RA889A Switching Relay

Transcription

1 Switching Relay INSTALLATION INSTRUTIONS APPLIATION The Switching Relay provides intermediate switching of line- and low-voltage devices from a line- or low-voltage controller and is typically applied in hydronic heating systems. 5 (9) (0) () SPEIFIATIONS Electrical Ratings: Voltage: 0 Vac, 60 Hz. Thermostat Heat Anticipator Setting: 0.A. () DIAMETER () DIAMETER () DIAMETER KEYHOLE TYPE MOUNTING HOLE Transformer Ratings: Primary: 0 Vac, 60 Hz. Secondary: Vac, VA maximum; 9 VA available for external loads. Secondary is protected by replaceable A automotive fuse. ontact Ratings: 5 AFL, 0 ALR; maximum connected load 000 VA. () 5 () Switching Action: Spdt, plus extra low voltage Spst. Electrical onnections: No. captivated wire clamp screw terminals. Dimensions: See Fig.. ross Reference: The replaces many Honeywell models. See Table for additional cross reference information. (9) (6) DIAMETER MOUNTING HOLE (0) () (0) 5 6 (5) Replacement Parts: Replacement Fuse: Use a A automotive fuse. 5 (0) KNOKOUT FOR (5) / () ONDUIT () MA Fig.. dimensions in in. (mm). U.S. Registered Trademark opyright 999 Honeywell Inc. All Rights Reserved X-XX UL 69-9-

2 SWITHING RELAY Table. Replacement ross Reference. onnections Manufacturer Model Input Line Voltage Power Relay Low Voltage Relay Thermostat omments Honeywell L N.. X X Honeywell RA9Ab T T Honeywell RA b B R See Fig. thermostat connections. Jumper L to and between X and in. Honeywell RB 6 B R Requires jumper between X and Honeywell Ra 6 B R Honeywell RB 6 Jumper to. Line voltage switched inputs go to L and. Honeywell R a 6 See Fig. B. Honeywell RJa 6 Line voltage inputs go to L and. See Fig. B. Honeywell RA b W B Honeywell RB 6 W B Honeywell R a 6 W B Honeywell RJ a 6 a has one set of / relay contacts. Use R5U if two sets are required. b has lower output load rating. heck load requirements. INSTALLATION When Installing this Product.... Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.. heck the ratings given in the instructions and on the product to make sure the product is suitable for your application.. Installer must be a trained, experienced service technician.. After installation is complete, check out product operation as provided in these instructions. 5. Follow local codes for installation and application. WARNING Electrocution Hazard. Power supply can cause severe injury, or death. Transformer core not bonded. Disconnect power supply before wiring. MOUNTING In replacement applications, mount the new relay in the same location as the old relay. For new installations, locate the relay vertically on a solid wall or partition as close as possible to the device to be controlled. Select a location that is easily accessible for installation and service. NOTE: To reduce the possible transformer hum and relay noise that is sometimes amplified by mounting surfaces such as sheetmetal, plasterboard, and similar materials, place rubber or felt washers between the case and the mounting surface.. Position the relay and mark the mounting holes. See Fig... Start a screw in the upper right corner for the keyhole type mounting hole. Screw it down within about / in. ( mm) of the surface.. Hang the relay on the screw, position the case, and start the bottom screw.. Tighten both screws. 69-9

3 SWITHING RELAY WIRING AUTION Electrical Shock or Personal Injury Hazard. Power supply can shock. Use only NE lass wire for all line voltage wiring connections. lass wires must be rated for at least 6 F (5 ). All wiring must comply with all applicable electrical codes, ordinances, and regulations. Follow all instructions furnished with the controlled equipment. IMPORTANT The switching relay terminals are approved only for use with copper wires. When two or more line-voltage load devices are to be controlled in parallel, the total current must not exceed the rating for the relay load. Never connect load terminals to a load that uses more current than the amount listed in the electrical ratings on the relay. See Table for wiring length specifications. See the schematic and typical hookups in Fig. through. AUTOMOTIVE FUSE G (LASS ) -WIRE Table. Wire Lengths. Wire Size Total Wire Length Wire Length of Run to Thermostat (AWG) Ft M Ft M L RELAY LED N.. X X L HOT TO POWER LOAD TO POWER LOW-VOLTAGE POWERPILE POWER SUPPLY. PROVIDE OVERLOAD PROTETION AND DISONNET MEANS AS REQUIRED. M95 Fig.. internal schematic and typical hookup. TF TF TF RELAY L X X L X X L X X L (HOT) PUMP PUMP PUMP G L T T B B LA/LA 55 RG F F T T ORANGE WHITE BLAK BURNER AND IGNITION POWER SUPPLY. PROVIDE DISONNET MEANS AND OVERLOAD PROTETION AS REQUIRED. ONTROL ASE MUST BE ONNETED TO EARTH GROUND. USE GROUNDING SREW PROVIDED. B IS / IN. TAB TERMINAL. M0 Fig.. hookup for LA/LA in an oil-fired, tankless hot water, zoned, pump system. 69-9

