21
SECTION 5. CONSUMER OPERATION & MAINTENANCE PROCEDURES
FOR YOUR SAFETY - READ BEFORE OPERATING
The heat exchanger in your Hayward pool heater is made from the highest quality of copper and nickel (Cupronickel) materials.
The premium materials and the exacting processes used in the manufacture of the heat exchanger is state of the art in pool heater
design and manufacture. Yet, it remains vital that the heat exchanger be protected from damaging or corrosive chemicals, insufîš¿-
cient water ow or improperly balanced water chemistry. Heat exchanger damage or failure resulting from improper ow, improperly
balanced pool water or the improper addition of sanitizers into the water is NOT covered under the terms of your warranty.
The factors outlined on page 3 of this manual are critical to heat exchanger protection. Follow these guidelines to help prevent
premature damage or failure to your heater and heat exchanger.
HEATER OPERATION:
Full lighting and shutdown instructions are included on the Sighting instructions label secured inside the cabinet. The instruction
labels are shown in Figures 39 and 40. The millivolt heater must be lit manually. The electronic ignition models are lit automatically
on each call for heat.
! WARNING: If you smell gas in the appliance area or near the oor (PROPANE IS HEAVIER THAN AIR AND HENCE SETTLES
ON THE FLOOR), stop and follow instructions on front cover. Since propane can accumulate in conîš¿ned areas, extra care should be
taken when lighting propane heaters. It is always a safe practice to keep your head well away from the lower îš¿rebox opening when
lighting the heater.
! NOTE: Do not use the unit below 40°F temperature with out adequate temperature protection. Do not operate heater while
an automatic pool cleaner is in use unless the ow rate has been checked as correct under operation with the pool cleaner and a
dirty îš¿lter.
WARNING:
Failure to Maintain Proper Water Chemistry May Cause
Premature Heat Exchanger Damage or Failure
The heat exchanger in your Hayward pool heater is made from the highest quality of copper and nickel (Cupronickel) materials. The
premium materials and the exacting processes used in the manufacture of the heat exchanger is state of the art in pool heater design and
manufacture. Yet, 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 improper flow, improperly balanced pool
water or the improper addition of sanitizers into the water is NOT covered under the terms of your 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 exc
hanger.
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 installation
manual on page 13. Some installations may require an adjustment to the water pressure swit
ch for proper low-flow protection. Test
your system and if necessary, adjust the water pressure switch as described in the installation manual on page 32.
2. POOL/SPA WATER CHEMISTRY
The chemistry balance and mineral content of swimming pool water changes daily due to the addition of pool and sanitizing chemicals,
bather loads, rain, runoff and the amount of sun - to name a few. Improper chemistry
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 protect the heat exchanger. Use a 4
-way pool/spa water test kit to check your water frequently
(at least weekly). Use the following guidelines to help protect your heater's heat exchanger:
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
Chlo
rinators 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 chlorinator
installation requirements shown in the installation manual on page 14.
5. BYPASS
Until water chemistry is properly balanced, and if your piping h
as a bypass valve installed for the heater, open the bypass 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. Failure to close the bypass valve when attempting to operate the heater will result in extensive
damage to the heat exchanger. Ensure water flow through the heate
r 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. Refer to page 13 in the
installation manual for further information.
This additional information is intended to provide the most current and up-to-date information to the customer.
Please refer the the below text, in add
ition to the manual for information and warnings about your product.
Use with 1302704001 Rev E
Models H150, H200, H250, H300, H350, H400
Addendum to H-Series Heater Manual
Effect of Low Levels Effect of High Levels
corrosive to heat exchanger,
swimmer irritation
cloudy water, scaling of heat exchanger,
reduced sanitizer effectiveness
Total Alkalinity
80 - 120 ppm
corrosive to heat exchanger,
large fluctuations in pH
scaling of heat exchanger
Calcium Hardness
200 - 400 ppm corrosive to heat exchanger scaling of heat exchanger
Salt
2700 - 3400 ppm poor salt chlorinator performance corrosive to heat exchanger
hazy water, algea growth,
bacteria causing infections
swimmer irritation, bleaching of clothes/hair,
corrosive to heat exchanger
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