BOTTOM PANEL OF THE GALAXY 2000 UNIT
GALAXY 2000 UNIT PRINTED CIRCUIT
BOARD
MODE
FUNCTION LO FLOW /ORP
FLOW
J2
1
In- line operation Not connected
Main flow switch
O p e n
2
2-speed pump Low flow switch
Main flow switch
O p e n
(Generates reduced purif ier
when pump is at low speed)
3
Partial convection Shorting plug
Main flow switch
O p e n
(Generates reduced purifier by
convection when pump is not running)
4
Full convection Not connected
Shorting plug
O p e n
(Continuously produces full
purifier output by convection)
5
ORP Controller Interface ORP relay contacts(N.O.) Main flow switch
Linked
1.
2 SPEED PUMP SYSTEMS ON SPAS AND SMALLER POOLS
- Add Part # 19007-5 Low Speed Flow Switch Assembly
Most 2-speed circulation systems for pools and spas operate at high speed when the project is being used,
and run at low speed when not in use. The demand for purifier may be many times greater when the project is
being used than when it is not. To avoid overdose, add a Low Flow Switch Assembly (Part # 19007 -5).
When the CELL FLOW switch closes, the GALAXY 2000 unit delivers purifier at the rate set by the output
control dial. If the CELL FLOW SWITCH opens, but the LO FLOW remains closed, purifier is generated at 12% of
the output if the control dial is set at maximum.
The cell flow switch operates at 15 gpm (56 LPM). If a secondary flow switch, operating at 5 gpm (19
LPM.), is connected to the LOW FLOW / ORP (BLUE) input, the GALAXY 2000 unit will re duce its purifier
output when the pump runs at low speed, a situation when the pool or spa is not normally in use. This mode
of operation prevents overdosing, yet provides a purifier boost when the pool or spa is in use or the filter
pump is operating in h igh speed mode.
2. CONVECTION APPLICATIONS - See Configurations 1 & 2 on pages 17 & 18.
Many above -ground pools benefit from continuous purification at a reduced rate when the pump is not run-
ning. This is done by permanently shorting the LO FLOW connector contacts with the white shorting plug
connector supplied in the installation kit, yet continuing to use a flow switch for the MAIN FLOW input. This
generates purifier at the rate set by the output control while the pump is running. When the pump is off, t h e
GALAXY 2000 unit continuously generates purifier in convection mode at 12% of the
output if the control dial is set at maximum.
In above -ground pool installations where the pump and filter are below the water level, the GALAXY 2000
unit may be operated in a convection mode. This requires the following:
1. The cell MUST be located immediately adjacent to the discharge outlet in a vertical position.
2.Unobstructed flow is required through the cell, whether the pump is operating or not. This can be
accomplished by the method shown on page 18, using a check valve bypass run between the suction port
and discharge outlet.
3-Please do not install any shutoff valves on the bypass run between the suction port and discharge outlet
or after the cell. Obstructing t he flow at the bypass run or after the cell will cause damage.
SUMMARY OF GALAXY 2000 UNIT
OPERATING MODES
LOW FLOW/ORP (Blue)
CELL
MAIN FLOW (White)
17
