Honeywell RA889A User Manual page 7

A. FOR 24V THERMOSTAT CONTROL
RA889A
L1, (HOT)
L1 R(T)
NEUTRAL
L2
W(T)
C
COM
LINE VOLTAGE
CONTROLLED
X1
N.O.
OUTPUTS
X2
N.C.
B. FOR LINE VOLTAGE CONTROL
LINE VOLTAGE
RA889A
CONTROL
L1 R(T)
3
NEUTRAL
L2
W(T)
C
COM
X1
N.O.
X2
N.C.
C. FOR EXTERNAL SEPARATE LOW VOLTAGE POWER SOURCE
RA889A
R(T)
L1
NEUTRAL
L2
W(T)
1
C
COM
X1
N.O.
X2
N.C.
1 REQUIRED FOR OUTPUT LED OPERATION.
2 FOR SERIES 10 OR OTHER HARDWIRED ELECTRONIC 3-WIRE
THERMOSTATS.
3 WARNING! ELECTROCUTION HAZARD. POWER SUPPLY CAN
CAUSE SEVERE INJURY OR DEATH. DISCONNECT POWER BEFORE
WIRING OR SERVICING L1. POWERED RELAYS MUST BE WIRED AS
DRY CONTACTS.
Fig. 7. RA889A control options.
THERMOSTAT
R
W
C
OPTIONAL
2
LOW VOLTAGE
CONTROLLED OUTPUT
JUMPER
24V CONTROLLER
INPUT SUPPLY
M13317A
7
RA889A SWITCHING RELAY
68-0216—2