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ULTRATEMP ETI™ Hybrid Heater Installation and User’s Guide
Professional Maintenance and Service
The maximum heat output and efficiency of a heater 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).
To maintain maximum performance and efficiency, keep
the air coil clean from dirt and debris. It is recommended
to clean your air coil once a year by flushing the coil with
compressed air or hosing off the coil with a garden hose.
Care should be taken to not bend the coil fins as this will
restrict the airflow and lower your heater performance.
Compressed air can also damage the heater coil. DO
NOT USE A PRESSURE CLEANER ON THE UNIT.
The heater should be maintained at least once a year by
qualified personnel to maintain maximum performance
and efficiency. The unit should be powered off during
maintenance.
Winterizing
In areas where freezing temperatures occur, you should
protect your pump, filter, and heater from the elements.
Perform the following steps to completely drain the heater.
1. Turn off the electrical power to the heater at the main
breaker panel.
2. Close main gas control valve and manual gas valve.
3. Shut off the water supply to the heater.
4. Drain all water from the heater system.
5. Disconnect the water inlet and outlet unions from the
system plumbing.
6. If the heater is below pool water level, be sure to
close the isolation valves to prevent from draining the
pool. Isolation valves are not required and should not
be used on heaters installed above pool water level,
except when needed for winterization valves.
7. Remove the black drain plug located to the right of the
High Limit Switch (HLS).
Alternatively, disconnect the water management
system at the two internal unions and quick release
clips to partially drain, then reassemble.
8. Use a blower, connected to the outlet of the heater, to
remove all remaining water from the heater.
9. Cover air inlet grate with a plastic bag to prevent bugs,
leaves, etc., from getting into the heater.
10. Remove the hose barb from the condensate
neutralizer cartridge outlet and drain all water from the
cartridge and connected tubing.
Spring Start Up
If your heater has been winterized, perform the following
steps when starting the system in the Spring:
1. Uncover the heater and inspect the top and sides for
any debris or structural problems.
2. Connect the water inlet and outlet unions to the
system plumbing. Ensure they are connected correctly
and that there are no water leaks.
3. Place the drain plug back into the port in the water
management assembly.
4. Reconnect the condensate neutralizer cartridge hose.
5. Turn on the electrical power to the heater at the main
breaker panel.
6. Before starting the heater, circulate water through the
heater for several minutes until all air no
ises stop.
See
also
Pre-Startup
(page 21) and
General Maintenance
(page 33).
Separation hazard. Purging the system with
compressed air can cause components to separate,
with risk of severe injury or death to anyone nearby. Use only a low pressure
(below 5 PSI or 35 kPa), high volume blower when air purging the heater.
Failure to winterize could cause damage to the heater
and will void the warranty.
Water trapped in the heat exchanger can result in freeze
damage to the exchanger or headers. Freeze damage
is specifically not covered by the warranty.
When starting the heater for the swimming season
with a water temperature below 50° F (10° C), the
heater may be used to heat the water; however, make sure that the heater
operates continuously until the water temperature reaches the heater’s
minimum setting of 68° F (20° C). During cold weather, if there is no danger
of freezing, operate the filter pump continuously even if the heater is not
operating. If air temperatures are expected to drop below freezing (32° F/0°
C), shut down the heater and winterize it.
