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11. CONTROL SETTINGS
The user can access these control settings by pressing
and holding the MENU button for 5+ seconds. Any
changes to values are stored into the non-volatile memory
when the MENU button is pressed – which also toggles
to the next setting. Failure to press any buttons for 60
seconds will cause the screen to revert back to its previous
operating mode screen. The user mode can also be exited
by pressing and holding the MENU button for 5+ seconds.
NOTE:
See "Operational Status Messages" on page
37 for messages that you may see during normal
operation.
Set Current Time
This allows setting of the current time. The time is followed
by an “A” or “P” for AM and PM respectively. The control
has a 24-hour time clock – although it is NOT a 7-day
time clock. The time clock is used for control of the pump
periods and AUX1 & AUX2 times.
C/F Display
This setting is used to define the units of measure for all
temperature readings. Fahrenheit is the default value. You
can change the setting to Celsius by toggling the UP or
DOWN button and then pressing the MENU button to lock
in the change.
Spa Max Temp
This setting is used to define the maximum temperature
that the control can be set at for the Spa operation. The
range is 65°F – 104°F (18°C – 40°C). The default value is
104°F (40°C).
Pool Max Temp
This setting is used to define the maximum temperature
that the control can be set at for the Pool operation. The
range is 65°F – 95°F (18°C – 35°C). The default value is
95°F (35°C).
Pump Periods
When the Pump Operation in the Installer’s Menu is set to
“4-Speed Enabled” or “Variable Enabled”, this allows the
setting of Pump Periods from this menu. When setting
this parameter, the control displays “Pump Periods” on the
first line of the display. The number of pump periods (0
– 4) is displayed on the center of the 2nd line. Pressing
the UP or DOWN buttons increments/decrements the
number of pump periods – factory default is 1. If a non-
zero number of pump periods is selected when the MENU
button is pressed, the control will prompt for On/Off times
for each of the selected number of pump periods.
12. TEMPERATURE CONTROL
The control uses the appropriate Pool or Spa setpoint as
selected in the Operating mode. The heat demand begins
when the water temperature is 0.5°F (0.3°C) or more
colder (or 0.5°F (0.3°C) or more hotter in cooling mode)
than the setpoint.
13. ADDITIONAL FEATURES
Pump Control
The control is equipped to operate the system pump. The
control provides for an output for a single-speed pump
(0.75A @ 24 VAC maximum) as well as an output for a
variable-speed pump (10mA @12 VDC). Four signals are
provided for selection of 4 discrete speeds for a variable-
speed pump. The control can be configured to provide
a PWM signal on the "Speed1" output. The control will
energize the pump at the requested speed for each of the
pump periods set in the program mode. If a heat pump
demand is present during a scheduled pump operation,
the pump runs at the override speed (Speed 1) regardless
of the scheduled speed. When the pump is active
because of scheduled operation and there is no active
heat demand, the control sets the 3-ways valve outputs to
the states set in the program mode schedule.
Low Ambient (Outside) Lockout
The control is equipped with a Low Ambient Lockout
feature which will prevent the start of a new cycle if the
ambient temperature is lower than the programmed value.
This feature is accessed through the Installer/Service
Sub-menu as noted in INSTALLER/SERVICE menus on
Table E
through
Table G
. The default value is “OFF”,
but the temperature can be adjusted between 30°F and
50°F (-1°C and 10°C). This feature can be enabled if it
is desired to not operate the unit if the temperature falls
below this value. NOTE: This feature will NOT stop the
operation of an existing cycle, it will only prevent operation
of a new cycle.
An open ambient temperature sensor – display will read
“Air Temp -46°F” (-43°C) – will trigger an “Outside Lockout”
error if the Low Ambient lockout is enabled. A shorted –
display will read “Air Temp 282°F” (139°C) – ambient
temperature sensor will also cause the control to shut off
the compressor regardless of if the Low Ambient lockout
is enabled.
Control Lock Box Mode
The control is equipped with a Control Lockout feature
which is accessed by pressing and holding the MENU and
DOWN buttons for 5 seconds. The user will be prompted
to enter a 3-digit code. A cursor flashes under each digit
in the 3 digit code when that digit is being set. Pressing
the UP or DOWN buttons increases or decreases the
Summary of Contents for Raypak 2450
Page 43: ...43 Figure 15 Piping for Heat Pump Pool Heater and Gas Pool Heater...
Page 52: ...52 NOTES...
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