Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4.
25 nov 2020 — Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the ...
Fan Centers R8239A-H Relays; AT72H,J Transformers; Q633A Receptacle APPLICATION R8239 Fan Center--use for heating, cooling or heatingcooling system. AT72H,J Plate-Mounted Transformer-Relay Receptacle--use when cooling will be added later. Q633A Plate-mounted Relay Receptacle--use to install R8222 and R8228 Relays on J boxes. Above devices provide low voltage control of line voltage fan motors and auxiliary circuits in heating, cooling, or heating-cooling systems. INSTALLATION INSTRUCTIONS INSTALL ATION When Installing This Product... 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4. After installation is complete, check out operation as provided in these instructions. CAUTION Disconnect power supply before beginning installation to prevent electrical shock and equipment damage. Fig. 1. R8239A-H, Fan Center. MOUNTING The R8239, AT72H,J and Q633A1007 mount on a standard 4 inch square junction box. Make wiring connections in the junction box, then fasten the fan center to the box, placing the junction box screws through notches in the fan center mounting plate. On Q633A or AT72H,J Receptacles without relays, select and mount the appropriate relay and attach the relay cover. A label identifying the relay used (furnished with select models) should be applied to the relay cover. NOTE: Relay may be mounted in any position. With the terminals pointing down, pickup voltage is increased by 12 percent. WIRING All wiring must comply with local codes and ordinances. Refer to information furnished with the system equipment or refer to Figs. 2-6 showing internal schematics and typical hookups for the fan centers. See Fig. 5--R8239F; Fig. 7--Q633A1007; Fig. 9--typical hookup for R8239D in an intermittent Pilot system. IMPORTANT When making external connections to the line voltage leadwires of this device, use only Underwriters Laboratories Inc. listed connectors. 60-1190-01 FAN CENTERS R8239A-H RELAYS; AT72H,J TRANSFORMERS; Q633A RECEPTACLE R8239 Replacement Componentsa Relay Relay Fan Transformer and Horse Center Receptacle power Table 1. R8239 Model Description. Switching Pole Leadwire color R8239A AT72H/R8222B 3/4 SPDT Black--common -- Red--N.O. contact Brown--N.C. contact R8239B AT72J/R8222D 3/4 DPDT Pole 1 Pole 2 Black--common Red--N.O. contact Brown--N.C. contact Violet--common Red/Yellow--N.O. contact Yellow--N.C. contact R8239C AT72H/R8222A 3/4 SPST, N.O. -- Both leadwires black--N.O.contact R8239D AT72J/R8222U DPST, 1 N.O. power Pole 1 (power pole) Both leadwires black--N.O.contact 3/4 contact, 1 N.O. pilot duty contact Pole 2 (pilot duty pole) Both leadwires red--N.O.contact R8239E AT72J/R8222F 3/4 DPST 1 N.O., 1 N.C. Pole 1 Pole 2 Both leadwires black--N.O.contact Both leadwires red--N.C.contact R8239F AT72J/R8228C 3/4 DPST Both N.C. Pole 1 Pole 2 Both leadwires black--N.O.contact Both leadwires red--N.O.contact R8239G AT72H/R8228A 1b SPST, N.O. contact -- Both leadwires black--N.O.contact R8239H AT72H/R8228B 1b SPDT Black--common -- Red--N.O. contact Brown--N.C. contact a At72H,J and appropriate relay can be ordered separately. b 1 hp at 120 Vac; 2 hp at 240 Vac. See Wiring Diagram Fig. 2 Fig. 3 Fig. 4 Figs. 5,9 Fig. 6 Fig. 5 Fig. 4 Fig. 2 PLENUM SWITCH OR OTHER SWITCHING DEVICE BROWN RED , I I I I ISOLATION RELAY I , 1 I HEATING CONTROL T T87F THERMOSTAT TWO-SPEED FAN MOTOR 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 USE OPTIONAL HOOKUP WITH ISOLATING RELAY (DASHED LINE) IF HEATING CONTROL HAS A SEPARATE POWER SUPPLY. ISOLATION OF THE POWER SUPPLIES MAY ALSO BE ACCOMPLISHED BY USING SPECIAL THERMOSTAT SUBBASE COMBINATIONS WITH ISOLATED CIRCUITS (SUCH AS T87F-Q539A1147, T834A-Q634A1039, T822A-Q611A1037). REFER TO SPECIFICATION SHEETS FOR DETAILS 4648A Fig. 2. R8239A,H typical hookup with 2-speed fan in heating-cooling system. HUMIDISTAT OR COMPRESSOR cONTROL 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 USE OPTIONAL HOOKUP WITH ISOLATING RELAY (DASHED LINE) IF HEATING CONTROL HAS A SEPARATE POWER SUPPLY. ISOLATION OF THE POWER SUPPLIES MAY ALSO BE ACCOMPLISHED BY USING SPECIAL THERMOSTAT SUBBASE COMBINATIONS WITH ISOLATED CIRCUITS (SUCH AS T87F-Q539A1147, T834A-Q634A1039, T822A-Q611A1037). Fig. 3. R8239B typical hookup with 2-speed fan. "TOTAL COMFORT" application provided with electronic air cleaner, humidifier and blower motor. 