Paragon WTNFII-19, W18, W14, W13, WTNFII-10 User Manual

Operating Instructions

For All WW Electric Burnout Furnaces

With Computerized Programmable Controllers

W13, W14, W18

And WTNFII-10, -19

Furnaces Manufactured by

Paragon Industries, Inc.

2011 S. Town East Blvd.

Mesquite, Texas 75149

800-876-4328
972-288-7557

Fax [phone]

[e-mail]

www.paragonweb.com

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OPERATING INSTRUCTIONS

FOR ALL WW ELECTRIC BURNOUT FURNACES WITH COMPUTERIZED

PROGRAMMABLE CONTROLLERS (W13, W14, W18) AND WW

COMPUTERIZED PROGRAMMERS (WTNFII-10, -19)

Computerized programming of burnout furnaces provides for simple push-button
operation for controlling your furnace during the burnout process. All programmers contain 3
built-in burnout programs which may be used immediately by pressing a couple of keys, or
you may create your own individualized custom program(s). Your programmable controller
allows up to four (4) custom programs. Program 1 allows for up to twenty (20) segments or as
we refer to "RAMPS". Programs 2, 3, and 4 allows for up to ten (10) segments. A segment or
"RAMP" consists of three (3) areas : 1) RATE OF HEATING/COOLING, 2) TEMPERATURE
SETTING (either

F or

C), and 3) HOLD TIME FOR THE TEMPERATURE. You may also enter a

°°°°

°°°°

DELAY to set the time you want the furnace to start the burnout program. All furnaces and
controllers are warranted for one year against defects in workmanship or material.

WW ELECTRIC BURNOUT FURNACES

All of our WW Electric Burnout Furnaces feature industrial quality construction and
sizes to fit every shop. They offer the simplest, most efficient and reliable means of burnout for
the lost wax caster. All of these furnaces are enclosed in trouble-free stainless steel cabinets.
Heating elements are secured in grooves inside the chamber; they are easily replaced when
necessary.

SPECIFICATIONS:

NO. W13

ELECTRICAL ........................................... 240V AC - 13A - 3000

WATTS

OUTSIDE DIMENSION ............................ 18"W X 21½"H X

21½"D

HEATING CHAMBER .............................. 13" X 13" X 9"

SHIPPING WEIGHT ................................. 135 LB.

NO. W14

ELECTRICAL ........................................... 240V AC - 16.7A - 4000

WATTS

OUTSIDE DIMENSION ............................ 19"W X 26½"H X 22"D

HEATING CHAMBER .............................. 14" X 14" X 14"

SHIPPING WEIGHT ................................. 165 LB.

NO. W18

ELECTRICAL ........................................... 240V AC - 24A - 5760 WATTS

OUTSIDE DIMENSION ............................ 24"W X 31"H X 27"D

HEATING CHAMBER .............................. 18" X 18" X 18"

SHIPPING WEIGHT ................................. 299 LB.

WW COMPUTERIZED PROGRAMMERS

SPECIFICATIONS:

NO. WTNFII-10 - COMPUTERIZED PROGRAMMER - 240V - 20A
NO. WTNFII-19 - COMPUTERIZED PROGRAMMER - 120V - 20A

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FURNACE GRATES & TRAYS

For Wax Elimination Cycle

The WW Furnace Grate and Tray simplifies burnout procedure. It is no longer necessary to remove flasks and tray, then
replace flasks to avoid carbon build-up on heating elements, which is a primary cause of element failure. Now you merely
slide the stainless steel tray(s) from beneath the grate at the end of the wax elimination cycle and proceed with burnout. you
have removed 90% or more of the cause of offensive odor and air pollution. The grate is cast iron, like a cook-stove burner,
for strong support and long life.

Grates and trays are sized to fit standard electric burnout furnaces.

N0. WWT13 GRATE & TRAY FIT NOS. W13 & W14 FURNACES (12½" X 12½" X 1¼"H)
NO. WWT18 GRATE & TRAY FITS NO. W18 FURNACE (17" X 17" X 1½")

NO. WWT13 CAN BE USED IN ANY FURNACE WITH A CHAMBER MEASUREMENT OF 12½" X 12½" UP TO 14" X 14".

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INSTALLATION PROCEDURES FOR WW ELECTRIC BURNOUT FURNACES

1) W13 and W14 Furnaces require 240V - 20 Amp dedicated power supply and a NEMA NO: 6-20
receptacle or you can wire in direct with a breaker box nearby (USE A LICENSED ELECTRICIAN).
W18 furnaces require 240V – 30 Amp dedicated power supply and a NEMA NO: 10-30 receptacle.

2) Set the furnace on a sturdy bench or table with a fire-proof top. Sides and back must be at least
12" from wall or side equipment.

3) The minimum voltage required to operate your furnace is 200V. The maximum is 250V.

4) Vent or Vents (depending on furnace model) and plug(s) are supplied for the top of the furnace.
Keep vents open at all times until all fumes or vapors are eliminated. STEAM WAX ELIMINATION IS
HIGHLY RECOMMENDED.

5) Read and remember the SAFETY RULES enclosed at all times.

6) Insert line cord plug into wall socket (or turn on breaker if direct wired).
a. The Controller will display all segments and the alarm sounds.

b. After a moment [ ldLE ] and the current temperature will alternately appear and the

alarm will stop.

(Remember - All programming, including permanent programs, begins from [ ldLE ] ).

7) Now refer to Permanent Program No. 1 (page 10). This is the wax burnout program which is 1 ­1½ hours in length and a good system check for your controller.

Your furnace is ready for use and you have two more permanent programs available. Programs
No. 2 and No. 3. One of these should be suitable for your use. If not, you may refer to
"PROGRAMMING INSTRUCTIONS" and set up your own custom program (see pages 14 - 16).

