PN401
FXTH
161-051300-001
FEBRUARY, 2008
4
and
Installation, Operation
RENEWAL PARTS IDENTIFICATION
Chromalox
®
Chromalox Type FXTH Flexible Tank Heater
Amp / Tube
Catalog Number of Recommended
Minimum Heater Heater No. Tubes Approx
OCC or WCC Control Centers
Manhole Length Width and Catalog Net Wt.
kW 240 480 Size (In.) B C Circuits Number* Lbs. 240V 480V
*Suffix letters with FXTH Catalog Number indicate modification from standard as follows:
V= Voltage, W= Wattage, A= change in riser length, R= low temperature alarm contactor, D= temperature indicator and XX = special.
Thermowell
3/4” NPT
Thermowell
Riser
Three Tube
Heater Assembly
Two Tube
Heater Assembly
Single Tube
Heater Assembly
Heater
Terminal
Housing
2-1/2” NPT
6-1/4”
2”
Vent Tube
Notes:
1. Min. fluid Depth for safe heater operation is 12”.
2. 5/8” - 11 x 1 in. long hex head bolts. 8 required.
Heater Terminal Housing
Gasket (Furnished)
Manhole Adapter (Optional)
Customer Manhole Cover
Lifting Cables
Overtemperature
Sensor
C
9-3/16”
14’
B
8”
12”
Bolts. See
Note 2
6 15 7 14 12’3-3/4” 5-1/4 1 FXTH-11206 79 (OCC or WCC)-15-213 WCC-10-413
8 19 10 14 15’3-3/4” 5-1/4 1 FXTH-11508 97 WCC-25-213 WCC-10-413
10 24 12 14 15’3-3/4” 5-1/4 1 FXTH-11510 97 WCC-25-213 WCC-15-413
12 29 14 14 15’3-3/4” 5-1/4 1 FXTH-11512 97 WCC-30-213 WCC-15-413
10 24 12 14 20’3-3/4” 5-1/4 1 FXTH-12010 127 WCC-25-213 WCC-15-413
12 29 14 14 20’3-3/4” 5-1/4 1 FXTH-12012 127 WCC-30-213 WCC-15-413
15 36 18 14 20’3-3/4” 5-1/4 1 FXTH-12015 127 WCC-40-213 WCC-20-413
18 43 22 14 27’1” 5-1/4 1 FXTH-12718 170 WCC-45-213 WCC-25-413
21 51 25 14 30’1” 5-1/4 1 FXTH-13021 190 WCC-55-213 WCC-30-413
24 58 29 14 32’1” 5-1/4 1 FXTH-13224 205 WCC-60-213 WCC-30-413
27 65 33 14 35’1” 5-1/4 1 FXTH-13527 225 WCC-70-213 WCC-35-413
30 72 36 14 40’1” 5-1/4 1 FXTH-14030 250 WCC-75-213 WCC-40-413
12 15 7 18 12’3-3/4” 10-1/4 2 FXTH-21212 157 WCC-15-223 WCC-10-423
16 19 10 18 15’3-3/4” 10-1/4 2 FXTH-21516 194 WCC-25-223 WCC-10-423
20 24 12 18 15’3-3/4” 10-1/4 2 FXTH-21520 194 WCC-25-223 WCC-15-423
24 29 14 18 15’3-3/4” 10-1/4 2 FXTH-21524 194 WCC-30-223 WCC-15-423
20 24 12 18 20’3-3/4” 10-1/4 2 FXTH-22020 253 WCC-25-223 WCC-15-423
24 29 14 18 20’3-3/4” 10-1/4 2 FXTH-22024 253 WCC-30-223 WCC-15-423
30 36 18 18 20’3-3/4” 10-1/4 2 FXTH-22030 253 WCC-40-223 WCC-20-423
36 43 22 18 27’1” 10-1/4 2 FXTH-22736 340 WCC-45-223 WCC-25-423
42 51 25 18 30’1” 10-1/4 2 FXTH-23042 380 WCC-55-223 WCC-30-423
48 58 29 18 32’1” 10-1/4 2 FXTH-23248 405 WCC-60-223 WCC-30-423
54 65 33 18 35’1” 10-1/4 2 FXTH-23554 440 WCC-70-223 WCC-35-423
60 72 36 18 40’1” 10-1/4 2 FXTH-24060 500 WCC-75-223 WCC-40-423
18 15 7 24 15’3-3/4” 15-1/4 3 FXTH-31218 236 WCC-15-233 WCC-10-433
30 24 12 24 15’3-3/4” 15-1/4 3 FXTH-31530 291 WCC-25-233 WCC-15-433
36 29 14 24 15’3-3/4” 15-1/4 3 FXTH-31536 291 WCC-30-233 WCC-15-433
30 24 12 24 20’3-3/4” 15-1/4 3 FXTH-32030 370 WCC-25-233 WCC-15-433
36 29 14 24 20’3-3/4” 15-1/4 3 FXTH-32036 370 WCC-30-233 WCC-15-433
45 36 18 24 20’3-3/4” 15-1/4 3 FXTH-32045 370 WCC-40-233 (OCC or WCC)-20-433
© 2010 Chromalox, Inc.
Specifications – Type FXTH
GENERAL
UNCRATING AND HANDLING OF HEATER
The Chromalox FXTH Flexible Tank Heater is designed for heating viscous liquids in large steel, concrete or fibrous glass tanks with
normal manhole entry. Standard equipment with every heater
includes flexible pipe and 14’ riser(s), two lifting cables, 4” high
sludge legs and a 50-250° non-indicating thermostat with well,
overtemperature probe and weatherproof terminal housing.
The Control Center OCC (NEMA XII, oil and dust-tight construction) or WCC (NEMA IV, weather-resistant construction) is
designed for controlling the temperature of the viscous liquids by regulating the FXTH's on-off cycle. It is mounted remotely with standard
components consisting of a NEMA XII or NEMA IV enclosure with
vertical wall mounted brackets and hasp and staple for padlocking.
Electrical components include: Failsafe overheat device, master circuit-breaker, contactor(s), relay(s), selector switch, pilot lights, fuses
and a 120-volt control circuit transformer.
IMPORTANT-Before attempting to uncrate or install the FXTH
heater, read and understand all of the following instructions. Proper
handling is absolutely necessary to obtain satisfactory operation. All
electrical connections are to be made by a qualified electrician. To
avoid excessive separation, stratification, sludge formation, etc., in
your FXTH heated storage tank, consult a qualified oil supplier
regarding selection and blending of fuel oils.
