The circuit breaker lights when power is applied to the dehydrator and automatically shuts off power when an electrical overload occurs.

The pressure gauge indicates the amount of pressure at the dehydrator outlet. The gauge is calibrated from 0 to 15 psi (103 kPa). The dehydrator is preset so that the outlet pressure should never be greater than 9 psi (62 kPa). All pressure valves given here refer to gauge pressure.

The outlet fitting is located at the upper right side of the dehydrator and has a compression nut with a removable protective cap. A 20-foot (6 m) length of 3/8 inch (9 mm) tubing and a compression nut are supplied to make the connection to the transmission line.

Annual routine maintenance of the dehydrator is recommended.

Technical Data
Input power (single phase):
1920E: 120 V, 60 Hz, 1100 VA
1921E: 120 V, 50 Hz, 1100 VA
1924E: 230 V, 50 Hz, 1100 VA

Circuit breaker rating:
1920E: 12 A
1921E: 12 A
1924E: 6 A

Power cord: 9 ft (2.7 m) 3-wire cord with one wire grounded to chassis

Dryer unit cycle:
1920E: 30 sec
1921E: 36 sec
1924E: 30 sec

Output capacity (standard):
1920E: 1.3 ft3/min (36 l/min)
1921E: 1.0 ft3/min (28 l/min)
1924E: 1.3 ft3/min (36 l/min)

Output dew point: below -40°F (-40°C)

Output pressure range: 3 to 8 psi (21 to 55 kPa)

Ambient intake temperature: 32 to 90°F (0 to 32°C)

Ambient relative humidity 95%

Outlet connector: 3/8 inch (9 mm) tube
Dimensions:
Width: 18.5 inches (470 mm)
Height: 15.25 inches (367 mm)
Depth: 14.5 inches (368 mm)

Weight: 40 lbs (18 kg)
Center
The installation, maintenance, or removal of antenna systems requires qualified, experienced personnel. Andrew installation instructions have been written for such personnel. Andrew systems should be inspected once a year by qualified personnel to verify proper installation, maintenance, and condition of equipment.

Andrew disclaims any liability or responsibility for the results of improper or unsafe installation practices.
Installation
  1. Place the dehyrdrator in an area where the humidity indicator will be conveniently visible.

  2. Remove the protective cap in the compression nut on the outlet fitting and discard the cap. The cap protects the dehydrator against entry of excessive amounts of moisture during storage and shipment.

  3. Connect the power cord to the power source and allow the dehydrator to operate until the humidity indicator shows a color of deep blue. This is the proper dry air exhaust condition. Note: This step may require a continuous run time of up to 24 hours.

  4. Disconnect the power cord.

  5. Remove the compression nut and ferrule from the outlet fitting and slide them onto the end of the tubing supplied as shown in Figure 3. Push the tubing onto the outlet fitting and hand-tighten the compression nut to the fitting. Connect the other end of the tubing to the transmission line connector in the same way.

  6. Reconnect the power cord to the power source. The dehydrator will operate automatically. Check the tubing end connections to make sure they do not leak. Note: During operation, some air leakage will occur around the compressor head. This is normal -- do not try to seal this leak because sealing will reduce drying capacity.


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