43.019/1. NRT 300: Electronic controller for air-conditioning (heating/cooling) Sauter Components

Transcription

1 43.09/ NR 300: Electronic controller for air-conditioning (heating/cooling) For fixed-value control (I control, continuous) in air-conditioning systems, for residential and business premises. Used with an NR 300 controller to obtain fixed-value + schedule control. For taking measurements in air ducts, an external cable sensor (accessory) can be connected. ousing mm of pure-white (RAL 900) thermoplastic; with +/ scale and variable stops for setpoint limitation. Frontal presence button (green LED lights up = room occupancy). wo other LEDs indicate the operating status (red = heating; yellow = cooling). Internal DI switch for de-activating the temperature sensor when an external cable sensor is used. Black baseplate with screw-type terminals strip for wires of up to mm. ype ) Operating mode Change-over functions ) Output ower supply Weight [kg] NR 300 F04 sequence, c/o, D switched 4 V ~/= 0. NR 300 F06 sequence, c/o, D continuous 4 V ~/= 0. ower supply 4 V~ ±0%; z Sensor time constant for air:- 4 V= +0%; 5% in room (0. m/s) 8 min ower consumption approx..5 VA in duct (0.5 m/s) 3 min Control parameters non-volatile in duct (3 m/s) min Setpoint adjuster X s C Ambient temp C roportional band X p...0 Ambient humidity %rh Integral action time Degree of protection I 30 (EN 59) (as I controller)...0 min or OFF rotection class III (IEC 730) eriod or drive s running time min Dead zone X t normal Conformity EN 098 and CE extended X t +8 EC immunity EN , Input command variable w V, R i = 90 kω EC irradiation EN , 4 Influence of w +.6 /V Quality ISO 900 Outputs: F04 F06 F04: contact rating 0.5 A (0.9 A with Wiring diagram A08585 A0843 ext. sensor) Dimension drawing F06:, y V, load > 5 kω Fitting instructions V V 5057 with overflow > V (load-dependent) Variants as standard model except:- ousing without adjuster, on request. ousing with scale C, on request. /I I Y08586 Y0848 Sequence, dead zone normal Sequence, dead zone extended B0849 Accessories -AX hermal valve drive, see Section 55 -AVR, AX otorised valve drive, see Section 5, 55 -EG 0 Dew-point monitor, see Section 34 -ZDR Central time-switch (emotime), see Section * Sensor holder for wall mounting * Rubber bung as sensor holder in air duct * Recessed junction box (in conjunction with only) * Fing kit for sensor (holder, bronze spring, strap retainer, heat-conducting paste) * Intermediate cover plate in pure white, for various recessed junction boxes * Cable-type sensor (NC).5 m, for measurements in air duct, max. 70 C, R5 = 0 kω * Cable-type sensor (NC) 3.0 m, for measurements in air duct, max. 70 C, R5 = 0 kω * Cable-type sensor (NC) 0 m, for measurements in air duct, max. 70 C, R5 = 0 kω * Cable-type sensor (NC) 0 m, for measurements in air duct, max. 70 C, R5 = 0 kω * older for sensor cartridge in air duct * Bracket for wall mounting * lug-in power unit, input 30 V~, output V~ (0.34 A),.8 m of cable, I 30 *) Dimension drawing or wiring diagram are available under the same number ) = dead zone ON/OFF; c/o = summer/winter ; D = dew point ) NR 300 F06 suitable for use as a master controller for up to ten NR 300s:- (Slope S = -band X. Shift starting point FF = setpoint X S. Operating mode: sequence)

