Honeywell TRADELINE R482J User's Manual
Contents
1. Dpdt 24 4 7 AWG Length of Run Wire Total Wire to Thermostat Size Wires Number J H Rev 10 94 OHoneywell Inc 1994 Form Number 69 0791 3 Installation WHEN INSTALLING THIS PRODUCT 1 Read these instructions carefully Failure to follow instructions can damage 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 Make sure installer is a trained experienced service technician 4 After completing installation use these instructions to check out product operation AN WARNING ELECTROCUTION HAZARD CAN CAUSE PROPERTY DAMAGE SEVERE INJURY OR DEATH Transformer core not bonded Disconnect power supply before wiring to pre vent electrical shock or equipment damage MOUNTING For replacement mount the relay in the same location as the old relay If this is a new installation 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 1 Position the relay and mark the mounting holes See Fig 1 5 Start a screw f2. 3 Relay contacts require no cleaning they are arranged so they close with a wiping action and are self cleaning The contacts may turn black after being in service for some time this discoloration does not prevent proper operation 4 After installation is complete operate system through at least one cycle from the controller to make certain the POWER LOAD2 relay controls the equipment as intended POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED A WHEN CONTROLLING TWO LOADS USE 3 AND 4 FOR LINE VOLTAGE LOAD AND 5 AND 6 FOR LINE OR LOW VOLTAGE LOAD A IF USING LOW VOLTAGE USE A SEPARATE TRANSFORMER A 10 AMP CONTACT RATING OR 20 AMP WHEN POLES ARE CONNECTED IN PARALLEL M8231B Honeywell Home and Building Control Honeywell Inc 1985 Douglas Drive North Golden Valley MN 55422 Printed in U S A Home and Building Control Honeywell Limited Honeywell Limit e 740 Ellesmere Road Scarborough Ontario MIP 2V9 Helping You Control Your World QUALITY IS KEY
3. CONTROLLER IF USED L2 L1 TO LOAD HOT POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED A COMPLETE WIRING AS SHOWN ABOVE M3819 Fig 3 Internal schematic and typical hookup for RA832A LOW VOLTAGE CLASS 2 2 WIRE THERMOSTAT p gt AUXILIARY TO LOW OR MILLIVOLTAGE POWERPILE LOAD L2 L1 LOAD1 LOAD2 HOT OPTIONAL POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED M3821 Fig 4 Internal schematic and typical hookup for R182J R182J LOAD LOAD Li vA NO NC NO NC HOT POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED VAN N O CONTACTS MAKE BEFORE N C CONTACTS BREAK AND N C CONTACTS MAKE BEFORE N O CONTACTS BREAK M8232 Fig 5 Thermostat connections for R182J THREE WIRE THREE WIRE TWO WIRE LOW VOLTAGE LOW VOLTAGE LOW VOLTAGE SERIES 10 A SERIES 20 SERIES 80 THERMOSTAT THERMOSTAT THERMOSTAT A MAKES CONTACT ON TEMPERATURE FALL ONLY A MAKES CONTACT ON BOTH A TEMPERATURE RISE AND FALL M8233A Fig 6 Internal schematics and typical hookup for R482J R482J CONTROLLER A v HOT N O N C COM N O N C COM TO LOAD TO LOAD A POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED A CONTROLLER IF USED MUST BE SNAP ACTION OR MERCURY SWITCH TYPE A N O CONTACTS MAKE BEFORE N C CONTACTS BREAK AND N C CONTACTS MAKE BEFORE N O CON
