Hoval Indoor Climate Systems Control systems

Transcription

1 Hoval Indoor Climate Systems Control systems Tailored control systems reliably ensure demand-based operation and maximum energy efficiency. Design Handbook

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3 Control Systems for Hoval Indoor Climate Systems Content Indoor Climate Systems Efficient. Flexible. Reliable. 3 A TopTronic C System control Control system for decentralised indoor climate systems comprising up to 64 control zones 7 B TopTronic C System control for TopVent (C-SYS) Control system for decentralised indoor climate systems comprising 1 control zone (only TopVent supply air and recirculation units) 19 C EasyTronic EC Room temperature controller without a timer for recirculation units and air curtains with EC fan 25 D EasyTronic ET Room temperature controller without a timer for recirculation units and air curtains with 2-speed fan 29 E TempTronic RC Programmable control system for TopVent gas units 31 F 1

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5 Hoval Indoor Climate Systems Content Hoval Indoor Climate Systems Efficient. Flexible. Reliable. A 3

6 Hoval Indoor Climate Systems Efficient. Flexible. Reliable. Efficient. Flexible. Reliable. Hoval indoor climate systems are decentralised systems for heating, cooling and ventilating halls for industrial, commercial and leisure applications. The systems have a modular structure. One system comprises several ventilation units which are spread around the room. These units are equipped with reversible heat pumps and gas-fi red heat exchangers for decentralised heat and cold generation, or they heat and cool with a connection to a central energy supply. Tailored control systems complete the system and ensure the effective combination and optimal use of all resources. Diverse range of units ensures flexibility Different types of ventilation units can be combined to create the perfect system for the project in question: RoofVent supply and extract air handling units TopVent supply air units TopVent recirculation units The number of supply and extract air handling units depends on how much fresh air is required in order to create a comfortable atmosphere for people in the building. Recirculation units cover additional heat or cool demand as required. A broad range of unit types and sizes with heating and cooling coils in various output levels means that the overall output of the system can be scaled to whatever level is required. Specially designed unit versions are also available for halls with particularly humid or oily extract air. Furthermore, there is a range of units available which have been expressly developed for very specifi c purposes. ProcessVent units, for example, are coupled with extract air purifi cation systems in industrial halls and recover heat from process air. Draught-free air distribution A key feature of Hoval indoor climate units is the patented vortex air distributor, known as the Air-Injector. It is controlled automatically and changes the blowing angle of the air continuously between vertical and horizontal. The highly effi cient air supply system has many advantages: It provides a high level of comfort during heating and cooling. No draughts develop in the hall. The effi cient and even air distribution ensures that the indoor climate units cover a large area. The Air-Injector keeps the temperature stratifi cation in the room low, thus minimising heat loss through the roof. Control with specialist expertise The TopTronic C control system, which was specifi cally developed for Hoval indoor climate systems, regulates the separate units individually and controls them based on zones. This enables optimal adjustment to the local requirements of the different usage areas in the building. The patented control algorithm optimises energy use and ensures maximum comfort and hygiene levels. Clear interfaces make it easy to connect the system to the building management system. Simpler control systems are also available for units that are only used for supply air or air recirculation. Competent and reliable Hoval will support you and provide expert knowledge throughout all project phases. You can rely on comprehensive technical advice when it comes to planning Hoval indoor climate systems and on the skills of the Hoval technicians during the installation, commissioning and maintenance of the system. 4

7 Hoval Indoor Climate Systems System overview System with decentralised heat and cold generation with heat pump A TopVent with heat pump RoofVent with heat pump TopVent with heat pump System with central heat and cold generation Water chiller TopVent RoofVent TopVent Boiler (e.g. UltraGas ) System with decentralised heat generation with gas-fired heat exchanger TopVent gas-fi red TopVent gas-fi red TopVent gas-fi red 5

8 Hoval Indoor Climate Systems System overview Unit types and control systems Heat and cold generation Function Unit type TopTronic System control TopTronic System control for TopVent EasyTronic EC EasyTronic ET TempTronic RC RoofVent RH Ventilation RoofVent RC RoofVent RHC RoofVent R TopVent MH Supply air TopVent MK TopVent MHK TopVent CAU Central TopVent DHV TopVent NHV TopVent DKV TopVent DHKV Recirculation TopVent CUM TopVent HV TopVent curtain TopVent TV TopVent TW Decentralised with heat pump Ventilation RoofVent RP Supply air TopVent TP Decentralised with gas-fired heat exchanger Supply air Recirculation TopVent MG TopVent GA TopVent DGV TopVent NGV TopVent GV 6

9 TopTronic C System control Content TopTronic C System control Control system for decentralised indoor climate systems comprising up to 64 control zones B 1 System structure Operating options Zone control panel Alarms and monitoring

