INSTALLATION SPECIFICATIONS
18 Copyright © 2009 Mastervolt / October 2009 / WHISPER 3.5 / EN
12 Check when the generating set is running, the delay
of 3 – 10 seconds in the power source selector
transfer.
13 Check voltage and frequency under ‘no load’
conditions.
14 Check voltage and frequency under ‘full load’
conditions.
15 Check if the battery charger of the generating set is
working (max. 14.5 Volt).
16 Close the sound shield and check the noise level.
17 Stop the generating set and check the engine again
for leakages of oil, fuel or water.
Installation checklist available on our website:
www.mastervolt.com.
Commissioning form available on our website:
www.mastervolt.com.
2.3 INSTALLATION SPECIFICATIONS WHISPER 3.5
TECHNICAL DATA
Article no 51200500
Dimensions WxDxH 505 x 400 x 500 mm
Weight 104 kg including sound shield
Max. operation angle 25°
Remote control: MasterView Easy (MasterBus)
Battery capacity min. 12V, 55 Ah
Fuel consumption 0,7-1,5 l/hr, load dependent
Lift fuel pump electric driven 12 V DC, max. lift 1 m
Cooling indirect cooling
Cooling pump raw water Mastervolt self priming impeller pump, PTO driven, type K
Minimum water supply 8-10 l/min
Crank case lube oil capacity 1.3 litre + 0.2 oil cooler, total 1.5 litre
Alternator synchronous brushless, maintenance free water cooled
Voltage regulation capacitor
Output power 230V - 50 Hz - 3kWatt @ cos phi = 1
Battery charger additional 12V winding including regulator (4 Amps)
2.4 SPECIFICATION OF THE ACCESSORIES
Water scoop min. 1/2” (recommended 3/4”)
Inlet valve min. 1/2" in 12.5 mm out (recommended 3/4” in 12.5 mm out)
Water strainer 12.5 mm in, 12.5 mm out
Air vent 12.5 mm
Inlet suction hose 12.5 mm
Fuel filter/water separator 30 micron
Fuel inlet and return 8 mm
Exhaust hose in/out Ø 40 mm (1
5
/
8
”)
Water lock Ø 40 mm (1
5
/
8
”)
Water/gas separator Ø 40 mm (1
5
/
8
”)
Anti shock mounts art. nr. 50230552
Foundation plate min. 44 kg (97 Lbs)
Battery charger (optional) IVO SMART 12/10; 12V / 10 Amps
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