Heater Front End
Front Lifting Cable
Overtemperature
Probes
Rear Lifting Cable
Heater
Back End
Flexible
Risers
Terminal Housing
Riser Unions
Sludge Leg Base Plates
1. Mechanical
The heater assembly has undergone a rigorous leak test just prior
to shipment from the factory. Visually inspect all joints and flex
tube surfaces to insure no mechanical damage has incurred during
shipping. Contact carrier if heater shows signs of damage. Do not
attempt to install heater if damage is evident. Do not attempt to
tighten or remove any of the threaded fittings in the flexible tube
assembly. If the sealing performed at the factory has been broken.
the unit must undergo another complete leak test supervised by an
Authorized Chromalox Serviceman before installing in tank.
2. Electrical
A. Open control unit cover and examine electrical components
for any damage which may have been incurred during shipment. Contact carrier and report any damage noted.
B. CAUTION: Retighten all electrical connections and mounted
components which may have loosened during shipment.
PRE·INSTALLATION CHECK OF HEATER
NOTE: Inspect shipping crates before opening. Contact the carrier if
damage is evident.
1. Check to see that all components are included. FXTH immersion
heaters are shipped as subassemblies consisting of (a) flexible
heater with riser tubes, (b) terminal housing, (c) thermowells and
vent tube, and (d) control unit (if ordered).
2. To unpack flexible heater, keep crate in upright and horizontal
position when removing heater. Only top boards of crate need to
be removed.
3. When lifting heater assembly, do not bend heater to radius less
than 22". Heaters should be flexed in vertical plane only. This is
a plane perpendicular to the sludge leg base plates. Bending in
horizontal plane can damage internal ceramic insulators.
4. Use several people to lift heater - the number depends on the
length and weight of the heater. As a guide, four men should be
used to lift and handle a dual tube 20 ft. unit.
5. Do not put any stress on the flexible riser tubes. These are not
designed for supporting weight. The unit must be lifted by either
the 3" heater tubes or the steel lifting cables furnished with heater
and located at both ends of heater. See Figure A.
6. Set heater in upright position on flat surface. Avoid any lateral
bending.
CAUTION: Never drop heater or subject it to mechanical shock.
Figure A
2
PREPARATION OF TANK TO RECEIVE HEATER
INSTALLATION OF HEATER ASSEMBLY IN TANK
Manhole Cover
3/8” Min.
8 - 3/8” - 11 Drilled and
Tapped Equally Spaced
Holes on 11-3/4” B.C.
22-1/2”
9-1/2” ± 1/4” Dia. Hole
By Customer
Conduit
Opening
13” Dia.
(See Note 1)
By Customer
Figure B
Figure C
Machining of Manhole Cover to Receive
FXTH Immersion Heater Terminal Box
1. Surface on top side of Tank Cover must be suitable for good gasket seating. The 13"
dia. area containing the gasket seat must be free of loose scale and rust and shall have
a maximum surface roughness of 250 RMS.
2. Bolt hole orientation to axis of storage tank is not important.
Machining of Manhole Cover to Receive
FXTH Immersion Heater Adapter Assembly
1. This Dimension is for Storage Tank Clearance Hole.
1. Double check internal dimensions of tank to be sure heater legs
will stand straight on portion of tank bottom to its full length
when in its operating position.
2. Remove any obstructions which may interfere with proper instal-
lation of heater into tank.
3. Clean manhole area to eliminate dirt and water which can be
picked up by heater during its insertion into tank.
4. Time the installation so oil level in tank is half full or less. This
will greatly facilitate insertion and positioning of heater.
5. Check sludge in bottom of tank to ensure it does not interfere with
operation of heater. Standard FXTH heaters are supplied with 4”
sludge legs. Sludge in excess of 3” must be removed before
installing heater. Sludge must not touch the corrugated heating
surface of the immersion unit.
6. Check point of tank suction to make sure it is 12” or more off bot-
tom of tank. This will insure a minimum liquid level of 12” and
prevent heater from being uncovered while in operation. The
heater must not be energized unless it is completely submerged.
7. Machine manhole cover per Figure B or install optional terminal
housing manhole adapter to manhole cover or storage tank per
Figure C. All welds must be liquid tight.
DANGER: Hazard of Fire. If adapter is to be welded directly into
tank, remove flammable liquids, and vent all combustible gases or
vapors from storage tank before performing welding operations.
1. If tank is type with manhole located near end of tank rather than
in center, install a temporary pulling cable at far end of tank
through any available port such as (l) fill pipe, (2) suction port, (3)
auxiliary manhole, etc., and thread the cable through the tank and
out the manhole to be used for installing the heater. The pulling
cable will be used to pull front lifting cable through auxiliary port
and then pulling cable is disconnected. See Figure D.
2. Align heater assembly along centerline of tank having rear end
(riser end) of assembly farthest from manhole. Note: On tanks
with manhole near end rather than in center heater assembly
should be placed on side of manhole farthest from end of tank.
See Figure E.
3. Tie the riser(s) with rope or suitable line at a point just below the
union on riser(s). Anchor rope to any convenient nearby anchoring point. Length of rope should be sufficient to allow riser(s) to
be inserted into tank just inside manhole but not below oil level.
CAUTION: If oil gets into riser, it will cause failure of the heating element.
4. Carefully turn heater over, feet upward, taking care it is flexed in
only the one plane. (See Figure F.) Support must be maintained on
riser end of heater to avoid overstressing riser(s) until heater is
lowered into tank.
Manhole Cover Adapter Assy.
13-1/2” O.D.
8 - 3/8” - 11 Drilled and
Tapped Equally Spaced
Holes on 11-3/4” B.C.
3/4”
9-1/2” ± 1/4” Dia. Hole
By Customer
By Customer
1/4”
Manhole Cover
8”
9-1/4” ± 14” By Customer
Figure D
Figure E
Figure F
3
INSTALLATION OF HEATER ASSEMBLY IN TANK (cont’d.)
5. Begin lowering heater into tank as per Figure G, Step 1 thru 3
(end manhole) or Figure H, Step 4 thru 7 (center manhole). Once
the heater has touched bottom, use pulling wire (front lifting
cable) to pull heater toward far end of tank.
6. Before lowering back end of heater, visually gage the remaining
length of heater to be laid down, to be certain an equal amount of
clearance is allowed at both ends of tank. Back end of heater is
lowered into place using rear lifting cable. CAUTION: NEVER
USE RISERS TO SUPPORT HEATER TUBES.
