Cold Weather Catalog - Chromalox Precision Heat and Control

ControlsFreeze ProtectionHeat Trace Panels• Standard NEMA 4 Enclosures• NEMA 4X Stainless SteelEnclosure Option• Hand/Off/Auto Selector Switch• 12, 18, 20, 30, and 42Position Panelboards• 15, 25, 30, and 40 Amp Singlepoleand Double-pole 30 mAGround Fault Thermal-MagneticCircuit Breakers• 100 and 225 Amp Main Bus• Single-phase 120/240 Vac• Three-phase 120/208 Vac4-Wire• Three-phase 277 Vac 4-Wire• 100 and 250 Amp MainDisconnect Switch Option• Ambient and Line SensingControl• WeatherTrace SentinelMonitoring with Common Alarmand Re-Ring Feature*• Z-Purge Pressurization Systemfor Class 1, Division 2 Option• Enclosure Heater Option forSubzero Ambients• UL and cUL Third PartyApprovals* The re-ring feature allows the WeatherTrace panelto communicate additional alarm condidtions in thesystem by momentarily clearing and resetting the alarmoutput contact. The customer's monitoring device suchas a PLC or DCS would interpret this condition to alertthe operators of an additional alarm occurring.162DescriptionThe Chromalox FPAS, FPLS, FPASM, andFPLSM series freeze protection heat tracepanels offer power-distribution, ground-faultprotection, individual circuit alarming, line andambient sensing control.The panels are housed in NEMA 4 enclosuresfor indoor/outdoor applications. NEMA 4X 304stainless steel enclosures may be selected asan option for more harsh environments.The standard models are available in 12, 18,20, 30, and 42 position panelboards with 100and 225 amp bus ratings in Single and Three-Phase confi gurations.Branch circuit breakers are available in 20,25, 30, and 40 amp single-pole and two-poleconfi gurations with 30 mA ground-fault equipmentprotection.FPAS – Freeze Protection Ambient SensingSeriesThe FPAS series controls multiple heat tracecircuits via an ambient sensing externalthermostat, external electronic controller orvia an ambient sensing, door mounted 1601Econtroller. Chromalox recommended controllersinclude: RTAS, RTAS-EP, B100, E100 orthe 1601E microprocessor controller.The FPAS may be operated in two modes;automatically with the external controller, or inmanual override via the Hand/Off/Auto selectorswitch.FPLS – Freeze Protection Line Sensing MonitorSeriesThe FPLS series controls each heat trace linewith individual Chromalox RTBC, RTBC-EP,E-100 or E121 pipe line sensing controls. Eachcircuit should be controlled by an individualsensor/controller. Depending on the application,controllers can switch more that onecircuit.FPASM Model ShownFPASM – Freeze Protection Ambient SensingMonitor SeriesThe FPASM WeatherTrace with the SentinelSystem, continually monitors the supplyvoltage to each individual heat trace circuit.Loss of voltage or a ground fault condition willtrigger an automatic alarm condition, alertingplant personnel of critical process problemsand reducing downtime. An annunciator panelthen identifi es the faulted zone and a CommonAlarm is activated with the re-ring feature.*The FPASM series controls multiple heattrace circuits via an ambient sensing externalthermostat, external electronic controller orvia an ambient sensing, door mounted 1601Econtroller. Chromalox recommended controllersinclude: RTAS, RTAS-EP, B100, E100 orthe 1601E microprocessor controller.The FPASM may be operated in two modes;automatically with the external controller or inmanual override via the Hand/Off/Auto selectorswitch.FPLSM – Freeze Protection Line SensingMonitor SeriesThe FPLSM series controls heat trace lineswith individual Chromalox RTBC, RTBC-EP,E100 or E121 pipe line sensing controls. Eachcircuit should be controlled by and individualsensor/controller. Depending on the application,controllers can switch more that onecircuit.The FPLSM is identical to the FPLS Plug. Itfeatures the WeatherTrace Sentinel whichcontinually monitors the supply voltage toeach individual heat trace circuit without theneed for additional staff. Loss of voltage or aground fault condition triggers an automaticalarm condition, alerting plant personnel ofcritical process problems and reducing downtime.An annunciator panel then identifi es thefaulted zone and a Common Alarm is activatedwith the re-ring feature.*