Honeywell. Overload protection is provided for the transformer. Large 38 VA transformer to power heatingcooling low voltage control systems.

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Godfrey Rodgers
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Honeywell R8239 CENTER OR AT72H,J TRANS- FORMER (WTH APPROPRATE RELAY), PROVDES LOW VOLTAGE CONTROL OF LNE VOLTAGE MOTORS AND AUX- LARY CRCUTS N HEATNG, COOLNG, OR HEATNG-COOLNG SYSTEMS.

1 Honeywell R8239 CENTER OR AT72H,J TRANS- FORMER (WTH APPROPRATE RELAY), PROVDES LOW VOLTAGE CONTROL OF LNE VOLTAGE MOTORS AND AUX- LARY CRCUTS N HEATNG, COOLNG, OR HEATNG-COOLNG SYSTEMS. AT72H,J Transformer provides for addition of cooling at later date without expensive rewiring by simply plugging in an R8222 (3/4 hp) or an R8228 ( hp) Switching Relay. Overload protection is provided for the transformer. Large 38 VA transformer to power heatingcooling low voltage control systems. Low voltage terminal board provides convenient connections for thermostat, and heating and cooling equipment control circuit wiring. o Mounts on standard 4 inch square junction box. Relay in R8239 is mounted in a receptacle and can easily be replaced without disturbing wiring. R8239, with completely enclosed relay, can be mounted in any indoor location without additional enclosure. Meets NEMA ST2-973 Standard Residential Controls-Class 2 Transformers, marked NEMA Type D. R.E. REV (.08)

TRADELNE MODELS TRADELNE models are selected and packaged to provide ease of stocking, ease of handling and maximum replacement value. TRADE LNE model specifications are the same as standard models.

2 TRADELNE MODELS TRADELNE models are selected and packaged to provide ease of stocking, ease of handling and maximum replacement value. TRADE LNE model specifications are the same as standard models. TRADEL NE models: hp fan application. R8239A Fan Center spdt switching; 38 VA trans- R8239H Fan Center spdt switching; 38 VA former. For single-speed or 2-speed fan transformer. For - or 2-speed, hp fan application. application. R8239B Fan Center dpdt switching; 38 VA trans- Q633AOO7 Plate Mounted Relay Receptacle for former. For total comfort application with installing R8222 and R8228 relays on J-boxes. electronic air cleaner, humidifier and blower ncludes leadwires for dpdt relay, metal relay motor. cover, and labels for spst, spdt, and dpdt R8239D Fan Center dpst switching; normally relays. A knockout allows mounting a SUPER open power pole, and normally open pilot TRADELNE AT72D transformer. See Table or duty pole; 38 VA transformer. For l-speed fan TRADELNE Catalog to order appropriate application with an auxiliary circuit. relay. R8239G Fan Center spst switching; normally ADDTONAL FEATURES: TRADELNE pack with open pole; 38 VA transformer. For l-speed, cross reference label and special instruction sheet. STANDARD MODELS TABLE R8239 MODEL SPECFCATONS R8239 REPLACEMENT COMPONENTSa RELAY NPUT SEE TRANSFORMER HORSE- SWTCHNG VOLTAGE WRNG CENTER AND RELAY POWER (V AC) DAGRAM RECEPTACLE R8239A AT72H R8222B 3/4 Spdt Fig. 5 R8239B AT72J R8222D 3/4 Dpdt Fig. 6 R8239C AT72H R8222A 3/4 Spst r N.O. Contact Fig. 7 R8239D AT72J R8222U 3/4 R8239E AT 72J R8222F 3/4 Dpst, N.O. Power Contact, N.O. Pilot DutV Contact 20 or Dpst, N.O. Contact, N.C. Contact R8239F AT72J R8222C 3/4 Dpst, both Contacts N.0. R8239G AT72H R8228A lb Spst, N.O. Contact RR7WH AT R8228B lb Sr)dt aat72h,j and appropriate relay can be ordered separately. 208/240 bl hp at 20v ac; 2 hp at 240V ac. kfig. 8 Fig.9 Fig. 8 Fig. 7 Fig. 5 * (continued on page 3) WHOLESALER OR YOUR DSTRBUTOR, REFER TO THE TRADE LNE CATALOG OR PRCE SHEETS FOR COMPLETE ORDERNG NUMBER, OR SPECFY-. Order number. 2. Transformer primary voltage. 3. Accessories, if required. F YOU HAVE ADDTONAL QUESTONS, NEED FURTHER NFORMATON, OR WOULD LKE TO COMMENT ON OUR PRODUCTS OR SERVCES, PLEASE WRTE OR PHONE:. YOUR LOCAL HONEYWELL RESDENTAL DVSON SALES OFFCE (CHECK WHTE PAGES OF PHONE DRECTORY). 2. RESDENTAL DVSON CUSTOMER SERVCE HONEYWELL NC., 885 DOUGLAS DRVE NORTH Ml NNEAPOLS, MNNESOTA (62) (N CANADA HONEYWELL CONTROLS LMTED, 740 ELLESMERE ROAD, SCARBOROUGH, ONTARO MP 2V9) NTERNATONAL SALES AND SERVCE OFFCES N ALL PRNCPAL CTES OF THE WORLD. 2

