Regal 53 SC Owner's Manual page 388

F I R E E X T I N G U I S H I N G S Y S T E M -
AUTOMATIC
Inspect the pressure gauge before each outing. The il-
lustration shows the ready and discharge condition of
the actuator. Remove and weigh the unit (minus brackets)
every 6 months on an accurate scale ( Do not use any hand
held scales). If weight is below that shown on the unit
nameplate, it must be removed from service immediately.
If leakage is suspected, brush liquid soap on all points of
possible leaks, or submerge entire unit in clean fresh water
and watch carefully for 5 or 10 minutes.
Leaks will appear as tiny bubbles. If leakage is found return
to the factory immediately for repair or replacement.
Remember the two most important requirements to assure
full charge and reliability of your Fireboy system are:
1. Visual inspection of the gauge and the actuator to de-
termine if it has actuated.
2. Weighing to determine the true contents of the agent
in the system.
All models from 75 cubic feet are rechargeable. Recharg-
ing is possible only if the unit has leaked out verses losing
agent due to a fi re.
Should the indicator light fail to come ON when the igni-
tion key is ON, fi rst check the pressure gauge and actuator
to see if the unit has discharged. If not check the breaker.
Next, using a continuity tester, check the electrical pressure
switch on the system bottle itself. Pull the molded rubber
connector off by pulling straight away from the manifold,
and place the probes of the continuity tester directly on
the spade connectors. This pressure switch should show
a closed circuit.
Next, check the continuity of the entire wiring circuit. The
indicator lamp is an LED (light emitting diode) and cannot
be tested with a continuity tester.
A simple method to test LED'S is to remove the lamp and
touch the red wire to the + terminal and the black wire
to the - terminal of an ordinary 9 volt battery. Should the
indicator lamp be faulty, replacement lamps are available
from Fireboy.
Should the continuity of the pressure switch indicate an
open circuit, the system will have to be returned to the
factory for either replacement or repair.
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Chapter 8