Vents are built into the top of your furnace. These vents must be kept open at all times. Their
purpose is to allow the fumes - created during burnout - to escape. Although not necessary, a vent
hood above the furnace is a desirable asset for helping get rid of these fumes. The vent hood
should be a DRAFT-TYPE vent hood, do not use a suction fan style hood, otherwise excessive
power is wasted during burnout. Place top of furnace approximately 12" below vent. See
illustration.

INDEX

INSTALLATION INSTRUCTIONS 3-4
MISCELLANEOUS INFORMATION 5
PROGRAMMER DISPLAY & OPTIONS 6-8
SAFETY RULES, SPECIAL INSTRUCTIONS 9
PERMANENT PROGRAM NO. 1, 2,& 3 10-13
CUSTOM PROGRAM INFORMATION 14-15
PROGRAMMING STEP-BY-STEP 16
ADDITIONAL OPTIONS 17-18

A Vent Hood is recommended for burnout furnaces.

Page No.

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INSTALLATION FOR WW COMPUTERIZED PROGRAMMERS

WTNFII-10 & WTNFII-19

1) Be sure that your programmer is the same voltage as your burnout furnace:

WTNFII-10 - 240V

WTNFII-19 - 120V
Note - Do not plug in furnace or programmer at this time.

2) Mount programmer next to furnace. Holes are provided in the rear of the cabinet for hanging
your programmer on the wall with screws. A wall outlet of the proper voltage and amperage with a
dedicated line should be within 5 ft. (Do not use an extension cord). NOTE: THE WTNFII-19
COMPUTERIZED PROGRAMMER COMES WITH A NEMA 5-20R PLUG ON THE POWER CORD. IF
YOUR FURNACE IS RATED AT MORE THAN 20 AMPS, YOU CANNOT USE THIS PROGRAMMER. IF
YOUR FURNACE DRAWS LESS THAN 20 AMPS, YOU MAY INSTALL A STANDARD PLUG AT THE
AMPERAGE OF YOUR FURNACE. A LICENSED ELECTRICIAN SHOULD BE USED FOR ALL
ELECTRICAL WORK.

3) Insert the thermocouple into the hole at the back of the furnace. If no hole has been provided,
one must be drilled. CAUTION: DO NOT DRILL INTO HEATING ELEMENT. BE SURE THAT NO
METAL IS IN CONTACT WITH THERMOCOUPLE METAL PARTS.

4) Insert furnace line cord into socket on side of programmer. (NOTE: 120V and 240V PLUGS
COME IN MANY STYLES - IF YOUR PLUG DOES NOT MATCH THE SOCKET, IT MUST BE
REPLACED WITH ONE THAT DOES FIT) Your Computerized Programmer is rated for a maximum
of 20 Amps.

5) Insert programmer line cord into wall outlet. Again, if plug does not match outlet, outlet must be
replaced or unit can be wired direct. If wired direct, it must be done by a licensed and qualified
electrician. NOTE: WHEN POWER IS FIRST APPLIED, THE PROGRAMMER ALARM WILL GO OFF
FOR APPROXIMATELY TWO SECONDS..

6) The display will alternately read [ ldLE ] and the current temperature in the furnace.

7) If the display does not read [ ldLE ], press “STOP” then press “ENTER”.

8) Turn the furnace control to HIGH and your installation is complete. Now you can start using the
programmer.

9) To activate a program, refer to the operating instructions of our burnout furnaces.

NOTE: EVEN THOUGH THE PROGRAMMER IS OFF AT THIS TIME, THE UNIT WILL DISPLAY
THE AMBIENT TEMPERATURE INSIDE THE FURNACE.

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PLACING FLASKS IN YOUR WW ELECTRIC BURNOUT FURNACE

IMPORTANT NOTE: YOU MUST USE EITHER STEAM WAX ELIMINATION OR THE WAX
ELIMINATION PROGRAM OF THE FURNACE. REMOVE THE WAX TRAY AFTER THE WAX
ELIMINATION CYCLE HAS COMPLETED. FAILURE TO REMOVE THE WAX TRAY WILL CAUSE
CARBON BUILD-UP ON THE EXPOSED ELEMENTS RESULTING IN PREMATURE ELEMENT
FAILURE. THE ELEMENTS ARE NOT WARRANTED.

When starting to load your furnace for wax elimination, be sure to use a tray to catch
the melted wax. We highly recommend our WWT13 or WWT18 Furnace Grate & Tray for this
purpose. Place flasks sprue hole down. Do not allow flasks to touch the sides, back or door of
the furnace, nor to touch each other's sides. Above all, do not allow a flask to touch the
thermocouple sensor located in upper center of back wall.

When stacking flasks, be sure that the sprue hole is exposed at all times, so that no
wax residue can be trapped. See illustration below. Flasks may touch edges (not sides) of each
other as shown as long as the sprue holes are exposed.

After the wax elimination cycle is complete, the flasks must be removed so that the wax
tray can be removed, then the flasks can be returned to the furnace, sprue hole up and again,
fully exposed and the firing procedure begun. NOTE: IF THE WWT13 OR WWT18 GRATE &
TRAY IS USED, IT IS NOT NECESSARY TO TURN SPRUE HOLE UP AFTER WAX ELIMINATION.

NOTE: THESE EXAMPLES SHOW CAPACITIES FOR OUR W18 FURNACE. THE SAME PRINCIPLES

Stacking suggestions in 18x18x18 furnace for maximum capacity using different size flasks.

NOTE THAT SPRUE HOLE MUST BE EXPOSED BOTH DURING WAX ELIMINATION (SPRUE HOLE IS DOWN) OR WHEN
FIRING (SPRUE HOLE IS UP).

APPLY FOR ANY BURNOUT FURNACE.

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