TPI 680 Series Operating Instructions

MODEL NO
HF684TC
HF685TC
HF686TC
Check heater voltage and phase on data tape on back of heater to make sure they are the same as the electrical service
supplied. Heater coded with "HF" will operate on either 240 or 208 volts. High Temperature, Keep Electrical Cords, Drapery,
And Other Furnishings At Least 0.9M (3 ft.) Away From The Front, Side And Rear Of Heater.
Be sure that the electrical receptacle is of the configuration and capacity appropriate for the heater. The heater may be
used as a heavy duty portable. It may also be hung on the wall or ceiling by loosening the vertical adjustment knobs on
each side of the heater and swinging the cradle to a position where the "bottom" of the cradle is to the rear or above the
heater. The heater may be hung to the wall or ceiling using the keyhole slots in the base or holes provided for threaded rod
(supplied by others). The wall/ceiling hanging structure and anchoring provisions must be of sufficient strength to support
the combined weight of the heater and hanging bracket. To facilitate hanging of the heater, it may be removed from the
cradle and replaced after the cradle is hung. The proper receptacle can be installed adjacent to the hanging location.
To operate heater, turn thermostat knob as far as it will go in a clockwise direction. When temperature reaches desired
comfort level, slowly turn thermostat counterclockwise until heater shuts off. One or two minor adjustments may be necessary
as the heat becomes better distributed throughout the area.
Heaters are equipment with a permanently lubricated motor and, therefore, no maintenance other than occasional cleaning
is required.
"WHEN CLEANING OR DISASSEMBLING HEATER, BE SURE TO DISCONNECT HEATER CIRCUIT."
All heaters are equipped with a thermally actuated manual reset limit control which automatically disconnects heating element
and motor in the event normal operating temperatures are exceeded. If heater should fail to operate with thermostat turned
clockwise to its limit, disconnect heater and wait a few minutes allowing heater to cool. Using a small straight object such
as a pencil, push in button located inside small hole marked RESET. The thermal cutout almost invariably indicates a partial
or complete blockage of the air intake or exit. Be sure to keep these areas clear in order to allow proper circulation of air.
OPERATING INSTRUCTIONS
UTILITY UNIT HEATERS 680 SERIES
WATTS BTUH
4000/3000 13,562/10,239
4800/3600 16,393/12,295
5600/4200 19,113/14,335

INSTALLATION INSTRUCTIONS

THERMAL CUTOFF DEVICE

30 Amp Plug Configuration2
NEMA #6-30PN
VOLTS
60 HZ
240/208
240/208
240/208
CAUTION

OPERATION

MAINTENANCE

0 Amp Plug Configuration
EMA #6-20P
PLUG
LINE AMPS
ON CORD SET
16.7/14.4 20AMP
20.0/17.3 30AMP
23.3/20.2 30AMP
TPI CORPORATION
P.O. Box 4973, CRS
Johnson City, TN 37602-4973
FORM: 9459