10 TopTronic C System control System structure 1 System structure The Hoval TopTronic C control system works fully automatically to ensure the energy-efficient, demand-based operation of decentralised indoor climate systems comprising up to 64 control zones LAN 1 BACnet Modbus IP Modbus RTU Building management system Access to system operator terminal Zone control panel System operator terminal C-ST System bus Zone controller (max. 64 control zones) Zone operator terminal Zone bus Supply and extract air handling units with unit controller (or supply air units with unit controller) Recirculation units with unit controller Further zone control panel Fig. B1: System structure 1.1 Basic principles Indoor climate units that operate under the same conditions are grouped into control zones. The criteria concerning how the zones are created can be, for example, operating times, room temperature set values and so on. The individual units are individually regulated and controlled zone-by-zone: A unit controller is integrated in each indoor climate unit and controls it according to the local conditions. There is one zone controller for each control zone in the zone control panel. It switches the operating modes according to the calendar, sends the outdoor and room temperatures to the individual units, manages set values and functions as an interface to external systems. A system comprises up to 64 control zones with the following types of indoor climate units: Supply and extract air handling units (VENU) Supply air units (REMU) Recirculation units (RECU) The following variants of control zones are available: Type of units Max. number Supply and extract air handling units 15 Supply air units 15 Recirculation units 10 Supply and extract air handling units + Recirculation units 1) Supply air units + Recirculation units 1) ) The recirculation units are switched on depending on heat or cool demand. Table B1: Variants of control zones 8

11 TopTronic C System control Operating options 1.2 System bus The system bus connects all zone controllers to one another and to the system operator terminal. Cable type: Table B2: Specification of system bus 1.3 Zone bus Ethernet cable CAT5 The zone bus functions as serial connection and connects all unit controllers in one control zone with the corresponding zone controller. Cable type: J-Y(ST)Y mm Length: max m Plan repeaters and on-site power supply for longer lengths. Bus termination Terminate the zone bus at both ends with a 120 Ω, ¼ W resistor. Topology: Line Table B3: Specification of zone bus 2 Operating options 2.1 System operator terminal The system operator terminal is a touch panel with a colour display, making it simple and clear to operate the system. It gives trained users access to all information and settings that are necessary for normal operation: Display and setting of operating modes Display of temperatures and setting of the room temperature set values Display and programming of the weekly and annual calendar Display and handling of alarms and maintaining an alarm log Display and setting of control parameters Differentiated password protection The scope of delivery also includes the C-SSR software package for LAN access to the system operator terminal. Thus the system can be operated easily using a PC. The system operator terminal is installed in the door of the zone control panel, or supplied loose. At least 1 system operator terminal is required for each system. A maximum of 4 system operator terminals can be used per system or 1 per zone control panel. B Electrical supply: Power consumption: Communication: 24 V AC ( %) Hz, max. 1.3 A (27 VA) V DC ± 5% max. 1.0 A at 12 V DC max. 12 W via system bus (Ethernet interface) Table B4: Technical data of the system operator terminal Fig. B3: Dimensional drawing and borehole diagram for the system operator terminal (dimensions in mm) Fig. B2: System operator terminal C-ST 9

12 TopTronic C System control Operating options 2.2 Zone operator terminal The zone operator terminal is used for simple on-site operation of a control zone. It offers the following functions: Display of the current room temperature actual value Increase or decrease the set value by up to 5 C Manual changeover of the operating mode Display of the collective fault signal The zone operator terminal is installed in the door of the zone control panel, or supplied loose for surface or flush mounting in any location. 2.3 Operating selector switch An operating selector switch makes it possible to specify an operating mode manually for a control zone. Automatic mode according to the calendar is overridden. The units work in the selected operating mode until the switch is moved back to 'Auto'. The switches are installed in the door of the zone control panel. There is only 1 operating selector switch for each control zone. The operating modes available depend on the unit types present in the zone in question. Notice Operating selector switches installed in the panel door cannot be combined with operating selector switches connected to a terminal (see 3.8). 2.4 Operating selector button Fig. B4: Zone operator terminal The operating selector button makes it possible to specify a particular operating mode temporarily for a control zone. After an adjustable time period, the units switch back to the operating mode that was being carried out previously. 86 Notice The mode of function of the operating selector button can be set. The selected operating mode can also remain active until it is switched off again by pressing the button once more Fig. B5: Dimensional drawing for the zone operator terminal for surface mounting (dimensions in mm) The buttons are configured as illuminated pushbuttons. They are installed in the door of the zone control panel. There are a maximum of 3 operating selector buttons for each control zone: Standby (ST) Ventilation (VE) Recirculation (REC) There is also the option of connecting external operating selector buttons to a terminal (see 3.8) Fig. B6: Dimensional drawing for the zone operator terminal for flush mounting (dimensions in mm) 10

13 TopTronic C System control Operating options 2.5 Integration into the building management system The TopTronic C can be easily integrated into the building management system via different bus interfaces. The following protocols are available: BACnet Modbus IP Modbus RTU A full data point list is available on request. When planning observe the following: B BACnet Each control zone represents 1 node requiring 1 BACnet licence (BACnet instance). The following must be provided on site: an IP address range in the local area network for all bus participants 1 IP connection per control panel TopTronic C uses the following BACnet object types: BACnet object types Analogue Value Binary Value Integer Value Multi-state Value Table B5: Used BACnet object types Modbus IP 1 Modbus IP gateway RS485 is used for each control zone. The following must be provided on site: an IP address range in the local area network for all bus participants 1 IP connection per control zone Modbus RTU 1 Modbus RTU gateway RS485 is used for each control zone. The following must be provided on site: 1 Modbus slave address per control zone 11

