Duplex VARIOspeed 3R Manual Del Usario página 10

Pressure Tank/Pressure Relief Valve/Low Pressure
To maintain constant pressure and prevent frequent startup, a small-capacity pressure tank is needed in the system
(refer to the minimum capacity of pressure tank table below). The VARIOspeed
pressure tank of a larger capacity than listed on the table below.
Minimum Capacity of Pressure Tank
Flow Rate (GPM)
Less than 12.0
More than 12.0
More than 50.0
Pre-Charge Pressure
1. Initial charge pressure should be set at 70% of the system pressure (Set pressure).
2. To maintain the optimum pressure control, check the air pressure in the tank regularly.
Set Pressure (PSI)
50 (default)
55
60
65
A Pressure Relief Valve Must be Installed.
A pressure relief valve MUST be installed as close as possible to the pump discharge and plumbed to a drain able to
handle the full flow of the pump in the event of a malfunction.
Failure to use a pressure relief valve could result in burst pipes and flooding if a system failure should occur.
10
Tank Size
(Total Capacity)
4 Gallons
8 Gallons
14 Gallons
Initial Charging
Pressure (PSI)
35
39
42
46
WARNING!
® 3R Duplex control panel may use a
VARIOspeed 3R Duplex User Manual
®