7. Where additional heater assemblies are to be installed in the same
manhole, follow same procedure, being careful not to interfere
with risers or cable on the initial heater.
NOTE: In tanks where the configuration does not allow following
the above procedure, or in above ground tanks, ask for Factory recommendations for installation of heater.
Figure G – Tanks with Manholes Near End
Step 1
Step 2
Step 3
Figure H – Tanks with Center Manhole
Step 4
Step 5
Step 6
Step 7
INSTALLATION OF FXTH TERMINAL HOUSING
A. Position manhole cover adjacent to manhole. Very carefully untie
rope from anchoring point and pass it through (1) manhole gasket,
(2) opening in manhole cover, and (3) terminal housing gasket.
Securely refasten rope to anchoring point. Do not allow riser
end(s) to fall into oil, or permanent damage will result to the
heater. Bolt down manhole cover using a suitable gasket sealant if
required to obtain water-tight seal.
B. Pull riser(s) upward into position next to terminal housing. Wrap
teflon tape on threaded riser connections and fasten into underside
of terminal housing. Unused connections on bottom of housing
will already contain flush plugs. Attach lifting cables to ring on
under side of terminal housing.
C. Bolt terminal housing to manhole cover or manhole cover
adapter, again using suitable gasket cement. If manhole cover is
machined per Figure B, be sure to install copper gasket washers
under bolt heads. Position housing so conduit connections are in
the most convenient position for your particular installation.
Connect all riser leads to terminals, following markers on wires
and terminals referring to wiring diagram Figure J.
D. Install power leads from terminal housing to control center. See
Specifications Table, Page I for amperages to determine wire and
conduit size as determined by the National Electric Code.
E. To install thermostat wells, insert closed end of the well into brass
fitting in bottom of terminal housing. Push well completely to
bottom of tank. A preliminary measurement from manhole level
to tank bottom will aid proper insertion. The well may first hit the
heater. It is then necessary to manipulate the well so that it will
glance off the rounded heater surface and extend to tank bottom.
Mark side of tube at the swage fitting and then pun upward several feet to working level. Using a tube cutter, cut the tube at a
point exactly 7” below the mark. Once the tube is cut, be extremely careful the tube is not allowed to drop through fitting and into
tank. Partially tighten fitting so this cannot happen. Position the
upper end of well 5” off top of tube fitting, then firmly tighten the
fitting. Insert bushing (located in shipping bag inside of terminal
housing) into top of well. This will prevent burrs on tube from
cutting the bulb or capillary of thermostat. Repeat this procedure
until all wells are installed. There can be as many as three wells;
(1) Thermostat, (2) Temperature Indicator, (3) Low Limit Alarm.
F. Install thermostat mounting plate. Make sure thermowells are
aligned with openings in plate and over-temperature leads from
riser are brought through plate. Fasten plate into position.
4
INSTALLATION OF HEATER ASSEMBLY IN TANK (cont’d.)
G. Carefully unwind and straighten thermostat capillary tube. The
capillary must be reasonably straight. Be absolutely certain the
bulb is seated at bottom of well. Carefully coil any excess capillary and position next to thermostat and away from electrical connections. Repeat same procedure if low limit alarm is provided.
Attach wire for overtemperature sensor to terminals.
NOTE: Over-temperature control is located in the Chromalox
Control Center. If heater is supplied without control center, be
sure to obtain an over-temperature control for a positive thermistor, otherwise heater will be without over-temperature protection.
H. If the low temperature thermostat is being used, connect annunci-
ator leads directly to terminals on this thermostat and provide an
independent power source. The switch rating is; 20 amp @ 115V,
15 amp @ 230V, pilot duty 125VA.
I. If temperature indicator is employed, wire in accordance with
Figure J. Use wire size as recommended for connecting to control
center.
J. Install control wiring through 3/4" conduit connection as indicat-
ed on page 1. Leave lid off' terminal housing until operational
check is completed. Install breather tube on the outside of the terminal box as shown on page 1, Make sure top of tube is at least
12" above the drainage water level. CAUTION: All conduit connections to terminal housing must be sealed to prevent entry of
any water, water vapor or condensation into terminal housing.
Breather tube length may be cut to shorten height, or extended for
higher flood levels by using 3/8” compression tube coupling and
3/8” tubing, as desired between formed breather tube and elbow
fitting on side of terminal housing.
Temperature
Indicator (Optional)
Low Temp. Alarm
Contacts (Optional)
Non-Indicating
Temp. Control
4
Overtemp.
Probes
Terminal
Block
8
7
6
5
8
7
6
5
8
7
6
5
4
3
2
1
Terminal
Block
Overtemp.
Control
1CR
1CR
2 TDR
1 TDR
Heat
Htr. Contactor #1
#1 Time Delay Relay(15 Sec.)
#2 Time Delay Relay(30 Sec.)
Heat
Heater Contactor #2
Heat
Heater Contactor #3
Overtemp.
Control Relay
Power On
X2
X1
G
ISS
Off - On
Control
H4 H2
H3
H1
H4
H2
H3
H1 H4
H2
H3
H1
240V
480V
BL1
BL2
BL3
CL1
CL2
CL3
Ground
C3
C2
3
2
C1
1
AL1
AL2
AL3
Terminal
Blocks
Fuses
Circuit
Breaker
L1
L2
L3
IL3
IL2
IL1
1 TDR
2
3
2 TDR
1CR
A1
A2
Audible Alarm
(Optional)
Thermistors located on heater with leads in conduit riser.
One thremistor per heater tube.
1 Heater
3 Heaters
2 Heaters
1. Contactor “1 CON” and no fuses are supplied on single stage models.
2. Used on two stage models - fuses “3FU thru 8FU” - Contactor
“2 Con” - Time delay relay “1TDR” - Pilot light “3LT”.
3. Used on three stage models - fuses “3FU thru 11FU” - Contactor
“2 Con & 3 Con” - Time delay relay “1TDR & 2TDR” - Pilot
lights “3LT and 4LT”.
4. Termistor connections: Necessary Jumpers - Factory Wired
NOTES:
F8
F3
F4
F5
F6
F7
C3
R
A
C2
A
C1
A
F2
F1
F10
F11
F9
OCC & WCC Control Center
5
Figure J
ELECTRICAL AND OPERATIONAL CHECKS
A. Having circuit breaker and power switch in “off” position, make
sure proper voltage supplied matches voltage of control panel and
elements.
