Phoenix International DryRod 300HT Series User manual

MODEL PART # DESCRIPTION (All 50-60 Cycles) TEMP
RANGE** INSULATION CHAMBER SIZE CAPACITY WEIGHT & DIMENSIONS
Type 300 High Temperature Series 120/240 Volt Models
with 10' Grounded Heavy-Duty Cord (No Plug)*
120˚ to 660˚F
(50˚ to 350˚C)
+/-25˚F (14˚C)
Adjustable
Thermostat
Control with
Indicator Light
2"
berglass
18" diameter
x 19" deep
400 lb (182 kg)
of 18" electrodes
Also accepts
10," 12" and 14"
electrodes
90 lb
29½" x 22½"
x 22½"
300HT 1200160 120/240V AC @ 1500 watts
300HT 1200161 120/240V AC @ 1500 watts with door mounted
thermometer installed
Type 900 High Temperature Series 240 Volt Models
with 10’ Grounded Heavy-Duty Cord (No Plug)*
30" diameter
x 27" deep
1100 lb (500 kg)
of 18" electrodes
Also accepts
electrodes
up to 24"
228 lb
36" x 36" x 36"
900HT 1200360 240V AC @ 4000 watts
900HT 1200361 240V AC @ 4000 watts with door mounted
thermometer installed
*Operation on Direct Current (DC) will damage oven and void warranty.
**Average stabilized temperature @ 70˚F ambient temperature.
OPERATING INSTRUCTIONS
Type 300HT Series
and Type 900HT Series
Electrode Stabilization Ovens
www.phx-international.com
8711 West Port Avenue •Milwaukee, WI 53224 USA •Telephone: [phone] •Fax: [phone]
Phoenix International, Inc.
N5466102A

www.phx-international.com
8711 West Port Avenue •Milwaukee, WI 53224 USA •Telephone: [phone] •Fax: [phone]
Phoenix International, Inc.
WIRING
Check type and voltage on nameplate.
1. Type 300HT (120/240V AC only) single phase shipped at
1/240V wiring
2. Type 900HT (240V AC only) single phase
Note: Type 300HT Series ovens are wired at the factory for 240
volts. For 120 volt use, add heating element jumper connection.
Rewire heating element connections per the 120 volt wiring
diagram. Provide a plug cap of the corresponding voltage rating for
connection to the power supply. Refer to wiring diagrams.
GROUNDING
1. Type 300HT Series ovens have a 10 foot power supply cord.
For 120 volt use, attach a 15 Amp 120 volt plug to the cord.
Rewire according to 120 volt wiring diagram.
2. Type 900HT Series ovens have a 10 foot power supply cord.
When used with a grounding plug cap and a grounded
receptacle, these ovens meet all local code requirements.
ELECTRODE PLACEMENT
DryRod® ovens have divided shelves to allow storage of more
than one group of electrodes. It is recommended to store
different electrodes in separate ovens to avoid contamination.
Spread the electrodes evenly, allowing space over each shelf
for air circulation required to remove excess moisture. The
maximum suggested layer depth on any shelf is 5 inches.
GUIDE TO STORAGE
Electrodes should be stored according to electrode supplier
recommendations. In the absence of detailed storage
information from your electrode manufacturer, the Guide To
Electrode and Flux Stabilization section in this manual may be
used as an indication of approximate temperatures.
A laminated version of the Guide To Electrode and Flux
Stabilization is available by contacting Phoenix International.
VENTING
Before placing the oven into service, run the oven at 550˚F
(255˚C) for two hours with vent hole fully open. This will help to
purge the oven of any contaminates. (Smoke exiting from vent
hole is common during burn-off of contaminates.)
For normal holding operation, set easily adjustable vent on the
door about ¼ open. For replacement vents, see Replacement
Parts section in this manual.
TEMPERATURE SETTING
Type 300HT and 900HT Series oven temperature range is 120°F
(50°C) to 660°F (350°C). The thermostat dial (at rear of oven) is
calibrated at 120°F (50°C) to 660°F (350°C).
Required oven temperature setting is obtained by rotation of
thermostat dial to line up desired temperature with indicator
light in the thermostat housing.
The indicator light illuminates only when voltage is being
applied to the heating elements. Momentary rotation past desired
temperature setting may be necessary to activate the indicator
light in order to locate it for indexing purposes.
