Raypak P-R185B To P-R405B, C-R185B To, Installation And Operating Instructions Manual

Page: 30 / 52

30
PROGRAM MODE BUTTON
Notice to owner- Thermostat operation
Your heater is equipped with a microprocessor controlled thermostat that controls the pool or spa temperature
by measuring the temperature of the water coming back through the heater. It will then monitor the water
temperature and turn the heater back on when it senses that the water temperature is falling below the set point.
It is normal to experience small fluctuations in the return water temperature during the operation of the heater.
The thermostat is calibrated with a very close tolerance to ensure accuracy of the set temperature. Thus,
slight
fluctuations in water temperature may cause your heater to cycle on and off frequently. This
phenomenon is not a problem.
It will not harm the heater nor interfere with its function to precisely control the
temperature of the pool or spa.
THERMOSTAT CONTROL OPERATION
The pool heater thermostat on the upper front panel of
the heater controls the pool/spa water temperature. This
control center contains a mode button, up and down
temperature adjustment buttons, and a LCD display.
Mode Button
The MODE button functions as a means to turn the
heater off or on in either the pool or spa temperature
setting. The LCD display indicates the mode the heater
is in and the actual water temperature.
Temp Buttons
If the mode is in POOL or SPA, the desired pool or spa
temperature will also be displayed and may be changed
using the UP or DOWN buttons. A manual toggle switch
is also provided right below the MODE button to allow
the heater to be turned off.
Operation
In the POOL or SPA modes, the actual water temperature
is displayed along with the desired pool or spa
temperature. If the heater is firing, a flame icon will be
visible.
To adjust the desired pool or spa temperature setting,
make sure the control is in the appropriate mode (POOL
or SPA) and push the UP or DOWN buttons to get the
desired set point temperature.
LCD DISPLAY TEMP
BUTTONS
MODE
BUTTON
Set Points
The electronic thermostat cannot be set above selected
maximum set points. The maximum default set points
are factory set at 104°F for both pool and spa. These
can be changed to a higher or lower value to suit your
needs, but can never be set above 107°F.
Program Mode Button
To adjust the set point, press the Mode button until the
display reads OFF. Remove the four screws holding the
control cover on. Swing control panel down so the back
side of the board is visible (
see page 27 ). Locate the
Program Mode button as show in figure 9481.
Hold this button and use the Mode button to select “Set”
on the digital display. You can release the button once
“Set” appears. Using the “Up” and “Down” buttons will
change the Maximum Temperature Setting. The control
can be set for a maximum of 107°F. A separate value
can be set for either Pool or Spa by using the Mode
button to select Pool or Spa and using the “
Up ” and
“ Down ” arrows to select the desired Max temp for each.
Once this is done reassemble the control panel.
Fahrenheit vs Centigrade
The digital display is capable of displaying Centigrade
as well as Fahrenheit temperatures. To change the
display follow the instruction above to access the
Program Mode Button.
Hold this button and use the
Mode button to select “F/C” on the digital display. The
“Up” and “Down” buttons will select “F” or “C” on the
temperature display. Once this is done reassemble the
control panel.
Fig #9481
Fig #9480
DIGITAL THERMOSTAT CONTROLS
DISPLAY
call for heat
FLAME ICON
SET POINT
TEMPERATURE
MODE
POOL or SPA
WATER
TEMPERATURE
Fig# 9484