Standard Features:
The following standard features include many nationally known parts and controls that are quickly available at most supply houses, allowing for easy quick and easy repair and maintenance, which can dramatically reduce down time:
- UL labeled and construction per NEC
- 150 psi ASME Registered Pressure Vessel with CSD-1
- Four inch insulation
- Heavy duty steel housing
- Three inch NPT inlet and outlet
- Pressure gauge with cock
- Digital electronic temperature readout except on 1&2 step units
- Drain valve
- Incoloy sheathed elements @ 75 WSI
- Integral electric control panel with key-locked doors
- Internal branch circuit fusing
- Magnetic contactors rated at 500,000 cycles
- Main supply circuit lugs
- 120 volt fuse control transformer
- On/Off switch with pilot light
- Manual limit toggle switch for each step
- Status pilot light for each step
- Probe-type low water cut off (Manual Reset with pilot light and test circuit
- Adjustable auto reset and manual reset high limit cutoffs
- Automatic temperature control via
- 1 and 2 step units: On/Off temperature switches
- 3 and 4 step units: Electronic multi-stage control
- 5 step units and greater: Proportional Solid State Step Control
- Main power disconnect
- Fused disconnect or automatic breaker
- Shunt trip circuit interrupter
- Ground fault detection system
- Ammeter (1 or 3 phase)
- Voltmeter (1 or 3 phase)
- Watt-hour meter
- Time clock
- Alarm buzzer with silencing switch
- Safety door interlock
- Low temperature switch/alarm
- Building automation systems interface
- Flow switch
- Auto air vent
- Manual limit toggle switches (one per step)
- High/low pressure switches/alarms
- Auxiliary low water cut off (Float or probe and manual or auto reset
- Temperature gauge 3”
- Oversize inlet/Outlet connections
- Linear sequence step control
- Outdoor reset control




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