Chromalox ARC-519 Petunjuk Pemasangan Dan Identifikasi Suku Cadang Pembaruan - Halaman 3
Jelajahi secara online atau unduh pdf Petunjuk Pemasangan Dan Identifikasi Suku Cadang Pembaruan untuk Termostat Chromalox ARC-519. Chromalox ARC-519 3 halaman. Thermal cutout
Halaman CetakELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing thermostat. Failure
to do so could result in personal injury or property
damage. Thermostat must be installed or serviced
by a qualified person in accordance with the
National Electrical Code, NFPA 70.
1. Electric wiring to the control must be installed in accordance with
the National Electrical Code and with local codes by a qualified
person as defined in the NEC. WARNING: Use copper con-
ductors only.
2. Entrance for wiring is provided by two 1/2" conduit holes in end
of base plate.
3. Remove knob cover. (See Figure 5.)
4. Set thermostat knob to OFF position and then remove knob by lift-
ing knob from shaft. (See Figure 6.)
5. Loosen two screws from end of base plate and remove ther-
mostat cover. (See Figure 7.)
Reset Button
Load
Pilot Light
Figure 8 — When load does not exceed
rating of thermostat.
Figure 10
HAZARD OF SHOCK. Extreme care should be exer-
cised during calibration adjustments because of
shock hazard due to exposed electrical terminals.
Disconnect all power before attempting to cali-
brate cutout.
These controls are factory calibrated to the range indicated on
the control adjustment knob.
If calibration is required, either one of two methods may be fol-
lowed.
A. If accurate measurement standards are not available, the
thermostat can readily be adjusted to a known temperature
standard such as boiling water (212˚F). (See Figure 10.)
B. With the aid of an accurate thermometer or other tempera-
ture measuring device, recalibration may be performed
within the process as in Figure 11.
For either method, the following general calibration procedures
should be followed.
Flow Factor~ 216-765-4231
Thermostat
Line
Line
CALIBRATION
Thermometer
Load (Tank, Vat, Die or Platen)
www.flowfactor.com
WIRING
Figure 5
6. Connect wires according to wiring diagrams (Figures 8 and 9).
Note: Electrical connections should be made with generous
loops of wire — approximately 6" per lead.
7. Replace cover, tighten screws, replace dial knob and dial knob
cover.
8. Note: If load amperage or voltage rating exceeds switch rat-
ing, a contactor must be used. Contactor and wiring to be sup-
plied by customer. (See Figure 9.)
Contactor
Load
Line
Reset Button
Pilot
Figure 9 — Three phase and single phase when load
exceeds rating of thermostat.
Figure 11
1. Remove knob cover, knob and thermostat housing as per
instructions 3, 4, 5 under WIRING.
2. Replace knob and turn to highest temperature setting.
3. Slowly turn knob when controls click "off", compare the dial
reading against the thermometer reading.
4. If they do not agree —
A. Set dial knob to thermometer temperature reading and pull
off knob.
B. While holding the adjusting shaft (B) tightly, turn small
center adjusting screw (A) with small screwdriver (C) until
thermostat clicks "off". (See Figure 12.)
Note: Always use extreme care not to damage the slot in the
center adjusting screw.
C. Each quarter turn of the screw will change the calibration
approximately 30˚F:
— Clockwise to decrease temperature.
— Counterclockwise to increase temperature.
D. Recheck calibration and repeat process if closer calibration
is required.
Figure 7
Figure 6
Thermostat
Control
Circuit
Light
C
Screwdriver
Adjusting
Set Screw
Figure 12
B
Adjusting
Shaft
A