Type SLC

Shipco® Logic Controller

Specialty Products

The Shipco® Type SLC is an economical method of automating functions on a Shipco® condensate, boiler feed, deaerator or vacuum unit. The SLC is a programmable NEMA 4X controller featuring a full color touchscreen display. Support for building automation protocols Modbus and BACnet are available. An SLC is factory programmed for the operating conditions of each unit.

If utilizing the Shipco® Transmitter with internal stainless steel float column, the SLC can monitor receiver status. Mounted from the top of the receiver, continuous level and temperature readings are sent to the SLC enabling it to perform various functions such as display status, read level set points, signal alarms, control pumps on a condensate unit, or control a make-up valve on a boiler feed unit.

SLC-C Features (Condensate Unit)

  • Live graphical and numeric indication for water level and temperature via the Shipco® Transmitter.
  • Operates up to 3 pumps.
    • Alternating control — Automatically changes lead pump on each cycle.
    • Manual control — LEAD-LAG(-LAG2)-OFF selector switch.
    • Test button bypasses control sequence to energize pumps until button is released.
    • Pump graphics change color to indicate status (Green = ON, Red = FAULT, Grey = INACTIVE).
    • Run Cycle Timers with manual reset.
  • Failure indication and protection.
    • High water alarm indicates overflow.
    • Low water alarm indicates leaking tank.
    • High temperature alarm indicates traps failed open.
    • High temperature shutoff protects pumps from cavitation.
    • Automatically adds cooling water to maintain operating temperature (optional).
    • Alarm ledger automatically logs any irregular operating conditions.
    • Loss of sensor signal indicators.

SLC-FWS Features (Boiler Feed and Deaerators)

  • Live graphical and numeric indication for water level and temperature via Shipco® Transmitter or differential pressure level transmitter and RTD temperature transmitter.
  • Operates up to 8 boiler feed pumps and 4 transfer pumps with alternating and manual control; pump graphics to indicate status; operate from boiler level signals, maintain feed pressure or with VFDs.
  • Support for modulating feed valves and steam regulators.
  • Failure indication and protection with various high & low water alarms; high & low temperature alarm. Shutoff for high temperature and low water. Alarms for routine maintenance and standby pumps and loss of sensor signal indicators.
  • VFD Max Efficiency Sequence optimizes efficiency by maintaining multiple feed pumps at low speed.
  • Support for additional modulating and solenoid feed valves; transfer pumps; flow meters on makeup, transfer and feed water headers.

Modulating Level Control

  • Modulating Feed Valve Control.
  • Differential pressure level transmitter or guided float level.
  • RTD temperature transmitter.
  • Alarms for level, temperature, pressure, etc.
  • Up to 2 solenoid feed valves.
  • Up to 2 modulating feed valves.

Deaerator, Surge Tank or Duo (Two-Compartment) System

  • Adds Pump Control.
  • Up to 8 boiler feed pumps and up to 4 transfer pumps.
  • Up to 2 solenoid feed valves (per tank).
  • Up to 2 modulating feed valves (per tank).
  • Up to 2 steam regulators.
  • Alarms for level, temperature, pressure, pump fault, routine maintenance, etc.
  • Alternation and manual sequencing.
  • On/Off operation from boiler level signals or to maintain feed pressure.
  • Continuous for automatic standby.
  • VFD Max Efficiency Sequence.
  • Total and service interval run timers.

SLC-BFS Features (Boiler Feed with Solenoid)

  • Live graphical and numeric indication for water level and temperature via the Shipco® Transmitter. (SLC-BFS does not have pump control.)
  • Makeup control based on water level (up to 2 solenoid valves).
  • Failure indication and protection.
    • High-high water alarm indicates overflow.
    • High water alarm adds response time.
    • Low water alarm adds response time.
    • Low-low water alarm indicates makeup failure.
    • Low water cutoff protects pumps from running dry.
    • High temperature alarm indicates trap or preheat failure.
    • High temperature shutoff protects pumps from cavitation (optional). Not beneficial on deaeration units.
    • Automatically adds cooling water to maintain operating temperature (optional).
    • Alarm ledger automatically logs any irregular operating conditions.
    • Loss of sensor signal indicators.

SLC-VC Features (Vacuum Condensate Unit)

  • Live Graphical and Numeric indication for water level, temperature, and Vacuum Pressure via Shipco® Transmitter, Vacuum Transmitter, Temperature limit switch.
  • Operates 1-2 Vacuum Pumps and 1-2 Condensate Pumps.
    • Condensate pumps turn on at high level and off at low level
    • Vacuum Pumps turn on at low vacuum (high psia) and off at high vacuum (low psia)
    • Alternating control —Automatically changes lead pump on each cycle
    • Manual control—Lead-Off-Lag selector switch
    • Test button bypasses control sequence to energize pumps until button is released
    • Pump graphics change color to indicate status status (Green = ON, Red = FAULT, Grey = INACTIVE).
    • Run Cycle Timers with manual reset
  • Failure indication and protection.
    • High water alarm indicates overflow
    • Low water alarm indicates leaking tank
    • High temperature alarm indicates traps failed open
    • High temperature shutoff protects pumps from cavitation
    • Automatically adds cooling water to maintain operating temperature (Optional)
    • Makeup switch adds water to Vacuum Hurling Chamber
    • Alarm ledger automatically logs any irregular operating conditions
    • Loss of sensor signal indicators

Hardware

  • Full-color touchscreen display
  • Ports: RJ45 serial port for RS232/RS485, Ethernet
  • Specific communication protocols: Modbus® RTU / ASCII, Modbus® TCP, BACnet IP or MS/TP