Thermostat is accurate to +/-25°F (14°C) at the sensing bulb;
however, temperature may vary slightly at different areas
in the oven chamber since this is a convection type oven.
For applications requiring higher temperature, an electrode
rebaking oven is required. (We suggest Phoenix Type 40HT High
Temperature Oven.)
At the maximum setting, the actual temperature in portions of
the oven near the heating elements may reach approximately
700°F (371°C).
Temperatures over 660°F (350°C) are not recommended. They
may cause oven damage and/or unacceptably high exterior
surface temperatures.
REPAIR: SPARE PARTS
These instructions contain wiring diagrams and a repair parts
list for your DryRod® oven. For critical welding operations
requiring continuous holding, we would suggest carrying all the
parts listed in the Suggested Spare Parts section in this manual.
(Spare parts are available at www.phx-international.com or by
contacting your local distributor.)
AMP DRAW
Type 300HT Series Oven: 120V = 12.5 amps, 240V = 6.3 amps
Type 900HT Series Oven: 240V = 16.7 amps
OVEN DESCRIPTION
A Door Mounted Thermometer (Part
#1250300) is available for Type 300HT and
900HT ovens and can be easily installed in
the field. Factory installation is available with
original order (see chart on cover). This
thermometer indicates internal temperature
range of 100˚ to 700˚F with an accuracy
specification of +/-10˚.
ACCESSORY NOTE:

Type 300HT/900HT Series Electrode Stabilization Oven
OVEN FAILS TO OPERATE: NO HEAT/OVERHEATS
1. If oven indicator light will not illuminate, check power supply.
2. Check plug at outer end of power cord and run continuity
check on complete power cord. If defective, replace cord
assembly.
3. Check indicator light for continuity. If defective, replace
indicator light.
4. Check thermostat at rear of oven. If indicator light
illuminates, power is being supplied through thermostat
to dual heating elements. Turn knob from low to high
setting and return. Definite “snap” should be heard at
low temperature end and indicator light should turn off
and on with each “snap” cycle. If “snap” is not heard and
indicator light fails to operate, replace entire thermostat. (See
Replacement Parts section in this manual.)
5. If thermostat operates satisfactorily, check continuity of
dual hairpin style heating elements at bottom center of oven.
Failure of one element will cause very slow heating.
6. If thermostat operates satisfactorily, recalibrate thermostat.
(See Checking Thermostat Calibration section in this manual.)
DOOR WILL NOT CLOSE PROPERLY
1. Use screwdriver to adjust door latch.
2. If latch is broken, replace with Door Latch & Strike (Part
#1252200). (See Replacement Parts section in this manual.)
All wiring should be done by licensed
electricians in accordance with state and
local codes, as well as the NEC (National
Electrical Code) Standards. Improper
installation or use may result in serious
injury. Always remove oven from power
source before troubleshooting or repairing.
CAUTION:
WIRING DIAGRAMS
TROUBLESHOOTING
NOTE:
When replacing heating elements, always
replace both elements. Pairing of one new
element with an old element will cause
rapid failure of old element.
NOTE:
The above wiring diagram should be used
for wiring Type 900HT Series ovens. Two
jumpers should be used and placed in both
locations for operation on 240V single phase
power. Type 900HT Series ovens are rated
to operate on 240V single phase power.
Variation in voltages within 10% of 240V are
acceptable but modifications should not be
made to the unit.
THERMAL
COUPLE
PROBE
VARIABLE
THERMOSTAT
PILOT
LIGHT
CONDUIT
BOX
WHITE
BLACK
GREEN
JUMPER
2 OF 2
JUMPER
1 OF 2
HEATING
ELEMENT
THERMAL
COUPLE
PROBE
VARIABLE
THERMOSTAT
PILOT LIGHT
CONDUIT
BOX
WHITE
BLACK
GREEN
HEATING
ELEMENT
WIRING DIAGRAM FOR:
Type 300HT Series 120V
Type 900HT Series
WIRING DIAGRAM FOR:
Type 300HT Series 240V

www.phx-international.com
8711 West Port Avenue •Milwaukee, WI 53224 USA •Telephone: [phone] •Fax: [phone]
Phoenix International, Inc.
