Honeywell R182J User manual

1 60-2481—2J.H. • Rev. 10-94 • ©Honeywell Inc. 1994 • Form Number 60-2481—2
R182J, R482J, R845A, R847A,
R882J, RA89A, RA832A
Switching Relays
These relays provide intermediate or heavy
duty service in a wide variety of switching con-
figurations.
■Relayswith24Vcontrolcoils:Rl82J,R882J,R847A,
RA89A, RA832A, and R845A.
■Relays with line voltage control coils: R482J.
■Relays with internal 24V transformer: R182J,
RA89A, RA832A, R845A, and R847A.
■Relaysforusewithanexternal24Vsupply:R882J.
■Heavy duty relays: R847J.
■R847A has flexible internal leads to provide either
spst or spdt switching.
■RA832A has contacts for low voltage and
millivoltage (Powerpile®) use.
CONTENTS
Specifications .................................................2
Ordering Information.....................................2
Installation .....................................................3
Service and Checkout .....................................6

60-2481—2 2
R182J,R482J,R845A,R847A, R882J,RA89A, RA832A
SPECIFICATIONS • ORDERING INFORMATION
Specifications
IMPORTANT: The specifications given in this publica-
tion do not include normal manufacturing toler-
ances. Therefore, this unit may not exactly match the
listed specifications Also, this product is tested and
calibrated under closely controlled conditions, and
some minor differences in performance can be ex-
pected if those conditions are changed.
TRADELINE®MODELS
TRADELINE models are selected and packaged to
provide ease of stocking, ease of handling, and maximum
replacement value. TRADELINE model specifications are
the same as those of standard models except as noted below.
TRADELINE MODELS AVAILABLE:
R182J—120 and 240V models.
R482J—120 and 240V models.
R845A—120V models.
R847A—120 and 240V models.
RA89A—24V controller.
RA832A—120 and 240V models.
ADDITIONALFEATURES:TRADELINEpackwithcross
reference label and special instructions.
STANDARD MODELS: See Table 1.
TABLE 1—SWITCHING RELAY SPECIFICATIONS.
a See footnote on page 3.
Voltage Switch Control
Coil
Voltage
(Vac at Relay Coil Current Contact
Ratings (A)
Models Application (50/60 Hz) Action Circuit 50/60 Hz) (A) AFL ALR
R182J For 24V thermostat control 120 Dpdt 3-wire 24 0.40a7.4 44.4
of line voltage devices. 240 3.7 22.2
R482J Controlled by a line 120 2-wire 120 0.08 7.4 44.4
voltage controller 208/240 208/240 0.04 3.7 22.2
R845A For hot water zone control
systems or spst control of
two separate loads.
120 Dpst 24 0.40 7.4 44.4
R847A Provides switching for 120 22 100
high-current loads such as
cooling compressors. 240 10 50
R882J For use with separate low
voltage power source. 24 Dpdt 7.4 44.4
RA89A For switching one line
voltage load. 120 Spst 10.2 61.2
RA832A For switching two line 120 Dpst 7.4 44.4
voltage loads having a
common power source. 240 3.7 22.2
Ordering Information
When purchasing replacement and modernization products from your TRADELINE®wholesaler or distributor, refer to the Tradeline
Catalog or price sheets for complete ordering number, or specify—
1. Order number. 2. Accessories, if desired.
If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1. Your local Home and Building Control Sales Office (please check the white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell, Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 [phone]
In Canada—Honeywell Limited/Honeywell Limitee, 740 Ellesmere Road, Scarborough, Ontario M1P2V9. International Sales and
Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico,
Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