14 TopTronic C System control Zone control panel 3 Zone control panel The zone control panel is made of painted steel sheet (colour: light grey RAL 7035). It includes the following components: Operating elements in the panel door Power and control section 1 safety relay (external) 1 fresh air sensor per system (included) 1 zone controller per control zone 1 room air sensor per control zone (included) Wall mounting (SDZ3 to SDZ6) Individual setup (SDZ7 to SDZ9) Caution Danger of electric shocks. Ensure that overcurrent protection equipment is installed on site for the power supply cable Cable run Cable duct Base Size Type Dimensions (W x H x D) Base height Doors 3 SDZ SDZ SDZ SDZ SDZ SDZ Table B6: Available sizes for the zone control panel (dimensions in mm) Short circuit resistance I CW 10 ka eff Use Indoors Protection class SDZ3, SDZ5, SDZ6 IP 66 Protection class SDZ7, SDZ8, SDZ9 IP 55 Ambient temperature 5 40 C Table B7: Technical data for the zone control panel 3.1 Design of the control panels Control panels sizes 3 to 6 are configured as compact cabinets for wall installation. The cables are introduced from below through flange plates and membrane cable glands. Control panels of sizes 7 to 9 are configured for individual setup in a self-supporting design. The cables are introduced through clamping profiles in the floor panel (cable introduction into the base is possible from the left or right side or from behind). Fig. B7: Design of control panels 3.2 Mounting height If the system operator terminal is installed in the door of the zone control panel the correct mounting height is essential for convenient operation. In control panels for individual setup the distance from the middle of the operator terminal to the floor is 1600 mm. Control panels for wall mounting must be mounted at the right height. The heights for the drill holes are given in the following table: 1600 B A C D Type SDZ3 SDZ5 SDZ6 A mm B mm C mm D mm Table B8: Distance of drill holes from the floor for convenient operation 12

15 TopTronic C System control Zone control panel 3.3 Location of the temperature sensors Install the fresh air sensor at least 3 m above the ground on a north-facing wall, so that it is protected from direct sunlight. Insulate the sensor from the building. Install the room air sensor at a representative position in the occupied area at a height of about 1.5 m. Its measured values must not be distorted by the presence of sources of heat or cold (machines, windows, etc.). Several averaging sensors can also be used. 3.5 Design for heating For systems with indoor climate units connected to a hot water supply for heating the components required to control the heating circuit are installed in the zone control panel: Heating demand Volt-free signal that reports the heating requirement to the heat production on site B 3.4 External connections Collective alarm Volt-free signal for the external display of a collective alarm Setpoint heating demand Analogue signal that reports the setpoint for the flow temperature to the heat production on site (2-10 V C) max. 250 V AC, 8 A AO GND AI Forced off (zone controller) Input signal for emergency switch-off via software control (all units in a zone): Fans off (without post operation) Dampers closed (by spring return) Recommended for emergency shut-off of the units with high priority (e.g. in the event of a fire) max. 250 V AC, 8 A 24 V AC, max. 1 A Fault heat supply Alarm input signal that informs the system that the heat supply is not working: 0 = Fault 1 = Normal operation Table B10: Signals for controlling the heating mode mode V DC 24 V AC, max. 1 A Forced off (ventilation unit) Input signal for emergency switch-off via hardware control (one unit): Fans off (without post operation) Dampers closed (by spring return) Recommended for emergency shut-off of the units with highest priority (e.g. in the event of a fire) 24 V AC, max. 1 A Table B9: External connections 13

16 TopTronic C System control Zone control panel 3.6 Design for cooling For systems with indoor climate units connected to a water chiller for cooling the components required to control the cooling circuit are installed in the zone control panel: There are various possibilities for changeover between heating and cooling: Automatic changeover (external enabling) The system switches between heating and cooling automatically, depending on the temperature conditions. Via an external signal either only heating operation or heating and cooling operation can be enabled. This way it is possible to block the cooling function temporarily e.g. in the transition period. For external enabling an optional switch can be installed in the door of the zone control panel (cooling lock switch). The system controls and monitors the changeover valves heating/cooling. Hydraulics 4-pipe 2-wire Heating/cooling change-over automatic (external enabling) automatic (external enabling) manual (external setting) Changeover valves controlled and monitored controlled and monitored manual, not monitored Table B11: Overview table of various possibilities for change-over between heating and cooling Cooling demand Volt-free output signal that reports the cooling requirement to the cold production on site Manual changeover (external setting) The system switches between heating and cooling according to the external setting. In case the external setting does not correspond to the actual requirement a protection mode is activated, if necessary, and alarm is generated (e.g. if cooling operation is set at very low outdoor temperatures). The system controls and monitors the changeover valves heating/cooling. Alternatively, the changeover valves heating/cooling may be set manually. In this case, however, the correct valve position cannot be monitored by the system. Fault cold supply Alarm input signal that informs the system that the cold supply is not working 0 = Fault 1 = Normal operation External enabling heating/cooling Input signal that reports on-site enabling of heating/cooling operation to the system: 0 = Heating 1 = Heating/Cooling max. 250 V AC, 8 A 24 V AC, max. 1 A External setting heating/cooling Input signal that reports manual switch-over to the system: 0 = Heating 1 = Cooling 24 V AC, max. 1 A 24 V AC, max. 1 A Changeover valves heating/cooling (1 x flow / 1 x return) Supply/control voltage: 0 V = Heating 24 V = Cooling V AC 0/24 V AC Position response via limit switches Table B12: Signals for controlling the cooling mode 14