4. Honeywell TRADELINE R182J R482J R845A R847A RA89A RA832A Switching Relays Application These relays can be used for a variety of switching applications Typically they provide control of line or low voltage devices by a low voltage controller See Table 1 TABLE 1 SWITCHING RELAY SPECIFICATIONS Coil Voltage Relay Coil Contact Voltage Switch Control Vac at Current Ratings A Models Application 50 60 Hz Action Circuit 50 60 Hz A R182J For 24V thermostat 12 3 wire 0 402 control of line voltage 37 222 devices i 1 R845A For hot water zone control systems or spst control of two separate loads 120 240 120 e R847A Provides switching for high current loads such as 240 cooling compressors RAS89A For switching one line 120 Spst voltage load 240 2 0 40 444 RA832A For switching two line Dpst voltage loads with a 3 7 222 common power source IMPORTANT The transformer on the R182 can over TABLE 2 LENGTH OF WIRE heat when used with a series 20 thermostat if the total resistance of the thermostat circuit exceeds 2 5 ohms If the measured resistance of the thermo stat including thermostat wire and thermostat con tact resistance exceeds 2 5 ohms add a 100 ohm 10 watt resistor between the W and R terminals Table 2 gives maximum thermostat wire runs if longer runs are necessary measure the resistance or add a 100 ohm 10 watt resistor across terminals W and R
5. TACTS BREAK M8234 Fig 7 Schematic diagram showing R845A in multizone forced hydronic heating system This arrangement is suitable for any number of additional zones HYDRONIC HEATING TO ADDITIONAL R845A CONTROL TERMINALS RELAYS FOR OTHER ZONES peN RA845A RELAY THERM THERMOSTAT ZONE 1 gt THERMOSTAT ZONE 2 CIRCULATOR ZONE 2 POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED IF CONTROLLING TWO LOADS USE 3 AND 4 FOR LINE VOLTAGE LOAD 5 AND 6 FOR LINE OR LOW VOLTAGE LOAD Ar USING LOW VOLTAGE USE A SEPARATE TRANSFORMER M3822 69 079 1 3 Fig 8 R845A hookup for controlling two loads 2 WIRE THERMOSTAT LOW VOLTAGE CLASS 2 Relay Fig 10 Internal view of RA832A Switching 24V TRANSFORMER L2 HOT POWER LOAD 1 POWER SUPPLY PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED WHEN CONTROLLING TWO LOADS USE 3 AND 4 FOR LINE VOLTAGE LOAD AND 5 AND 6 FOR LINE OR LOW VOLTAGE LOAD IF USING LOW VOLTAGE USE A SEPARATE TRANSFORMER POWER LOAD2 M3820 Fig 9 Internal schematics and hookup for R847A 2 WIRE THERMOSTAT LOW VOLTAGE CLASS 2 To we L POWER LOAD 1 HOT Service and Checkout 1 Never use oil on any part of the relay coil or contacts 2 Keep the cover on the relay during normal operation and remove only for service and checkout
6. or the keyhole type mounting hole in the upper right corner Screw it down within about 1 8 in 3 mm of the surface 3 Hang the relay on the screw position the case and start the bottom screw 4 Tighten both screws WIRING All wiring must comply with all applicable electrical codes ordinances and regulations Follow any instructions furnished with the controlled equipment IMPORTANT 77e switching relay terminals are ap proved for use with copper wires only See Figs 2 through 9 for hookup diagrams for these relays When two or more devices are to be controlled in parallel the total current must not exceed the relay load rating Fig 11 is an internal view of the RA832A showing terminal locations and barriers Never connect load terminals to a load that takes more current than the amount listed in the electrical ratings on the relay 69 0791 3 Fig 1 Approximate mounting dimensions in in mm 4 1108 gt 5 4 45 29 i 22 DIAMETER 3 s 2 DIAMETER KEYHOLE TYPE i 13 DIAMETER MOUNTING HOLE E m TRI T 54 133 ey a RENE e 34 89 gt j 3110 4 3 2 10 amp 6 DIAMETER MOUNTING HOLE go 15 216 i 75 7 13 48 25 3 KNOCKOUT FOR 32 20 je 15 35 1 2 13 CONDUIT 3 M3823 Fig 2 Internal schematic and typical hookup for RA89A LOW VOLTAGE CLASS 2 2 WIRE THERMOSTAT RA89A JUMPER REMOVED TO LOAD HOT
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