TPI Corporation Fostoria OCH2 Series User manual

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 1 of 9
TPI Corporation
P.O. Box 4973
Johnson City, TN 37602
IMPORTANT SAFETY
INFORMATION INSIDE
• Serious injury or death possible
• Read, understand and follow
all safety information and
instructions in this manual
before using or servicing this
product.
• Retain these instructions for
future reference.
*EXCLUDING RESIDENCES
OCH2 series
Direct Wired Units
*Indoor and Outdoor Comfort Heaters
REFER TO COMPLETE
INDEX OF
INFORMATION ON
PAGE 2

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 2 of 9
Index Page 2
Safety Signal Word Denitions Page 2
Important Instructions Page 3
Specications Page 4
Quartz Tube Installation Page 5
Heater Installation Pages 5, 6 & 7
Wiring Diagrams Page 7
Wiring Instructions Page 8
Maintenance Page 9
Troubleshooting Page 9
QUARTZ TUBE INSTALLATION
ATTENTION:
The table to the right provides denitions of the signal words that
can be found throughout this manual. These signal words are
used to express the severity of the hazard at hand. The signal
words are generally used in conjunction with safety symbols that
correspond to the text for that particular hazard. As you read
this manual, refer back to this table when you are unsure of the
signal word denition.
SIGNAL WORD DEFINITIONS
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury
WARNING indicates an imminently hazardous situation
which, if not avoided, could result in death or serious
injury
CAUTION indicates an imminently hazardous situation
which, if not avoided, may result in minor or moderate
injury
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may
result in property damage.
As dened in ANSI Z535-4-2002

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 3 of 9
IMPORTANT INSTRUCTIONS
When using electrical appliances, basic precautions should always be followed to reduce the risk of re, electrical
shock, and injury to persons, including the following:
1. Read all instructions before using this heater.
2. CAUTION:High temperatures. Keep cords and all other combustible material, such as furniture, papers,
clothes and curtains away from the heater. For safe and efcient operation, heaters must be mounted a
minimum of 30” from a vertical surface, a minimum of 6-3/4” from the ceiling, A minimum of 72” from direct
radiation to combustibles, and a minimum of 2.4M (7.5’) above the oor. Heaters must be at least 36” apart.
ATTENTION - HAUT TEMPÉRATURES. Pour un fonctionnment súr et efcace. CHAUFFE doit étre monté un
Minimum de 30 “d”une surface vertical, un minimum de 6-3/4” du plafond, un minimum de 72 “
DE RADIATION DIRECTE DE COMBUSTIBLES ET UN MIN MUM DE 2.4M (7.5’) FROM LE
SOL. NE PAS UTILISER CETTE BOITE DE CABLAGE. UTILISER 90°C FIL MINIMUM
DÉBRANCHER before ENTRETIEN.
3. Extreme caution is necessary when any heater is used by or near children or invalids and whenever the
heater is left operating and unattended.
4. Do not operate any heater after it malfunctions, has been dropped or damaged in any manner. Return heater
to authorized service facility for examination, electrical or mechanical adjustment, or repair.
5. To disconnect heater, turn controls to off, and turn off power to heater circuit at main disconnect panel (or
operate internal disconnect switch if provided).
6. Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric
chock or re, or damage the heater.
7. To prevent a possible re, do not block air intakes or exhaust in any manner.
8. A heater has hot and arcing or sparking parts inside. WARNING: Do not use it in area where gasoline, paint,
or ammable liquids are used or stored.
9. Use this heater only as described in this manual. Any other use not recommended by the manufacturer may
cause re, electric shock, or injury to persons.
10. This heater may include an audible or visual alarm to warn that parts of the heater are getting excessively hot.
If the alarm sounds (or illuminates), immediately turn the heater off and inspect for any objects on or adjacent
to the heater that may have blocked the airow or otherwise caused high temperatures to have occurred. DO
NOT OPERATE THE HEATER WITH THE ALARM SOUNDING (OR ILLUMINATING).
11. SAVE THESE INSTRUCTIONS