3 STANDARD MODELS: AT72H Plate-mounted Transformer-Relay Receptacle use when cooling will be added later. ncludes receptacle and leadwires for spst or spdt relay circuit; less R8222 or R8228 relay and relay cover. See Table to order appropriate relay. AT72J Plate-mounted Transformer-Relay Receptacle use when cooling will be added later. ncludes receptacle and leadwires for dpdt or dpst relay circuit; less R8222 or R8228 relay and relay cover. See Table to order appropriate relay. TRANSFORMER RATNGS: Power Rating 38 VA. Primary Voltage either 20 or 208/240V ac. Open Circuit Secondary Voltage 26 ~.5 volts. Overload Protection nternal. Voltage Frequency 50/60 Hz. CONTACT RATNGS: Contact ratings are for both normally open and normally closed contacts. R8239A F. VOLTAGE 20V AC 240V AC Full Load (amp) Locked Rotor (amd) ,4 Horse~ower 3/4 3/4 R8239G and H. VOLTAGE 20V AC 240V AC Full Load (am~) 6 2 Locked Rotor (amp) Horsepower 2 RELAY COL RATNGS: nrush 20 VA maximum. Sealed-9 VA. Wattage 5 watts. Pickup Voltage must pick up below 8 volts. LEADWRE COLOR CODE: FG. 38 VA TRANSFORMER REGULATON CURVES. PLOT DUTY RATNGS FOR R8239D PLC)T DUTY POLE: Minimum 3 VA at 24, 20, 240, and 480V ac. Maximum 25 VA at 24V ac, 25 VA at 20, 240, and 480V ac. Resistive 3 amps at 277V ac (0.75 power factor). Powerpile (millivoltage ) The normally open pilot duty contacts are rated for Powerpile (millivoltage) applications: 0.25 amp at 0.25 to 2V dc. TRANSFORMER PRMARY LEADWRE COLOR CODE : 20V Black and white. 208/240V black common: Red 208V. Orange 240V. MODEL SWTCHNG ] POLE LEADWRE COLOR Black common R8239A Spdt Red N.O. contact AT72H Brown N.C. contact Black common Red N O. contact R8239B Brown N.C. contact Dpdt AT72J Violet common Pole 2 Red/Yellow N.O. contact Yellow N.C. contact R8239C %st Both leadwires black N.O. contact R8239D D pst (power pole) Both leadwires black N.O. contact Pole 2 (pilot duty pole) Both leadwires red N.0. contact R8239E Dpst Both leadwires black N.O. contact Pole 2 Both leadwires red N.C. contact R8239F Dpst Both leadwires black N.O. contact Pole 2 Both leadwires red N.O. contact R8239G Spst Both leadwires black N.O. contact R8239H Spdt Black common Red N. O. contact Brown N.C. contact

3;79 LEADWRES: 9 inch color-coded leadwires. RELAY COL LEADWRE COLOR CODE: 2 blue leads connected to C and G terminals. POWER CONSUMPTON: 7.0 watts maximum. CONTACTS: Silver cadmium oxide.

