Brochure

11
S T E A M B O I L E R C O N T R O L S
250 Series
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No Moving Parts in Boiler Water
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Controls Boiler Feed Pump
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Maintains Recommended Water Level in Boiler
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Available with Water Column Body or for
Boilers with Separate Water Columns
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Accommodates Boilers to 250 PSI
Model 270SV
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Automatically Interrupts Pump or Feeder when Water
Contacts Probe
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Provides Contacts for Optional Alarm
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Ideal for Boilers, Receiver Tanks and Process Applications
Specifications 250 Series
Primary Relay 10 FLA, 60 LRA
Pump Relay 20 FLA, 120 LRA
Switch Contacts DPST
Power Consumption 13 VA
Max. Steam Pressure 250 PSI
Specifications Model 270SV
Power Consumption 7 VA
Switching Capacity .25hp @ 120 VAC
Resistive Load 20 A
Switch Contacts SPDT
Max. Steam Pressure 250 PSI
MODEL VOLTAGE MANIFOLD DESCRIPTION/OPERATION
250 120 VAC 250C Operates boiler feed pump to maintain water level between
250WC 120 VAC 1214C-1 middle and upper probes. Burner circuit contacts open if water
drops below bottom probe. Automatically restarts burner on return
of normal water level. Control box and (3) EL1214 probes included.
Pump Controller/LWCO – Commercial/Industrial
High Water Limit – Residential/Commercial/Industrial
MODEL VOLTAGE DESCRIPTION/OPERATION
270SV 120 VAC Interrupts power to pump or water feeder in high water condition. Provides
contacts for optional alarm. Includes EL1214-SV probe suitable for mounting in
standard black tee.