B. Adjust controlling thermostat in terminal housing to a 50°F read-
ing. Increase setting until thermostat switch just “clicks”. This
setting is to be used for initial heater checkout.
C. Turn circuit breaker to “on” and note green power light coming
on. Turn on power switch and note first amber light will come on,
and then subsequent amber light(s) as explained in Section.
D. Observe control panel as heater goes through several heating
cycles. A cycle is determined when all amber lights are off. Cycle
interval can vary widely depending on amount of oil in tank.
However, the thermostat has been set to keep the cycle time to a
minimum.
E. Turn off circuit breaker and power switch, then re-set thermostat
to desired setting for normal operation. The thermostat contains a
factory adjusted stop which prevents settings above 150°F.
F. If low temperature alarm feature is provided, set this control 10°
to 15°F below the control thermostat setting.
G. Installation of terminal housing lid and gasket (with proper gasket
sealant) completes the check-out procedure.
H. If any difficulties are encountered during the installation and
check-out, call your local Chromalox Representative or
Chromalox Product Service.
INSTALLATION OF REMOTE CONTROL CENTER
CAUTION: Hazard of electric shock. Any installation involving
electric must be grounded to earth to eliminate shock hazard.
1. A safe maximum temperature limit on control cabinet compo-
nents is 125°F. Choose a mounting location not in direct sunlight
or exposed to any other source of excessive heat. If the panel must
be mounted in direct sun, a sun shield must be employed.
2. Install proper control and power wiring to control center as per
Figure J. Power lines are to be sized for the particular heater load.
Double check to insure proper grounding procedures have been
followed for heaters and control panel.
3. Available inside control panel are connections A and A1 which
provide for an over-temperature alarm; such as, horn, bell, etc., to
be mounted remotely as required. These terminals are rated at
50VA, 120V.
4. Electrical
A. CAUTION: Hazard of severe shock. Make sure circuit
breaker and panel switch are in “off” position.
B. Make knockouts in control cabinet which are desired for final
wiring installation.
C. Connect leads from riser(s) to identified terminals shown on
Figure J.
D. TEMPORARY WIRING TO SIMULATE ACTIVATION OF
CONTROL CIRCUIT.
1. Jumper terminals S to S
1
.
2. Connect overtemperature control leads to terminals 5, 6, 7
or 8 as shown on Figure J.
3. Connect green ground wire lead from riser(s) to grounding
lug in control box and from control box to a suitable
ground.
4. Connect power cable of proper voltage to input of control
box.
5. Secure control box door, then place circuit breaker in “on”
position and energize heater with panel switch. Start with
45 second time interval and increase until a definite rise in
temperature on each heater tube can be felt with the bare
hand. NOTE: Adjustable time delay(s) in multi-stage units
have been preset at factory to provide steps for energizing
individual circuits.
6. Observe green light (which indicates “power”) when clos-
ing circuit breaker, first amber light with panel switch "on"
and subsequent amber light(s) (if any) at approximately 15
second intervals.
7. Have qualified electrician, using an amprobe, check amper-
age in individual heater leads to insure uniform amperage.
8. Turn circuit breaker to “off” position and remove tempo-
rary jumper from terminals Sand S
1
6 240 15 1 OCC-15-213 WCC-15-213 24 20 8 64
8 240 25 1 OCC-25-213 WCC-25-213 24 20 8 65
12 240 30 1 OCC-30-213 WCC-30-213 24 20 8 65
15 240 40 1 OCC-40-213 WCC-40-213 24 20 8 66
18 240 45 1 OCC-45-213 WCC-45-213 30 24 8 89
21 240 55 1 OCC-55-213 WCC-55-213 30 24 8 91
24 240 60 1 OCC-60-213 WCC-60-213 30 24 8 91
27 240 70 1 OCC-70-213 WCC-70-213 30 24 8 96
30 240 75 1 OCC-75-213 WCC-70-213 30 24 8 96
12 240 15 2 OCC-15-223 WCC-15-223 30 24 8 84
16 240 25 2 OCC-25-223 WCC-25-223 30 24 8 86
24 240 30 2 OCC-30-223 WCC-30-223 30 24 8 86
30 240 40 2 OCC-40-223 WCC-40-223 30 24 8 91
36 240 45 2 OCC-45-223 WCC-45-223 42 30 8 126
42 240 55 2 OCC-55-223 WCC-55-223 42 30 8 128
48 240 60 2 OCC-60-223 WCC-60-223 42 30 8 128
54 240 70 2 OCC-70-223 WCC-70-223 42 30 8 135
60 240 75 2 OCC-75-223 WCC-75-223 42 30 8 135
18 240 15 3 OCC15-233 WCC-15-233 36 30 8 113
30 240 25 3 OCC-25-233 WCC-25-233 36 30 8 120
36 240 30 3 OCC-30-233 WCC-30-233 36 30 8 125
45 240 40 3 OCC-40-233 WCC-40-233 36 30 8 127
6 480 10 1 OCC-10-413 WCC-10-413 24 20 8 64
8 480 15 1 OCC-15-413 WCC-15-413 24 20 8 64
15 480 20 1 OCC-20-413 WCC-20-413 24 20 8 64
18 480 25 1 OCC-25-413 WCC-25-413 24 20 8 64
21 480 30 1 OCC-30-413 WCC-30-413 24 20 8 64
27 480 35 1 OCC-35-413 WCC-30-413 24 20 8 64
30 480 40 1 OCC-40-413 WCC-30-413 24 20 8 64
12 480 10 2 OCC-10-423 WCC-10-423 30 24 8 84
20 480 15 2 OCC-15-423 WCC-15-423 30 24 8 84
30 480 20 2 OCC-20-423 WCC-20-423 30 24 8 84
36 480 25 2 OCC-25-423 WCC-25-423 30 24 8 89
42 480 30 2 OCC-30-423 WCC-30-423 30 24 8 91
54 480 35 2 OCC-35-423 WCC-35-423 30 24 8 91
60 480 40 2 OCC-40-423 WCC-40-423 30 24 8 96
18 480 10 3 OCC-10-433 WCC-10-433 36 30 8 113
36 480 15 3 OCC-15-433 WCC-15-433 36 30 8 113
45 480 20 3 OCC-20-433 WCC-20-433 36 30 8 113
Catalog Number Dimensions
Max. No.
OCC WCC Inches
Approx.
