Installation instruction

Transcription

1 Installation instruction CTS 600 by Nilan VP 18 10P Version: 5.03,

2 Contents Contents... 2 List of figures... 2 Before starting... 3 Electrical connection... 4 VP 18-10P installation... 5 Condensation outlet/water trap... 6 Water connection... 7 Duct connection... 8 Start-up and configuration of CTS 600 controls... 9 Startup... 9 CTS 600 configuration Activating the SERVICE menu Inlet heating Hot water Air exchange Defrost Temp. control Inlet control Room control Restart Preset Manual Fault finding Maintenance Energy saving advice Accessories/spare parts List of figures Figure 1: CTS 600 control panel... 4 Figure 2: Sketch of VP 18-10P... 5 Figure 3: Suggested design of water circulation system... 7 Figure 4: CTS 600 control panel Figure 5: Service menu options Figure 7: The Inlet heating menu Figure 8: The Hotwater menu Figure 9: The Air exchange menu Figure 10: The Defrost menu Figure 11: The Temp. control menu Figure 12: The Inlet control menu Figure 13: The Room control menu Figure 14: The Restart menu Figure 15: The Preset menu Figure 16: The Manuel menu... 20

3 Before starting Please check that the following documents have been supplied with the unit: - Installation instructions (this manual) - Operating instructions for CTS 600 controls - Wiring diagram Should you have any questions on how to operate the system, contact your nearest Nilan dealer, who you can find at VP 18-10P is a heat recovery ventilation system with a capacity of up to 330m 3 /h at 100Pa external counter pressure. The energy of the exhaust air is transferred via a heat pump to a 180L hot water tank as first priority and to the inlet air as second priority. The system can be equipped with G4 duct filter. Other optional extras are also available, including hygrostat and pollen filter unit. The system is operated via CTS 600 controls offering a wide range of functions, including menubased operation, weekly programming, timed filter alarm, fan speed adjustment, etc. The CTS 600 controls are described in a separate manual supplied together with the system. For details of spare parts and accessories, see page 24. VP 18-10P is supplied in a white Aluzink cabinet, fully tested and ready to operate. Installation and start-up must only be performed by a qualified electrician. Subject to alterations Page 3 of 24

4 Electrical connection 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 system is supplied with a 1m test cable for the CTS 600 control panel. The control panel must be connected to the CTS 600 controls using twisted pair cable type 2x2x0.25mm 2 (max. length 50m). The CTS 600 control panel should be installed in a dry, frost-free location. A temperature sensor built into the control panel prevents further cooling of the building should the primary heating system fail by switching the ventilation system off if control panel temperature falls below a preset level. (The default setting is 10 C, but any temperature between 1 C and 20 C can be set.) Figure 1: CTS 600 control panel Subject to alterations Page 4 of 24

5 ULN V~T1T1230V~230V~UserselectOverheathermostatTank-sensorTopTank-sensorBotom VP 18-10P installation When installing the unit, it is important to take future service and maintenance into account. There should be a minimum clearance of 600mm in front of the unit, measured from the VP 18-10P front panel. 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). The unit must be installed and levelled on a firm, vibration-free surface. There should be at least 30mm 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 adjoining parts of the building. It is important that the condensation outlet of the VP 18-10P 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 drain. If VP 18-10P is enclosed by any covering, it must be possible to remove the covering easily. Figure 2: Sketch of VP 18-10P Subject to alterations Page 5 of 24

6 Condensation outlet/water trap VP 18-10P 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 1cm/m to the nearest drain. The safety valve overflow must also be led to a drain. In order to prevent ice formation, it may be necessary to equip the condensation outlet with a heating cable where frost is possible (see Accessories/spare parts page 26.) Protecting the condensation outlet from frost is the responsibility of the fitter. Subject to alterations Page 6 of 24

7 Approx. 80cm Water connection In order to prevent ice formation, it may be necessary to equip the condensation outlet with a heating cable where frost is possible (see Accessories/spare parts, page 26.) Protecting the condensation outlet from frost is the responsibility of the fitter. 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 3/4 sleeve. All water pipes are connected to the bottom of the unit, see figure 2 on page 5. If required, hot water circulation can be established by fitting a non-return valve to the recirculation connector of the tank after inserting a 80cm long circulation pipe (optional accessory) into the tank. See figure 3 below. If hot water circulation is not required, the connector and fitted blanking plug should be left untouched. Hot water circulation may result in considerable heat loss within the piping system. A large proportion 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 material. Ca. 80 cm PEX Cirkulationspexrør circulation pipe Sacrificial Offeranode anode Non-return Kontraventil valve Circulation Cirkulationspumpe Figure 3: Suggested design of water circulation system Subject to alterations Page 7 of 24