SUGGESTED SPARE PARTS
Type 300HT Series
For normal daily operation, the following spare parts and
quantities are recommended to have inventoried for every
10 Type 300HT Series ovens in use.
Type 900HT Series
For normal daily operation, the following spare parts and
quantities are recommended to have inventoried for every
10 Type 900HT Series ovens in use.
NOTE:
For users of large oven quantities or users
not in North America, we recommend
inventorying of additional spare parts to
support day to day operation.
SUGGESTED SPARE PART QUANTITY PER
10 OVENS PART #
Heating Element Kit 1 1250800
Thermostat Kit 1 1251400
Door Latch and Strike 1 1252200
Insulation Block 1 1252401
SUGGESTED SPARE PART QUANTITY PER
10 OVENS PART #
Heating Element Kit 1 1250900
Thermostat Kit 1 1251400
Cord Kit 1 1257121
Door Latch and Strike 1 1252200
Insulation Block 1 1252400
THERMOSTAT KITHEATING ELEMENT KIT
INSULATION BLOCKDOOR LATCH AND STRIKE
Each thermostat is adjusted at the factory and calibrated on precision instruments to control temperatures
accurately. Adjustment or re-calibration is not needed unless the thermostat has been mishandled in transit
or changed or abused while in service.
To Check Calibration:
1. Use a good grade mercury thermometer to check
temperature. For griddle control, use a disc type
thermocouple. Drop a couple drops of oil on
griddle surface plate and place thermocouple disc
flat into the oil.
2. Turn the dial of the thermostat to 325˚ mark.
3. Allow enough time for temperature to stabilize or
until several temperature readings are identical.
To Calibrate:
1. Remove knob from dial shaft by pulling knob
straight out.
2. With screwdriver, turn screw clockwise to decrease
and counter-clockwise to increase temperature. Do
not allow dial shaft to turn during this operation.
A 1/4 turn of the screw equals approximately 35˚.
3. Replace knob or control dial.
4. After calibrating, let the appliance operate until
the temperature has stabilized, then recheck to
determine if the calibration has been successful.
CHECKING THERMOSTAT CALIBRATION
Model ST Stacking provision for Type 300HT ovens is available with original order.
Stacking permits two Type 300HT ovens to occupy the same floor space as one. For
each stack, only ONE oven needs to be ordered with the stacking lugs. Stacking lugs
(factory installed only) on lower oven bolt to feet of any Type 300HT oven, whether in
the field or newly ordered.
ACCESSORY NOTE:

Type 300HT/900HT Series Electrode Stabilization Oven
# DESCRIPTION QTY OVEN TYPE
300HT 900HT
1Vent Cover Kit (Includes two vent covers) 1 1257152
6Door Latch & Strike 1 1252200
8Thermostat Housing 1 1250810 2200200
7Insulation Block 1 1252401
2Thermostat Kit
1251400Thermostat 1
Thermostat Knob 1
Cord Kit
1257121Connection Cord 1
Cord Grips (7W-2) 1
3Heating Element Kit
1250800 1250900
Element 2
Jumper 2
Retainer 1
Lead Kit 1257127
Lead 2
5Shelf Assembly Kit
1255100 1801200Shelf Assembly 1
Angle Clip 1
Conduit Kit
1257151
Conduit Box 1
Conduit Box Cover 1
Conduit (½”) 1
Conduit Connectors (½”) 2
4Door Mounted Thermometer Kit
1250300
Door Mounted Thermometer 1
Mounting Bracket 1
Cover 1
To order spare or replacement parts please visit our website: www.phx-international.com.
When ordering, please confirm that you are ordering parts for the correct oven.
ORDERING INFORMATION
REPLACEMENT PARTS
6Door Latch & Strike
7Insulation Block
8Thermostat Housing
2Thermostat Kit
3Heating Element Kit
(Type 300HT Shown)
5Shelf Assembly Kit
(Type 300HT Shown)
4Door Mounting Thermometer Kit
1Vent Cover Kit

www.phx-international.com
8711 West Port Avenue •Milwaukee, WI 53224 USA •Telephone: [phone] •Fax: [phone]
AWS (TYPE)
Air Conditioned Storage
Before Opening
(RH=Relative Humidity)
DryRod®Oven Holding
Temp After Opening
After Exposure to Moisture,
Sucient Amount of Time to Aect Weld Quality
Recondition Step #1 Rebake Step #2
Cellulose
EXX10, EX11, EXX20
70˚–120˚F (21˚–49˚C)
50% Max RH 100˚–120˚F (38˚–49˚C) Not Recommended Not Recommended
Titania
EXX12, EX13, EXX14
70˚–120˚F (21˚–49˚C)
50% Max RH 100˚–120˚F (38˚–49˚C) 180˚–230˚F (82˚–110˚C) ½ Hour
250˚–300˚F (121˚–149˚C)
1 Hour
Iron Powder M.S.
