Full Product Manual

Pomona, CA Clemmons, NC Nashville, TN
Tel: [phone] www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
9
New Figure 1 for UHS owner manual page 9:
Figure 1
New text for UHS owner manual page 11:
TEMPERATURE ADJUSTMENT
This pool heater is equipped with a digital thermostat which allows the user to select the desired
water temperature. The heater will then function automatically to maintain the desired
temperature. The heater has 3 modes of operation:
1. STANDBY: in this mode, the heater will not function to heat the water.
2. SPA: in this mode, the heater will automatically function to maintain the water
temperature setting for SPA mode.
3. POOL: in this mode, the heater will automatically function to maintain the water
temperature setting for POOL mode.
Use the MODE button to change modes. The indicator lights will illuminate to show which mode
the heater is currently in. Each mode has its own temperature setting, allowing the user to have
2 individual pre-set temperature settings. To adjust the temperature while in SPA or POOL
mode, use the UP and DOWN buttons. The numeric display will flash to indicate the
temperature setting is being displayed / adjusted. When the numeric display is not flashing, the
actual water temperature is being displayed. The temperature settings for both SPA and POOL
modes are initially set at the factory to 65°F. The minimum allowed settings for SPA and POOL
modes are both 65°F. The maximum allowed settings for SPA and POOL modes are adjustable
up to 104°F using the temperature lockout feature (see below).
After selecting SPA or POOL mode or adjusting the temperature setting, it is normal for the
heater to delay up to 10 seconds before the heater starts operating. This delay is an internal
self-test of the heater. On occasion, the numeric display may show a diagnostic error code;
refer to list of diagnostic error codes in Figure 4. Pressing the MODE button to cycle to
STANDBY and back to SPA or POOL will clear a diagnostic error code. When clearing a
User Interface
Keypad
Front Access
Panel
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
theinstructionsonthefrontcoverofthismanual.Sincepropanecanaccumulateincon-
nedareas,extracareshouldbetakenwhenlightingpropaneheaters.
ATTENTION:Donotusetheheaterbelow40°F(4°C)temperaturewithoutadequatetemperatureprotection.
WARNING:Donotingestalcoholordrugsduringuseorpriortousingpool,spa,orhottub.Ingestionofsuch
intoxicantscancausedrowsiness,whichcanleadtounconsciousness,andsubsequentlyresultindrowning.
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owingintotheheater.Makesureyour
pipingarrangementmeetsthechlorinatorinstallationrequirementsshownintheinstallationmanualonpage26.
5. BYPASS
Untilwaterchemistryisproperlybalanced,andifyourpipinghasabypassvalveinstalledfortheheater,
openthebypasssothatcorrosiveandpotentiallydamagingwaterwillnotowthroughtheheaterandthere-
fore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owthroughtheheaterisrestoredbeforeoperatingtheheater.Abypassfeatureisalsoadvanta-
geousforserviceneedsandfortheabilitytoremovetheheaterfromthewaterpathwhennotheating.Refer
topage26intheinstallationmanualforfurtherinformation.
HEATER OPERATION:
Fulllightingandshutdowninstructionsareincludedonthelighting&operatinginstructionslabelafxed
totheinsideofthefrontaccesspanel.SeeFigure1forthelocationofthislabelandthekeypad.SeeFigure2
forthelabel.
Figure1:Keypadandlabellocations