17 TopTronic C System control Zone control panel 3.7 Design for heat pump For systems with indoor climate units which heat and cool with heat pumps, the components required for external enabling of heating/cooling are installed in the zone control panel. There are various possibilities for changeover between heating and cooling: Automatic changeover (external enabling) The system switches between heating and cooling automatically, depending on the temperature conditions. Via an external signal either only heating operation or heating and cooling operation can be enabled. This way it is possible to block the cooling function temporarily e.g. in the transition period. For external enabling an optional switch can be installed in the door of the zone control panel (cooling lock switch). Manual changeover (external setting) The system switches between heating and cooling according to the external setting. In case the external setting does not correspond to the actual requirement a protection mode is activated, if necessary, and alarm is generated (e.g. if cooling operation is set at very low outdoor temperatures). External enabling heating/cooling Input signal that reports on-site enabling of heating/cooling operation to the system: 0 = Heating 1 = Heating/Cooling External setting heating/cooling Input signal that reports manual switch-over to the system: 0 = Heating 1 = Cooling 24 V AC, max. 1 A 3.8 Options for the zone control panel Alarm lamp A lamp for displaying alarms is installed in the door of the zone control panel. The lamp flashes when new alarms have occurred, and it lights up if already acknowledged alarms are still present. Notice There is only 1 collective alarm lamp for each zone control panel zone. It shows the alarms of the whole system. Socket A 1-phase socket with a 2-pin circuit breaker is installed in the zone control panel. This socket serves for connecting maintenance tools. Its circuit is not cut out by the safety relay. Additional room air temperature sensors Instead of only 1 room air sensor, additional sensors are provided to determine the average value; the corresponding terminals are integrated. A maximum of 3 additional sensors are possible per control zone. Combination sensor room air quality, temperature and humidity A combination sensor is supplied instead of the room temperature sensor. It measures the relative humidity and quality (VOC content) of the room air in addition to its temperature. The sensor is installed on the wall in the occupied area, at a height of about 1.5 m. Notice Measurement of the room air humidity is a prerequisite for icing protection in applications with high extract air humidity. The use of the combination sensor enables the system to be operated without ice formation in the plate heat exchanger. B Table B13: Signal for controlling the cooling mode 24 V AC, max. 1 A Notice Measurement of the room air quality is a prerequisite for demand-based ventilation. The use of the combination sensor therefore enables the system to be operated in a particularly energy-saving manner. External sensor values It is possible to connect external sensors to the zone controller via additional inputs (input signal: 0 10 V DC or 4 20 ma): Room temperature Room air quality Room air humidity 15

18 TopTronic C System control Zone control panel External set values It is possible to connect set value specifications from an external system to the zone controller via additional inputs (input signal: 0 10 V DC or 4 20 ma): Room temperature Room air quality Air flow rate (supply air/exhaust air) Proportion of fresh air (for supply air units) Load shedding input The zone controller includes a digital input for load shedding by an external system. Operating selector switch on terminal (analogue) An operating mode can be specified for a control zone from an external system using an analogue operating mode signal connected to a terminal. Automatic mode according to the calendar is overridden. The operating modes are switched using different voltage levels. If there is no voltage applied, an alarm is triggered and the units switch to standby (ST). Voltage Supply and extract air handling units Supply air units Recirculation units 1.2 V DC ST ST ST 2.4 V DC REC REC REC 3.7 V DC SA REC1 REC1 5.0 V DC EA SA1 6.2 V DC VE SA2 7.5 V DC VEL 8.8 V DC AQ 10.0 V DC AUTO AUTO AUTO Table B14: Voltage levels for external switching of operating modes Operating selector switch on terminal (analogue) GND AO AI Operating selector switch on terminal (digital) An operating mode can be specified for a control zone from an external system using digital operating mode signals connected to a terminal. Automatic mode according to the calendar is overridden. The operating modes are switched using digital inputs. If there is no signal applied, an alarm is triggered and the units switch to standby (ST). Input Supply and extract air handling units Supply air units Recirculation units 1 ST ST ST 2 REC REC REC 3 SA REC1 REC1 4 EA SA1 5 VE SA2 6 VEL 7 AQ 8 AUTO AUTO AUTO Table B16: Digital inputs for external switching of the operating modes Operating selector switch on terminal (digital) Table B17: Connection of the external operating selector switch V AC, max. 1 A Operating selector button on terminal The operating selector button connected to a terminal makes it possible to specify a particular operating mode for a control zone using external illuminated pushbuttons (ST, VE or REC). Operating selector button on terminal Table B15: Connection of the external operating selector switch 24 V AC, max. 1 A Table B18: Connection of the external operating selector button 24 V AC, max. 1 A 16