4 3;79 LEADWRES: 9 inch color-coded leadwires. RELAY COL LEADWRE COLOR CODE: 2 blue leads connected to C and G terminals. POWER CONSUMPTON: 7.0 watts maximum. CONTACTS: Silver cadmium oxide. MOUNTNG: Mounts on standard 4 inch square junction box. DMENSONS: See Figs. 2 and 3. UNDERWRTERS LABORATORES NC. LSTED (for R8239A-H): File No. E4436, Guide No. XAPX. (R8222A-H): File No. E59779, Guide No. NLDX2. CANADAN STANDARDS ASSOCATON COMPO- NENT RECOGNZED: R8239A-H File No. LR620. R8222 (all models) File No. LR EXTERNAL LOAD: R8239 and AT72H,J (with R8222 or R8228 relay) will operate the following typical Honeywell relay and/or contactor loads with up to 300 feet of No. 8 gauge wire (50 ft run). The maximum load for each application is: 2 R8230 Switching Relays. 2 R850 Contractors. R8230 Switching Relay and one R850 Cfmtactnr R850 Contactor and one R8093 Thermal Delay Relay. R82O, R822, or R824 Contactor and one R8230 Relay. R82O, R822, or R824 Contactor and one R8093 Thermal Delay Relay. 4+ [4] t [20 5] [67) 3; [86] 3 4r$l =79 3,48. 2 APPROXMATE R8239 AND AT72H WTH RELAY COVER NSTALLATON DMENSONS N NCHE [MLLMETRES]. 4; [4],, A 3:[86] 3 %[ 06 ( - 3;[86,4,,. FG. 3 APPROXMATE AT72+,J NSTALLATON DMENsloNs N NCHES [M LLMETREs. 4

5 6 [62] 2;[57] 3;[86] 3 4iz[ 06 TRANSFORMER L MOUNTNG HOLE (COVERED) ~DA. [22 _ FG. 4 APPROXMATE Q633Ao03 NSTALLATON DMENSONS N NCHES [Mi LLiMETREs]. MEETS NEMA ST2-973 RESDENTAL CONTROLS- an appropriate R8222 or R8228 relay into an AT72H,J CLASS 2 TRANSFORMER, classification marked tran~forrner. The wiring hookups are similar to Figs. 5-9 NEMA Type D. with the exception of some leadwire colors. Order the ACCESSORES: appropriate relay, using Table. The metal cover, Part The R8239 function can be achieved by plugging No , is available to enclose the relay.. Disconnect power supply to prevent electrical shock and equipment damage. 2. nstaller must be a trained, experienced service technician. 3. Always conduct a thorough checkout when installation is complete. MOUNTNG The R8239, AT72H,J and Q633AOO7 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 receptacles without relays, select and mount the appropriate relay (Table ) and attach the relay cover. A label identifying the relay used (furnished with TRADE LNE 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 2 percent. WRNG All wiring must comply with local codes and ordinances. Refer to information furnished with the system equipment or refer to Figs. 5-8 showing internal schematics and typical hookups for the fan centers. For R8239F, see Fig. 8; for Q633AOO7, see Fig. 0. When making external connections to the line Underwriters Laboratories nc. listed connectors. ~ SOLATON RELAY ~ i [ : Ll----l PLENUM SWTCH OR OTHER SWTCHNG Al DEVCE ~RMARJ BROWN HEATNG CONTROL RED ~. R8239A, H T, L J (l ~,!BLACK~,l[HOT)+ - TWO-SPEED MOTOR [ ~ PROVDE DSCONNECT MEANS AND OVERLOAD PROTECTON AS REQuRED. ~ USE OPTONAL HOOKUP WTH SOLATNG RELAY (DASHED LNE) F HEATNG CONTROL HAS A SEPARATE PDWER suw.ly, SOLATON OF THE POWER SUPPLY MAY ALSO BE ACCOMPLSHED BY USNG SPECAL THERMOSTAT SUB. BASE COMBNATONS WTH SOLATED CRCUTS (SUCH AS T87F-QS39A 47, T834A.Q634A039, T822A.Q6 A037]. REFER TO SpeCifiCatiOn SHEETS FOR DETALS. G. 5 R8239A,H TYPCAL HOOKUPWTH 2-SPEED N HEATNG-COOLNG SYSTEM

