HBM 150/2 Installation and Maintenance Manual
11
To install power cord, perform the following procedure:
1. Unscrew the two door latches and open the chassis door.
2. Route the cable through the hole in the bottom of the chassis. Install a ½”
liquid-tight conduit fitting in the chassis hole.
3. Connect the power cord at the terminal strip as follows: Attach the black
wire (120 VAC) to the terminal marked
∅
, the white wire (neutral) to the
terminal marked
N
, and the green wire (ground) to the terminal marked
G
.
4.3.3 Optional Heater Wiring
The optional heater assembly consists of a 400-watt heating element and
thermostat. The heater assembly should be connected through a power cord to
a separate circuit breaker, so that it may remain operable when the beacon is
turned off. The circuit breaker should be switched off during the summer months.
When the temperature drops below +32°F (0°C), the thermostat activates the
heater, which is attached to the motor gearbox. The gearbox lubricant is warmed
and this facilitates rotation of the beacon when it is energized.
The power connections for the heater are located on the same terminal block as
the main beacon power connections. Attach the black wire (120 VAC) to the
terminal marked
∅
C
, the white wire (neutral) to the terminal marked
N
, and the
green wire (ground) to the terminal marked
G
.
4.3.4 Beam Angle Adjustment
All beacons are shipped from the factory preset at an elevation angle of 5
degrees, per FAA requirements. To adjust to a different angle, refer to Section
5.2.2.
Summary of Contents for HBM 150/2
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