19 TopTronic C System control Alarms and monitoring Power supply and safety relay The power supply for indoor climate units is integrated in the zone control panel. The following components are installed in the panel: the necessary circuit breakers and output terminals for each unit the safety relay (external) The size of the safety relay depends on the rated current. Rated current 1) Type Design < 1 A 2) NT-2 2-pin 1 32 A NT-4/32 4-pin A NT-4/63 4-pin A NT-4/100 4-pin A NT-4/125 4-pin A NT-4/160 4-pin A NT-4/250 4-pin A NT-4/400 4-pin 1) Rated current = nominal current consumption of all indoor climate units 2) Safety relay for zone controller (without power supply for indoor climate units) Table B19: Sizes of the safety relay 4 Alarms and monitoring The TopTronic C control system monitors itself. Central alarm management records each alarm situation in the alarm list with a timestamp, priority and status. The alarms are displayed on the operator terminals and via the collective trouble indicator. Forwarding via is also possible. If there is a failure of communication, bus stations, sensor systems or supply media, each part of the system transitions to a protection mode which safeguards operation. B Control of distributor pump(s), incl. power supply The components required for controlling and supplying power to the distributor pump(s) are installed in the zone control panel. The pumps can either be controlled via a release signal or switched directly. Type Pump Output 1PSW Heat supply 1-phase max. 2 kw 1PSK Heat/cold supply 1-phase max. 2 kw (2-pipe system) 1PSB Pump heat supply and pump cold 1-phase max. 2 kw supply (4-pipe system) 3PSW Heat supply 3-phase max. 4 kw 3PSK Heat/cold supply 3-phase max. 4 kw (2-pipe system) 3PSB Pump heat supply and pump cold supply (4-pipe system) 3-phase max. 4 kw Table B20: Technical data for the pump control 17

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21 TopTronic C System control for TopVent (C-SYS) Content TopTronic C System control for TopVent (C-SYS) Control system for decentralised indoor climate systems comprising 1 control zone (only TopVent supply air and recirculation units) C 1 System structure Operating options Zone control panel Alarms and monitoring

22 TopTronic C System control for TopVent (C-SYS) System structure 1 System structure The system control for TopVent (C-SYS) is a TopTronic C package solution for controlling plants comprising 1 control zone with up to 6 supply air units and 10 recirculation units. 1 BACnet Modbus IP Modbus RTU Building management system Zone control panel Zone controller with operating panel Zone bus Supply air units with unit controller Recirculation units with unit controller Fig. C1: System structure 1.1 Basic principles The individual units are regulated individually and controlled based on zones: A unit controller is integrated in each indoor climate unit and controls it according to the local conditions. The zone controller switches the operating modes according to the calendar, sends the outdoor and room temperatures to the individual units, manages set values and functions as an interface to external systems. A system comprises 1 control zone with the following types of indoor climate units: Supply air units (REMU) Recirculation units (RECU) 1.2 Zone bus The zone bus functions as serial connection of all unit controllers with the corresponding zone controller. Cable type: J-Y(ST)Y mm Length: max m Plan repeaters and on-site power supply for longer lengths. Bus termination Terminate the zone bus at both ends with a 120 Ω, ¼ W resistor. Topology: Line Table C2: Specification of zone bus The following variants of control zones are available: Type of units Max. number Supply air units 6 Recirculation units 10 Supply air units + Recirculation units 1) ) The recirculation units are switched on depending on heat or cool demand. Table C1: Variants of control zones 20

23 TopTronic C System control for TopVent (C-SYS) Operating options 2 Operating options 2.1 Zone controller with operating panel The zone controller with operating panel allows simple operation and monitoring of the system. It gives trained users access to all information and settings that are necessary for normal operation: Display and setting of operating modes Display of temperatures and setting of the room temperature set values Display and programming of the weekly calendar Display and handling of alarms and maintaining an alarm log Password protection The zone controller with operating panel is installed in the door of the zone control panel. 2.2 Integration into the building management system The TopTronic C can be easily integrated into the building management system via different bus interfaces. The following protocols are available: BACnet Modbus IP Modbus RTU A full data point list is available on request. When planning observe the following: BACnet Each control zone represents 1 node requiring 1 BACnet licence (BACnet instance). The following must be provided on site: an IP address range in the local area network for all bus participants 1 IP connection per control panel TopTronic C uses the following BACnet object types: BACnet object types Analogue Value Binary Value Integer Value Multi-state Value Table C3: Used BACnet object types C Fig. C2: Zone controller with operating panel Modbus IP 1 Modbus IP gateway RS485 is used for each control zone. The following must be provided on site: an IP address range in the local area network for all bus participants 1 IP connection per control zone Modbus RTU 1 Modbus RTU gateway RS485 is used for each control zone. The following must be provided on site: 1 Modbus slave address per control zone 21

