Professional Inspection; Section 7. Professional Maintenance; And Service; Heat Pump Design - Jandy JE1500T Manuel D'installation Et De Fonctionnement

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Jandy ® JE Heat Pumps
During normal operation, the heat pump produces
3 to 5 gallons of condensate per hour. If condensate
drainage is above this range during operation or if water
continues to drain from the base when the heat pump
is not in operation for more than an hour, a leak in the
internal plumbing may have occurred. Call a qualified
heat pump technician to investigate the problem.
Keep the top air flow discharge and air flow intake area
clear of debris so the air flow though the heat pump
is not restricted. The cooler discharge air from the top
should not accumulate and be drawn into the side air
intake coils. Keep all plants and shrubs trimmed away
from the heat pump.
Make sure the front of the unit is accessible for future
service.
Keep lawn sprinkler heads from spraying on the heat
pump to prevent corrosion and damage. Use a deflector
if needed.
If the unit is installed under a very sharp roof pitch or
under a roof without a gutter, a gutter or diverter should
be fitted to prevent excessive water from pouring down
into the unit.

Professional Inspection

Inspections performed at least once a year by a qualified
technician are required to maintain your heat pump's
safe and efficient operation. The following basic safety
checks must be performed.
1 Check for loose or broken wires and terminal
connections.
2. Verify the pressure switch or flow switch
operation. Turn the heat pump OFF. Disconnect
the power to the pump time clock, or turn the
pump time clock to an OFF position. Turn the heat
pump back ON. The heat pump must not come on.
3. Inspect the electrical controls, specifically the
following:
a. High and Low Limits
b. Pressure Switch or Flow Switch
c. Temperature Control
4. Inspect the evaporator coil for blockage and clean
as necessary.
5. Check for spider webs or debris in the condensate
drain; clean if necessary.
6. Conduct a normal operating cycle and observe that
the unit operates properly.

Section 7. Professional Maintenance

and Service

7.1

Heat Pump Design

The Zodiac heat pump is one of the most efficient
®
ways to heat a pool or spa. The heat pump transfers heat
from the outside air to the pool or spa water by means
of an internal heat exchanger.
Installation and Operation Manual
ENGLISH
When the fan is turned on, warm air is drawn through
the refrigerant charged evaporator, turning the cold
liquid refrigerant to a warm gas. The gas then flows
through the compressor where it is compressed resulting
in a much higher temperature.
The hot gas enters the heat exchanger where the water
extracts the heat. The pump pulls in cool pool water,
which in turn converts the hot gas back into a liquid
refrigerant and starts the cycle over again.
The JE heat pump and the EE-Ti heat pump uses a
refrigerant called R-410A. It is a non-ozone depleting
refrigerant that is accepted by the EPA. R-410A has
higher operating pressures and cooling capabilities than
R-22, which is the refrigerant used in the AE-Ti heat
pump. Therefore, R-410A should NEVER be used in
any of the AE-Ti heat pumps.
The EPA requires certification to purchase or use
R-410A. It is recommended that service personnel be
trained in installation, service, brazing, and maintenance
procedures. They are similar to what the industry has
used for the R-22 system, however, they should be
redefined for the higher operating pressures.
NOTE The maximum heat output and efficiency of
a heat pump is dependent upon the quality
and performance of the major components
used. Equally important are the environmental
conditions (for example, air temperature,
humidity, water temperature, and wind).
7.2 Heat Pump Components and
Operation
Evaporator - As air passes through the evaporator, the
refrigerant in the evaporator absorbs heat from the
ambient air. The warmer the ambient air and the
larger the surface area of the evaporator the more
heat it can collect.
Fan - The heat pump fan produces high volume airflow.
Adequate airflow is required to move warm air
through the large evaporator.
Compressor - The compressor compresses the
refrigerant gas to a higher pressure, increasing the
temperature.
Heat Exchanger - As the final step to the heating
process, the heat exchanger transfers the heat
from the hot gas to the water. (Also known as a
condenser.)
Reversing Valve - (For Hybrid Units with Optional
Chiller and Hot Gas Defrost) The reversing valve
reverses the flow of the refrigerant, which results
in transferring cold gas to the water, thus lowering
the temperature.
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