Installation manual

3. Step-By-Step Outline of Installation 4-2010
TABLE 21. REQUIRED PROPANE TANK SIZE IN GALLONS (LITERS) FOR INDICATED
TEMPERATURES WHEN KEPT AT LEAST HALF FULL
Withdrawal Lowest Average Winter Temperature
Rate
32 °F (0 °C) 20 °F (-7 °C) 10 °F (-12 0 °F (-18 °C) -10 °F (-23 -20 °F (-29 -30°F (-34
°C) °C) °C) °C)
100 cfg 250 250 250 400 500 1000 1500
(250,000
(945) (945) (945) (1515) (1890) (3785) (5675)
BUT/hr)
[2.8 m
3
/hr (264
MJ/hr)]
150 cfg 300 400 500 500 1000 1500 2500
(375,000
(1135) (1515) (1890) (1890) (3785) (5675) (9640)
BUT/hr)
[4.2
m
3
/hr(395.6
MJ/hr)]
200 cfg 400 500 750 1000 1200 2000 3500
(500,000
(1515) (1890) (2840) (3785) (4540) (7570) (13250)
BUT/hr)
[5.7 m
3
/hr
(527.5 MJ/hr)]
300 cfg 750 1000 1500 2000 2500 4000 5000
(750,000
(2840) (3785) (5675) (7570) (9640) (15140) (18925)
BUT/hr)
[8.5 m
3
/hr
(791.2 MJ/hr)]
3.7.4.3 Propane Vapor Fuel Supply Line Size and Pressure
Fuel line size depends on the amount of fuel needed to run the generator set at full load at the
distance the fuel must be moved.
· See the Generator Set Specifications Table for fuel system specifications, such as the
amount of propane vapor at certain loads.
The following figure shows a typical Propane vapor installation and the table below lists fuel
capacity for given distances and pipe size.
Size the fuel line so that the Propane vapor pressure drops no more than 2 inches WC from no
load to full load.
30 A029V088 (Issue 2)