Kohler 3.5CFZ, 4CZ, 5CFZ, 6.5CZ Appliance Loads, Kilowatt Derating, Motor, Running, Requirements

Capabilities will vary according to Kilowatt Derating following.

Motor		Starting	Running
Requirements		(In-Rush)
(HP)		Watts	Watts
1/4		750	330
1/3		1000	400
1/2		1500	600
3/4		2000	750
1		3300	1100
2		4000	2000
3		5000	3000
	Figure 6-1. Motor Requirements
			“Power to
		Will Operate Air	Spare” for
			Lighting
Model	Wattage	Conditioner of	Appliances,
		Size Indicated	Tools
4CZ	4000	One 13,500 Btu	2100
6.5 CZ	6500	One 13,500 Btu	4600
		Two 13,500 Btu	2700

Figure 6-2. Air Conditioner Requirements (50 Hz units will have slightly lower “power to spare” figures than those indicated)

Appliance Loads

Marine generator sets are often used to furnish AC for appliances such as TV, stereo, electric water heaters, etc. With the exception of the resistance-type loads such as the water heater, requirements for appliances are usually low. Such loads must not, however, be overlooked when figuring total requirements. Reserve capacity should be available for anticipated appliance loads to avoid overloading of a set. The average power requirements of some common electrical appliances are given in Figure 6-3.

Kilowatt Derating

Units are rated as listed below at 1.0 power factor. Derate the listed rating by approximately 3.5% per 1000 ft. (300 m) when the unit is operated at altitudes of 500 ft. (150 m) or more above sea level.

3.5CFZ, 50 Hz: 3.5 kW at 77_F (25_C) and 3.5 kW at 122_F (50_C).

4CZ, 60 Hz: 4 kW at 77_F (25_C) and 3.5 kW at 122_F (50_C).

5CFZ, 50 Hz: 5 kW at 77_F (25_C) and 4.85 kW at 122_F (50_C).

6.5CZ, 60 Hz: 6.5 kW at 77_F (25_C) and 6 kW at 122_F (50_C).

	Motor
Electrical	Starting	Running
Appliance	Watts	Watts
Automatic Pilot	--	150--250
Blanket, Electric	--	50--250
Blender	800	600
Broiler	--	1350
Depthometer	--	25--1000
Drill, 3/8”	600	350
Dryer, Hair	--	850--1200
Fan, Air	50--200	25--100
Circulating
Food, Mixer	400	235
Heater, Space	--	750--1500
Heater, Water	--	1500
Iron	--	900--1200
Light Bulbs	--	(as indicated)
Pan, Frying	--	1200
Percolator,	--	650
Coffee
Radar	--	750--1500
Radio	--	50--100
Radiophone	--	100--200
Range, Electric	--	1000--1500
(per element)
Soldering Gun	--	250
Television	--	300--750
Toaster	--	750--1200
Water System	500--1500	300--1250

Figure 6-3. Appliance Average Wattage Ratings

(60 Hz)

6-2 Installation TP-5695 12/93