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 4 of 9
SPECIFICATIONS
DESCRIPTION
Fostoria multi-purpose OCH2 series electric infrared
heaters are designed to provide efcient spot heating
for many commercial and industrial applications. All
models operate with dual quartz tube emitters included
with the heater, are easily installed, and are equipped
with spectral reectors for excellent radiant output.
They are built with corrosion-resistant materials and
are listed for both INDOOR (excluding residences)
AND OUTDOOR applications in the USAand Canada.
Housing OCH2 20 ga Galvannealed / Finish: Hi Temp Brown powder coat
OCH2-SS 20 ga Type 304 Grain Line Stainless Steel / Finish: No. 3
Reectors and End Caps 0.040” gold annodized aluminum
Suspension Adjustable Mounting Backet or Chain
Model P/N Tube P/N
(2per) Watts Volts Amps Dim A* Dim B* Dim C*
SUPPLY
WIRE SIZE
90°C AWG.
OCH2-55-208V 04915502 04914702 4000 208 19.2 55.0” 7.500” 10.625” 10
OCH2-55-240V 04915602 04914802 4000 240 16.7 55.0” 7.500” 10.625” 10
OCH2-55-277V 04915702 04914902 4000 277 14.4 55.0” 7.500” 10.625” 12
*OCH2-55-480V 04915802 *04914802 4000 480 8.3 55.0” 7.500” 10.625” 12
OCH2-55-208V-SS 04915902 04914702 4000 208 19.2 55.0” 7.500” 10.625” 10
OCH2-55-240V-SS 04916002 04914802 4000 240 16.7 55.0” 7.500” 10.625” 10
OCH2-55-277V-SS 04916102 04914902 4000 277 14.4 55.0” 7.500” 10.625” 12
*OCH2-55-480V-SS 04916202 *04914802 4000 480 8.3 55.0” 7.500” 10.625” 12
OCH2-66-208V 04916302 04915002 6000 208 28.8 66.0” 7.500” 10.625” 8
OCH2-66-240V 04916402 04915102 6000 240 25 66.0” 7.500” 10.625” 8
OCH2-66-277V 04916502 04915202 6000 277 21.7 66.0” 7.500” 10.625” 10
*OCH2-66-480V 04916602 *04915102 6000 480 12.5 66.0” 7.500” 10.625” 12
OCH2-66-208V-SS 04916702 04915002 6000 208 28.8 66.0” 7.500” 10.625” 8
OCH2-55-240V-SS 04916802 04915102 6000 240 25 66.0” 7.500” 10.625” 8
OCH2-55-277V-SS 04916902 04915202 6000 277 21.7 66.0” 7.500” 10.625” 10
*OCH2-66-480V-SS 04917002 *04915102 6000 480 12.5 66.0” 7.500” 10.625” 12
*480V MODEL USE (2) 240V ELEMENTS WIRED IN SERIES
EXPLOSION HAZARD
FIRE HAZARD
• Serious injury or death may occur.
• Do not use in locations containing
hazardous atmospheres.
• Do not use inside residences.
A
C
B