60-1190--01 2 FAN CENTERS R8239A-H RELAYS; AT72H,J TRANSFORMERS; Q633A RECEPTACLE RELAY FAN MOTOR 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 USE OPTIONAL HOOKUP WITH ISOLATING RELAY (DASHED LINE) IF HEATING CONTROL HAS A SEPARATE POWER SUPPLY. ISOLATION OF THE POWER SUPPLIES MAY ALSO BE ACCOMPLISHED BY USING SPECIAL THERMOSTAT SUBBASE COMBINATIONS WITH ISOLATED CIRCUITS (SUCH AS T87F-Q539A1147, T834A-Q634A1039, T822A-Q611A1037). REFER TO SPECIFICATION SHEETS FOR DETAILS 4650A Fig. 4. R8239C,G typical hookup with 1-speed fan in heating-cooling system. TO AUXILIARY RELAY FAN AND LIMIT CONTROLLER OR COMPRESSOR CONTROL PANEL 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 USE OPTIONAL HOOKUP WITH ISOLATING RELAY (DASHED LINE) IF HEATING CONTROL HAS A SEPARATE POWER SUPPLY. ISOLATION OF THE POWER SUPPLIES MAY ALSO BE ACCOMPLISHED BY USING SPECIAL THERMOSTAT SUBBASE COMBINATIONS WITH ISOLATED CIRCUITS (SUCH AS T87F-Q539A1147, T834A-Q634A1039, T822A-Q611A1037). REFER TO SPECIFICATION SHEETS FOR DETAILS Fig. 6. R8239E typical hookup with 2-speed fan and limit controller in heating-cooling system. On Q633A1007 Plate-mounted Relay Receptacle, leadwires are provided for additional relay pole positions. Insert the `required leadwires in the relay receptacle as follows. Determine the leadwire colors required for the relay and application desired (Fig. 7). Push the leadwire terminal into the receptacle plate from the side stamped with the color code (Fig. 8). When inserting the leadwire, the tang on the quick-connect terminal must align with the small clearance slot in the terminal opening. Press the terminal in until it locks in place. CHECKOUT 1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 2 USE OPTIONAL HOOKUP WITH ISOLATING RELAY (DASHED LINE) IF HEATING CONTROL HAS A SEPARATE POWER SUPPLY. ISOLATION OF THE POWER SUPPLIES MAY ALSO BE ACCOMPLISHED BY USING SPECIAL THERMOSTAT SUBBASE COMBINATIONS WITH ISOLATED CIRCUITS (SUCH AS T87F-Q539A1147, T834A-Q634A1039, T822A-Q611A1037). REFER TO SPECIFICATION SHEETS FOR DETAILS 3 TO AUXILIARY CIRCUIT. MAYBE USED AS A LCOKOUT CONTACT TO PREVENT AN ELECTRIC STRIP HEATER FROM OPERATING UNLESS THE FAN MOTOR IS OPERATING, OR AS CONDENSING UNIT SWITCHING MEANS. 4651 Fig. 5. Typical hookup R8239D with 1-speed fan in heating-cooling system and pilot duty contacts to power auxiliary circuit. R8239F is similar, but has 2 normally open power rated contacts. Always conduct a thorough checkout when installation is complete. Place the system into operation. Operate the system through at least one complete cycle to make sure that the system equipment and the fan center operates as intended. SERVICE CAUTION Disconnect the power supply to prevent electrical shock and equipment damage. The relay in the R8239 is field replaceable. See Table 1 on page 2 section for appropriate relay. To replace the relay use the following procedure: 1. Remove the 2 relay cover screws and remove the cover. 2. Remove the plug-in relay from the receptacle, and replace with new relay. 3. Replace the cover and 2 screws removed in step 1. 3 60-1190--01 FAN CENTERS R8239A-H RELAYS; AT72H,J TRANSFORMERS; Q633A RECEPTACLE GENERAL PURPOSE TYPICAL HOOKUP WITH FAN SPEED COM. TO FAN MOTOR RED LO cOIL TO 24V TERM ON GENERAL PURPOSE RELAY TYPICAL HOOKUP WITH 2 SPEED FAN BLK FAN H I RED MOTOR LO BRN cOIL TO 24V TERM. ON THERM- GENERAL PURPOSE RELAY GENERAL PuRPOSE RELAY TYPICAL HOOKUP WITH 2 SPEED FAN BLK FAN HI RED MOTOR COIL TO TERM. ON THERM- COM. TO HI RED MOTOR LO 2 COIL TO TERM. C-G ON THERM. AUX. LOAD RED YE YEL NOTE: DO NOT INTERCONNECT WITH OTHER LOW VOLTAGE POWER SUPPLIES. IF HEATING CONTROL HAS AN INTEGRAL POWER SUPPLY REFER TO WIRING INSTRUCTION. 6472 Fig. 7. Q633A1OO7 receptacle plate wiring hookups with typical relays. RED LEADWIRE BLACK LEADWIRE TRANSFORMER MOUNTING HOLE COVER VIOLET LEADWIRE BLUE LEADWIRES TANG RECEPTACLE CLEARANCE SLOT QUICK CONONN ECT TERMINAL ON LEADWIRE 6473 Fig. 8. R8239E typical hookup with 2-speed fan and limit controller in heating-cooling system. Fig. 9. Typical hookup for R8239D used as isolating relay in an intermittent pilot system. www.resideo.com Resideo Technologies, Inc. 1985 Douglas Drive North, Golden Valley, MN 55422 1-800-468-1502 60-1190--01 M.S. Rev. 06-20 | Printed in United States © 2020 Resideo Technologies, Inc. All rights reserved. This product is manufactured by Resideo Technologies, Inc. and its affiliates.