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Factory Programming
PHT 2004 S Controls
(S models)
1.1 Display units
During normal operation, the display shows the SPA water temperature in ˚F or ˚C (see low level programming
to select the temperature unit). The screen resolution on the display is 1˚F and 0.5˚C. After a power-up, the
display will blink until someone presses a key. This feature is to let the user know that a power failure has
occurred.
1.2 Smart Winter Mode
This system prevents the water from freezing in the pump plumbing. An on-board sensor continuously checks
the ambient air temperature in the enclosure. At any time, if the temperature goes below 0˚C, the system
activates the Smart Winter protection for the next 24 hours. During this mode, the system starts periodically a
Smart Winter cycle if the pump didn’t run since the last cycle. A Smart Winter cycle consists of circulating
warmer water in the plumbing by turning the pump on for 1 minute. During a Smart Winter cycle, the filtering
cycle LED
blinks on the display. Depending on the ambient temperature, the period of time between each
cycle is 15, 30, 60 or 120 minutes.
1.3 Filtration cycle
When there is an active Filter cycle, the Filter cycle icon
will is on. It occurs twice a day (every 12 hours). It
consists of starting the pump in high speed for 1 minute to purge the plumbing, then to low speed for the
rest of the cycle. The ozonator will be on for the entire duration of the filtering cycle. At any other time, the
ozonator is not allowed to be on.
The Filter cycle Duration is user programmable. By holding the light key, the display shows the current Duration
value (“F 02, 03, 04, 05 or 06”). Use the Up and Down keys to adjust this value as desired. During the Duration
adjustment, if the user doesn’t use any keys for 5 seconds, the system “stores” the new Duration, but it will
take effect only at the next cycle. However, if the user exits the Duration adjustment by pressing the Light key
again, a Filter cycle is immediately started, and a new 12-hour cycle is started.
If an accessory (a pump or the light) is used manually, the Filter cycle is suspended (the ozonator and pump
goes off*) the time the accessories are used. Once all accessories are turned off (whether manually or by the
built-in timer), the Filter cycle remains suspended for an extra 40 minutes. Finally, when a Filter cycle is
suspended, the Filter cycle icon will blink ON for 1/2 second, OFF for 1/2 second, ON for 1/2 second, and finally
OFF for 1-1/2 second period.
*The pump stays on is there is a call for heat or started manually.
1.4 Low current option
This feature is to avoid overloading the input breaker/GFCI. If the LC mode (low current) is selected, the heater
is not allowed to be on when the pump is running at high speed. There are no restrictions with the HC (high
current) configuration. The LC/HC mode is selected by a low-level programming
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PA C I F I C H O T T U B S O W N E R ’ S M A N U A L
Содержание Pacific 2004
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