Northern Lights OLP LP445, Operator'S Manual

Page: 27 / 36

OLP 05/00
INSTALLATION DATA
Model Number LP445D LP445T LP668D LP668T
Cooling (General)
Freshwater circulating pump flow 54 US gal @ 2500 rpm 54 US gal @ 2500 rpm 61 US gal @ 2400 rpm 61 US gal @ 2400 rpm
(204 ltr @ 2500 rpm) (204 ltr @ 2500 rpm) (229 ltr @ 2400 rpm) (229 ltr @ 2400 rpm0
Heat rejection to jacket water 2563 BTU-min 3630 BTU-min 3628 BTU-min 4972 BTU-min
Cooling (Heat Exchanger)
Raw water intake & discharge dia. 1.25 inch NPT 1.25 inch NPT 1.25 inch NPT 1.25 inch NPT
Raw water pump flow @ RPM 31 gpm @ 2500 rpm 31 gpm @ 2500 rpm 30 gpm @ 2400 rpm 30 gpm @ 2400 rpm
(117
l
pm @ 2500 rpm) (117
l
pm @ 2500 rpm) (113
l
pm @ 2400 rpm) (113
l
pm @ 2400 rpm)
Raw water pump max. suction head 39 in (1 m) 39 in (1 m) 39 in (1 m) 39 in (1 m)
Max. raw water temp. at inlet 85° F (30° C) 85° F (30° C) 85° F (30° C) 85° F (30° C)
Freshwater system capacity 5 US gal (18.9 ltr) 5 US gal (18.9 ltr) 6 US gal (22 ltr) 6 US gal (22 ltr)
Cooling (Keel Cooled)
Water hose inside diameter 2-3/8 in (60 mm) 2-3/8 in (60 mm) 2-3/8 in (60 mm) 2-3/8 in (60 mm)
Head diameter 1-1/2 in (38 mm) 1-1/2 in (38 mm) 1-1/2 in (38 mm) 1-1/2 in (38 mm)
Turbo tube length* 12 ft (4 m) 16 ft (5 m) 18 ft (5.5 m) 24 ft (7.3 m)
One inch plain round tube length* 28 ft (8.5 m) 44 ft (13.4 m) 42 ft (12.8 m) 57 ft (17.3 m)
Skin cooler
Aluminum*
12 sq ft (1.3 m
2
) 20 sq ft (1.8 m
2
) 19.5 sq ft (1.8 m
2
) 26 (2.4 m
2
)
Steel* 42.5 sq ft (4.0 m
2
) 65 sq ft (6.0 m
2
) 65 sq ft (6.0 m
2
) 87 sq ft (8.1 m
2
)
*Based on 70° F seawater and minimum boat speed of 8 knots at full speed. Return water on keel cooling 70° to 130° F.
Electrical
Minimum battery capacity - 12V 640 CCA 640 CCA 800 CCA 800 CCA
Battery cable size up to 10 ft run “0” “0” “0” “0”
Standard harness length 20 ft (6 m) 20 ft (6 m) 20 ft (6 m) 20 ft (6 m)
Air
Engine air consumption 166 cfm @ 2500 rpm 321 cfm @ 2500 rpm 220 cfm @ 2400 rpm 436 cfm@ 2400 rpm
(4.7 m
3
/min @ 2500 rpm) (9.1 m
3
/min @ 2500 rpm) (6.2 m
3
/min @ 2500 rpm) (12.3 m
3
/min @ 2200 rpm)
Minimum engine room vent area 48 sq in (.031 m
2
) 93 sq in (.060 m
2
) 64 sq in (.041 m
2
) 127 sq in (.081 m
2
)
Exhaust gas flow 487 cfm @ 2500 rpm 771 cfm @ 2500 rpm 643 cfm @ 2400 rpm 1067 cfm @ 2400 rpm
(13.8 m
3
/min @ 2500 rpm) (21.8 m
3
/min @ 2500 rpm) (18.2 m
3
/min @ 2400 rpm) (30.2 m
3
/min @ 2400 rpm)
Exhaust gas temperature at rpm 920° F @ 2500 rpm 738° F @ 2500 rpm 1000° F @ 2400 rpm 975° F @ 2400 rpm
(493° C @ 2500 rpm) (392° C @ 2500 rpm) (537° C @ 2400 rpm) (523° C @ 2400 rpm)
Maximum exhaust back pressure 48 in (1219 mm) H
2
0 30 in (750 mm) H
2
0 48 in (1219 mm) H
2
0 30 in (750 mm) H
2
0
Suggested dry exhaust I.D.
Dry
3 in (75 mm) 3 in (75 mm) 3 in (75 mm) 4 in (100 mm)
Wet 4 in (100 mm) 4 in (100 mm) 4 in (100 mm) 5 in (127 mm)
Fuel and Oil
Min. fuel suction and return line 3/8 in (9 mm) 3/8 in (9 mm) 3/8 in (9.5 mm) 3/8 in (9.5 mm)
Maximum fuel pump head 39 in (1 m) 39 in (1 m) 39 in (1 m) 39 in (1 m)
Crankcase oil capacity 14 US qts (13.2 ltr) 14 US qts (13.2 ltr) 18 US qts (17 ltr) 18 US qts (17 ltr)
Gear, PTO, Engine Angle
Engine rotation (facing flywheel) Counter-Clockwise Counter-Clockwise Counter-Clockwise Counter-Clockwise
Flywheel housing size SAE #4 SAE #4 SAE #2 SAE #2
Front PTO size (optional) SAE #5 SAE #5 SAE #5 SAE #5
Max. intermittent operating angle
Front down
0° 0° 0° 0°
Rear down 15° 15° 15° 15°
25
Specifications