Honeywell RA889A Manual de Usario

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PRODUCT DATA
68-0216-2
® U.S. Registered Trademark
Copyright © 2000 Honeywell Inc. All Rights Reserved
RA889A
Switching Relay
APPLICATION
The RA889A 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.
FEATURES
High load switching capability.
Troubleshooting LED.
Push-to-test button.
Replaceable transformer fuse.
Long-life DC relay drive control technology.
Relay for use with external 24 Vac or 24 Vdc supply,
with line-voltage control, or with internal 24V
transformer supply.
One model replaces many Honeywell models. (See
Table 1 Replacement Cross Reference.)
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Ordering Information ........................................................ 2
Installation ........................................................................ 3
Mou ti g .... ..... ..... .... ..... .... ..... ..... .... ..... .... ..... ..... ..n n . . . . . . . . . . . . . 3
Wiring ............................................................................... 4
Operation .......................................................................... 4
Checkout .......................................................................... 4
Tr ub e ho ti g .... .... ..... .... ..... ..... .... ..... .... ..... ..... ..o l s o n . . . . . . . . . . . 4
RA889A SWITCHING RELAY
68-0216—2 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.
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 (check white pages of your phone directory).
2. Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 3N7.
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.
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit may not exactly match the listed specifica-
tions. Also, this product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
TRADELINE® Model: RA889A Switching Relay with 24V
controller for switching one-line voltage load.
Electrical Ratings:
Voltage: 120 Vac, 60 Hz.
Thermostat Heat Anticipator Setting: 0.12A.
Transformer Ratings:
Primary: 120 Vac, 60 Hz.
Secondary: 24 Vac, 12 VA maximum, 9 VA available for exter-
nal loads. Secondary protected by replaceable 1A automo-
tive fuse.
Contact Ratings: 15 AFL, 30 ALR; maximum connected load
2000 VA.
Temperature Ratings: Ambient: -20°F to 120°F (-29°C to
49°C).
Humidity Ratings: 0 to 90% rh, non-condensing.
Switching Action: Spdt, plus Powerpile® rated low voltage
Spst relay.
Electrical Connections: No. 8 captivated wire clamp screw
terminals.
Finish: Zinc plated steel.
Knockouts:
Case Bottom: Three 1/2 in. (13 mm) for conduit box.
Case Top: One 7/8 in. (22 mm) for wiring.
Approvals:
Underwriters Laboratories Inc. Listed: File no. E4436, Guide
no. XAPX.
Canadian Underwriters Laboratories Inc. Listed: Guide no.
XAPX7.
Dimensions: See Fig. 1.
Fig. 1. RA889A dimensions in in. (mm).
7/32 (6)
DIAMETER
MOUNTING
HOLE
KNOCKOUT
FOR 1/2 (13)
CONDUIT (3)
1-1/16
(27) 1-1/4 (32)
2-3/16
(56)
3-1/2
(89)
3-11/16 (94) 5/16
(8)
5/16 (8)
6-1/4
(159)
5-3/8
(137)
1-3/8 (35)
4-7/16 (118)
2-1/8
(54)
3/16 (5) DIAMETER
3/8 (10) DIAMETER
7/8(22)
DIAMETER
KEYHOLE
TYPE
MOUNTING
HOLE
M17512
RA889A SWITCHING RELAY
3 68-02162
Cross Reference: The RA889A replaces many Honeywell
models. See Table 1 for additional cross reference
information.
Thermostat Compatibility: All Honeywell electromechanical
and most electromechanical 2- or 3-wire. Select thermostats
with 0.12A heating anticipator setting to match the electrical
rating of the switching relay.
Replacement Parts:
32002190-001 Replacement Relay.
Relay Fuse: 1A automotive fuse.
Table 1. RA889A Replacement Cross Reference.
a RA889A has one set of COM/N.O. relay contacts. Use R8845U if two sets are required.
b RA89A has lower output load rating. Check load requirements.
INSTALLATION
When Installing this Product . . .
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condi-
tion.
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 techni-
cian.
4. After installation is complete, check out product opera-
tion as provided in these instructions.
5. Follow local codes for installation and application.
WARNING
Electrical Shock 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 sur-
faces such as sheet metal, 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.
2. Start a screw in the upper right corner for the keyhole
type mounting hole. 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.
Manu-
facturer Model
Connections
Comments
Input Line
Voltage Power Relay
Low
Voltage
Relay Thermostat
Honeywell RA889A L1 L2 COM N.O. N.C. X1 X2 W(T) R(T) C
Honeywell RA89Aa1 2 3 4 — — T T — —
R182Aa1 2 7 8 B R See Fig. 6
thermostat
connections
Jumper L1 to COM and between X1
and R(T) in RA889A.
R182B 1 2 8 6 7 B R Requires jumper between X1 and
R(T).
R182Cb1 2 8 6 7 B R
R482B 1 2 8 6 7 — — Jumper R(T) to
W(T).
Line voltage switched inputs go to L1
and L2. See Fig. 7B.
R482Cb1 2 8 6 7 — —
R482Jb1 2 6 8 7 — — Line voltage inputs go to L1 and L2.
See Fig. 7B.
R882Aa— — 8 7 — — W B— —
R882B — — 8 6 7 — — W B
R882Cb— — 8 6 7 — — W B
R882Jb— — 6 8 7 — — 1 2

Especificaciones del producto

Marca: Honeywell
Categoría: Cambiar
Modelo: RA889A

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