Printed in U.S.A.
WIRING
All wiring should be done in accordance with local and national electrical codes and ordinances.
Fig. 2 Using Type 8A04-1 with Single Speed Motor
Fig. 1 Using Type 8A04-1 with Two-Speed Motor
N.C.
TO 24 VOLT
CONTROL CIRCUIT
RELAY
COIL
BLUE
BROWN
PLENUM FAN SWITCH
OR OTHER SWITCHING DEVICE
TWO-SPEED
MOTOR
HOT
LINE
N
N.O.
N.C.
TO 24 VOLT
CONTROL CIRCUIT
RELAY
COIL
BLUE
BROWN
SINGLE-SPEED
MOTOR
HOT
LINE
N
LINE VOLTAGE
LOW VOLTAGE
WIRING
PLENUM FAN SWITCH
OR OTHER SWITCHING DEVICE
TYPE 8A04-1 FAN RELAY
BLACK
TYPE 8A04A-1 FAN RELAY
BLACK
HI
COM
LO
RED
BLUE
BLUE
N.O.
RED
PART NO. 37-5493A
Replaces 37-9234
9514
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123
(314) 577-1300, Fax (314) 577-1517
9999 HWY. 48, MARKHAM, ONT. L3P 3J3
(905) 475-4653, FAX (905) 475-4625
SPECIFICATIONS
ELECTRICAL DATA
Switch Action: Single-Pole, Double-Throw
Norm. Open (N.O.): Black - Red
Norm. Closed (N.C.): Black - Brown
Coil Current: 0.28A. @ 24V.A.C., 60Hz
Mounting: By means of mounting tabs or 1/2" conduit hub.
Replaces: Honeywell R8225; General R4
Contacts:
Silver cadmium oxide
Contact Rating:
AMPS.
120VAC
240VAC
N.O.
N.C.
N.O.
N.C.
FULL LOAD
16
9.8
8
6.9
LOCKED ROTOR
96
58.8
48
41.4
INSTALLATION INSTRUCTIONS
TYPE 8A04-1
FAN RELAY
24V Coil, SPDT Switch Action
WHITE-RODGERS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
The Type 8A04-1 Fan Relay is for use with low voltage thermo-
stat to provide a 24 volt control circuit for operating a line voltage
fan motor or other load.
The relay has SPDT switch action to permit use with either single
or two-speed motor.
Diagrams presented on back of this sheet show various systems
that provide the required 24 volt power supply for operating the
coil of the Fan Relay.
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system, at main fuse
or circuit breaker box, until installation is complete.
Do not use on circuits exceeding specified voltages.
Higher voltages will damage control and could cause
shock or fire hazard.
PRECAUTIONS
CAUTION
If in doubt about whether your wiring is millivolt, line, or low
votage, have it inspected by a qualified heating and air condi-
tioning contractor, electrician, or someone familiar with basic
electricity and wiring.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and
ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could cause
the control to malfunction.
WARNING
