Installation Guide
R182J, R482J, YHR845A,R847A, RA89A, RA832A SWITCHING RELAYS
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2006 Honeywell International Inc.
69-2041 M.S. 12-06
Fig. 8. YHR845A hookup for controlling two loads.
Fig. 9. Internal schematics and hookup for R847A.
Fig. 10. Internal view of RA832A Switching Relay.
SERVICE AND CHECKOUT
1. Never use oil on any part of the relay coil or con-
tacts.
2. Keep the cover on the relay during normal opera-
tion and remove only for service and checkout.
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 relay controls the equipment as
intended.
L1
HOT
L2
TT
21
3
4
1
1
TO
POWER
LOW VOLTAGE (CLASS 2)
2-WIRE THERMOSTAT
YHR845A
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
M23783
65
LOAD 1
TO
POWER
LOAD 2
1 1
2
3
3
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.
2
M8231B
67
LOAD 1
TO
POWER
LOAD 2
1 1
2
3
3
M3824A
24V TRANSFORMER
RELAY
12
34
T
T
X
X