User manual HONEYWELL ZG252N

[. . . ] Compact control units ZG 215N / 215 VN / 252 N MOUNTING INSTRUCTIONS Mounting of the Control Unit It can be mounted in any dry room, e. The device can be mounted either in a cubicle door or on the wall. Maximum permissible ambient temperature: 45 C. Door Mounting The casing cover is held by a snap hinge closure. [. . . ] Hold the discharge compartment by the handle and turn out to the right by exerting a light pressure. Press the timer on both pin in the direction of the arrow. Hang the slide of the instructions case in the relevant recess of the insert. Pull the controller insert out of the casing with the aid of the slide on the instructions case. Press the left lock pin to the left with a screwdriver; by doing so, the case is freed from the device's base. Mount the device's base with two 0. 4 mm screws and dowels horizontally on the wall. The assembly is to be carried out in the opposite order. Electrical Connections The electrical connections are to be carried out by a technician! n Left terminal strip (base): Cross sections 230 V AC 1. 5 mm (connection to the control unit, servomotor, pump) 18 V DC >= 0. 75 mm (connection to the sensors and selectors) The 18 V lines are to be laid separately from the 230 V lines. Use shielded cables in the presence of intense HF disturbance fields! sing of this device model. When using the ZG 252N in low temperature heating systems (e. g. floor heating) an additional thermostat is recommended to provide separate over-temperature limitation. With 230 V/50 Hz the servomotor and circulation pump require the jumper from terminal 5 to 6. The local regulations on earthing and resetting are to be followed carefully when connecting the device. Earlier temperature selector and sensor versions without additional letters A (e. TW 20, RF 20, TF 20, etc. ) have the same electrical connections and the same resistance values as the device versions with with additional letter A. n Right terminal strip (base): Wiring The single accessory parts are to be connected according to the wiring diagram on the back of the ca- Noise suppression Our control units are all provided with noise suppression. n Before putting the system into service, check Checking the Control System whether the control device is connected as illustrated in the wiring diagram. Checking the Temperature Sensors and -Selectors n The servomotor's sense of rotation can be deter- mined by setting the control unit's operating mode selector on "auto" for ZG 252N or "auto" for ZG 215N / ZG 215VN and by changing the room target value on setting knob B (ZG 252N) or on the TW/TF (ZG 215N / ZG 215VN). LED Display Red Green Servomotor Opens Closes By measuring the resistance it can be checked whether the temperature sensors and selectors are connected correctly. (The indicated terminal numbers refer to the markings on the sensors and selectors. ) Temperature Sensor AF20, VF 20, VF 20A Resistance values (R) at ambient temperature (t) t [C] -20 -10 0 +20 +25 +30 +70 +90 R [kW] 220 122 70 25 20 16 3, 1 1, 5 Setting knob B or TW / TF Turn towards + Turn towards Temperature Selector TW 20A, TF 20A Setting on the Selector Resistance [kW] between the terminals 1/2 Right stop (+12) Left stop (-12) 147 100 1/3 100 147 2/3 47 47 If the sense of rotation is wrong, invert terminals 10 and 11 on the left-hand of the terminal strip. Connecting the Potentiometer If a potentiometer is used as feedback with the ZG 215N instead of the flow sensor VF 20, also terminals 4 and 5 on the right-hand are to be inverted besides terminals 10 / 11 if the sense of rotation of the actuator (mixer, ventilation valves), is wrong. [. . . ] In case of fixed installation an all-pole disconnection device with at least a 3 mm contact opening is to be installed. 567 123 TW 21 TW 22 TW 23 9 12 RF 20 VF 20 LF 20 123456 TFU 22 Reference 230 V~ SELV ZG 252 N ZG 252 N 7 . 12 1 2 3 4 5 6 7 8 9 10 11 12 123 PE NL 1 2 3 4 5 6 7 8 9 10 11 12 Operating instructions ZG 252NV EN-2H0215 GE51 ZG 215NV EN-2H0216 GE51 ZG 215VN EN-2H0217 GE51 "Informationsschrift" (Planning broschure in German) L3 Comfort-Kompakt-Regler GE-0H 0327 GE51 CB50247F VF AF ext. 123456 10 9 Hometronic ALTERNATIVE ALTERNATIVE TF 22 7 12 10 7 5 HCE 60 12 4 5678 1234 123456 U+ TFU 22 [CBZG_MAE. VP] TW 20 HCM 200 Hometronic Centra Regelungstechnik Honeywell AG Bblinger Strae 17 D 71101 Schnaich Telefon +49 (70 31) 637-01 Telefax +49 (70 31) 637-493 EN 1H-0181 GE51 R1001 07157 562 http://www. honeywell. de/hga [. . . ]