Instructions / Assembly

1 0918-1
Follow the installation steps in the provided Installation Manual from pages 1-11. When you have
completed Step III (Tank Input & Output) on page 11, please use the following installation
steps:
The booster pump requires electricity to run. The booster pump includes a pre-installed power
transformer and a pump pressure switch.
I. Pump Electical Cable: Remove twist tie around pump electrical cable and unravel cable.
II. Connect Pump Electrical Cable to Power Outlet: Plug pump electrical cable into nearest
GFCI power outlet. Use twist tie to secure any excess electrical cable length between
pump and power outlet.
III. Proceed to Page 12 of the Installation Manual to complete installation.
Please note: While the pump is running, you may hear a low buzzing noise from the pump motor.
Booster Pump System Addendum
Note
OROS-50-BST has not been evaluated to NSF/ANSI standards 42 and 58. The OROS-50-BST is the combination of OROS-50,
which is a NSF certied system (NSF/ANSI 42 for CTO and 58 for TDS), with OROS-BST, a booster pump that has not been
evaluated to NSF/ANSI standards 42 and 58.
A
D
B
C
A. IN: Water from Stage 3
B. OUT: Water from Pump
C. Pump Pressure Switch Connection
D. Pump Electrical Cord
Booster Pump Connections
Fig. 1
Stage 1Stage 2
RO Membrane
To Tank
Feed Water from
Cold Water Supply
To Faucet
OUTIN
Stage 5
Check Valve
Flow Restrictor
Automatic Shut-O Valve
To Drain
Booster Pump
Pump Pressure
Switch
Stage 3
Pump
Volts: 24VDC
Input Water Pressure: 10-60PSI
Max Output Pressure: 120-140PSI
NSF 58 Certied for Material Requirements and
Structural Integrity Requirements
Transformer
Input: 100-240V~50/60Hz 1.5A
Output: 24V 1.5A
UL Listed
Booster Pump Technical Information