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Bulletin 1-SK50BOSS1/SK75BOSS125 (32 PSI)

Effective DEC 2020

INSTALLATION, OPERATING AND SERVICE MANUAL

CITY BOSS™

RESIDENTIAL CITY WATER PRESSURE BOOSTER SYSTEM

CITY BOSS™ is a city water pressure booster system utilizing the MASCONTROL® pump 

controller and a single stage pressure booster pump. The pump controller monitors both 

flow and pressure, controlling the operation of the pump automatically. The system maintains 

constant boosted water pressure during operation. No pressure tank or switch required. No 

adjustment or maintenance is needed.

CAREFULLY READ THE LITERATURE PROVIDED BEFORE INSTALLATION!

Familiarize yourself with the specific details regarding installation and use.

Leave this manual with the system for future reference.

LANCASTER PUMP RECOMMENDS A QUALIFIED PROFESSIONAL TO INSTALL THIS SYSTEM.

INSPECT THE SYSTEM COMPONENTS:

Occasionally, products are damaged during shipment. If a component is damaged, contact the transportation company 

or your dealer. Save the product’s packing materials until the claim is settled. The system package includes pump, pump 

controller, and rubber grommets. For systems utilizing 1¼ MNPT pump controller, pipe fittings are included to connect 
pump to pump controller.

SAFETY INSTRUCTIONS

1. 

WARNING – HIGH PRESSURE. The pump can boost to high pressure. Verify the incoming water pressure 

BEFORE installing the booster system. Make sure the incoming water pressure plus the pressure boost 

developed by the pump is a SAFE psi for the application’s piping and fixtures. If required, a pressure 

reducing valve can be installed in line after the booster system to reduce water pressure to a safe level. A 

pressure relief valve piped to a suitable drain is recommended for overall system protection. Never install or 

service the pump or system without relieving the internal pressure.

2.  WARNING – HAZARDOUS VOLTAGE. Voltage can shock, burn or cause death. Install, ground and wire pump 

and controller according to local and national electrical code requirements that apply. The pump’s single 

phase motor is equipped with automatic resetting thermal protection. The motor may re-start unexpectedly 

causing the leads to energize or pump to turn. DISCONNECT ELECTRICAL POWER SUPPLY BEFORE 

INSTALLING OR SERVICING THE PUMP. Capacitor voltage may be hazardous. To discharge motor capacitor, 

hold insulated handle screwdriver (BY THE HANDLE) and short the capacitor terminals together. Do not touch 

metal screwdriver blade or capacitor terminals. 

3.  Install the water pressure booster system according to all plumbing code requirements.

4. 

Pump only water with this system. Pump can be severely damaged if run dry. The pump controller will 

detect a run-dry condition and shut off the pump. Do not pump water above 120° F, due to internal pump 

components temperature limitations. Do not allow pump, pump controller, piping or any other system 

component to freeze. Freezing may damage system, leading to injury or flood.

5. 

Pipe joint compound can cause cracking in plastics. Use only Teflon tape when sealing threaded plastic pipe 

or connecting pipe to plastic components such as the pump controller.

Summary of Contents for CITY BOSS

Page 1: ...mp is a SAFE psi for the application s piping and fixtures If required a pressure reducing valve can be installed in line after the booster system to reduce water pressure to a safe level A pressure relief valve piped to a suitable drain is recommended for overall system protection Never install or service the pump or system without relieving the internal pressure 2 WARNING HAZARDOUS VOLTAGE Volta...

Page 2: ...ngs on the inlet side of pump and discharge side of pump controller for ease of disconnecting booster system for service or to protect from freezing ELECTRICAL CONNECTIONS Wiring to this booster system must be installed and maintained in accordance with both the National Electrical Code and state local codes Make sure motor voltage rating matches available power supply See the motor nameplate Dual...

Page 3: ...tecting 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 p...

Page 4: ...unting MASCONTROL pump controller see Figure 1 The MASCONTROL may be mounted directly on the booster pump s outlet MASCONTROL must be mounted on a vertical column with the electronic box level and the flow direction arrows pointing upward Use only Teflon tape for threaded connections Do not install any tap between the pump and the MASCONTROL Detailed system installation diagram see Figure 2 Relief...

Page 5: ... wiring diagrams Replace MASCONTROL s electronic box cover using the six screws upon completion of wiring the system If cover is not securely fastened RESTART button will not operate Figure 3A 115VAC Single Phase Wiring Diagram Figure 3B 230VAC Single Phase Wiring Diagram 8 Position Terminal Block MASCONTROL Model 8 Position Terminal Block MASCONTROL Model Figure 4 115VAC or 230VAC Single Phase Wi...

Page 6: ...lled and ready to operate automatically Using the RESTART Button If water does not enter the pump and MASCONTROL the red FAILURE light will illuminate and the MASCONTROL will shut off the pump within 20 30 seconds This is the run dry protection feature preventing damage to the pumps internal components See Figure 9 After the water supply problem is corrected is a check valve installed backwards di...

Page 7: ...astened to the proper terminals Also recheck voltage for correct application 115V or 230V Press the restart button If all lights remain on and the pump still does not operate the electronic box has failed and should be replaced POWER ON PUMP ON and FAILURE lights are all on Tap closed pump on Fig 14 The pump is operating and all taps are closed the electronic box has failed and must be replaced PO...

Page 8: ...PAGE 8 A DIVISION OF C B TOOL 1340 Manheim Pike Lancaster PA 17601 3196 Tel 717 397 3521 Fax 717 392 0266 www lancasterpump com ...

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