Franklin Electric Inline 400 Manuel Du Propriétaire page 8

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Inline Pressure Boosting System
Inline 400 Typical Residential Installation:
The Inline Pressure Boosting System is designed to increase a system's usable pressure
whenever water is in use. Shown below is a diagram of the "required" and "recommended"
components of a typical pressure boosting application.
Water Supply
E
Pressure
Reducing Valve
(optional)
#
A
B
C
D
E
F
G
8
Check
Valve
Power
B
Pressure
Inline Pressure
Gauge
Boosting System
Flow
Ball
Union
Valve
Coupling
G
System Component
Pressure Tank
INLET Pressure Gauge
OUTLET Pressure Gauge
Outlet pressure reducing Valve
(PRV)
Inlet pressure reducing Valve
(PRV)
Outlet Pressure Relief Valve
Mounting Clearance
5 feet or less
A
2 Gallon
Tank
Pressure
Union
Reducing Valve
Coupling
(Optional)
D
*It is recommended (where applicable) to install the Inline 400 pump
in PARALLEL with the incoming water supply. This will allow for a
"service bypass" so that the typical household can still utilize the
incoming water (albeit at a reduced pressure) if maintenance work is
required. This type of installation requires both ball valves and the
check valve be installed as shown above.
Figure 1
A bladder-type pressure tank is required (recommend 2 gallon
size) for proper control of the Inline 400. See "Frequently Asked
Questions" section for more detail. It is important that a check
valve NOT be installed between the pump and the pressure tank.
An INLET pressure gauge is recommended for the purpose of
system set-up, operation, and troubleshooting.
An OUTLET pressure gauge is recommended for the purpose of
system set-up, operation, and troubleshooting.
This Inline 400 will boost a downstream pressure equal to
55 psi + incoming psi. If the discharge plumbing, fixtures,
and appliances are not rated for these higher pressures, it is
recommended to install a PRV after the pressure tank to limit the
max downstream pressure.
This Inline 400 will not function if the incoming water pressure is
greater than 40 psi. If the incoming supply is above 40 psi, a PRV
may be installed on the inlet.
It is recommended to install a pressure relief valve in the
discharge plumbing in order to protect the downstream
components from abnormal pressure spikes that may occur in
certain applications. Make certain the valves discharge is directed
towards a drain appropriately sized for the max flow of the pump
system or incoming water supply.
For ease of service, it is recommended to leave a clearance of
20 inches below the pump (for housing removal only). This can
be reduced if the unit is installed with the two plumbing unions
shown above. This would make it easy to remove the entire pump
from the system for servicing.
To House
C
Pressure
F
Gauge
Ball
Pressure
Valve
Relief
Valve
(Discharge into drain
rated for max pump
output at relief pressure)
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