Max. Amps Per of Dust and Oil Weatherproof Net Wt.
kW Volts Circuit Circuits Tight Models Models H W D Lbs.
Specifications – OCC and WCC Control Center (All Phases)
6
OPTIONAL EQUIPMENT
Temperature Indicators (Suffix “D”)
(FXTH Heater Assembly and Control Center will have
suffix "D" e.g. FXTH-11206D, WCG15-213D)
MOUNTING
Temperature indicators are balanced for accurate reading in a normal
vertical position unless specified otherwise. All pyrometers labeled
"shielded meter" may be used in any type of panel with little or no
effect on calibration. Those labeled "non-magnetic" must be used
only on aluminum, plastic, wood or other non-magnetic panels. They
will read low if mounted in a steel panel. Pyrometers which are
labeled "magnetic" are intended for installation on steel panels. A
steel compensating ring is normally supplied where panel material is
not specified. Discard the ring when mounting on a steel panel. If the
pyrometer is used on a non-magnetic panel, the steel ring must be
used. Be sure the slit in the ring is at the top of the meter barrel and
the ring is pushed as far forward as it will go.
THERMOCOUPLE SELECTION AND CALIBRATION
Each pyrometer is marked on the dial with the type of thermocouple
and the total external resistance for which it is calibrated. Use of any
other type of thermocouple or one with a higher resistance than
marked will result in incorrect readings. (Type J thermocouples are
normally used.) All standard pyrometers are calibrated for 10 ohms
external thermocouple resistance and are provided with a 10 ohm calibrating resistor bobbin. (Non-standard pyrometers are usually calibrated for the specific external resistance ordered and no resistor bobbin is supplied.) This resistor bobbin must be adjusted so the total
resistance of the thermocouple and the bobbin add up to 10 ohms in
order to maintain calibration accuracy. Therefore, for a 5 foot, 20
gauge, iron-constantan thermocouple, the resistance of the thermocouple would be approximately 1.75 ohms and this resistance must be
subtracted from the calibrating bobbin. Each turn of the wire on the
resistor bobbin represents 0.5 ohms and for this example, 3-1/2 turns
would be removed. The total resistance of the thermocouple plus the
resistor bobbin would then add up to 10 ohms. For other values of
thermocouple resistance, simply remove more or less turns to adjust
for the total value of external resistance marked on the pyrometer
dial.
It is very important the resistor wire be properly soldered after
adjusting.
NOTE: When Thermocouples with external resistance higher than 10
ohms will be used, a special pyrometer will be required. The use of
other than thermocouple wire for leads or extensions may result in
improper ambient compensation.
ABBREVIATED TABLE OF THERMOCOUPLE RESISTANCE
The table lists the resistance in ohms per pair-foot for various types
of commonly used thermocouples for a number of different gauges of
wire. By using this table, it is necessary only to measure the length of
the thermocouple, knowing the type and gauge, to determine its
approximate resistance. (Actual measurement of the thermocouple
resistance is preferred to using the table.)
8 .0215 .0184 .0365
10 .0341 .0293 .0580
12 .0542 .0466 .0922
14 .0863 .0741 .1470
16 .1370 .1180 .2330
18 .2180 .1870 .3710
20 .3570 .2980 .5900
22 .5510 .4690 .9370
24 .8770 .7530 1.490
26 1.390 1.200 2.370
28 2:220 1.910 3.770
30 3.520 3.030 5.980
Ohms Per Pair - Foot
Iron/Constantan Copper/Constantan Chromel/Alumel
Gauge B & S (Type J) (Type T) (Type K)
CHROMALOX TYPE TMC 7-DAY TIMER
TMC 7-day Calendar, Electric Dial Timer is used to provide automatic start-up/off-on control of large tank heaters or could be set up
for non-peak operation. Standard features: 7-day calendar dial permits different on/off schedules on different days of week. 2 to 14
replaceable trippers for up to 4 on/off operations per day, up to 28
on/off operations per week. 3 hour minimum on or off time; 21 hour
maximum on or off time. Independent 4-pole design allows SPST,
DPST, SPDT, switching. Manual on/off lever transfers switch operation without disturbing daily or weekly preset schedule. Heavy duty
synchronous motor suitable for operation between -40°F and +140°F.
Switch slider bar assures positive switching. Heavy duty terminals
accommodate up to AWG No.8 wire.
OPERATION
“Off” Setting - de-energizes the entire zone control circuit, thus de-
energizing all heating-cooling equipment in the zone. This setting can
be used for extended summer shutdowns, etc.
“Automatic” Setting - allows the Day-Night Clock Panel to cycle
the control system according to the program clock dial tripper settings.
To Set Trippers - Refer to picture for typical setup of a Seven Day
Program. Two trippers must be used for each day; an “A” tripper for
switching from “Night Setback” to “Day Operation” and a “B” tripper for switching from “Day Operation” to “Night Setback”.
CAUTION: To set the correct day and time at beginning of initial
start-up, ROTATE THE PROGRAM CLOCK DIAL CLOCKWISE
ONLY. DO NOT ATTEMPT TO TURN POINTER!
Adjusting and Maintenance of Time Switch:
1. Periodically check trippers to insure that they are tightly fastened
to Program Clock dial. CAUTION: TIGHTEN TRIPPERS WITH
FINGERS ONLY!
2. Rotate Program Clock dial CLOCKWISE one hour in Spring to
adjust for daylight saving time (in areas where required). In Fall,
carefully rotate clock dial CLOCKWISE approximately one full
turn to reset at correct day and time for standard time. Check all
trippers to insure they have not moved during rotation.
3. The Program Clock motor is permanently lubricated. Lubrication
of other parts is not required.
4. The Program Clock switch contacts are factory set and need no
field adjustment.
