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HOW IT WORKS
UNDERSTAND THE SYSTEMS MAJOR COMPONENTS AND THEIR FUNCTIONS…
BOOSTER PUMP-
The pump increases water pressure using an impeller located inside the pump body. The impeller
rotates with the motor shaft, drawing water into its center opening. Water exiting the impeller goes to discharge, entering
the pump controller. This pump is NOT intended to lift water from a well. Well pumps require a nozzle/venturi device,
known as an injector or jet. The booster pump included in the CITY BOSS system is not fitted with an injector. The pump
is only meant to boost incoming city water pressure.
MASCONTROL-
The MASCONTROL pump controller operates the pump within the pressure range of city supply
pressure or 32 psi (whichever is greater) to the maximum operating pressure of the “CITY BOSS” system (city supply
pressure PLUS pump pressure boost). The MASCONTROL pump controller allows the booster pump to provide constant
boosted water pressure during operation to the service piping, unlike the 20 psi differential “cyclic” pressure provided
by a conventional pressure tank and switch system. The MASCONTROL pump controller is equipped with an internal
check valve, spring-loaded diaphragm pressure switch and a stainless steel flow switch. After the “CITY BOSS” pressure
booster system is installed and the start-up procedure is completed, the service piping will be pressurized to the maximum
operating pressure.
When a service tap is opened, service pressure will drop very quickly...
MASCONTROL has a factory calibrated non-adjustable 32 psi re-start pressure as indicated on the rear of the device.
If city supply pressure is less than 32 psi:
MASCONTROL’s internal pressure switch will start the booster pump when
service pressure drops to 32 psi.
If city supply pressure is greater than 32 psi:
MASCONTROL’s internal flow switch will start the booster pump when
service pressure drops to city supply pressure.
MASCONTROL will keep the booster pump running to provide constant boosted water pressure until all service taps are
closed. After the service taps are closed, MASCONTROL will continue running the booster pump for approximately 8
seconds before shutting off, to avoid “quick cycling”. The “CITY BOSS” booster system is on “standby” until water is again
demanded at the service tap. If all service taps are closed and the booster pump does not shut off after approximately 8
seconds, the MASCONTROL’s internal flow switch may be detecting leakage in the service piping greater than 0.21 GPM
(the value of the minimum flow below which the flow switch stops the booster pump).
MASCONTROL will protect the booster pump from damage if the city supply piping to the booster pump inlet is dry or
blocked. MASCONTROL will detect irregular city water supply conditions and shut off the booster pump. The red
Failure
light will be on. After the problem is corrected, the user needs only to press and hold the red
Restart
button for 3 to 5
seconds (with a service tap opened) to restore normal operation.
If power is lost, MASCONTROL will reset and restart automatically when power is restored.
MASCONTROL is not adjustable and does not require maintenance.
Note:
Maximum operating pressure (city supply pressure PLUS pump pressure boost) at close-off (service taps closed)
cannot be less than 55 psi.
Note:
The column of water between MASCONTROL and the highest service tap must NOT EXCEED 70 feet. If the
column of water above MASCONTROL exceeds 70 feet, reposition MASCONTROL higher so the water column is less
than 70 feet.
MOTOR-
The booster pump’s motor is a single phase, capacitor start, open drip proof type with a 14/3 SJTW cord set
attached for connection to the pump controller. The motor bearings are permanently lubricated, therefore no maintenance
is required. The motor is a dual voltage design utilizing a “voltage selector switch” in its rear housing. Use this switch to
match the motor voltage setting with the power supply line voltage.
OPTIONAL PRESSURE REDUCING VALVE (PRV)-
Not supplied with
“CITY BOSS”. Install PRV in-line after the
pressure booster system if city supply pressure PLUS pump pressure boost exceeds SAFE service pressure. Follow
PRV manufacturer’s instructions regarding installation and adjustment. If PRV adjustment is necessary, Lancaster Pump
suggests this is done accurately with the use of a pressure gauge while the booster pump is running with only the closest
service tap open, allowing only 2 to 3 GPM flow. See page 4, Figure 2.
OPTIONAL PRESSURE TANK-
Not supplied with
“CITY BOSS”. Install pressure tank in-line after the pressure booster
system if reducing the amount of pump start-ups is desired. Use of a small pressure tank (a.k.a. expansion tank) can
SUBSTANTIALLY DELAY the pump start-up. For suggested tank size and air pre-charge, see page 4, Figure 2.
Note:
Many local plumbing codes mandate backflow prevention. The MASCONTROL pump controller has a built-in check
valve also. Thermal expansion can cause pressure buildup in the closed hot water system, causing relief valves to open.
Follow all local plumbing codes regarding use of an expansion tank.
