Water Chemistry - Hayward HeatPro VS HP50952T Manuel D'installation Et D'utilisation

Water Chemistry

WARNING
Water Chemistry.
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The heat exchanger in your pool heater is made from the highest quality of materials. The titanium condenser is a premium material and the processes used
to manufacture the heat exchanger are state of the art in pool heater design and manufacture. However, it remains vital that the heat exchanger be protected
from damaging or corrosive chemicals, insufficient water flow or improperly balanced water chemistry. Heat exchanger damage or failure resulting from im-
proper flow, improperly balanced pool water or the improper addition of sanitizer into the water is NOT covered under the terms of the warranty. The following
factors are critical to heat exchanger protection. Follow these guidelines to help prevent pre-mature damage or failure to your heater and heat exchanger.
1. WATER FLOW THROUGH HEATER Water must be flowing through the heater at the minimum rated flow rate during operation. Check that the pump
is operating and the system is filled with water and purged of all air prior to starting the heater. The minimum rated flow rates are listed in the
specifications section.
Chemical
Chlorine
Bromine
pH
Total Alkalinity
Calcium Hardness
Salt
2. WATER CHEMISTRY: The chemistry balance and mineral content of swimming pool and spa water changes rapidly due to the addition of sanitizing
chemicals, user loads, exposed rain, runoff and the amount of sun - to name a few. Improper chemistry (See Table4) balance and mineral content
can cause scaling and deposits to form on pool walls, in the filtration system, in the heat exchanger tubes and additionally can promote corrosive
action to all metals in the water path. Changing spa water regularly and maintaining the correct chemical balance in your pool/spa will keep the
pool/spa safe and sanitary, and will help the heat exchanger longevity. Use a 4-way pool/spa water test kit to check your water frequently (at least
weekly). Use the following guidelines to help maintain proper water chemistry:
3. SKIMMER CHLORINATION: Placing chlorine or bromine Tablets directly into the skimmer may result in high chemical concentrations flowing through
the heater. DO NOT place chlorine or bromine Tablets in the skimmer.
4. CHLORINATOR INSTALLATION: Chlorinators must be installed downstream of the heater, and a check valve must be installed between the heater
and chlorinator to prevent high chemical concentrations from back flowing into the heater. Make sure your piping arrangement meets the chlorina-
tor installation requirements shown on page 26.
5. USE BYPASS: Until water chemistry is properly balanced, so that corrosive and potentially damaging water will not flow through the heater and
therefore the heat exchanger. Close the bypass valve once the water is properly balanced.
WARNING
Bypass.
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exchanger.
Ensure water flow through the heater is restored before operating the heater. A bypass feature is also advantageous for service needs and for the ability to
remove the heater from the water path when not heating.
Failure to maintain proper water chemistry may cause premature heat exchanger damage or failure.
Table 4: Water Chemistry
Recommended Level
1 - 3 ppm
hazy water, algae growth, bacteria
2 - 4 ppm
7.4 - 7.6
80 -120 ppm
200 - 400 ppm
2700 - 5000 ppm poor salt chlorinator performance
Failure to close the bypass valve when attempting to operate the heater will result in extensive damage to the heat
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Effect of Low Levels
causing infections
corrosive to heat exchanger,
swimmer irritation
corrosive to heat exchanger,
large fluctuations in pH
corrosive to heat exchanger
Effect of High Levels
swimmer irritation, bleaching of
clothes/hair, corrosive to heat
exchanger
cloudy water, scaling of heat
exchanger, reduced sanitizer
effectiveness
scaling of heat exchanger
scaling of heat exchanger
corrosive to heat exchanger
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