Sensor Installation; Start-Up Operation - Polaris Watermatic C-660 User Manual

If this does not provide sufficient and consistent flow through the
bypass assembly, other configurations can be used, including:
a) from before the filter to after the heater, an inline filter should
be used to minimize the debris coming in contact with the sen-
sor; b) from after the filter to before the pump, excellent flow is
ensured, but the flow must be adjusted so the sensors are not
subjected to a suction environment. Solar systems and other
factors can alter pressure differentials in a system, adversely
impacting flow through the assembly.
D. Sensor Installation
Carefully unpack the ORP and pH sensors and remove the plas-
tic protective caps from the sensor tips. Store the protective
caps inside the controller enclosure for possible future use (win-
terizing or reshipping).
Attach the pH sensor BNC connector and
the ORP sensor BNC connector to the
controller as shown on page 14. Slide the
pH and ORP sensors inside the compres-
sion fittings on the bypass assembly so
that the sensor tips are below the water
line in the pipe. Tighten the nuts of the fit-
tings until they are finger tight. DO NOT
USE A WRENCH.
Make sure the controller power switch is
off. Plug the power cords from the pH
and ORP feeders into the controller. Plug
the power cord from the controller into the
GFCI receptacle. It is recommended
that the controller be used with a flow
or pressure switch to ensure that feed-
ing does not occur when the main fil-
ter/circulation pump is not running.
E. Start-up Operation
Do not add chemicals to the feeders until all of the following
start-up operations have been completed.
1. Turn the filter pump on and check for water flow through the
sensor bypass assembly. Water should pass over the ORP
and pH sensors for at least five minutes to allow for accurate
ORP and pH readings from the pool or spa.
Controller
Coil Extra
Sensor Cable
Externally
Sensor
Compression
Fitting
PVC Tee
Sensor Tip
10