$e H808A HUMDSTAT b> &l R8243 CONTACTOR OR COMPRESSOR control panel \ PROVDE DSCONNECT MEANS AND OVERLOAD PROTECTON,4S REQURED.$

6 isolaton RELAY = m----l TO AUXLARY ~ T87F THERMOSTAT ~ POWER S=PROVDE DSCONNECT MEANS AND OVERLOAD PROTECTON AS REQURED. e H808A HUMDSTAT b> &l R8243 CONTACTOR OR COMPRESSOR control panel \ PROVDE DSCONNECT MEANS AND OVERLOAD PROTECTON,4S REQURED. J USE OPTONAL HOOKUP WTH SOLATNG RELAY (DASHED LNE) F HEATNG CONTROL HAS A SEPARATE POWER SUPPLY SOLATON OF THE POWER SUPPLES MAY ALSO BE ACCOMPLSHED BY USNG SPECAL THERMOSTAT 5UBBASE COMBNATONS WTH SOLATED CRCUTS SUCH AS T87F.Q539A 47, T834A-Q634A039, TB22A-Q6 A037). REFER TO SPECFCATON SHEETS FOR DETALS..,5,.. 6 R8239B TYPCAL HOOKUP WTH 2-SPEED. TOTAL GOMFORT APPLCATON PROVDED WTH ELECTRONC AR CLEANER, HUMDFER AND BLOWER MOTOR. ~ se OPTONAL HOOKUP WTH tsolatng RELAY ( DASHED LNE) F HEATNG CONTROL HAS A SEPARATE POWER supply. SO LA TO N OF T HE POWER SUpPLES MAY ALSO BE ACCOMPLSHED BY USNG SPECAL THERMOSTAT SUB. BASE C0MWNATON5 WTH lsolated CRCUTS (SUCH AS T87F.Q539A 47, T834A.Q634A039, T822A.Q6 A037). REFER TO SPECFCATON SHEETS FOR DETALS. ~ TD AUXLARY CRCUT. MAYBE USED AS A LOCKOUT CONTACT TO PREVENT AN ELECTRC STRP HEATER FROM OPERATNG UNLESS THE MOTOR S OPERATNG, OR AS COndenSing UNT 5WTCHNG MEANS. 465, FG. 8 TYPCAL HOOKUP R8239D WTH l-speed N HEATNG-COOLNG SYSTEM AND P LOT DUTY CONTACTS TO POWER AUX- LARY CRCUT. R8239F S SMLAR, BUT HAS 2 NORMALLY OPEN POWER RATED CONTACTS. TWO.SPE MOTOR ls0l,4t0n RELAY LW--- ADO DSCONNECT MEANS AND OVERLOAD PROTECTON AS REQURED. USE OPTONAL HOOKUP WTH SOLATNG RELAY (DASHEC LNE) F HEATNG CONTROL HAS A SEPARATE p~wer SUPPLY. SOLATON OF THE POWER SUPPLES MAY ALSO BE ACCOMPLSHED.9Y USNG SPECAL THERMOSTAT SUB. BASE COMBNATONS WTH SOLATED CRCUTS (SUCH AS T87F.Q539A 47, T834A-Q634A039, T822A.Q6 la 037). REFER TO SPECFCATON SHEETS FOR DETALS, FG. 7 R8239C,G TYPCAL HOOKUP WTH l-speed N HEATNG-COOLNG SYSTEM. -DEE&+~AcToR AND LMT CONTROLLER ~ PROVQE DSCONNECT MEANS AND OVERLOAD PROTECTON AS REQURED. OR COMPRESSOR CONTROL PANEL A USE OPTONAL HOOKUP WTH SOLATNG RELAY (DASHED LNE) F HEATNG CONTROL HAS A SEPARATE POWER SUPPLY. SOLATON OF THE power SUPPLES MAY ALSO BE ACCOMPLSHED BY USNG SPECAL THERMOSTAT SUB. BASE COMBNATONS WTH SOLATED CRCUTS (SUCH AS T87F.Q539A 47, T834A.Q634A039, T822A.Q6 A037). REFER TO SPECFCATON SHEETS FOR DETALS FG. Y R&!39E TYPCAL HOOKUP WTH 2-SPEED AND LMT CONTROLLER N HEATNG-COOLNG SYSTEM. 6

