Heat Siphon® Swimming Pool Heat Pumps

D & DX Owner’s Manual

Made in Latrobe Pennsylvania

Since 1983 U.S.A.

ALL RIGHTS RESERVED © 2007 by United States ThermoAmp Inc. • 1223 Heat Siphon Lane • Latrobe PA 15650 • 724 537 3500 • 800 447 9667

General information:

The Player will typically display a repeating loop of information usually containing the current pool temperature and the current setpoint.

At times the display will show a timer or error codes if conditions exist, but mostly you will come to recognize the Temp and Setpoint loop.

One of the timers that you will see is the Off timer. This is a 240 second (4 minute) countdown that will occur anytime the Heat Siphon

You now have 3 seconds to press the up (or down) arrow. You can continuously press the up (or down) arrow to scroll through the four different

modes. The modes are: POOL, SPA, AUTO PIC, and OFF. Three seconds after your last keypress the mode will be accepted with an audible beep.

Notice that the lights will change to match the mode.

POOL mode: changing setpoint

The Temp/Setpoint display loop for Pool mode is: “POOL 78F; HEAT SET 80F” You can tell you are in POOL mode by the green light and

the use of the word “POOL” in the water temperature display, ex. “POOL 78F”. “HEAT SET 80F” tells you the pool thermostat is set for 80F.

At any time you can press the up or down arrow key once, the current setpoint temperature will blink, at that point press either the up

arrow to increase the setpoint or the down arrow to decrease setpoint. Three seconds after your last keypress, the new setpoint will be accepted

with an audible beep. You can confirm your new setpoint by watching the Temp/Setpoint display loop. The Heat Siphon will maintain this

temperature within a degree and a half.

off, switch your valves to pool or spa, and turn your pump back on. The Heat Siphon will do the rest.

How does AUTO PIC work?

Any time the Heat Siphon sees the water pump turn on, the Heat Siphon tries to decide what body of water it is heating. It does this by

turning on and heating the water for 5 minutes. If the heat up rate is fast then it will assume it is heating a spa and heat to the SPA SETpoint.

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

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

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