3 60-2481—2
R182J,R482J, R845A,R847A, R882J,RA89A, RA832A
SPECIFICATIONS • INSTALLATION
aIMPORTANT: The transformer on the R182 can over-
heat when used with a series 20 thermostat if the
total resistance of the thermostat (including thermo-
stat wire and thermostat contact 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.
See Table 2 for the ratings of built-in transformer (all
transformers are rated at 120/240V, 50/60 Hz).
TABLE 2—TRANSFORMER RATINGS.
Fig. 1—Approximate mounting dimensions in
in. [mm].
4
[114]
1
2
1
[48]
7
8
3
8[10]
3
8[10]
5
32
1 [29]
1
4
4 [108]
1
2
3 [89]
5
[133]
1
4
3
32 [2] DIAMETER
1
2[13] DIAMETER KEYHOLE TYPE
MOUNTING HOLE
7
8[22] DIAMETER
7
32 [6] DIAMETER MOUNTING HOLE
1
[48]
7
8
25
32 [20] KNOCKOUT FOR
1/2 (13) CONDUIT (3)
3
8
1 [35] M3823
2
[75]
15
16
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 completing installation, use these instructions
to check out product operation.
Transformer Rating (watts)
R847A 7.0
RA89A 5.0
RA832A —
R845A —
R182J 6.5
FINISH: Gray enamel.
KNOCKOUTS:
Case bottom: (2) RA89A, RA832A, R845A; (3) Rl82J,
R482J, R882J.
All models have 1 wiring hole in case top.
All knockouts are for 1/2 in. [12.7 mm] conduit.
APPROVALS:
UnderwritersLaboratoriesInc.Listed:RA89A;RA832A,
R882J; R845A: File no. E4436, Guide no. XAPX.
R482J: File no. E14480, Guide no. NLDS.
R847A: File no. SA481, Guide no. SDFY.
CanadianStandardsAssociationCertified:R482J;R882J;
R847A: File no. LR1620.
Installation
WARNING
ELECTROCUTION HAZARD.
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Transformer core not bonded.
Disconnect power supply before wring to prevent
electrical shock or equipment damage.

60-2481—2 4
R182J,R482J, R845A,R847A, R882J,RA89A, RA832A
INSTALLATION
MOUNTING
Forreplacement, mountthe relayinthesamelocation as
the old control. If this is a new installation, locate the relay
vertically on a solid wall or partition as near as possible to
the device to be controlled. Select a location that is easily
accessible for installation and service.
NOTE: To reduce possible transformer hum and relay
noise that can be amplified by mounting surfaces of
sheetmetal, plasterboard, and similar materials, place
rubber or felt washers between the case and the mount-
ing surface.
l. Position the relay and mark the mounting holes. See
Fig. 1.
2. Start a screw for the keyhole type mounting hole in
theupperright-hand corner.Turn downscrew withinabout
l/8 in. [3.2 mm] of the surface.
3. Hang the relay on the screw, position the case, and
start the bottom screw.
4. Tighten both screws.
IMPORTANT: The switching relay terminals are ap-
proved for use with copper wires only.
All wiring must comply with all applicable electrical
codes,ordinances, andregulations.Follow anyinstructions
furnished with the controlled equipment.
See Figs 2 through 10 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
currentthantheamountlistedin theelectricalratingsonthe
relay. See Table 3 for wiring length specifications.
Fig. 2—Internal schematic and typical hookup
for RA89A.
TABLE 3—WIRE LENGTH SPECIFICATIONS.
Fig. 3—Internal schematic and typical hookup
for RA832A.
L1
HOT
L2
TT
21 34
1
1
LOAD 2
(OPTIONAL)
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
RA832A
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
AND DISCONNECT MEANS AS REQUIRED. M3821
LOAD 1
XX
AUXILIARY TO LOW
OR MILLIVOLTAGE
(POWERPILE) LOAD
Fig. 4—Internal schematic and typical hookup
for R182J.
AWG Wire
Size Total Wire
Length
Length of Run to
Thermostat
(2 wires)
(Number) Feet Metres Feet Metres
22 120 38 60 18
20 200 61 100 30.5
18 300 91.5 1150 45.6
16 500 152.5 250 76
14 800 244 400 122
L1
(HOT) L2 1
2
1
2
N.O. N.C. N.O. N.C.
WX RB
L1 L2 4376
R182J
K1
K1
K1
K2
K2
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION AND
DISCONNECT MEANS AS REQUIRED.
N.O. CONTACTS MAKE BEFORE N.C CONTACTS BREAK,
AND N.C. CONTACTS MAKE BEFORE N.O. CONTACTS BREAK.
M8232
LOAD LOAD
3
OHMS
L1
HOT
L2
TT
21 34
1
1
TO LOAD
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
RA89A (SPST)
JUMPER
L1
HOT
L2
21 34
1TO LOAD
RA89A
JUMPER REMOVED
2
CONTROLLER
(IF USED) 1
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
AND DISCONNECT MEANS AS REQUIRED.
COMPLETE WIRING AS SHOWN ABOVE.
2M3819