24 TopTronic C System control for TopVent (C-SYS) Zone control panel 3 Zone control panel The zone control panel is made of painted steel sheet. It includes the following components: 1 zone controller with operating panel 1 safety relay (external) Power and control section 1 fresh air sensor (included) 1 room air sensor (included) Caution Danger of electric shocks. Ensure that overcurrent protection equipment is installed on site for the power supply cable. Technical data Dimensions (W x H x D) Design Material Use Protection class IP 66 Ambient temperature 5 40 C Power supply 1) 230 VAC Short circuit resistance I CW 10 ka eff 1) Power supply for the TopVent units provided by the client Table C4: Technical data for the zone control panel 3.1 Mounting height mm as compact cabinet for wall installation (cable introduction from below) Coated sheet steel (light grey RAL 7035) Indoors The zone control panel must be installed at the correct height to ensure convenient operation: 3.2 Location of the temperature sensors Install the fresh air sensor at least 3 m above the ground on a north-facing wall, so that it is protected from direct sunlight. Insulate the sensor from the building. Install the room air sensor at a representative position in the occupied area at a height of about 1.5 m. Its measured values must not be distorted by the presence of sources of heat or cold (machines, windows, etc.). Several averaging sensors can also be used. 3.3 Heating/cooling change-over There are various possibilities for changeover between heating and cooling: Automatic changeover (external enabling) The system switches between heating and cooling automatically, depending on the temperature conditions. Via an external signal either only heating operation or heating and cooling operation can be enabled. This way it is possible to block the cooling function temporarily e.g. in the transition period. The system controls and monitors the changeover valves heating/cooling. Manual changeover (external setting) The system switches between heating and cooling according to the external setting. In case the external setting does not correspond to the actual requirement a protection mode is activated, if necessary, and alarm is generated (e.g. if cooling operation is set at very low outdoor temperatures). The system controls and monitors the changeover valves heating/cooling. Alternatively, the changeover valves heating/cooling may be set manually. In this case, however, the correct valve position cannot be monitored by the system Hydraulics 4-pipe Heating/cooling change-over automatic (external enabling) automatic (external enabling) Changeover valves controlled and monitored wire manual (external setting) controlled and monitored manual, not monitored Table C5: Overview table of various possibilities for change-over between heating and cooling Fig. C3: Mounting height for convenient operation 22

25 TopTronic C System control for TopVent (C-SYS) Zone control panel 3.4 External connections Collective alarm Volt-free signal for the external display of a collective alarm Forced off (zone controller) Input signal for emergency switch-off via software control (all units in a zone): Fans off (without post operation) Dampers closed (by spring return) Recommended for emergency shut-off of the units with high priority (e.g. in the event of a fire) Forced off (supply air unit) Input signal for emergency switch-off via hardware control (one unit): Fans off (without post operation) Dampers closed (by spring return) Recommended for emergency shut-off of the units with highest priority (e.g. in the event of a fire) Heating demand Volt-free signal that reports the heating requirement to the heat production on site max. 250 V AC, 8 A 24 V AC, max. 1 A 24 V AC, max. 1 A Cooling demand Volt-free output signal that reports the cooling requirement to the cold production on site Fault cold supply Alarm input signal that informs the system that the cold supply is not working 0 = Fault 1 = Normal operation External enabling heating/cooling Input signal that reports on-site enabling of heating/cooling operation to the system: 0 = Heating 1 = Heating/Cooling External setting heating/cooling Input signal that reports manual switch-over to the system: 0 = Heating 1 = Cooling max. 250 V AC, 8 A 24 V AC, max. 1 A 24 V AC, max. 1 A 24 V AC, max. 1 A Changeover valves heating/cooling (1 x flow / 1 x return) Supply/control voltage: 0 V = Heating 24 V = Cooling C Setpoint heating demand Analogue signal that reports the setpoint for the flow temperature to the heat production on site (2-10 V C) max. 250 V AC, 8 A AO 24 V AC 0/24 V AC Position response via limit switches Table C6: External connections GND AI Fault heat supply Alarm input signal that informs the system that the heat supply is not working: 0 = Fault 1 = Normal operation V DC 24 V AC, max. 1 A Additional room air temperature sensors Instead of only 1 room air temperature sensor, a maximum of 3 additional sensors can be connected to determine the average value. External setpoint fresh air ratio It is possible to connect the setpoint value specification from an external system to the zone controller (input signal: 0 10 V DC or 4 20 ma). Operating selector switch on terminal (digital) An operating mode can be specified for a control zone from an external system using digital operating mode signals 23

