Hayward H150FD - Consumer Operation & Maintenance; Maintaining Proper Water Chemistry

Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
8
SECTION II. CONSUMER OPERATION & MAINTENANCE
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ex-
changerbeprotectedfromdamagingorcorrosivechemicals,insuf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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owingthroughtheheaterattheminimumratedowrateduringoperation.Checkthat
thepumpisoperatingandthesystemislledwithwaterandpurgedofallairpriortostartingtheheater.The
minimumratedowratesarelistedintheinstallationmanualonpage25.Someinstallationsmayrequirean
adjustmenttothewaterpressureswitchforproperlow-owprotection.Testyoursystemandifnecessary,
adjustthewaterpressureswitchasdescribedintheinstallationmanualonpage34.
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chem-
istrybalanceandmineralcontentcancausescalinganddepositstoformonpoolwalls,intheltrationsystem,
intheheatexchangertubesandadditionallycanpromotecorrosiveactiontoallmetalsinthewaterpath.Chang-
ing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
owingthroughtheheater.DONOTplacechlorineorbrominetabletsintheskimmer.
WARNING:
Failure to Maintain Proper Water Chemistry May Cause
Premature Heat Exchanger Damage or Failure
MAINTAINING PROPER WATER CHEMISTRY
Recommended
Level
Effect of Low Levels Effect of High Levels
Chlorine
1 - 3 ppm
Bromine
2 - 4 ppm
pH
7.4 - 7.6
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 exchangerscaling of heat exchanger
Salt
2700 - 3400 ppm poor salt chlorinator performancecorrosive to heat exchanger
hazy water, algea growth,
bacteria causing infections
swimmer irritation, bleaching of clothes/hair,
corrosive to heat exchanger