4 Pole
TMC71 311-057070-001 Seven Day 120 2 N.O. 40
2 N.C.
Renewal Volts
Model Part No. Operation 60 Hz Switch Amps
7
FXTH-11206 6 063-115244-004 063-115244-002
FXTH-11508 8 063-115244-003 063-115244-004
FXTH-11510 10 063-115244-005 063-115244-006
FXTH-11512 12 063-115244-009 063-115244-010
FXTH-12010 10 063-115244-007 063-115244-008
FXTH-12012 12 063-115244-011 063-115244-012
FXTH-12015 15 063-115244-013 063-115244-014
FXTH-12718 18 063-115244-015 063-115244-016
FXTH-13021 21 063-115244-017 063-115244-018
FXTH-13224 24 063-115244-019 063-115244-020
FXTH-13527 24 063-115244-021 063-115244-022
FXTH-14030 30 063-115244-023 063-115244-024
FXTH-21212 12 063-115244-001 (2) 063-115244-002 (2)
FXTH-21516 16 063-115244-003 (2) 063-115244-004 (2)
FXTH-21520 20 063-115244-005 (2) 063-115244-006 (2)
FXTH-21524 24 063-115244-009 (2) 063-115244-010 (2)
FXTH-22020 20 063-155244-007 (2) 063-115244-008 (2)
FXTH-22024 24 063-115244-011 (2) 063-115244-012 (2)
FXTH-22030 30 063-115244-013 (2) 063-115244-014 (2)
FXTH-22736 36 063-115244-015 (2) 063-115244-016 (2)
FXTH-23042 42 063-115244-017 (2) 063-115244-018 (2)
FXTH-23248 48 063-115244-019 (2) 063-115244-020 (2)
FXTH-23554 54 063-115244-021 (2) 063-115244-022 (2)
FXTH-24060 60 063-115244-023 (2) 063-115244-024 (2)
FXTH-31218 18 063-115244-001 (3) 063-115244-002 (3)
FXTH-31530 30 063-115244-005 (3) 063-115244-006 (3)
FXTH-31536 36 063-115244-009 (3) 063-115244-010 (3)
FXTH-32030 30 063-115244-007 (3) 063-115244-008 (3)
FXTH-32036 36 063-115244-011 (3) 063-115244-012 (3)
FXTH-32045 45 063-115244-013 (3) 063-115244-014 (3)
240 Voltage 480
Catalog No. kW Element Part Number Element Part Number
RENEWAL PARTS IDENTIFICATION
REPLACEMENT PARTS FOR OCC AND WCC CONTROL CENTER
What the Catalog Number means:
FXTH – 2 12 12 WCC – 10 - 423
1 2 3 4 1 2 345
1 – Flexible Tank Heater 1 – OCC - Oil Tight & Dust Tight Control Center
2 – Number of Tubes WCC - Weatherproof Control Center
3 – “B” Dimension 2 – Maximum Amperage per Circuit
4 – kW Rating 3 – Maximum Voltage 2 - 240, 4 - 480, 6 - 600
4 – Number of Circuits
5 – Phase
-----------------------------------------------------------------------------------------------------------------------------------------
Modified FXTH Standard Heater (FXTH-32036A)
Voltage................................................V Wattage.........................................W
Change in Riser Length......................................................................................A
Low Temp. Alarm Contacts ................................................................................R
Temperature Indicator.........................................................................................D
WCC
Voltage .............................................................................................................V
Audible Alarm .................................................................................................H
Time Clock.......................................................................................................T
Temperature Indicator .....................................................................................D
All Others .....................................................................................................XX
Common Parts Part Number
Terminal Housing Manhole adapter.................................... 306-115694-001
Manhole adapter Flange ..................................................... 121-115692-001
Manhole adapter Housing................................................... 065-115693-001
Flange Gasket ..................................................................... 132-115515-001
Housing Gasket .................................................................. 132-113661-001
Thermostat ......................................................................... 300-115621-001
Thermocouple Probe .......................................................... 309-121168-001
Circuit Breaker Handle (150 Amps or less) ........................ 139-071820-000
Circuit Breaker Handle (151 Amps to 225 Amps)............... 139-071820-010
Pilot Light - Red ................................................................. 213-120816-005
Amber ............................................................................ 213-120816-001
Green ............................................................................ 213-120816-002
Plexiglass Window ............................................................. 207-121061-001
Alarm ................................................................................. 385-122101-001
Selector Switch (WCC only) ............................................... 292-120827-002
Selector Switch (OCC only) ................................................ 292-120827-001
Moto-gard Overtemp. Control ............................................ 300-115550-001
Control Relay 300V, 10A, 3 Pole......................................... 072-120451-001
Time Clock - 7-day ............................................................. 311-057070-001
Pyrometer........................................................................... 308-051161-001
NEMA - IV Seal on Circuit Breaker Handle ......................... 139-071820-013
Note: Number in ( ) indicates quantity of same part number used.
Qty. Description Part Number
OCC or WCC-10-413, 480V, 1-3ø, 6 & 8 kW
1 Circuit Breaker, 480V, 15 Amp, 3 pole........................104-071818-017
1 Contactor, 600V, 20 Amp, 3 pole................................072-120812-005
2 Fuses, 1/2 (F1 and F2) ...............................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-10-423, 480V, 2-3ø, 12 & 16 kW
1 Circuit Breaker, 480V, 25 Amp, 3 pole........................104-071818-019
2 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
2 Fuses, FNQ 6/10 (F1 and F2)......................................128-114696-005
6 Fuses, KTK-15 (F3 thru F8) ........................................128-047763-002
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-10-433, 480V, 3-3ø, 18 kW
1 Circuit Breaker, 480V, 30 Amp, 3 pole........................104-071818-020
3 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
9 Fuses, KTK-15 (F3 thru F11) ......................................128-047763-002
1 Transformer 250VA ....................................................315-048507-024
2 Relay Time Delay........................................................311-115540-001
2 Fuse FNQ 6/10 (F1 and F2) ........................................128-114696-005
Qty. Description Part Number
OCC or WCC-15-213, 240V, 1-3ø, 6 kW
1 Circuit Breaker, 240V, 20 Amp, 3 pole........................104-071818-003
1 Contactor, 600V, 20 Amp, 3 pole................................072-120812-005
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA ...................................................315-048507-018
OCC or WCC-15-223, 240V, 2-3ø, 12 kW
1 Circuit Breaker, 240V, 40 Amp, 3 pole........................104-071818-007
2 Contactors, 600V, 20 Amp, 3 pole ............................072-120812-005
2 Fuses, FNM8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, KTK-20 (F3 thru F8) ........................................128-047763-002
1 Time Delay Relay........................................................311-115540-001
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-15-233, 240V, 3-3ø, 18 kW
1 Circuit Breaker, 240V, 60 Amp, 3 pole........................104-071818-010
3 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
9 Fuses, KTK-20 ............................................................128-047763-002
1 Transformer, 250VA ...................................................315-048507-024
2 Time Delay Relay........................................................311-115540-001
2 Fuse FNM 1- 4/10.......................................................128-114696-013
8
REPLACEMENT PARTS FOR OCC AND WCC CONTROL CENTER (cont’d.)
