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9 Deforest St. Amityville NY, 11701

1-631-842-2400

[email protected]

romanoff.com

4

INSTALLATIONPROCEDURES 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 wirein direct with a breakerbox nearby (USE A LICENSED ELECTRICIAN).
W18 furnaces require 240V– 30Amp dedicated power supply and a NEMA NO: 10-30receptacle.
2) Set the furnace on a sturdy bench or table with a fire-prooftop. 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 forthe 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 rememberthe 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 referto Permanent Program No. 1 (page 10). This is the wax burnout program which is 1 -
1½hours 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 -toescape. 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

Page No.

INSTALLATION INSTRUCTIONS

3-4

MISCELLANEOUS INFORMATION

5

PROGRAMMER DISPLAY & OPTIONS

6-8

SAFETY RULES, SPECIAL INSTRUCTIONS9
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.

Содержание W13

Страница 1: ...Electric Burnout Furnaces With Computerized Programmable Controllers W13 W14 W18 And WTNFII 10 19 orest St Amityville NY 11701 1 631 842 2400 romanoff com romanoff com 1 631 842 2400 sales romanoff com 9 Deforest St Amityville NY 11701 ...

Страница 2: ...ces and controllers are warranted for one year against defects in workmanship or material WW ELECTRIC BURNOUTFURNACES All of our WW Electric Burnout Furnaces featureindustrialquality construction and sizes to fit every shop They offerthe simplest most efficient and reliable means of burnout for the lost wax caster All of these furnaces are enclosed in trouble freestainless steel cabinets Heating e...

Страница 3: ... Now youmerely slide thestainless steel tray s frombeneath thegrate at the end ofthe wax eliminationcycle andproceedwithburnout you have removed 90 or more of thecause of offensive odor and air pollution Thegrate is cast iron likea cook stoveburner for strong support and long life Grates and trays are sized to fitstandard electric burnout furnaces N0 WWT13 GRATE TRAY FIT NOS W13 W14 FURNACES 12 X ...

Страница 4: ...pear and the alarm will stop Remember All programming including permanent programs begins from ldLE 7 Now referto Permanent Program No 1 page 10 This is thewax burnout programwhich is 1 1 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 ...

Страница 5: ... If no hole has been provided one must be drilled CAUTION DO NOT DRILL INTO HEATING ELEMENT BE SURE THAT NO METAL IS IN CONTACTWITH THERMOCOUPLE METAL PARTS 4 Insert furnace line cord into socket on side of programmer NOTE 120Vand 240V PLUGS COME IN MANY STYLES IF YOUR PLUG DOES NOT MATCH THE SOCKET IT MUST BE REPLACED WITH ONE THATDOES FIT Your ComputerizedProgrammeris ratedfora maximum of 20 Amp...

Страница 6: ...e 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 illustrationbelow Flasks may touch edges not sides of each other as shown as long as the sprue holes are exposed After the wax eliminationcycle is complete the flasks must be removed so th...

Страница 7: ...R appears either when you are entering an alarm temperature or when the alarm is sounding during a firing To stop an alarm press any key except STOP If the alarm goes off when you first begin firing it is because it was set for a lower temperature than the present temperature Bad Program This message appears when a Ramp Hold firing has been programmed with 0 rate in the first segment Configuration...

Страница 8: ...ammed Full Speed The rate or temperature change per hour is maximum Temperature Hold When this message appears during Ramp Hold programming it is asking you if you want to hold or maintain the target temperature of that segment If so enter the length of hold time in hours and minutes i e 1 hour 20 minutes 01 20 The number after Hd is the segment number Each segment in a Ramp Hold firing is numbere...

Страница 9: ...nd Reset selected Type K your kiln would overfire On the other hand if you have a Type K thermocouple Type S selected would underfire your kiln The Type K thermocouple is standard on most kilns Safety This is the maximum temperature the Sentry is programmed for your kiln It can be altered only at the factory Skip Segment If you press the Skip Segment key during a firing SKIP will appear If you pre...

