Page 12 | Pentair Water Commercial Pool and Spa |
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On a newly constructed pool, be sure to run the filter pump long enough for a complete
1.Before placing the heater in operation, be certain that the heater is filled with water and that all air is purged from the system. Open all the valves in the secondary piping.
2.With the filter pump running, run the heater pump in manual “CONSTANT PUMP” for minimum of 10 minutes and listen for the flow switch to make as the pump is started. Loosen the pipe plug on the top of the pump scroll casting to bleed off any air. NOTE: If the system will be operated in a manner that causes air to be drawn into the heater and the secondary piping, an automatic float type air vent should be permanently installed on top of the pump scroll.
3.To check the heater firing, proceed as follows:
a.Turn off the power switch.
b.Turn off all manual gas valves and wait five minutes (Figure 13).
c.Set operating control to the lowest setting.
d.After placing the manual pilot gas valve in the open position and resetting all safety devices (high limit, low water cutoff, etc.), the pilot(s) can be lit following the procedure on the heater rating plate.
e.For standing pilot system, press on pilot relay knob (see Figure 15), light pilot and keep relay knob depressed for one minute then release. Once the pilot is lit, turn power switch to “AUTO PUMP.”
f.Wait 5 minutes and turn up operating control until heater fires (for intermittent ignition system, the pilot will be ignited automatically). The main burners should ignite smoothly. Turn the operating control back to the lowest setting.
NOTE: DO NOT OPERATE HEATER UNTIL THE FOLLOWING SAFETY CHECKS HAVE BEEN PERFORMED.
3.3 Safety Shutoff Component Checkout
1.Once the pilot(s) is lit and has been established for five minutes, the flame failure response time should be checked as follows:
Systems 4 and 9 - (intermittent ignition). With this system pilots are automatically lit when the operating controls call for heat. If the pilot flame fails for any reason, the main valve is shut off within one second
and the pilot spark ignition is initiated until the pilot flame has been reestablished. This sequence should be checked by turning off the manual pilot gas valve (see Figure 14), and, at the same time, monitoring the audible sparking at the pilot burner and signal interruption to the main valve.
Caution
Propane gas is heavier than air and sinks to the ground. Exercise extreme care in lighting the heater when so equipped.
System 16 - (electronically supervised standing pilot system). Extinguish the pilot flame by placing the manual pilot valve in the closed positions (see Figure 14), and at the same time, begin recording the time it takes for the output signal from the electronic ignition control to be interrupted. The signal interruption can be detected either with a test light or a voltmeter. The response time should never exceed one second.
2.
3.Flow Switch: See attached vendor literature.
4.Low Water Cutoff (optional): See attached vendor literature.
3.4Inlet Temperature and Temperature Rise Adjustment
For proper operation the bypass and outlet valves must be adjusted to obtain the correct heater temperature rise. Use the following method to set the bypass assembly at start up:
1.With all bypass valves open, fire the heater for at least 10 minutes. The operating control should be set at least 5° to 10° F above the pool temperature to ensure continued operation throughout this set up procedure.
2.Observe the thermometer on the inlet header. To prevent condensation and damage to the boiler, the inlet water temperature has to be 100°F.