8 Duct connection Ducting and fittings with rubber seals of tightness class B are recommended. It is also advisable that all duct connections to VP 18-10P be made with approx. 1m of soundproofed flex tube in order to dampen sound emission. Ducting should be cut to length using a hacksaw or angle grinder and laid in accordance with the design drawing. Ducting is usually either attached to rafter feet using perforated strip or suspended in fitting strip. Avoid pinching the ducting in any way and any unnecessary bends. The ducting must be insulated. Sometimes, standard loft insulation can be used for the purpose. All ducting should be insulated with 100mm mineral wool to prevent heat loss and condensation. Such insulation requirements also apply to soundproofed flex tubing. It is recommended that two layers of 50 mm insulating material be used. If ducting is installed in an unheated room, it is inadvisable to switch the system off for prolonged periods as air from heated rooms will rise into the ducting and condensate, thus possibly causing moisture problems. Loft insulation material Ducting Granulate The discharge duct leads the exhaust air (from which the system has recovered the energy it contained) to the outside through the roof or outer wall. It is important that the roof stack or wall grille has at least the same area as the duct immediately ahead of the stack or grille. Any contraction will cause unnecessary pressure drop, which may reduce ventilation capacity. Holes for inlet and exhaust valves should be cut to fit the frame of the valve concerned. Secure the valve frame in position using screws and then attach the valve. Where the valves should be positioned depends on room design and use. It is, for example, inadvisable to install inlet valves immediately above where people usually sit as inlet air may sometimes be perceived as a draught. Subject to alterations Page 8 of 24

9 Start-up and configuration of CTS 600 controls Startup Once all connections have been checked, check that the tank is full of water. To do so, open the hot water tap. Open ceiling valves, ensuring that valve cone is level with front edge. Subject to alterations Page 9 of 24

10 CTS 600 configuration This section describes the SERVICE menu of the CTS 600 controls. For instructions on everyday operation of the CTS 600 controls, please refer to the accompanying CTS 600 operating instructions. Activating the SERVICE menu On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls Figure 4: CTS 600 control panel Press and hold q and simultaneously for 10 seconds. The SERVICE menu can then be accessed. Press q repeatedly until SERVICE appears on the display. Press to activate the SERVICE menu. It is then possible to scroll through the SERVICE menu options using the pq buttons. The options available on the SERVICE menu are shown in the figure below. SERVICE HEATING page 11 HOTWATER page 12 AIR EXCHANGE page 13 DEFROST page 14 TEMP. page 15 page 16 ROOM page 17 page 18 page 19 page 20 Figure 5: Service menu options Subject to alterations Page 10 of 24

11 Inlet heating On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING SELECT ON ON or HOTWATER INTEGRAL TIME 10 Can be set from 0 to 25. AIR EXCHANGE DEFROST TEMP. ROOM MANUEL Figure 7: The Inlet heating menu Subject to alterations Page 11 of 24

12 Hot water The HOT WATER menu allows the status of the supplementary electric water heater to be displayed on the main menu. When the supplementary heater is set to ON, a W will be displayed in the upper right-hand corner of the main menu when the heater is active. Options that flash are indicated by On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING EL SUP HOTWATER EL SUP ON EL SUP ON A weekday can be chosen, where the AIR EXCHANGE DEFROST LEGIONEL PRIORITY 5" C LEGIONEL MON LEGIONEL warmed up to 65 C between and o clock. TEMP. PRIORITY 5" C fuction is not active. ROOM Temperature for prioritizing the hot water. (All energy in the exhaust air is delievered to the hot water). The setting is suptracted to T12 (the temperature in the bottom of the hot water tank). Figure 8: The Hotwater menu Subject to alterations Page 12 of 24

13 Air exchange The AIR EXCHANGE menu allows four ventilation steps (air quantities) to be set. Individual values for inlet and exhaust can be set for each ventilation step. A minimum ventilation step for inlet air and minimum and maximum steps for exhaust air can also be set. It is also possible to stipulate a delay from system startup to fan start in order to allow the shut-off damper time to open. On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING The lowest permissible ventilation step for fresh air/inlet (0-2) HOTWATER AIR EXCHANGE MIN 0 The lowest permissible ventilation step for outlet/exhaust (1-2) DEFROST TEMP. EXHAUST MIN 1 EXHAUST MAX 4 The highest permissible ventilation step for outlet/exhaust (3-4) >1< 25% ROOM >2< 45%.. >3< 70% >4< 100% EXHAUST >1< 25% Each ventilation step can be set as a percentage of maximum fan speed. EXHAUST >2< 45% EXHAUST >3< 70% EXHAUST >4< 100% Figure 9: The Air exchange menu Subject to alterations Page 13 of 24

