Taco SR501 User Manual

80
Aquastat Wiring
L1 L2
T T
L1
(HOT)
L2
(NEUTRAL)
LINE VOLTAGE
OIL BURNER RELAY
OR GAS VALVE
CIRCULATOR
ON BOILER
(IF ATTACHED)
B2 C2 B1ZR
TACO
ZONE
CONTROL
HONEYWELL L8124A & C OR EQUAL
120 VAC
INPUT
C1 ZC
END SWITCH
B1 B2
T T
L1
(HOT)
L2
(NEUTRAL)
CIRCULATOR
ON BOILER
(IF ATTACHED)
L1 C2L2
TACO
ZONE
CONTROL
HONEYWELL L8124B OR EQUAL
120 VAC
INPUT
C
MILLI-VOLTAGE
GAS VALVE
END SWITCH
TV T
Z
L1
(HOT)
L2
(NEUTRAL)
CIRCULATOR
ON BOILER
(IF ATTACHED)
L1
C2
L2
TACO
ZONE
CONTROL
HONEYWELL L8124E OR EQUAL
120 VAC
INPUT
C1
LOW VOLTAGE
GAS VALVE
END SWITCH
B1 B2

Taco SR501 Specifications

General

Model	SR501
Category	Control Unit
Input Voltage	120 VAC
Frequency	60 Hz
Switch Type	SPDT
Enclosure Rating	NEMA 1
Type	Relay
Operating Temperature	0°C to 40°C
Relay Output	24 VAC