Page 10 | Pentair Water Commercial Pool and Spa |
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Figure 10. Heater Piping Arrangement.
2.8Temperature Sensor Placement and Installation
A temperature sensor with 15 feet (5m) of cable and an immersion well assembly are supplied with the boiler. These must be installed in the field. Refer to Figures 10 through 11.
1.The immersion well body is provided with a 1/2" NPT. Mount the immersion well on the underside of the filter circulation piping, just upstream of the boiler inlet tee as close to the boiler as possible (see Figure 10). DO NOT
INSTALL in boiler loop piping or downstream of the boiler inlet tee.
2.Thread the spring and retainer onto the sensor cable and secure sensor into the immersion well.
3.Route cable to heater control panel in a location where it will not be subject to damage. Secure with nylon cable ties.
2.9 Automatic Chlorinators
A concentration of chlorine in the heater can be very destructive, therefore the following rules about the installation and operation of such devices must be followed:
1.The chlorinator should be installed so it introduces the gas or solution downstream from the boiler.
2.The chlorinator should be wired so it cannot operate unless the filter pump is running.
3.The chlorinator should be provided with an anti- siphon device so that the draining of the piping after the pump shuts off will not siphon chlorine solution into the boiler.
4.When the operation of a chlorinator is such that it must be installed in the pump suction, or some other place where the chlorine solution flows through the heater, corrosion of the heater can occur. Excessive concentrations of chlorine caused by improper adjustment or failure of the chlorination equipment cause this corrosion. The resulting damage to the heat exchanger is not covered by heater warranty.
