Winterization; Component Service; Troubleshooting - Hayward HP50951T Guide D'installation Et D'utilisation

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 chlorinator 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. 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 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.

WINTERIZATION:

In moderate climates, the heater can continue to operate during short-term cold spells. Do not use the heater to maintain the water
temperature just above freezing or for freeze protection. Care must be taken to avoid freeze-up in the heater. When it is used during
freezing weather, the pump must run continuously. The heater is not warranted against freeze-ups. In regions where freezing
temperatures are encountered, all water must be drained from the heater when it is out of service, to prevent damage to the heater
and piping. Draining the heat exchanger is recommended as part of the season's shutdown procedures.
NOTICE:
A heater damaged by freezing is not covered under the manufactures warranty.
DRAINING THE HEAT EXCHANGER: This procedure applies to installations where the heater is located higher than the pool water
level. If itis necessary to drain a pool heater located below the pool water level, you must either partially drain the pool, or isolate the
pool heater from the pool using valves, then perform draining the heat exchanger.
1. Set the heater to OFF mode.
2. Turn the electricity to the heater OFF at the circuit breaker panel.
3. Be sure the circulating pump is OFF.
4. If no drain plug is provided, open lower inlet water union and allow all water to drain from the heater.
5. Re-install the drain plug or reattach the water union.
SPRING START-UP: This procedure should be performed annually to ready your heater for the upcoming season. In addition to
the steps outlined below, it is recommended that a PERIODIC INSPECTION also be performed.
1. Inspect and clean the heater, being sure the heater is free of leaves and debris prior to startup.
2. Properly attached inlet and outlet piping and confirm the drain valve is closed.
3. Turn the filtration system pump ON and allow the system to run long enough to purge all the air from the lines.
4. Turn the electricity to the heater ON at the circuit breaker panel.
5. Set the heater to H mode and adjust the set point to the desired temperature setting.
6. If operating difficulties are encountered, contact a qualified service company for assistance.

COMPONENT SERVICE

NOTICE:
Only qualified service technicians, with appropriate test equipment, should be allowed to service the heater. For
conditions where refrigerant must be managed, an EPA certified technician is required. All of the components that comprise the
system have an effect on heater operation. Before proceeding with heater related troubleshooting tips, be certain that the pump
is operating correctly, the filters and strainers are not blocked, the valves in the piping are properly positioned, and the time
clocks are properly set.
WARNING:
not modify the heater or its components in any manner. To do so may result in a malfunction that could result in
death, personal injury, or property damage. Check with the pool owner to see if any part of the heater has been
under water. Replace any electrically operated component that has been under water
WARNING:
section of this manual prior to servicing. Always disconnect power circuit before connecting the heat pump, or
working on the heat pump. This equipment contains wiring that carries high voltage. Contact with these wires
could result in death or personal injury and/or may also cause property damage.

TROUBLESHOOTING

TROUBLESHOOTING:
ERROR and OPERATION CODES:
AUTOMATIC RESET TIME:
EXPLOSION HAZARD
Risk of Electric Shock Review all safety information provided in the GETTING STARTED
See Table 5: Troubleshooting Lookup
See Table 6: Display Code
The heater will automatically reset when an error condition is corrected and resume operation.
USE ONLY GENUINE REPLACEMENT PARTS
Do not attempt to repair broken or faulty components of this heater. Do
Chart.
Index.
51300002101 RevA
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