26 TopTronic C System control for TopVent (C-SYS) Alarms and monitoring connected to a terminal. Automatic mode according to the calendar is overridden. The operating modes are switched using digital inputs. If there is no signal applied, an alarm is triggered and the units switch to standby (ST). Input Supply air units Recirculation units 1 ST ST 2 REC REC 3 REC1 REC1 4 SA1 5 SA AUTO AUTO Table C7: Digital inputs for external switching of the operating modes 4 Alarms and monitoring The TopTronic C control system monitors itself. Central alarm management records each alarm situation in the alarm list with a timestamp, priority and status. The alarms are displayed on the operator terminals and via the collective trouble indicator. If there is a failure of communication, bus stations, sensor systems or supply media, each part of the system transitions to a protection mode which safeguards operation. Operating selector switch on terminal (digital) Table C8: Connection of the external operating selector switch 24 V AC, max. 1 A Operating selector button on terminal The operating selector button connected to a terminal makes it possible to specify a particular operating mode for a control zone using external illuminated pushbuttons (ST or REC). Operating selector button on terminal Table C9: Connection of the external operating selector button 24 V AC, max. 1 A 24

27 EasyTronic EC Content EasyTronic EC Room temperature controller without a timer for recirculation units and air curtains with EC fan 49 D 1 Use and function Technical data System structure

28 EasyTronic EC Use and function 1 Use and function 2 Technical data The EasyTronic EC is a room temperature controller without a timer for Hoval recirculation units and air curtains with EC fan. A maximum of 10 TopVent units can be connected to 1 controller. Technical data Electrical supply VAC, ±10%, 50/60 Hz Power consumption max. 1.3 W Temperature range C Protection rating IP 30, class 2 Dimensions (W x H x D) 128 x 80 x 56 mm Installation In a 3-gang flush-mounted box or on the supplied base Table D1: Technical data EasyTronic EC Fig. D1: EasyTronic EC room temperature controller Function Recording the room temperature with the integrated temperature sensor Room temperature control in on/off mode: If the room temperature falls below the setpoint value, the connected TopVent units switch on. Upon reaching the setpoint value, the units switch off again. Controlling the TopVent units using a door contact switch: The connected units are switched on via door contact if the door is open (digital input). Controlling the fan speed: The required speed can be infinitely controlled. Controlling the air distribution: The blow-out direction of the air can be adjusted infinitely variably from vertical to horizontal. (This function is only for TopVent DHV units.) Pump or valve control: The EasyTronic EC provides a signal for switching a pump or a valve (digital output). Location Install the room temperature controller with the integrated temperature sensor at a height of about 1.5 m at a representative location in the occupied area. Its measured values must not be distorted by the presence of sources of heat or cold (machines, windows, sunlight, etc.). 26

29 EasyTronic EC System structure 3 System structure 3.1 EasyTronic EC with TopVent DHV / NHV 3.2 EasyTronic EC with TopVent TV / TW 400 VAC 400 VAC 400 VAC 230 VAC 230 VAC 230 VAC 230 VAC 230 VAC 1 EasyTronic EC 2 Pump/valve 3 Door contact 4 TopVent DHV / NHV (max. 10) Fig. D2: Conceptual diagram 1 EasyTronic EC 2 Pump/valve 3 Door contact 4 TopVent TV / TW (max. 10) Fig. D4: Conceptual diagram D 400 VAC 230 VAC 230 VAC 1 EasyTronic EC 2 Pump / Valve control 3 Door contact 4 Fan control 5 Control of air distribution (TopVent DHV) 6 TopVent DHV / NHV Fig. D3: Connection diagram 230 VAC 1 EasyTronic EC 2 Pump / Valve control 3 Door contact 4 Fan control 5 TopVent TV / TW Fig. D5: Connection diagram 27

30 28

31 EasyTronic ET Content EasyTronic ET Room temperature controller without a timer for recirculation units and air curtains with 2-speed fan 30 E 1 Use and function Technical data System structure

32 EasyTronic ET Use and function 1 Use and function 2 Technical data The EasyTronic EC is a room temperature controller without a timer for Hoval recirculation units and air curtains with 2-speed fan. The room setpoint temperature is set manually and the required fan speed is selected using a switch. The EasyTronic ET consists of the following components: Room thermostat: The required temperature is set on the room thermostat using the control knob. If the room temperature drops below the setpoint value, the TopVent units switch on. Upon reaching the setpoint value, the units switch off again. Switching device: The required fan speed can be set using the switching device (1 = low speed / 2 = high speed / 0 = off). A maximum of 10 TopVent units can be controlled with 1 EasyTronic ET. The EasyTronic does not have a signal for switching a distributor pump or heat generator. Technical data Dimensions (W H D) mm Feed voltage VAC ±10 % Frequency Hz Series fuse 10 A Switching capacity max. 4 kw Protection rating IP 54 Ambient temperature 5 40 C Table E1: Technical data for the switching device 3 System structure EasyTronic ET 3 x 400 VAC Fig. E1: Room thermostat Fig. E2: Switching device 1 TopVent HV / curtain (max. 10) 2 Switching device 3 Room thermostat Fig. E3: Conceptual diagram 30

