Sea Recovery Ultra Whisper Rev. A
C. ELECTRICAL REQUIREMENTS & INFORMATION:
1. Amperage Notes:
Alternating Current powered Systems:
During start up, the current of the Feed Water Pump [6] Alternating
Current Electric Motor surges to “Locked Rotor” or “Starting Amps” amperage for a fraction of a second
after which the Electric Motor begins to rotate. After the Electric Motor achieves full RPM rotation the
current drops to normal running load. This process will take less than 1/2 second.
Therefore, the maximum surge current that the power source must be able to deliver equals the Feed
Water Pump Electric Motor starting amperage listed in the Specification Section of this manual. If the AC
Power Source (AC Generator or Dock Power) is insufficient the Ultra Whisper Electric Motor will not gain
the full RPM speed needed for it to switch to running amperage mode, will consume “starting amps”
amperage continually, and will either trip the power source circuit breaker or overheat and short out.
Similar results will occur if the Frequency (Hz or Cycles) drop below the minimum requirement which will
occur from a weak AC Generator that slows down when a load is applied to it. This is an installation
problem (insufficient power supply), it is not an Ultra Whisper problem.
Direct Current powered Systems:
During start up, the current of the Feed Water Pump [6] Direct Current
Electric Motor draws high amperage for a fraction of a second after which the Electric Motor begins to
rotate. After the Electric Motor achieves full RPM rotation the current drops to normal running load.
This process will take less than 1/2 second.
Therefore, the battery bank power source must be fully charged and of sufficient amperage storage
capacity to provide and maintain the full voltage (12 VDC or 24 VDC as appropriate) at the instant of
starting the Feed Water Pump Electric Motor. If the battery bank power is insufficient the Ultra Whisper
electronic circuit may “drop out” due to power loss before the Electric Motor even begins to rotate. This is
an installation problem (insufficient power supply), it is not an Ultra Whisper problem. Low DC voltage to
the Feed Pump electric motor will also be caused by insufficient diameter power cables connected from the
battery bank, through the boat’s circuit breaker, and on to the Ultra Whisper controller.
2. POWER SOURCE REQUIREMENTS:
Check line voltage and frequency to ensure that it agrees with the system
nameplate. Grounding and circuit protection should be done in accordance with National Electrical Code. See
connection diagram on nameplate of motor or refer to the diagrams within this manual.
Voltage
HZ (AC)
Min. HZ
Max. HZ
Min. Voltage
Max. Voltage
DC Systems
12 VDC
N/A
N/A
N/A
11 VDC
15 VDC
24 VDC
N/A
N/A
N/A
22 VDC
30 VDC
AC Systems
120 VAC
60 HZ
58 Hz
62 Hz
108 VAC
132 VAC
230 VAC
60 HZ
58 Hz
62 Hz
207 VAC
253 VAC
100 VAC
50 HZ
48 Hz
52 Hz
90 VAC
110 VAC
220 VAC
50 HZ
48 Hz
52 Hz
198 VAC
242 VAC
section 8 page 5 of 12
Summary of Contents for SRC Ultra Whisper Compact 200
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