Routine Operation And Maintenance - Blue I HydroGuard HG-302 Manual De Uso

Capter 5: Routine Operation and Maintenance
Once installed by a qualified technician, HydroGuard can begin monitoring and controlling pool water quality.
HydroGuard is specifically designed for easy operation; however some periodic maintenance is still required.
however some periodic maintenance is still required. Basic guidelines are provided in Table 6; however the
actual schedule may vary depending on the actual conditions and use.
Service Required
Replacing Reagents
Cleaning Pre-Filter
Calibration (pH, ORP, Temp, Cl)
Replacing Reagent Pump Head and Tubes
• Basic Operation involves setting the desired parameters and monitoring the system for alarms. When
operating normally, HydroGuard demands very little operator involvement.
• Calibration: Sensor sensitivity and accuracy can degrade or drift over time. For this reason, HydroGuard
settings must be periodically recalibrated and compared with measurements from other measuring
devices, such as electronic photometers, pH sensors, and thermometers or compared to standard
solutions like pH buffers or ORP standards.
• Reagent Replacement: HydroGuard uses a very small amount (0.03 ml) of chlorine reagents each time
water is sampled. The adaptive measurement interval will automatically vary the testing interval
depending on water stability. This allows the two 500 ml bottles to last approximately 4 to 8 weeks. A
Low Reagents alarm is issued when either one of the reagent bottles approaches depletion and should be
replaced. If the reagents are not replaced before the reagents are depleted, the testing and chlorine
dosing will stop and a No Reagents alarm will be displayed, therefore it is important to replace reagents
before this occurs.
• Filter Cleaning: The HydroGuard unit has a filter installed in its water supply pipe, which collects
particles and impurities. It should be cleaned or replaced periodically, depending on water quality. The
filter cover is clear allowing for a quick visual inspection to determine if cleaning is required.
• Shut-down and Winterizing: In areas where temperatures drop below freezing, all water must be
removed from the controller to prevent components from breaking and the probes must be removed and
stored in a warm area and kept wet at all times. The probes will last for several years if properly treated
but will not read properly if exposed to freezing temperatures or stored in air.
Check every 4 weeks, clean when visible dirt and oil
Table 6: Periodic Maintenance Schedule
36
Frequency Required
Every 4 to 8 weeks
Every 6 to 12 months
Every 12 months