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Maintenance & Troubleshooting
Maintenance & Troubleshooting
Water Chemistry
Proper chemical balances are necessary for sanitary bathing conditions as well as ensuring your heat
pump’s long life. Be sure to keep your chemical and mineral concentration levels within the values
indicated in the table below. Failure to maintain proper water chemistry may cause damage to the
UltraTemp® Heat Pump and may void the warranty.
Test
Recommended Level
Free Chlorine
1.0 to 3.0 ppm (3.0 to 5.0 spa)
Bromine
2.0 to 4.0 ppm (3.0 to 5.0 spa)
pH
7.4 to 7.6
Total Alkalinity (TA)
With Calcium, Lithium, and Sodium Hydrochlorite
80 to 100 ppm
Total Alkalinity (TA)
with Sodium Dichlor, Trichlor, Chlorine Gas, and
Bromine Compounds
100-120 ppm
Calcium Hardness (CH)
200 to 400 ppm
Cyanuric Acid (Stabiliser)
30 to 50 ppm
(less than 30ppm with ORP controllers)
Total Dissolved Solids (TDS)
Less than 2000 ppm
Copper
0 ppm
* Concentration levels taken from “Basic Pool and Spa Technology” published by NSPI (National Spa and Pool Institute).
Inspection and Service
Pentair Heat Pumps are designed and constructed to provide long performance life when installed
and operated properly under normal conditions. Periodic inspections are important to keep your heat
pump running safely and efficiently through the years. Failure to properly maintain your unit can void
the warranty.
Owner Inspection
Pentair recommends that you inspect your heat pump on a continual basis and especially after abnor-
mal weather conditions. The following basic guidelines are suggested for your inspection:
1. Make sure the front of the unit is accessible for future service.
2. Keep the top and surrounding areas of the heat pump clear of all debris.
3. Keep all plants and shrubs trimmed and away from the heat pump.
4. Keep lawn sprinkler heads from spraying on the heat pump to prevent corrosion and damage.
5. If the unit is installed under a roof edge, install a gutter or diverter to prevent excessive water and
debris from pouring down into the unit.
6. Do not use this heat pump if any part has been under water. Immediately call a qualified profes-
sional technician to inspect the heat pump and replace any part of the control system which has
been submerged.
Summary of Contents for ULTRATEMP HXi
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