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OPERATION
Maximum Pressure: 150 psi (10.5 kg/cm
Electrical Ratings
PumpCircuit Rating (Amperes)
Voltage
Full Load
120 VAC
7.4
240 VAC
3.7
Enclosure rating: NEMA 1 General Purpose
Settings and Differential Pressures
Values are ± 8" (3.2mm).
Series 150S, 157S
Pressure
Setting
Pump Off
0 psi
Pump On
(0 kg/
Burner On
cm
2
)
Burner Off
Pump Off
150 psi
Pump On
(10.5 kg/
Burner On
cm
2
)
Burner Off
2
150 psi (10.5 kg/cm
) Levels
3
/
"
1
8
DIFFERENTIAL
(35mm)
PUMP
OFF
BURNER
OFF
3
/
"
4
DIFFERENTIAL
(19mm)
PUMP OFF
PUMP ON
7
/
"
8
DIFFERENTIAL
(22mm)
BURNER ON
BURNER OFF
2
2
)
Locked Rotor
Pilot Duty
44.4
345 VA at
120 or 240 VAC
22.2
Approximate
Distance Above
Cast Line
Differential
In. (mm)
In. (mm)
15
/
(24)
16
5
/
(8)
16
5
/
(16)
8
5
/
(16)
8
3
/
(16)
8
1
/
(6.4)
4
3
1
/
(41)
8
3
/
(19)
4
5
/
(16)
8
7
/
(22)
8
7
/
(22)
8
0
(0)
NORMAL BOILER
WATER LINE
Alarm Circuit Rating
Voltage
Amps
120 VAC
1
240 VAC
1/2
Model 150S-MD, and 157S-MD
Pressure
Setting
Pump Off
0 psi
Pump On
(0 kg/
cm
2
)
Burner Off
Pump Off
150 psi
(10.5 kg/
Pump On
cm
2
)
Burner Off
150 psi (10.5 kg/cm
13
/
"
1
16
DIFFERENTIAL
(46mm)
PUMP
OFF
BURNER
OFF
3
/
"
4
DIFFERENTIAL
(19mm)
PUMP OFF
PUMP ON
Motor Horsepower
Voltage
Hp
120 VAC
1/3
240 VAC
1/3
Approximate
Distance Above
Cast Line
Differential
In. (mm)
In. (mm)
15
/
(24)
16
3
/
(16)
8
9
/
(14)
16
0
(0)
N/A
7
1
/
(37)
16
3
/
(19)
4
/
(17)
11
16
N/A
-
/
(-16)
3
8
2
) Levels
NORMAL BOILER
WATER LINE
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