Generac Power Systems Protector Series Installation Manuallines page 29

Total Tank Available Tank
Capacity
gal (L)
See Note 1 See Note 2
250 (946.4) 150 (567.8)
325 (1,230.3) 195 (768.2)
500 (1,892.7) 300 (1,135.6)
850 (3,217.6) 510 (1,930.6)
1,000 (3,785.4) 600 (2,271.2)
Note 1: Minimum tank size should be sized large enough to provide correct fuel capacity to generator at full load. Contact a LP
gas provider for correct tank sizing.
Note 2: Available tank capacity is approximately 60% of total fill capacity. This is based on a maximum fill level of 80% and a min-
imum operating level of 20% (80% - 20% = 60%).
Note 3: Vaporization capacity shown is based on a tank level of 20%. This represents the smallest allowable wetted surface area
of the liquid in the tank. As liquid propane level goes up, wetted surface area and vaporization rate increases.
Propane conversion figures:
3
• 36.38 ft = 90,500 BTU = 1 gal
3
• 0.001 m = 21 MJ = 1 L
Installation Guidelines For Spark-Ignited Stationary Generators
Table 4-3. Vaporization Rates
Minimum
Operating
Capacity
Temperature
gal (L)
°F (°C)
40 (4.4)
20 (-6.6)
0 (-17.8)
40 (4.4)
20 (-6.6)
0 (-17.8)
40 (4.4)
20 (-6.6)
0 (-17.8)
40 (4.4)
20 (-6.6)
0 (-17.8)
40 (4.4)
20 (-6.6)
0 (-17.8)
Figure 4-3. Typical Propane Tank Dimensions
• 1 lb = 21,500 BTU = 8.56 ft
• 1 kg = 10.3 MJ = 0.11 m
Tank Vaporization
Capacity
BTU/hr (MJ/hr)
See Note 3
507,600 (535.5)
338,400 (357)
169,200 (178.5)
642,600 (683.3)
428,400 (452)
214,200 (226)
792,540 (836.2)
528,360 (557.4)
264,180 (278.7)
1,217,700 (1,284.7)
811,800 (856.5)
405,900 (428.2)
1,416,960 (1,495)
944,640 (996.6)
472,620 (498.6)
Length
Propane
3
3
Gaseous Fuel Systems
Length Diameter
in (cm) in (cm)
94 (238.8) 30 (76.2)
119 (302.3) 30 (76.2)
119 (302.3) 37 (93.9)
165 (419.1) 41 (104.1)
192 (487.7) 41 (104.1)
Height
Diameter
3
• 2500 BTU = 1 ft
3
• 1.13 MJ = 1 m
25