Controller family Instat 7 INSTAT 7. Air Conditioning Controls

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Tamsin Golden
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1 K Controller family Instat 7 INSTAT 7 Air Conditioning Controls

Air conditioning controller INSTAT 7 Applications The electronic AC controller INSTAT 7 can be used to control: -pipe / 4-pipe fan coils Heat-pumps in air-conditioning units (with/without reverse

Common features of the INSTAT 7 family -point controller with feedback Clear LCD display Permanent display of room temperature, set temperature at touch of a button Operating elements: 4 buttons

2 Air conditioning controller INSTAT 7 Applications The electronic AC controller INSTAT 7 can be used to control: -pipe / 4-pipe fan coils Heat-pumps in air-conditioning units (with/without reverse valve) Split units Cooling equipment with/without electrical heating etc. Common features of the INSTAT 7 family -point controller with feedback Clear LCD display Permanent display of room temperature, set temperature at touch of a button Operating elements: 4 buttons (Mode, +,, OK) Menu-assisted operation Max. 5 relays - outputs Stand-by Separate heating, cooling User-defined dead zone and stage gap Fan control manual in speeds (according to model) Automatic fan (fan operates during heating and cooling, fan speeds depending on the temperature difference) (according to model) Fan off delay (if heating switches off) Compressor/restart delay following mains failure, during normal operation and during function/operating mode switch-over Automatic change over between internal and external room temperature sensors Safe data in case of power failure Automatic ventilation Fan speed 1 Fan speed Fan speed Timer Heating only 1 g h i Cooling only Fan only U P f 1 Automatic heating/cooling W X ON timer OFF timer Air-sweep Stand-by Curser to symbols : P U Temperature Heating active Cooling active U P

3 Optional features (these features are only available in certain controller models, see table of variants page 5) Automatic change over between heating and cooling x heating and x cooling (user-defined stage gaps) Output for reverse valve Defrost function Electric auxiliary heater (for heat-pumps) External-temperature control management in cooling operation Remote sensor input Window contact input Air Sweep On/Off ON timer, OFF timer (set time range : 10 min. to 99 h 50 min.) Master/Slave function (slaves switch off when the master is in the dead zone) Hotel version (easy setting) On/Off switch (single pole disconnected of the equipment from power supply) AC 0 or AC 4 variants Common technical data Model no. INSTAT 7 EDP No Temperature range K 0 C are pre-set Temperature display 0 to K Operating temperature 0 to 40 C Control algorithm Two-position with feedback Display: LCD-Display with simultaneous display of room temperature, timer, operating mode Display size 41 x 4 mm (l x h) Figure size 1 mm for temperature 9 mm for timer static hysteresis for heating/fan approx. 1.1 K for cooling/fan approx. 1. K Relay output max. two L-connections Fan relays voltage free Protection class IP 40 Dimensions 14 x 71 x mm (h x w x d) Specific technical data Power supply AC 0 ( ) 50 Hz UC 4 ( ) Temp. sensor external NT Type F according to variant none, 1 or sensors possible Length 4 m, extensions to 10 m possible Timer: 10 min. to 99 hours 50 min. Window contact Extension to 100 m possible Dead zone H1-C K (1.5 K pre-set) adjustable in 0.5 K steps Stage gap H1-H K (1.5 K pre-set) C1-C adjustable in 0.5 K steps Fan off delay approx. 1 minute Compressor-/restart delay approx. 4 minutes Outputs: Max. 5 relays AC 50 5 A cos ϕ =1 according to variant A cos ϕ =0.6 Max. capacity per < 10 A L-connection

4 Applications 4-pipe fan coil -pipe fan coil heat-pump

5 Matrix of variants INSTAT 7 Relay outputs Sensor Inputs Functions Heating Cooling Compressor Reverse valve Fan speeds Air sweep Outdoor fan Aux. heating Master Room Defrost Outdoor Window-contact /Slave Heating/cooling c/o input Hotel version ON/OFF timer Only manual c/o heating/ cooling Cooling only/ fan only ON/OFF switch Order -No.: α O P T I O N A L Applications Heatpump -pipe fan coils -pipe fan coils -pipe fan coils x heating x cooling cooling only cooling only 4-pipe fan coils Used Symbols Automatic c Fan speeds f Heating U Cooling P Fan only f ON/OFF-timer > Air sweep X = Standard variants α = Auxiliary heating for heating- and cooling mode H = Heating, C = Cooling, = entilation

6 FAXINFO INSTAT 7 We have the following technical problem and would like your suggestions: Please copy and send to: EBERLE Infoline / Please call us: Mrs./Mr. Telephone Telefax EBERLE Controls GmbH Postfach D-9011 Nürnberg Klingenhofstraße 71 D Nürnberg Telephone / Telefax / EBERLE Controls GmbH Postfach D-9011 Nürnberg Klingenhofstraße 71 D Nürnberg T +49(0) F +49(0) infoeberle@invensysclimate.com U C Errors possible / Subject to alterations

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