Lectranator Systems 27316, Installation & Operation Manual

BOTTOM PANEL OF THE CRISTAL MAGIC UNIT  

CRISTAL MAGIC  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 purifier 

when pump is at lo w   s p e e d )  

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 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. 

When the CELL FLOW switch closes, the CRISTAL MAGIC 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 CRISTAL MAGIC unit will reduce its purifier 
output when the pump runs at low sp eed, 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 high speed mode. 

2. CONVECTION APPLICATIONS - See Conf igurations 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, the 
CRISTAL MAGIC unit continuously generates purifie r 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 CRISTAL 

MAGIC unit may be operated in a convection mode. This requires the followin g : 

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 the flow at the bypass run or after the cell will  cause damage. 

SUMMARY OF CRISTAL MAGIC   UNIT 
OPERATING MODES  

LOW FLOW/ORP (Blue) 

CELL 

 MAIN FLOW (White) 

16