5 60-2481—2
R182J,R482J, R845A,R847A, R882J,RA89A, RA832A
INSTALLATION
Fig. 5—Thermostat connections for R182J. Fig. 7—Schematic diagram showing R845A in
multizone, forced hydronic heating system.
This arrangement is suitable for any number
of additional zones.
Fig. 8—R845A hookup for controlling two
loads.
L1
HOT
L2
2
1
3
4
1
1
RA845A RELAY
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
IF USING LOW VOLTAGE, USE A SEPARATE TRANSFORMER. M3822
T
T
THERMOSTAT
ZONE 1
ZC
ZP
B1
B2
C1
C2
1
2
BURNER
CIRC.
LINE
THERM.
BURNER
CONTROL
CIRCULATOR
ZONE 1
2
3
THERMOSTAT
ZONE 2
CIRCULATOR
ZONE 2
TO ADDITIONAL R845A
RELAYS FOR OTHER ZONES
HYDRONIC HEATING
CONTROL TERMINALS
2
3
5
6
L1
HOTL2
TT
21 34
1
1
TO
POWER
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
R845A
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.
2
M3820
65
LOAD 1 TO
POWER LOAD 2
1 1
2
3
3
W
W
R
R
BWRB
BX
R182J
WRBX
R182J
WRBX
R182J
THREE-WIRE
LOW VOLTAGE
(SERIES 10)
THERMOSTAT
THREE-WIRE
LOW VOLTAGE
(SERIES 20)
THERMOSTAT
TWO-WIRE
LOW VOLTAGE
(SERIES 80)
THERMOSTAT
12
1
2
MAKES CONTACT ON TEMPERATURE FALL ONLY.
MAKES CONTACT ON BOTH A TEMPERATURE RISE AND FALL.
M8233A
JUMPER
Fig. 6—Internal schematic and typical hookup
for R482J.
12
3
3
3
1
2
R482J
N.O.
N.C. N.C.
537 6
N.O.
421 8
POWER SUPPLY. PROVIDE OVERLOAD PROTECTION
AND DISCONNECT MEANS AS REQUIRED.
CONTROLLER (IF USED) MUST BE SNAP ACTION OR
MERCURY SWITCH TYPE.
N.O. CONTACTS MAKE BEFORE N.C CONTACTS BREAK,
AND N.C. CONTACTS MAKE BEFORE N.O. CONTACTS BREAK.
M8234
CONTROLLER
L1
(HOT)
L2 TO LOAD TO LOAD
COM. COM.

60-2481—2 6
R182J,R482J, R845A,R847A, R882J,RA89A, RA832A
INSTALLATION • SERVICE AND CHECKOUT
Fig. 9—Internal schematic and hookup for
R847A. Fig. 11—Internal view of RA832A Switching Relay.
M3824
24V TRANSFORMER
RELAY
12
34
T
T
X
X
L1
(HOT)
L2
TT
L2 L1 34
1
1
TO
POWER
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
R847A
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.
10 AMP CONTACT RATING OR 20 AMP WHEN POLES
ARE CONNECTED IN PARALLEL.
2
M8231B
67
LOAD 1 TO
POWER LOAD 2
1 1
2
3
44
3
4
Fig. 10—Internal schematic and hookup for
R882J.
3
3
R882J
N.O.
N.C. N.C.
537 6
N.O.
4
21
8
M8235
CONTROLLER
LOAD LOAD
COM. COM.
LOW VOLTAGE
SOURCE
Service and Checkout
1. Neveruseoil onanypart oftherelay coilorcontacts.
2. Keep the cover on the relay during normal operation
and remove only for service and checkout.
3. Relay contacts require no cleaning; contacts close
with a wiping action and are self-cleaning. They may turn
black after being in service for some time; however, this
discoloration does not prevent proper operation.
4. Afterinstallationiscomplete,operatesystemthrough
at least one cycle from the controller to make certain the
relay controls the equipment as intended.
Home and Building Control Home and Building Control Helping You Control Your World
Honeywell Inc. Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 740 Ellesmere Road
Golden Valley, MN 55422 Scarborough, Ontario
M1P 2V9
Printed in U.S.A.
QUALITY IS KEY