Honeywell R845A ユーザーズマニュアル

60-2481—2

6

R182J, R482J, R845A, R847A, R882J, RA89A, RA832A

INSTALLATION • SERVICE AND CHECKOUT

M3824

24V TRANSFORMER

RELAY

L1 
(HOT)

L2

T

T

L2

L1

3

4

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

6

7

LOAD 1

TO 
POWER

LOAD 2

1

1

2

3

4

4

3

4

3

3

R882J

N.O.

N.C.

N.C.

5

3

7

6

N.O.

4

2

1

8

M8235

CONTROLLER

LOAD

LOAD

COM.

COM.

LOW VOLTAGE 
SOURCE

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.

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. After installation is complete, operate system through

at least one cycle from the controller to make certain the
relay controls the equipment as intended.

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.