Qty. Description Part Number
OCC or WCC-15-413, 480V, 1-3ø, 10 & 12 kW
1 Circuit Breaker, 480V, 20 Amp, 3 pole........................104-071818-018
1 Contactor, 600V, 20 Amp, 3 pole................................072-120812-005
2 Fuses, FNQ 1/2 (F1 and F2)........................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-15-423, 480V, 2-3ø, 20 & 24 kW
1 Circuit Breaker, 480V, 40 Amp, 3 pole........................104-071818-022
2 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
2 Fuses, FNQ 6/10 (F1 and F2)......................................128-114696-005
6 Fuses, KTK-20 (F3 thru F8) ........................................128-047763-003
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-10-433, 480V, 3-3ø, 30 kW
1 Circuit Breaker, 480V, 50 Amp, 3 pole........................104-071818-024
3 Contactors, 600V, 20 Amp, 3 pole ............................ 072-120812-005
9 Fuses, KTK-20 (F3 thru F11) ......................................128-047763-002
1 Transformer, 250VA....................................................315-048507-024
2 Time Delay Relay........................................................311-115540-001
2 Fuses, FNQ 6/10 (F1 and F2)......................................128-114696-005
Qty. Description Part Number
OCC or WCC-25-233, 240V, 3-3ø, 30 kW
1 Circuit Breaker, 240V, 100 Amp, 3 pole......................104-071818-014
3 Contactors, 600V, 30 Amp, 3 pole ............................072-120812-005
9 Fuses, KTK-30 (F3 thru F11) ......................................128-047763-005
1 Transformer, 250VA....................................................315-048507-024
2 Time Delay Relay........................................................311-115540-001
2 Fuses, FNM 1- 4/10 (F1 and F2).................................128-114696-013
OCC or WCC-25-413, 480V, 1-3ø, 18 kW
1 Circuit Breaker, 480V, 30 Amp, 3 pole........................104-071818-020
1 Contactor, 600V, 30 Amp, 3 pole................................072-120812-001
2 Fuses, FNQ V2 (F1 and F2).........................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-25-423, 480V, 2-3ø, 36 kW
1 Circuit Breaker, 480V, 60 Amp, 3 pole........................104-071818-025
2 Contactors, 600V, 30 Amp, 3 pole..............................072-120812-001
2 Fuses, FNQ 4/10 (F1 and F2)......................................128-114696-010
6 Fuses, FRS-35 (F3 thru F8) ........................................128-121133-063
1 Transformer, 150VA ...................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-15-433, 480V, 3-3ø, 36 kW
1 Circuit Breaker, 480V, 70 Amp, 3 pole........................104-071818-026
3 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
9 Fuses, KTK-20 (F3 thru F11) ......................................128-047763-003
1 Transformer, 250VA....................................................315-048507-024
2 Time Delay Relay .......................................................311-115540-001
2 Fuses, FNQ 6/10 (F1 and F2)......................................128-114696-005
OCC or WCC-30-213, 240V, 1-3ø, 12 kW
1 Circuit Breaker, 240V, 40 Amp, 3 pole .......................104-071818-007
1 Contactor, 600V, 30 Amp, 3 pole............................... 072-120812-005
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-20-413, 480V, 1-3ø, 15 kW
1 Circuit Breaker, 600V, 25 Amp, 3 pole........................104-071818-019
1 Contactor, 600V, 20 Amp, 3 pole................................072-120812-005
2 Fuses, FNQ V2 (F1 and F2).........................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-30-223, 240V, 2-3ø, 24 kW
1 Circuit Breaker, 240V, 80 Amp, 3 pole........................104-071818-012
2 Contactors, 600V, 30 Amp, 3 pole..............................072-120812-001
2 Fuses, FNM 8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, FRN (F3 thru F8) .............................................128-121133-077
1 Time Delay Relay........................................................311-115540-001
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-20-423, 480V, 2-3ø, 30 kW
1 Circuit Breaker, 480V, 50 Amp, 3 pole........................104-071818-024
2 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
2 Fuses, FNQ 6/10 (F1 and F2)......................................128-114696-005
6 Fuses, KTK-25 (F3 thru F8) ........................................128-047763-004
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay .......................................................311-115540-001
OCC or WCC-30-233, 240V, 3-3ø, 36 kW
1 Circuit Breaker, 600V, 125 Amp, 3 pole......................104-071818-045
3 Contactor, 600V, 30 Amp, 3 pole................................072-120812-005
9 Fuses, FRN 40 (F3 thru F11) ......................................128-121133-077
1 Transformer, 250VA....................................................315-048507-024
2 Relays, Time Delay .....................................................311-115540-001
2 Fuses, FNM 1- 4/10 (F1 and F2).................................128-114696-013
OCC or WCC-20-433, 480V, 3-3ø, 45 kW
1 Circuit Breaker, 480V, 70 Amp, 3 pole........................104-071818-026
3 Contactors, 600V, 20 Amp, 3 pole..............................072-120812-005
9 Fuses, KTK-25 (F3 thru F11) ......................................128-047763-004
1 Transformer, 250VA....................................................315-048507-024
2 Time Delay Relay .......................................................311-115540-001
2 Fuses, FNQ 6110 (F1 and F2).....................................128-114696-005
OCC or WCC-30-413, 480V, 1-3ø, 21 & 24 kW
1 Circuit Breaker, 480V, 40 Amp, 3 pole........................104-071818-022
1 Contactor, 600V, 30 Amp, 3 pole................................072-120812-001
2 Fuses, FNQ V2 (F1 and F2).........................................128-114696-010
OCC or WCC-25-213, 240V, 1-3ø, 3 & 8 & 10 kW
1 Circuit Breaker, 240V, 30 Amp, 3 pole........................104-071818-005
1 Contactor, 600V, 30 Amp, 3 pole................................072-120812-005
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-30-423, 480V, 2-3ø, 42 kW
1 Circuit Breaker, 480V, 70 Amp, 3 pole .......................104-071818-026
2 Contactor, 600V, 30 Amp, 3 pole................................072-120812-001
2 Fuses, FNQ 4/10 (F1 and F2)......................................128-114696-010
6 Fuses, FRS-40 (F3 thru F8) ........................................128-121133-064
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay....................................................... 311-115540-001
OCC or WCC-25-223, 240V, 2-3ø, 16 & 20 kW
1 Circuit Breaker, 240V, 70 Amp, 3 pole........................104-071818-011
2 Contactors, 600V, 30 Amp, 3 pole..............................072-120812-001
2 Fuses, FNM 8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, KTK-30 (F3 thru F8) ....................................... 128-047763-005
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-30-423, 480V, 2-3ø, 48 kW
1 Circuit Breaker, 480V, 80 Amp, 3 pole........................104-071818-027
2 Contactors, 600V, 30 Amp, 3 pole..............................072-120812-001
2 Fuses, FNQ 4/10 (F1 and F2)......................................128-114696-010
6 Fuses, FRS-45 (F3 thru F8) ........................................128-121133-065
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
9
REPLACEMENT PARTS FOR OCC AND WCC CONTROL CENTER (cont’d.)