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 5 of 9
Each heater is equipped with hi-temperature lead wires and
one green lead wire for ground termination. Make sure the
power source conforms to the heater requirements. Use
only Fostoria quartz tubes.
1. Insert quartz tube in the “L”-shaped slots in heater housing.
2. On each end of the quartz tube, place (1) lead wire ring
terminal, (1) split washer and (1) hex nut on the threaded
stud and tighten securely (see image below). Split
washers and hex nuts are provided in hardware package.
► All Lead wires are already installed in your heater
with the exception of 480V models. 480V models utilize a
series wire connection with a jumper lead wire located in
the hardware package. Refer to Wiring Diagrams on Page
7.
NOTE – Use a second wrench to hold the inner hex nut
in place while tightening the outer hex nut. Failure to
securely tighten this connection will cause the element to
fail prematurely.
QUARTZ TUBE
LOCK WASHER
RING TERMINAL
HEX NUT
ELECTRICAL SHOCK
HAZARD
• Serious injury or death may
occur.
• Disconnect from electrical
supply before installing or
servicing any heater.
• Reector end caps must be
installed prior to powering
the unit; refer to note #3.
QUARTZ TUBE INSTALLATION
HEATER INSTALLATION
3. Attach reector end caps to both ends of housing using
the (4) screws provided in hardware package.
MINIMUM INSTALLATION CLEARANCES
FIRE HAZARD
• Serious injury or death may occur.
• Read and follow clearances shown
in box at left for ALL OCH2 series
heater installations.
• Do not use inside residences.
These heaters MUST be installed as follows:
• 30 inches minimum from a vertical surface
• 82 inches minimum from ANY combustible
material
• 6-3/4 inches minimum from the ceiling
• 36 inches minimum from other heaters
NOTE: For optimum spot heating performance, it is recommended that the distance from the oor
should be approximately 7 to 9 feet for OCH2-55 models, and 8 to 10 feet for OCH2-66 models.
Install heater so that the quartz tubes
are horizontal. Failure to do this may
cause the heating element within the
tube to sag and cause premature
burnout.

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 6 of 9
HEATER INSTALLATION continued
Y our OCH2 series heater can be mounted with either
adjustable mounting brackets or chain suspension.
Both options are included with your heater.
Standard Mounting:
In the carton insert shipped with your heater you will
nd two adjustable mounting brackets and a hardware
pack with fastening hardware. Using the mounting
centers specied in gures 1 & 2, mount your adjust-
able mounting brackets (bends to the inside). Once
mounted, assemble the heater to brackets (gure 3)
with mounting hardware, these brackets enable the
heater to be angled in 15-degree increments up to 45
degrees.
Chain Suspension:
The heater can also be chain-hung as shown in gure
4. Cut the 16ga. chains (two 4 foot chains are provid-
ed) to desired length. Attach chains to heater with “S”-
hooks provided and suspend from overhead structure.
Crimp “S”-hooks closed after assembly.
Figure 1: end view
Figure 2: side view
ELECTRICAL SHOCK
HAZARD
• Serious injury or death
may occur.
• Disconnect from electrical
supply before installing or
servicing any heater.
• Read and follow
installation clearance
requirements on page 4.
Figure 3: mounting view
10-32 x ½”
Screws
Mounting
Bracket
10-32 Nylon
Lock Nut
Install heater so that the quartz tubes are horizontal.
Failure to do this may cause the heating element
within the tube to sag and cause premature burn-
out.
647
64
59
16
33
4
0° TO 45° AT
15° INCREMENTS
OCH2-66 = 65.0"
OCH2-66 = 66.0"
OCH2-55 = 55.0"
OCH2-55 = 54.0"

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 7 of 9
Figure 4: end view
HEATER INSTALLATION continued
Figure 5: mounting view
Wiring Diagrams
SERIES CONNECTION
HI TEMP WIRES
HI TEMP JUMPER
LEAD SUPPLIED IN
HARDWARE
PACKAGE
QUARTZ LAMP
QUARTZ LAMP
L1
L2
QUARTZ LAMP
QUARTZ LAMP
L1
L2
N
GND
HEATER
JUNCTION BOX
WIRING DIAGRAM ALL 480V MODELS
HEATER
JUNCTION BOX
FIELD
WIRING
HI-TEMP SLEEVING SUPPLIED
IN HARDWARE PACK HI TEMP WIRES
PARALLEL CONNECTION
WIRING DIAGRAM ALL MODELS EXCEPT 480V
FIELD
WIRING
GND
HI-TEMP SLEEVING SUPPLIED
IN HARDWARE PACK
Heater
Wiring
L1-L2(N)
Heater Chasis
Ground Wire
Sleeving
(Provided in
Hardware
Pack)
Field
Wiring
Fiqure 6: Install sleeving
CEILING
W
A
L
L
FLOOR
82"
(MIN.)
63
4"
(MIN.)
63
4"
(MIN.)
30"
(MIN.)
63
4"
(MIN.)
85"
(MIN.)