EXX24, EX27
70˚–120˚F (21˚–49˚C)
50% Max RH 100˚–120˚F (38˚–49˚C) 180˚–230˚F (82˚–110˚C) ½ Hour
400˚–500˚F (204˚–260˚C)
½ Hour
Iron Powder Low Hydrogen
EXX18, EX28
Low Hydrogen
EXX15, EX16
Low Hydrogen High Tensile
EXXX15, EXX16, EXXX18
70˚–120˚F (21˚–49˚C)
50% Max RH 250˚–300˚F (121˚–149˚C) 180˚–220˚F (82˚–104˚C) 1½ Hour
650˚–750˚F (343˚–399˚C)
1 Hour
Stainless
EXXX-15, EXXX-16
40˚–120˚F (4.5˚–49˚C)
60% (+/-10) Max RH 250˚–300˚F (121˚–149˚C) 180˚–220˚F (82˚–104˚C) 1½ Hour
500˚–600˚F (260˚–316˚C)
1 Hour
Inconnel
Monel
Kickel
Hard-Surfacing
40˚–120˚F (4.5˚–49˚C)
60% (+/-10) Max RH 150˚–200˚F (66˚–93˚C) 180˚–230˚F (82˚–110˚C) ½ Hour Not Recommended
Brasses
Bronzes
40˚–120˚F (4.5˚–49˚C)
60% (+/-10) Max RH 150˚–200˚F (66˚–93˚C) Not Recommended Not Recommended
Granulated Flux
Agglomerated Flux
40˚–120˚F (4.5˚–49˚C)
60% (+/-10) Max RH 100˚–200˚F (38˚–93˚C) Contact Manufacturer for Specic Temperatures
Flux Cored Wire
EXXT-1, EXXT-2,
EXXT-5, EXXT-G
40˚–120˚F (4.5˚–49˚C)
60% (+/-10) Max RH 250˚–300˚F (121˚–149˚C) Contact Manufacturer for Specic Temperatures
NOTE: Proper redrying temperatures depend upon the electrode type and its condition. Contact your electrode manufacturer for specic instructions involving critical operations. Phoenix
International, Inc. does not accept liability for damage to electrodes and/or welded products resulting from the use of this table. Temperatures and times shown are recommended and are not
guaranteed to be correct.
Eliminate expensive rework and protect welding profits!
•Recondition/rebake procedures for electrode coatings exposed to moisture are included.
•Removeelectrodesfromcardboardcontainersbeforeplacinginovens.
•Electrodecoatingsshouldnotbeexposedtothere-bakingtemperaturewithoutfirstbeingreconditionedata
lower temperature. Failure to do so may result in breakdown of electrode coatings. After re-baking, lower
temperature to holding level until reissued.
GUIDE TO ELECTRODE & FLUX STABILIZATION
WARRANTY
Phoenix International, Inc. warrants its products against defects in
material and workmanship. The company will, at its discretion, repair
or replace any properly installed Phoenix International manufactured
product which fails under normal operating conditions within one year
from date of receipt. Contact the factory for return authorization before
returning the product to Phoenix International freight prepaid. If our
inspection confirms that the product is defective under terms of this
warranty, it will be repaired/replaced and returned freight prepaid.
This warranty applies only to products sold by Phoenix International,
Inc. and specifically excludes installation or de-installation labor,
transportation or equipment of another manufacturer used in
conjunction with Phoenix International products. No other warranty,
expressed or implied, exists beyond this warranty declaration.
Phoenix constantly strives to improve its products and therefore reserves
the right to change design, materials and specifications without notice.
The Guide to Electrode & Flux Stabilization
is also available as a laminated card.
Please visit www.phx-international.com or email [e-mail] to receive yours FREE!