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®
Chromalox
Installation,Operation
4 FXTH
and
PN401
RENEWAL PARTS IDENTIFICATION 161-051300-001
FEBRUARY, 2008
Chromalox Type FXTH Flexible Tank Heater
Vent Tube
Thermowell
Heater
Bolts. See
Terminal
Note 2
Housing
3/4” NPT
Heater Terminal Housing
9-3/16”
2”
Gasket (Furnished)
2-1/2” NPT 6-1/4”
Manhole Adapter (Optional)
Customer Manhole Cover
Thermowell
Lifting Cables
Riser 14’
Overtemperature
Sensor
12”
8”
Three Tube
Two Tube Single Tube
B
Heater Assembly
Heater Assembly Heater Assembly
C
Note
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GENERAL The Chromalox FXTH Flexible Tank Heater is designed for heat- vertical wall mounted brackets and hasp and staple for padlocking. ing viscous liquids in large steel, concrete or fibrous glass tanks with Electrical components include: Failsafe overheat device, master cir- normal manhole entry. Standard equipment with every heater cuit-breaker, contactor(s), relay(s), selector switch, pilot lights, fuses includes flexible pipe and 14’ riser(s), two lifting cables, 4” high and a 120-volt con
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PREPARATION OF TANK TO RECEIVE HEATER Manhole Cover Adapter Assy. 9-1/2” ± 1/4” Dia. Hole 8 - 3/8” - 11 Drilled and 13” Dia. By Customer Tapped Equally Spaced (See Note 1) 9-1/2” ± 1/4” Dia. Hole Holes on 11-3/4” B.C. By Customer By Customer 22-1/2” Conduit Opening 8 - 3/8” - 11 Drilled and Tapped Equally Spaced Manhole Cover Holes on 11-3/4” B.C. 3/8” Min. 13-1/2” O.D. 3/4” By Customer Machining of Manhole Cover to Receive 1/4” 8” FXTH Immersion Heater Terminal Box Manhole Cover 1. Surface on t
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INSTALLATION OF HEATER ASSEMBLY IN TANK (cont’d.) 5. Begin lowering heater into tank as per Figure G, Step 1 thru 3 NOTE: In tanks where the configuration does not allow following (end manhole) or Figure H, Step 4 thru 7 (center manhole). Once the above procedure, or in above ground tanks, ask for Factory rec- the heater has touched bottom, use pulling wire (front lifting ommendations for installation of heater. cable) to pull heater toward far end of tank. 6. Before lowering back end of heater,
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INSTALLATION OF HEATER ASSEMBLY IN TANK (cont’d.) G. Carefully unwind and straighten thermostat capillary tube. The I. If temperature indicator is employed, wire in accordance with capillary must be reasonably straight. Be absolutely certain the Figure J. Use wire size as recommended for connecting to control bulb is seated at bottom of well. Carefully coil any excess capil- center. lary and position next to thermostat and away from electrical con- J. Install control wiring through 3/4" conduit
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ELECTRICAL AND OPERATIONAL CHECKS A. Having circuit breaker and power switch in “off” position, make E. Turn off circuit breaker and power switch, then re-set thermostat sure proper voltage supplied matches voltage of control panel and to desired setting for normal operation. The thermostat contains a elements. factory adjusted stop which prevents settings above 150°F. B. Adjust controlling thermostat in terminal housing to a 50°F read- F. If low temperature alarm feature is provided, set this c
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OPTIONAL EQUIPMENT Temperature Indicators (Suffix “D”) (FXTH Heater Assembly and Control Center will have It is very important the resistor wire be properly soldered after suffix "D" e.g. FXTH-11206D, WCG15-213D) adjusting. MOUNTING NOTE: When Thermocouples with external resistance higher than 10 Temperature indicators are balanced for accurate reading in a normal ohms will be used, a special pyrometer will be required. The use of vertical position unless specified otherwise. All pyrometers labe
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RENEWAL PARTS IDENTIFICATION What the Catalog Number means: 240 Voltage 480 FXTH – 2 12 12 WCC – 10 - 423 Catalog No. kW Element Part Number Element Part Number 1 2 3 4 1 2 345 1 – Flexible Tank Heater 1 – OCC - Oil Tight & Dust Tight Control Center FXTH-11206 6 063-115244-004 063-115244-002 2 – Number of Tubes WCC - Weatherproof Control Center FXTH-11508 8 063-115244-003 063-115244-004 3 – “B” Dimension 2 – Maximum Amperage per Circuit FXTH-11510 10 063-115244-0
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REPLACEMENT PARTS FOR OCC AND WCC CONTROL CENTER (cont’d.) Qty. Description Part Number Qty. Description Part Number OCC or WCC-15-413, 480V, 1-3ø, 10 & 12 kW OCC or WCC-25-233, 240V, 3-3ø, 30 kW 1 Circuit Breaker, 480V, 20 Amp, 3 pole........................104-071818-018 1 Circuit Breaker, 240V, 100 Amp, 3 pole......................104-071818-014 1 Contactor, 600V, 20 Amp, 3 pole................................072-120812-005 3 Contactors, 600V, 30 Amp, 3 pole ............................072-12
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REPLACEMENT PARTS FOR OCC AND WCC CONTROL CENTER (cont’d.) Qty. Description Part Number Qty. Description Part Number OCC or WCC-35-413, 480V, 1-3ø, 27 kW OCC or WCC-55-213, 240V, 1-3ø, 21 kW 1 Circuit Breaker, 480V, 45 Amp, 3 pole........................104-071818-023 1 Circuit Breaker, 240V, 70 Amp, 3 pole........................104-071818-011 1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002 1 Contactor, 600V, 60 Amp, 3 pole................................072-1208
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Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. 1347 HEIL QUAKER BLVD., LAVERGNE, TN 37086 Phone: (615) 793-3900 www.chromalox.com
