Franklin 5870206300 ユーザーズマニュアル
16
Pressure Tank
The SubDrive needs only a small pressure tank to maintain constant
pressure (see table below for recommended tank size). For pumps rated 12
gpm or more, a slightly larger tank is recommended for optimum pressure
regulation. The SubDrive can also use an existing tank with a much larger
capacity.
pressure (see table below for recommended tank size). For pumps rated 12
gpm or more, a slightly larger tank is recommended for optimum pressure
regulation. The SubDrive can also use an existing tank with a much larger
capacity.
Table 3: Minimum Pressure Tank Size (Total Capacity)
Pump Flow Rating
Controller Model
Minimum Tank Size
Less than 12 gpm
SubDrive300
8 gallon
12 gpm and higher
SubDrive300
20 gallon
NOTE: Check tank precharge regularly to maintain optimum
pressure regulation.
pressure regulation.
The pressure tank pre-charge setting should be 70% of the system pressure
sensor setting as indicated in the following table.
sensor setting as indicated in the following table.
System Pressure
(at Pressure Sensor)
Pressure Tank
Setting (±2 psi)
25
18
30
21
35
25
40
28
45
32
50
35
Factory Setting
55
39
60
42
65
46
70
49
75
53
80
56
Table 4: Pressure Tank Precharge (PSI)