R82228 R8222D R8228A R82288 SPDT GENERAL PURPOSE RELAY DPDT GENERAL PURPOSE RELAY SPST GENERAL PURPOSE RELAY SPDT GENERAL PuRPOSE RELAY TYPCAL HOOKUP WTH 2 SPEED ~Lu TO 24V COM.

7 R82228 R8222D R8228A R82288 SPDT GENERAL PURPOSE RELAY DPDT GENERAL PURPOSE RELAY SPST GENERAL PURPOSE RELAY SPDT GENERAL PuRPOSE RELAY TYPCAL HOOKUP WTH 2 SPEED ~Lu TO 24V COM. ELK TO TERM H RED ~Lu c-g ON MOTOR THERM- LO 6RN col OSTAT TYPCAL HOOKUP WTH 2 SPEED V80 TYPCAL HOOKUP WTH 2 SPEED ;:~CAL tiookup wlth 2 5PEED ~Lu TO 24V COM BLK COM, BLK To TERM. TC H RED ~Lu CG ON H RED MOTOR THERM- MOTOR LO BRN col OSTAT ~Lu TO 24v COM. 8LK ~Lu TO 24v TERM. TO TERM. ~Lu c-g ON FAP H RED ~Lu C-G ON THERM- MOTOR THERM. COL OSTAT LO BRN COL OSTAT AUX. LOAD RED YE YEL 6.72?!? a m H PJCTE DD NOT NTERCONNECT WTH OTHER LOW VOLTAGE POWER SUPPLES. F HEATNG CONTROL HAS AN NTEGRAL POWER SUPpLY, REFER TO WRNG NSTRUCTON FG. O Q633AOO7 RECEPTACLE plate WRNG HOOKUPS WTH TYPCAL RELAYS. On Q633A 007 Plate-mounted Relay Receptacle, leadwires are provided for additional relav pole positions. nsert the required leadwires in the relay rec~ptacle as follows. Determine the leadwire colors required for the relay and application desired (Fig. 0). Push the leadwire terminal into the receptacle plate from the side stamped with the color code (Fig. ). 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 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. SERVCE.J, olft,r~~w~ TERPv NAL ON LEA DwRF t \\ \ RLLJE CEPTACLE &NCE 5LOT LFAD,, WRE5 FG. l BOTTOM OF Q633AO07 PLATE-MOUNTED RELAY RECEPTACLE SHOWNG LEAD- WRE NSTALLATON.,./, Disconnect the power supply to prevent electrical shock and equipment damage. The relay in the R8239 is field replaceable. See Accessories in SPECFCATONS section for appropriate relay. To replace the relay use the following procedure:. 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. HONEYWELL MNNEAPOLS, MNN NTERNATONAL Sales Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, Frarke, Germany, Japan, Mexico, Netherlands, Spain, Taiwan: Unit;d Kingdom, U.S.A. PRNTED N U.S.A.

Honeywell. Overload protection is provided for the transformer. Large 38 VA transformer to power heatingcooling low voltage control systems.

Honeywell. Overload protection is provided for the transformer. Large 38 VA transformer to power heatingcooling low voltage control systems. Honeywell R829 FAN CENTER OR AT72H,J TRANS- FORMER (WTH APPROPRATE RELAY), PROVDES LOW VOLTAGE CONTROL OF LNE VOLTAGE FAN MOTORS AND AUX- LARY CRCUTS N HEATNG, COOLNG, OR HEATNG-COOLNG SYSTEMS. AT72H,J