14 Defrost The DEFROST menu determines the mode of system operation while the evaporator surface in the exhaust air flow is being defrosted. Options that flash are indicated by On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER Low running inlet during defrost AIR EXCHANGE User inlet during defrost AIR EXCH LOW DEFROST AIR EXCH USER AIR EXCH USER TEMP. BYPASS OPEN BYPASS OPEN AIR EXCH BYPASS Stop inlet during defrost ROOM Figure 10: The Defrost menu Subject to alterations Page 14 of 24

15 Temp. control The temperature sensor to be used to control the system is selected in the TEMP. menu. It is also possible to stipulate a minimum temperature at which the system is to be stopped to prevent further cooling of the building if the primary heating system has cut out for some reason. Options that flash are indicated by On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER AIR EXCHANGE Determines the sensor to be used for control purposes: PANEL: T15 (in control panel) EXTERNAL: T10 (Duct sensor) The ROOM LOW follow the selected sensor T10 DEFROST TEMP. ROOM SENSOR PANEL PRIORITY HP ROOM LOW 10 C EXTERNAL -1 C Option for an extra heating element via relay output, R9. R9 is an accessory and the option is only possible via accessory pcb. The temperature is added or subtracted to/from the set point shown in the main menu. SENSOR PANEL PRIORITY HP PRIOR. : ventilation without heat pump. VP: ventilation with only heat pump active. Stops the system at this room temperature (20-1 C, -- indicates that the function is inactive). The -- setting should be used if the control panel is installed in a cold location. Figure 11: The Temp. control menu Subject to alterations Page 15 of 24

16 Inlet control The menu allows the inlet air temperature controller to be set. Options that flash are indicated by Parameters in the menu should only be set by experienced control technicians. (For details on restoring default factory settings, see page Fejl! Bogmærke er ikke defineret..) On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE CENTRAL HEATING HOTWATER AIR EXCHANGE DEFROST TEMP. HEATPUMP RST 6m ROOM The minimum length of time (in minutes) the compressor must be stopped before restarting. Figure 12: The Inlet control menu Subject to alterations Page 16 of 24

17 Room control The ROOM menu allows the room temperature controller to be set. Options that flash are indicated by Parameters in the ROOM menu should only be set by experienced control technicians. (For details on restoring default factory settings, see page Fejl! Bogmærke er ikke defineret..) On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER AIR EXCHANGE DEFROST TEMP. Heat demand: Neutral Zone for start and stop of the evaporator: Desired room temperature (21 C) + N-ZONE (2 C) = 20 C for start of the evaporator, 22 C for stop of the evaporator ROOM N-ZONE 2,0 C Can be set from 0,5-10 C. Cool demand: Start of evaporator: desired room temperature (21 C) + Cooling menu (SET +5 C) = 26 C. Stop of evaporator: 26 C - ½ N-ZONE (2 C) = 25 C Figure 13: The Room control menu Subject to alterations Page 17 of 24

18 Restart The menu allows the system to be set to restart automatically in connection with high or low pressure faults. Options that flash are indicated by The HP/LP setting in the menu must not be used during normal operation. On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER AIR EXCHANGE DEFROST TEMP. ROOM This setting must never be used during normal operation. Indicates that the system is to be restarted automatically in connection with high or low pressure alarms. HP/LP Indicates that the system will not be restarted automatically in connection with high or low pressure alarms. Figure 14: The Restart menu Subject to alterations Page 18 of 24

19 Preset The menu allows default factory settings to be stored. Options that flash are indicated by On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER AIR EXCHANGE DEFROST TEMP. ROOM When standard is chosen all factory settings are reset. An eventual supplementary heating surface must be re-activated. A heating surface is NOT frost-protected until it is correctly installed and activated in the service menu. STANDARD Figure 15: The Preset menu Subject to alterations Page 19 of 24