Страница 10: ...E MATERIALS KEEP CORDSET AWAY FROM HOTSIDES OF FURNACE DANGEROUS VOLTAGE DO NOT TOUCH HEATING ELEMENTS WITH ANYTHING DISCONNECTFURNACE BEFORE SERVICING NOTFOR HOUSEHOLD USE KEEP UNSUPERVISED CHILDRENAWAY TIME ANDTEMPERATURE DISPLAY During time display a center display period appears During temperature display the period disappears The center display period separates hours fromminutes EXAMPLE 1 hou...

Страница 11: ...OGRAM NO 1 EL AS FOLLOWS ACTION DISPLAY 1 Apply power ldLE alternatingwith current furnace temperature 2 Press 1 PROG alternatingwith EL 3 Press ENTER ldLE alternatingwith current furnace temperature Program saved 4 Press ENTER STRT The furnace startsfiringcycle WAX ELIMINATION Most injection waxes will become liquid at 200 F 93 C or less However some pattern waxes and plastics melt as high as 350...

Страница 12: ... completed press STOP Otherwise the furnace will continue to operate at 900 F until 8hours has passed andthen shut offautomatically Thedisplay willshow CPLt FLASK TEMPERATURE FOR CASTING We have used 900 F 480 C as casting temperature for the flask This temperature is suitable for most castings however many casters prefer other temperatures This setting is governed by experience You may use any ca...

Страница 13: ...nstructions below The program begins with a slowly rising temperature from ambient to 1350 F 730 C which requires approximately 8 hours The program then holds that temperature for2hours and thenreduces to a casting temperatureof900 F 480 C and holds for 5 hours Total time is 15to 16hours depending upon your load in the furnace ENTER PROGRAM NO 3 12Hr AS FOLLOWS ACTION DISPLAY 1 Apply Power ldLE al...

Страница 14: ...eave sprue hole down Afterburnoutis complete casting can be done Once casting iscomplete turnofffurnace by pressing STOP button Ifyou have not completed casting by the end of the final holding time the programmer will turn off PROGRAMMING A DELAY FIRING dELA Regardless of the programthat you run either built inorcustom you can insert a delay period beforethe firingprofile begins This willallow you...

Страница 15: ... SEGMENT 3 We will then lower the furnace temperatureto 900 F 480 C for our casting temperature We will program a 14hour hold time for this temperaturein case the operator is not ready to cast at the end of the 8 hour period NOTE YOU CAN PROGRAM ANY FLASK CASTING TEMPERATURE YOU WISH WE FINDTHAT 900 F IS A GOOD TEMPERATURE FOR CASTING 14KYELLOW GOLD IN MOST INSTANCES DELAY START You can also delay...

Страница 16: ...NG RATE rA B TEMPERATURE F or C C TIME HD In other words furnace temperature can be brought up from ambient to 300 F in 15 minutes or over a period of several hours This is governed by the RATE rA To figurethe HEATING RATE 3 variables must be considered 1 The ending temperature desired 2 The starting temperature 3 The length of time that this rate should take For example If we want to heat a 300 F...

Страница 17: ...r the temperature you want to reach in the 2ndsegment 13 Press 1350 1350 This is the temperature for the second burnout 1350 F 14 Press ENTER Hd 2 The programmeris askingforhow long youwantto hold 1350 F 15 Press 200 02 00 Two hours at 1350 F 16 Press ENTER rA 3 The programmer is asking for the 3rd segment rate of temperatureincrease or decrease 17 Press 450 0450 450 F per hour cooling down 18 Pre...

Страница 18: ...key board Enter the delay in hours and minutes such as 3 hours and 45minutes is 345 your display will show 03 45 and the press ENTER The display will then alternately display dELA and the time remaining for the delay WARNING NEVER LEAVE YOUR FURNACE UNATTENDEDNEAR THE END OF A FIRING WE CANNOT GUARANTEE YOUR FURNACE AGAINST OVERFIRING EVEN THOUGHTHE CONTROLLER IS AUTOMATIC THE OPERATOR ASSUMES FUL...

Страница 19: ...OP and normal temperaturedisplay will return ErrP appears afteran extended power failure In addition afteran extended power failure the controller will sound a steady alarm When ErrP appearson thedisplay press ENTER Thehours firedand furnace temperaturereached atthe time of the power failure will be displayed Then ldLE will display See the TROUBLE SHOOTING section of yourinstructions for causes ST...

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