33 TempTronic RC Content TempTronic RC Programmable control system for TopVent gas units 31 F 1 Use and function Regulation of the room temperature Control of the air distribution External connections Technical data System structure

34 TempTronic RC Use and function 1 Use and function 2 Regulation of the room temperature The TempTronic RC is a programmable control system for TopVent gas units. A maximum of 8 units can be connected to 1 controller. TempTronic RC controls up to 8 TopVent gas units in accordance with heating requirements. In fresh air operating mode the units are constantly in operation; the proportion of fresh air for supply air units can be regulated (0 100 %). In recirculation mode the system operates in the energy-saving on/off mode. The fuzzy-logic-based regulating algorithm switches the units according to criteria different from those of conventional 2-point regulators; the deviations are thus smaller. The TempTronic RC system comprises an automatic frost protection switching function: If the room temperature drops below frost protection temperature, the units are switched on. Once the temperature has risen by 2 C the units switch off again. The frost protection temperature can be regulated. 3 Control of the air distribution Fig. F1: Room temperature controller TempTronic RC Function The TempTronic RC is connected to the units via a system bus and fulfils the following functions: Recording the room temperature with the integrated temperature sensor Regulation of the room temperature Control of air distribution by means of the Hoval Air-Injector 3 set point values can be set (Room temperature day, Room temperature night and Frost protection temperature) Control of operating modes according to week programme and calendar Registration of unit malfunctions in an alarm list Password protection for user and service personnel Menu-guided operation via a 4-line display The patented air distributor the so-called Air-Injector delivers varying volumes of supply air at different temperatures draught-free to the occupied area of high spaces. This is made possible by the vortex device, by means of which the blow-out direction of the air can be adjusted infinitely variably from vertical to horizontal. It depends on: the mounting height the air flow rate ( fan speed) the temperature difference between supply air and room air In certain cases the Air-Injector can be set to a fixed value when commissioning takes place. For the TempTronic RC to automatically adapt the delivery direction of the air to changing operating conditions, an Air-Injector actuator is required. Location Install the room temperature controller with the integrated temperature sensor at a height of about 1.5 m at a representative location in the occupied area. Its measured values must not be distorted by the presence of sources of heat or cold (machines, windows, sunlight, etc.). 32

35 TempTronic RC External connections 4 External connections 5 Technical data By means of an optional module, the following additional functions can be controlled: Collective alarm In case of a malfunction a collective alarm can be displayed by means of a volt-free contact X2 Technical data Feed voltage Low voltage via system bus Dimensions (W H D) mm Ambient temperature 0 50 C Protection rating IP 20 Table F2: Technical specifications of the TempTronic RC Room temperature average value 1) Instead of the integrated room air sensor, 4 sensors can be installed for calculation of the mean value in the occupied area. max. 230 V AC, 6 A -X System bus Cable type Topology Length 1 pair of conductors, twisted, shielded, category 5 or better Line bus Max. 250 m Capacity approx. 50 pf/m Proportion of fresh air 1) The proportion of fresh air of supply air units can be regulated externally (e.g. via a building master control system). -X Table F3: Specification of the bus cable External switching 1) The appliances can be switched to the operating mode 'Off' (e.g. from a control centre). -X5 1 2 External room temperature sensor 1) Instead of the room temperature sensor that is integrated into the TempTronic RC an external sensor can be connected. -X F 1) Recommended cable type: J-Y(ST)Y mm Table F1: External connections of the option module 33

36 TempTronic RC System structure 6 System structure 6.1 TempTronic RC with TopVent DGV / NGV / MG / GA VAC 400 VAC 400 VAC VAC 1 TempTronic RC 2 Option module (for additional functions) 3 System bus 4 TopVent DGV / NGV / MG / GA (max. 8) Fig. F2: Conceptual diagram 6.2 TempTronic RC with TopVent GV VAC 230 VAC 230 VAC VAC 1 TempTronic RC 2 Option module (for additional functions) 3 System bus 4 TopVent GV (max. 8) Fig. F3: Conceptual diagram 34

37 Notes F 35

38 36 Notes

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40 Hoval quality. You can count on us. As a specialist in heating and air-conditioning technology, Hoval is your experienced partner for system solutions. For example, you can heat water with the sun's energy and the rooms with oil, gas, wood or a heat pump. Hoval ties together the various technologies and also integrates room ventilation into this system. You can be sure to save both energy and costs while protecting the environment. Hoval is one of the leading international companies for indoor climate solutions. More than 70 years of experience continuously motivates us to design innovative system solutions. We export complete systems for heating, cooling and ventilation to more than 50 countries. We take our responsibility for the environment seriously. Energy effi ciency is at the heart of the heating and ventilation systems we design and develop. Responsibility for energy and environment United Kingdom Hoval Ltd. Northgate, Newark Nottinghamshire NG24 1JN hoval.co.uk Hoval Aktiengesellschaft Austrasse Vaduz hoval.com Edition Hoval your partner