20 Manual The menu allows system functions to be tested manually. Options that flash are indicated by On the CTS600 control panel, press: - ESC to return to the previous menu - qp to scroll upwards or downwards through the menus or to adjust the setting of an activated menu option - to activate a menu option - to confirm a menu option setting - switch off the controls - ON to switch on the controls SERVICE HEATING HOTWATER AIR EXCHANGE DEFROST MANUEL WTR HEAT Manual test of hot water production 1000W TEMP. MANUEL VEN+HEAT Manual test of ventilation and heating VENT+CPR Manual test of ventilation and compressor ROOM KONTROL EXHAUST Manual test of exhaust DEFROST Manual test of inlet Manual test of defrost function Manual test inactive (during normal operation) Figure 16: The Manuel menu Subject to alterations Page 20 of 24

21 Fault finding If problems arise during operation, please check the following before calling the service centre. Check whether the alarm LED on the front of the CTS 600 control panel is flashing. If so, investigate the cause of the alarm and remedy the fault. If necessary, contact your local service centre. For details of alarms and how to reset them, please refer to the operating instructions for the CTS 600 controls. - VP 18-10P is operating but with reduced output. Check that sufficient air is being supplied to VP 18-10P. Check filters for excessive dirt accumulation. Check that valves are sufficiently open. In 98% of cases, the fault is caused by clogged filters. If necessary, increase ventilation step. Any dampers to the open air should be shut at outdoor temperatures lower than 6 C. - VP 18-10P is operating but there is no hot water. Check whether the tank has been emptied of hot water. If the system is equipped with a circulation pump but the circulation circuit has not been insulated, considerable heat loss may result, significantly reducing VP 18-10P capacity. Has the required water temperature (T12) been set correctly in the CTS controls? Usually, water temperature should be set to between 45 and 55 C. Please refer to the CTS 600 operating instructions for details on checking and setting water temperature. If the Air exchange menu is set to COMFORT it is necessary that the temperature of the supplementary electrical heating element is set to minimum 50 C. Is the air supplied too cold or the quantity supplied too low? Check filters and valves. Check whether duct insulation is sufficient and complete. - VP 18-10P is not operating. Check whether a fuse has blown. Check whether the hot water safety thermostat (D in figure 2 on page 5) has cut out. If it has, press the button and the thermostat will cut in again once the water temperature has dropped C. If the thermostat continues to cut out, contact your local service centre. Subject to alterations Page 21 of 24

22 Maintenance Every 3 months: - Clean T-filter and replace when necessary. Usually, the filter should be replaced once a year. The filter alarm of the CTS 600 controls can be used to keep track of filter service intervals. For further details, please refer to the CTS 600 operating instructions. At least once a year: - Check the sacrificial anode (see figure 3 on page 7). It should be replaced if more than half of it has corroded away. Failure to replace the sacrificial anode may cause the tank itself to corrode. - Check the air inlet for blockages and clear if necessary. - Check evaporator surface and clean if any deposits have formed. - Check that condensation forming on the evaporator surface can be freely drained through the water trap and condensation outlet. - Check hot water tank safety unit (see "Accessories/spare parts"). - We recommend that a service agreement be made with the fitter. Subject to alterations Page 22 of 24

23 Energy saving advice - Use the "Energy" setting in the VENTILATION menu of the CTS 600 controls. For further details, please refer to the CTS 600 operating instructions. - Keep domestic hot water at a relatively low temperature. Try 45 C for example. - Disconnect supplementary heating, and use it only when there is exceptional demand for hot water. For further details, please refer to the CTS 600 operating instructions. - Keep fan speed as low as possible. - Avoid recirculating hot water. - Distribute bath times throughout the day as VP 18-10P requires 6-7 hours to heat the 180L of water in the tank. - Insulate ducts in accordance with instructions. - Never use cooling in winter. Subject to alterations Page 23 of 24

24 Accessories/spare parts - Safety unit, including mixer valve with scald control. Item no Statutory safety equipment which must be fitted to the hot water tank. The user has an obligation to test its function at least once a year. To do so, press the handle and check that water emerges through the overflow pipe as a result. The unit consists of a safety valve and an adjustable non-return valve. The non-return valve functions as a stop valve (opens and closes water supply) and prevents return flow from the tank. Reduced hot water flow. - T-filter. Item no Use of this filter is highly recommended. If the filter is lacking, dirt in the system will result in reduced performance and service life, and dirt and dust will be introduced along with the inlet air. The filter is of class G4. - Loose filter. Item no Insulated pollen filter unit for installation in inlet duct. Item no Loose pollen filter. Item no Hygrostat. Item no Allows forced ventilation at high air humidities. Subject to alterations Page 24 of 24