TENNEY ENVIRONMENTAL
Tenney Junior Test Chambers: Models TJR and TUJR, W942, or WF4
Page 13
- 50 HERTZ SUPPLIES -
LINE VOLTAGE MIN. / MAX. TABLE
Nominal
Voltage
Minimum
Voltage
Maximum
Voltage
200
180 220
220
198 242
50 Hz
Supply
Operation outside these
limits can result in damage
to the system's motors.
- 60 HERTZ SUPPLIES -
LINE VOLTAGE MIN. / MAX. TABLE
Nominal
Voltage
Minimum
Voltage
Maximum
Voltage
120
108 127
208
198 218
230
207 253
60 Hz
Supply
Operation outside these
limits can result in damage
to the system's motors.
5.7 Electrical Specifications
18 A, 100 / 120 V, 50 / 60 Hz, 1 PH
Your main power fused disconnect switch should be fused at 20 Amps.
5.8 Power Connection
Warning! Before making the power supply connection to your unit, you must perform the
following procedure:
1. Verify the power supply voltage rating established for your chamber (listed above). The voltage rating
is also found on the serial tag on the side of the oven. Note the rated value here:
2. Measure and record the intended voltage source. Note the measured value here:
3. Reference the “Line Voltage Min/Max Tables” below. Verify that the power supply voltage source you
measured and recorded is within the minimum and maximum allowable operating voltages for your
chamber rating. If it is not within this operating range, do not make the power connection! Otherwise,
erratic operation and damage may occur to your equipment, which may void your warranty. If you have
any questions, please call the Lunaire Service Department.
Important! One of the most common causes of equipment malfunction is low line voltage as the power
source to the unit. Ordinarily in this condition, the heat output would be reduced and the system's motors
would operate erratically, eventually overheat, and shut down. You must be certain that your equipment is
connected to a circuit with an adequate voltage and current source. An oversupply voltage would also cause
erratic operation and eventual shutdown, or damage to your equipment.
For CE European Marked Chambers Only: Chamber Fuse Type and Rating
1FU (Qty. 1) Gould Model GDG1/2 .5 A, 250 VAC Time-Lag
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