Section 3c
OPERATION (cont’d)
10
Inner Metal
Cover
Section 4a
–SERVICE and MAINTENANCE
Additional notes:
a)
For proper sanitation, spa must be completely drained periodically. The number of days between COMPLETE SPA DRAINAGE is equal
to the volume of spa water in liters, divided by 10 times the maximum number of daily spa users.
b)
Maximum spa usage temperature is 40°C (104°F). Duration in spa water at 40°C should not exceed 15 minutes.
c)
Heavy use of the spa (excessive contamination) may require longer recovery times (A return to a minimum of 3 ppm ch lorine/bromine).
Recovery time may be reduced by adding a shock compound to the water.
d)
Hot weather, heavy pool usage, and rain may require a higher output to maintain proper sanitizer residual.
CONTROL BOX
There are little serviceable parts on the Lectranator Soft Touch Model ST 48 Control Box except the fuses. For any other problems with the Control Box, please contact the
Factory or Authorized Dealer/Service Center.
To remove the Control Box Cover and access the fuses, follow these steps.
DANGER: TURN OFF THE POWER FROM THE CIRCUIT BREAKER BEFORE SERVICING THIS UNIT.
Control Circuit Board
Wire Harness Connection
Inside Top Cover
Loosen (4) knobs
Lift off cover and disconnect
Remove (3) screws and
Access is gained to
(you do not need to)
wire harness (Control Circuit
lift off metal cover.
electrical connections,
(remove these).
board removes with cover).
fuses, and pump/aux
relay.
TRI-SENSOR ASSEMBLY
The Tri-sensor assembly tests for Flow, Salt and Water temperatures. A minimum flow rate of 94.5 L/min (25 US Gallons/min) is required to activate
the flow switch. As the water flow closes the paddle,a magnet activates a micro switch to verify proper flow. The Salt sensor protects against low salt
levels and the temperature sensor protects against cold water temperatures. Both of which can contribute to accelerated cell failure.
Note: The use of high strength magnet devices in the close proximity
of the tri-sensor can cause the flow switch to read incorrectly.
Remove the Tri-Sensor as follows (with pump off):
Remove both screws from the sides of the Tee Assembly.
With the aid of large Channel-lok® (or similar) pliers, firmly
grip the Tri -Sensor assembly and move back and forth
while removing the Tri-Sensor from the tee.
Inspect the thin metalic paddle for erosion and straightness.
Take care not to twist or tweak this paddle, which can cause
inaccurate flow readings.
Inspect the salt sensor blades for scale and debris and clean
if necessary. See page 13 for cleaning instructions. Follow
the directions for Manual Cell Cleaning.
Check the tri-sensor assembly for any damage to the plastic
housing and replace if needed.
Lectranator Soft Touch
Model ST 48
Front of Unit
Top Cover
F3
F2
F1
directional
Arrow
screw(s)
one on each side
Fuse Location and Ratings
F1
F2
Main AC Power Fuse
Control Panel Circuit Board Fuse
6 Amps 250 VAC
3 Amps 250 VAC
F3
Cell Fuse
20 Amps 250 VAC
Summary of Contents for ST 48
Page 18: ......
