in each room, as there is no risk of noise transmission. If the tubes are led outside the climate screen they must be insulated to avoid heat loss and condensation. This is easier than with spiral tubing, as NilAIR tubes are easier to lead through ordinary insulation. NilAIR tubes are more flexible than spiral tubing and can therefore be laid in places where ordinary spiral tubing would be impossible. Unit Nilan recommends mounting a flexible connection between the unit and the duct system. This is to avoid oscillations from the unit being transmitted to the duct system, but also to ease future servicing where it is necessary to move the unit. Nilan offers flexible silicing, which, apart from providing a flexible connection between the unit and the duct system, also dampen the passage of sound from the unit to the duct system. Flexible silencing are insulated for condensation, but it may be necessary to insulate them further to meet local requirements for duct system insulation. 40

41 Compact P / Compact P Polar - EK (English) BY NILAN Extract air Exhaust valves are mounted in the moisture-generating rooms and strategically placed where they can extract the moisture air most effectively. Moisture-generating rooms: Bathroom Toilet Kitchen Utility room Supply air Supply air valves are mounted in habitable rooms and strategically positioned to give the minimum annoyance. For example, it is not recommended to mount incoming air valves over areas where people sit, as the air in some cases can be perceived as a draught. Habitable rooms: Living room Kitchen-living room Bedroom Office Roof stack The roof inlet and outlet must be positioned and designed to limit pressure fluctuations in the ventilation system caused by wind impact, and also to prevent access by birds and other animals, and to ensure that the inlet and closed duct system are kept free of plant parts and foreign objects. The air inlet must be located to minimise the risk of short-circuiting from the discharge air, having regard to the prevailing wind direction. The air inlet should be placed a minimum of 0.5 m above the roof surface, but a minimum of 1 m over flat black roofs up to the underside of the inlet, to ensure that warm air is not drawn into the building in the summer. The air inlet should be located on the north or east sides of pitched roofs. Sound damping should also be mounted between the unit and roof stacks to avoid noise annoyance to neighbours. 41

42 Initial regulation Important information For the ventilation system to operate optimally, it is important that initial regulation is carried out correctly. We recommend having this done by experts. It is important to measure the total supply (inlet) air and extract (outlet) air. The system must have a minimum vacuum, i.e. it must draw in more air out than in, to avoid humidity being pressed into the building construction. Initial regulation connectors The unit has initial regulation connectors for measuring the supply air (inlet air) and extract air (outlet air) volumes. The graph can be used for roughly setting the main air volume for dry operation without condensation precipitation, and with approximately the same temperature for outdoor air and extract air. On the extract air side (outlet air), the pressure drop dp4-3 [Pa] is measured between the connectors labelled 3 and 4. The air volume qv [m3/h] is read off on the graph. On the supply air side (inlet air), the pressure drop dp2-1 [Pa] is measured between the connectors labelled 1 and 2. The air volume qv [m3/h] is read off on the graph. The capacity in the pressure drop diagram is based on a dry heat exchanger. Pressure fall diagram The measuring connectors are inside behind the top front panel. 42

43 Troubleshooting Domestic hot water Compact P / Compact P Polar - EK (English) BY NILAN Errors and solutions domestic hot water Problem Possible cause Solution The unit produces insufficient domestic hot water The filters may be blocked so that insufficient air is reaching the unit. This can occur if the filters are not changed frequently enough. This can occur if the unit has been operated during the building process and the filters are filled with dust and dirt. Change the filters and, if necessary, change the filter change period to a shorter interval. 43

44 United Kingdom: S L Services 25 St Leonards Road, Horsham RH13 6EH West Sussex Tlf. +44 (0) stuart315@aol.com Ireland: Nilan Ireland Ballylahive, Abbeydorney Tlf (0) maurice@nilan.ie Nilan A/S Nilanvej 2 DK-8722 Hedensted Tlf Fax nilan@nilan.dk Document no.m32_compact-p-ek_dk Nilan A/S is not liable for any faults or deficiencies in printed guides. Moreover Nilan A/S is not liable for loss or damage as a result of the printed material, regardless of whether the loss or damage is due to faults or inaccuracies in the material, or any other cause. Nilan A/S reserves the right without warning to make changes to products and guides. All trademarks are the property of Nilan A/S and all rights are reserved.