Qty. Description Part Number
OCC or WCC-35-413, 480V, 1-3ø, 27 kW
1 Circuit Breaker, 480V, 45 Amp, 3 pole........................104-071818-023
1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002
2 Fuses, FNQ V2 (F1 and F2).........................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-35-423, 480V, 2-3ø, 54 kW
1 Circuit Breaker, 480V, 90 Amp, 3 pole .......................104-071818-028
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNQ 4/10 (F1 and F2)......................................128-114696-010
6 Fuses, FRS-50 (F3 thru F8) ........................................128-121133-066
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-40-213, 240V, 1-3ø, 15 kW
1 Circuit Breaker, 240V, 50 Amp, 3 pole........................104-071818-009
1 Contactor, 600V, 60 Amp, 3 pole............................... 072-120812-002
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
Qty. Description Part Number
OCC or WCC-55-213, 240V, 1-3ø, 21 kW
1 Circuit Breaker, 240V, 70 Amp, 3 pole........................104-071818-011
1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-55-223, 240V, 2-3ø, 42 kW
1 Circuit Breaker, 600V, 150 Amp, 3 pole .....................104-071818-046
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNM 8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, FRN-70 (F3 thru F8) .......................................128-121133-081
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay .......................................................311-115540-001
OCC or WCC-60-213, 240V, 1-3ø, 24 kW
1 Circuit Breaker, 240V, 80 Amp, 3 pole........................104-071818-012
1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-40-223, 240V, 2-3ø, 30 kW
1 Circuit Breaker, 240V, 100 Amp, 3 pole......................104-071818-014
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNM 1- 4/10 (F1 and F2).................................128-114696-013
6 Fuses, FRN-45 (F3 thru F8)........................................128-121133-078
1 Time Delay Relay........................................................311-115540-001
1 Transformer, 250VA....................................................315-048507-024
OCC or WCC-60-223, 240V, 2-3ø, 48 kW
1 Circuit Breaker, 600V, 150 Amp, 3 pole......................104-071818-046
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNM 8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, FRN-80 (F3 thru F8)........................................128-121133-082
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-40-233, 240V, 3-3ø, 45 kW
1 Circuit Breaker, 600V, 150 Amp, 3 pole .....................104-071818-046
3 Contactors, 600V, 60 Amp, 3 pole ........................... 072-120812-002
9 Fuses, FRN 45 (F3 thru F11) ......................................128-121133-078
1 Transformer, 250VA....................................................315-048507-024
2 Time Delay Relay .......................................................311-115540-001
2 Fuses, FNM 1-4/10 (F1 and F2)..................................128-114696-013
OCC or WCC-70-213, 240V, 1-3ø, 27 kW
1 Circuit Breaker, 240V, 90 Amp, 3 pole........................104-071818-013
1 Contactor, 600V, 100 Amp, 3 pole..............................072-120812-003
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-40-413, 480V, 1-3ø, 30 kW
1 Circuit Breaker, 480V, 50 Amp, 3 pole........................104-071818-024
1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002
2 Fuses, FNQ 1/2 (F1 and F2)........................................128-114696-010
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-70-223, 240V, 2-3ø, 54 kW
1 Circuit Breaker, 600V, 175 Amp, 3 pole .....................104-071819-019
2 Contactors, 600V, 100 Amp, 3 pole ..........................072-120812-003
2 Fuses, FNM 1-1/8 (F1 and F2)....................................128-114696-020
6 Fuses, FRN-90 (F3 thru F8)........................................128-121133-083
1 Transformer, 250VA....................................................315-048507-024
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-40-423, 480V, 2-3ø, 60 kW
1 Circuit Breaker, 480V, 100 Amp, 3 pole......................104-071818-029
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNQ 4/10 (F1 and F2)......................................128-114696-010
6 Fuses, FRS-35 (F3 thru F8) ........................................128-121133-063
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-75-213, 240V, 1-3ø, 30 kW
1 Circuit Breaker, 240V, 100 Amp, 3 pole......................104-071818-014
1 Contactor, 600V, 100 Amp, 3 pole..............................072-120812-003
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-45-213, 240V, 1-3ø, 18 kW
1 Circuit Breaker, 240V, 60 Amp, 3 pole........................104-071818-010
1 Contactor, 600V, 60 Amp, 3 pole................................072-120812-002
2 Fuses, FNQ 8/10 (F1 and F2)......................................128-114696-011
1 Transformer, 150VA....................................................315-048507-018
OCC or WCC-72-223, 240V, 2-3ø, 60 kW
1 Circuit Breaker, 600V, 200 Amp, 3 pole......................104-071819-020
2 Contactors, 600V, 100 Amp, 3 pole .......................... 072-120812-003
2 Fuses, FNM 1-1/8 (F1 and F2)....................................128-114696-020
6 Fuses, FRN-100 (F3 thru F8) .....................................128-121133-084
1 Transformer, 250VA....................................................315-048507-024
1 Time Delay Relay........................................................311-115540-001
OCC or WCC-45-223, 240V, 2-3ø, 36 kW
1 Circuit Breaker, 600V, 125 Amp, 3 pole......................104-071818-045
2 Contactors, 600V, 60 Amp, 3 pole..............................072-120812-002
2 Fuses, FNM 8/10 (F1 and F2) .....................................128-114696-012
6 Fuses, FRN-60 (F3 and F8..........................................128-121133-080
1 Transformer, 150VA....................................................315-048507-018
1 Time Delay Relay........................................................311-115540-001
10
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1347 HEIL QUAKER BLVD., LAVERGNE, TN 37086
Phone: (615) 793-3900 www.chromalox.com
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
http://www.chromalox.com/customer-service/policies/termsofsale.aspx.
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