Taco SR501 User Manual

84
Aquastat Wiring
LINE VOLTAGE
OIL BURNER RELAY
OR GAS VALVE
CIRCULATOR
ON BOILER
(IF ATTACHED)
C1
B2
B1
HONEYWELL L8148A OR EQUAL
C2
3
L1 L2
T T
L1
(HOT)
L2
(NEUTRAL)
120 VAC
INPUT
T
THERMOSTAT
(IF INDEPENDENT ZONE)
R
W
B
B
R
L6006
LOW
LIMIT
CONTROLER
B2
TACO
SWITCHING
RELAY
ZC ZR N HXX
END SWITCH
L1 L2
B2
C2
B1
L1
(HOT)
L2
(NEUTRAL)
OIL BURNER
AND
IGNITION
CIRCULATOR
ON BOILER
(IF ATTACHED)
T T
FF
HONEYWELL L8182D OR EQUAL
120 VAC
INPUT
ZC
ZR
C1
CAD CELL
T
THERMOSTAT
(IF INDEPENDENT
ZONE)
TACO
SWITCHING
RELAY
ZC ZR N HXX
END SWITCH

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