2 43.09/ NR 300 Operation he temperature is measured by a temperature sensor. On the room controller, the sensor is incorporated in the housing. For duct controllers, an external sensor should be connected. he resistance of the sensor is converted by a measuring bridge into an actual-value signal (x i ) and then compared to the setpoint X s. he controller amplifies the control deviation and depending on the type creates the appropriate output signals:- F04, S/ = OFF: Open-Stop-Closed signals (3-point control) for I control with a motorised drive without positioner. For heating, with by an external signal (c/o) to cooling for a -pipe system. F04, S/ = ON: ulse-pause signals (-point control) for control for heating and cooling, in each case for a thermal or a continuous drive for 4-pipe systems, or heating, with by an external signal (c/o) to cooling for the thermal drive of a -pipe system. F06: Continuous signal for I control for heating and cooling; in each case for a continuous drive for 4-pipe systems, or heating, with by an external signal (c/o) to cooling for the continuous drive of a -pipe system. 00 Stroke % 0 h n XSd XSh x I-part -part ime Open-Stop-Closed signals (I control, F04). If control deviation is volatile, a lengthy -pulse is emitted, followed by regular smaller I- pulses, until the control deviation becomes less than half of the switching range XSh. E (Control factor) 0,5 0 / E=0,5 E=0,50 ulse-ause signals ( control, F04). he switching ratio E (pulse duration: period duration) changes in proportion to the control deviation. his also affects the average heating output and the stroke of a proportional thermal drive like a controller. B08 E=0,75 B0806a Dead-zone (X t ): In the heating/cooling sequence, the dead zone is enlarged to 4 X. herefore, the temperature is lowered in heating mode and raised in cooling mode ( eco mode). Setpoint shift (command variable w): he setpoint is raised with respect to X s with an influence of +.6 /V. his allows, for instance, the room temperature to be matched to the rising outside temperature (summer shift), or condensation to be avoided when humidity is rising. Dew point (D): When the contacts of the dew-point monitor are closed, the cooling output becomes inactive or, respectively, the cooling valve closes. Frost protection: Irrespective of the setpoint and dead zone, the heating valve opens whenever the temperature is below 6 C. When the temperature rises above 7 C, the anti-frost function becomes inactive. It may be necessary to adjust the temperature in order to retain the accuracy of the switching points. Summertime/wintertime (c/o): When the contacts are closed, the output for heating is changed over to cooling. Factory settings: (non-volatile parameters) roportional band X p = Dead zone normal X tn = 0.4 Integral action time t n = inactive emperature adjustment lus (for F04): eriod or running time ZERO = inactive t p = 4 min t y = 4 min

3 NR /3 Control characteristics n r = n ± 4 F04 F06 F04 F06 00% 0V 00% 0V y y 50% 5V 50% 5V 0% 0V XS B08468a Contacts X t open; resence :- Operating mode is Sequence (heating and cooling). When actual value x i = setpoint X s : both regulating units are closed. 0% 0V XS B08469a Contacts X t closed; Absence :- Operating mode is Sequence (reduced mode). he dead zone is enlarged and effects a reduction when heating and an increase when cooling. Fixed-value+schedule function with NR 300 as master controller aster controller Output With NR 300 as schedule controller. Room temperature C 0V y S Command variable C B08470 FF Command variable C B083 Output y (or y ) of the master controller can influence more than one controller. he shift starting point FF can be set using the setpoint adjuster X S, and the slope can be set using the - band X. In the fixed-value range, all the connected controllers regulate to X S. In the schedule range, the temperature is raised using slope S. Due to the influence of.6 /V of the schedule controller and the -band of the master controller of 0 V/X, the following applies: S = 6/. When X =...0 of the master controller, the following slope in / applies: S = Dimension drawing 3,3 3,

4 43.09/4 NR 300 Wiring diagram NR 300 F04: 4-pipe system -pipe system -pipe system 4V~ NR300 F04 S/ int (pt) S/ = On I (3pt) S/ = Off S S ; n; ; p ; n; ; y A I I sequence S/ B B/A S/ shift setpoint R = 00% dead zone shift setpoint R = 00% dead zone w c/o w c/o ext A08585b NR 300 F06: 4-pipe system -pipe system NR300 F06 4V~ S S/ int ; n; A I sequence B shift setpoint R = 00% dead zone B/A w c/o y ext Accessories 9674 A0843a ,5 5 9, Ø...4 Ø Ø6, c Ø ,5 5, 00754

5 NR /5 Accessories 334 3, ,7 77 4, 85 5 B Ø 5,8 mm Ø 9 mm 0 50 Ø6 400, ,5 4, ,

6 43.09/6 NR 300 Fixed-value control, heating/cooling NR 300 NR 300 NR 300 4V~ 4 5 y c/o B08 B08430 F04: amum 4 drives per output F06: Outputs y and y (total load > 5 kω) for drives with positioner, e.g. max. 6 units, each R i = 30 kω (AVR...S, BW...S, VW...S, AR...S, A...S) Fixed-value+schedule control with NR 300 F06 as master controller B083 Outputs w (y ) and w (y ) (total load > 5 kω) of the master controller for shifting up to ten NR 300s. 4 V~ NR 300 F06 NR 300 NR 300 S/ = ON Y Y W Y Y W Y Y w w ext w w y y GND ey = heating = cooling = temperature w = command signal B08437b rinted in Switzerland Right of amendment reserved N.B.: A comma between cardinal numbers denotes a decimal point Fr. Sauter AG, C-406 Basle