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 8 of 9
ELECTRICAL SHOCK
HAZARD
• Serious injury or death may
occur.
• Disconnect from electrical
supply before installing or
servicing any heater.
• This appliance must be
connected to a properly
*bonded (grounded electrical
source.
• Read and follow all safety
information in box below.
WIRING INSTRUCTIONS
JUNCTION BOX and CONDUIT
Required conduit size: ½”
All conduit, ttings and junction boxes are supplied by
the customer.
Conduit connections can be made at either of
two locations. The end of the heater or the back of
heater. A water tight hole plug is provided for sealing
the unused hole.
Water tight hole plug installation: The provided hole
plug is for water tight applications and can be difcult
to install because of the tight t. Start the plug into the
hole being sealed. Using a blunt rounded object (ie,
screwdriver handle) rmly press the center of the hole
plug inward untill the plug snaps into place.
TOTALLY EXPOSED OUTDOOR APPLICATIONS
For totally exposed outdoor applications (not ceiling
protected) all conduit, ttings and junction boxes must
be NEMA Type 4 or equal. The provided water tight
hole plug MUST be used to seal unused hole. (See
above for proper plug installation).
INTERNAL WIRING DIAGRAM
OCH2 heaters are equipped with hi-temperature
silicone lead wires and one (1) bonding* (ground)
lead wire. Supply wires must be copper and rated
for at least 90ºC. Also supplied in the hardware
pack are High Temp
Fiberglass Sleeving that MUST be installed on your
supply wiring and extend from the point of entry into
the heater junction box to the wire connection.
1. Terminate eld bonding wire to the bonding
(ground) wire of the heater with wire nuts (customer
supplied).
2. Slide Fiberglass Sleeving (provided in hardware
pack) over supply wiring covering the entire wire to
the entry point into the heater junction box (conduit
connector). Terminate L1 and L2(N) eld wires to
the power wires of the heater with approved wire
nuts (customer supplied)
(See Figure 6 Page 7)
(See Wiring Diagrams Page 7)
*Bonding is the term that describes the completion of
the electrical circuit back to its source, which allows a
breaker or fuse to clear if a short occurs in the line.
► Use proper conduit ttings to prevent
wires from touching the housing’s metal
edges.
► Make certain the power source conforms
to specications on the heater label.
► Do not depend on a thermostat or other
switch as the sole means of disconnecting
power when installing or servicing heater.
Always open the safety switch and lock it
open.
► All wiring must be performed by a licensed
electrician.
► Never connect the green or green-yellow
wire to a live or “hot” conductor.

Issue Date: 08/09/19 Rev. Date: Rev. Level: - ECO 1-7553 OIPM P/N: 8213 Page 9 of 9
MAINTENANCE
1. Always disconnect heater from power supply before
performing any maintenance or service.
2. Periodically clean the reector with a dampened
soft cloth using mild detergent. Rinse with water
and wipe dry with a clean soft cloth.
ELECTRICAL SHOCK
HAZARD
• Serious injury or death may
occur.
• Disconnect from electrical
supply before installing or
servicing any heater.
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Element does not
energize
1. Defective element
2. Improper connection
1. Replace element
2. Check connection to power outlet.
Not enough heat 1. Heater too small for application
2. Heater mounted too high or too
far.
1. Add additional heater(s)
2. Decrease mounting height or
distance
Too much heat 1. Heater too large for application
2. Grease or moisture on tube.
1. Replace with smaller heater
2.
Increase mounting height or distance.
Hot spot in tube. 1. Heater is not level
2. Grease or moisture on tube.
1. Adjust to a level mount.
2. Clean tube-replace if problem persists.