4 SWITHING RELAY TF TF TF RELAY L X X L X X L X X L (HOT) PUMP PUMP PUMP G L T T B B LF/LE TR THTR TH GAS VALVE (eg, VR00) POWER SUPPLY. PROVIDE DISONNET MEANS AND OVERLOAD PROTETION AS REQUIRED. ONTROL ASE MUST BE ONNETED TO EARTH GROUND. USE GROUNDING SREW PROVIDED. B IS / IN. TAB TERMINAL. M Fig.. hookup for LF/LE in a gas-fired, V, zoned, pump system. ZONE ZONE ZONE ZONE R R W R W R W R W R A B 0 VA H H ZONE ZONE ZONE ZONE L L L Z G L (HOT) IRULATOR PUMP IRULATOR PUMP IRULATOR PUMP IRULATOR PUMP L X X G IRULATOR PUMP 5 ZONE 5 Z H H TO APPROPRIATE ONNETIONS AS REQUIRED BY THE SYSTEM. H-H TYPIALLY ONNETED TO T-T OF BURNER ONTROL SYSTEM. ONTROL ASE MUST BE ONNETED TO EARTH GROUND. USE GROUNDING SREW PROVIDED. USE OPPER ONDUTORS ONLY. FOR ALL LASS ONNETIONS, USE WIRE RATED FOR AT LEAST 6 F (5 ). POWER SUPPLY. PROVIDE DISONNET MEANS AND OVERLOAD PROTETION AS REQUIRED. ONNET L-Z JUMPER, IF REQUIRED. M Fig. 5. R zone expansion using additional Switching Relays. 69-9

5 SWITHING RELAY THREE-WIRE (SERIES 0) B X X X X TWO-WIRE (SERIES 0) MAKES ONTAT ONLY ON TEMPERATURE FALL. M6 Fig. 6. thermostat connections. A. FOR V ONTROL L, (HOT) NEUTRAL LINE VOLTAGE ONTROLLED OUTPUTS L N.. X X OPTIONAL R W ONTROLLED OUTPUT HEKOUT. Keep the cover on the relay during normal operation and remove only for service and checkout.. Relay contacts require no cleaning; they are arranged to close with a wiping action and are selfcleaning. The contacts may turn black after being in service for some time; this discoloration does not prevent proper operation.. After installation is complete, operate system through at least one cycle from the controller to make certain the relay controls the equipment as intended. TROUBLESHOOTING Test Button This connection is the same as a call for heat connection between the and terminals. Relay LED This LED lights whenever there is 0 Vac (L) on the terminal (when / relay contacts are closed). B. FOR LINE VOLTAGE ONTROL LINE VOLTAGE ONTROL NEUTRAL L JUMPER N.. X X. FOR EXTERNAL SEPARATE POWER SOURE NEUTRAL L V ONTROLLER INPUT SUPPLY N.. X X REQUIRED FOR OUTPUT LED OPERATION. FOR SERIES 0 OR OTHER HARDWIRED ELETRONI -WIRE S. WARNING! ELETROUTION HAZARD. POWER SUPPLY AN AUSE SEVERE INJURY OR DEATH. DISONNET POWER BEFORE WIRING OR SERVIING L. POWERED RELAYS MUST BE WIRED AS DRY ONTATS. M Fig.. control options

6 SWITHING RELAY Automation and ontrol Solutions Honeywell International Inc. 95 Douglas Drive North Golden Valley, MN 55 Honeywell Limited-Honeywell Limitée 5 Dynamic Drive Scarborough, Ontario MV Z G.R. Rev customer.honeywell.com