Heat Siphon® Swimming Pool Heat Pumps
D & DX Owner’s Manual
ALL RIGHTS RESERVED © 2007 by United States ThermoAmp Inc. • 1223 Heat Siphon Lane • Latrobe PA 15650 • 724 537 3500 • 800 447 9667
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If the heat up rate is slow then it will assume it is heating a pool and heat to the POOL SETpoint. AUTO PIC : lights and display
The Heat Siphon shows you it is Auto Pic-ing, or waiting to Auto Pic, by flashing both the green (pool) and yellow(spa) lights at the same
time. It will flash fast if it is waiting for a timer to expire, and flash slow once it turns on and starts the Auto Pic process. Once it has chosen a
mode to run in, it will stop flashing both lights and only turn on the chosen mode’s light. If it picks “auto pool” mode then you will only see
the green (pool) mode light turn on. “Auto spa” mode will be the yellow (spa) light
Even though you only see one light you will know you are still in Auto Pic mode because of the display text. The first part of the display
text will change to indicate what the Heat Siphon is doing. “AUTO HEAT 75F” tells you that it is still Auto Pic-ing a mode and the water temp
is 75. “AUTO POOL 75F” tells us that it has chosen the pool setpoint and the water temp is 75. “AUTO SPA 100F” tell us that it has chosen the
spa setpoint and the water temp is 100. The pool setpoint and the spa setpoint will always follow the water temperture in the Auto Pic Temp/
Setpoint loop. AUTO PIC : changing setpoint
You can change the setpoints for either POOL or SPA by pressing the up OR down arrow when you see the portion of text corresponding
to the setpoint you want to change. If you want to change the SPA setpoint, then press an
arrow key when you see “SPA SET 102F”, and to change the POOL setpoint, press an arrow key when you see, “POOL
SET 80F”. Just like in Pool or Spa mode, three seconds after your last keypress your new setpoint will be accepted with an audible beep.
OFF mode:
OFF mode puts the Heat Siphon into an off state. The Heat Siphon is now dormant until someone presses a key. Once any key is pressed,
the Player will restart into the last known mode before OFF was chosen. And the 240 second Off timer will begin. Fahrenheit/Celsius: changing
temperature scale
To change the temperature display from F to C, or from C to F, press and hold both arrow keys for three seconds. (you will hear beeping
during this time) Once you see the current scale (F or C) displayed, release both arrow keys and then press just one arrow key to change to the
desired temperature scale. You may scroll between the two scales by repeated pressing of an arrow key. Three seconds after your last keypress,
the new temperature scale will be accepted with an audible beep. Player Key Lock: locking and unlocking the keys
To lock the Player, press and hold both arrow keys until you see “LOC” on the display (six seconds), then release both keys. Three sec-
onds after you release, “LOC” will be accepted with an audible beep. Your keys are now locked. The display will continue to show the current
Temp/Setpoint loop and continue to heat your pool or spa as needed, however any keypress will show “LOC” on the display.
To unlock the Player, simply press and hold both arrow keys for six seconds until you hear a
beep, then release both buttons and the Player is now unlocked
