It may be necessary to move the opposite set point to
achieve the desired setting. Once the desired temperatures
are selected, return the key to the
RUN
position.
Alarm Lockout
The alarm control module can be locked to prevent changes to
the
set points
, even with the access key.
■ Once
caution set point
and
alarm set point
has been set,
remove the screws from upper right and lower left corners of
front plate. Remove the control module from the 4
"
x 4
"
box.
■
Enable set point lockout
Enable
- DIP Switch 2 =
ON
Disable
- DIP Switch 2 =
OFF
■ Reinstall the control module into
the 4
"
x 4
"
box.
■ When the key is placed in the
SET
position, the display will alternate
between a
set point temperature
and the characters
LOC
.
■ Set point temperatures can be viewed but unable to change.
Alarm Operation
Normal Mode:
■
Green Valve (normal) LED
LED is lit to indicate
normal operation; that water temperature is below
set
point temperature
and can flow. If optional solenoid valve
is installed, it is in the open position.
■
Flashing Red Dot
A flashing red dot (Heart Beat)
in the lower right corner of the display indicates that the
systems processor is running.
Caution Mode:
■
Amber Caution LED
LED will blink and the audible
signal will sound briefly every 60 seconds when the
temperature reaches the
caution set point
indicating
attention should be paid to the system.
■
Green Valve (normal) LED
LED will remain lit
indicating normal operation.
Alarm Mode:
■
Red Alarm LED
LED will blink and the
Amber
Caution LED
will go out if the output temperature
reaches the
alarm set point
. A continuous pulsing audible
signal will also be heard.
■
Green Valve (normal) LED
LED will go out indicating
no water can flow. (If solenoid is installed, valve will close)
Signals mean immediate attention should be given to the system.
Alarm Hysteresis:
■
Amber Caution LED
LED will light if the temperature
decreases below the
alarm set point
indicating that the
temperature is lower than the
alarm set point
but still
greater than the
caution set point
.
Alarm condition/mode
will still be in effect. The system
will only reset when the temperature decreases below the
caution set point
.
■
Relay
(customer supplied option)
-
Connect relay coil wires
between the relay and the
valve power output terminals
on
the back of the control module as identified in Figure 2. Note
that there is no polarity required between connections.
Fahrenheit / Celsius Temperature Display Setting
■ Select either Fahrenheit or Celsius
display units by setting Dip Switch
on control module circuit board.
Fahrenheit
DIP Switch 1 =
OFF
Celsius
DIP Switch 1 =
ON
Electrical Enclosure Box
■ Secure control module in electrical box using the two (2)
screws provided with box. Screws should be inserted into the
upper right and lower left corners of the control module.
■ Do not remove upper left and lower right screws securing the
control module together.
Temperature Set Point Adjustments
NOTE:
The following settings were set at the factory
:
Caution Alert Temperature = 114˚F (45.6˚C)
High Limit Alarm Temperature = 120˚F (48.9˚C)
■
Reset temperature
settings
- Reset the above
factory temperature
settings as required by
the application to prevent
erratic temperature
readings that can
prematurely activate the
alarm.
■
SET key position
- Turn
key from the
RUN
position
to the
SET
position.
■
Identify caution set
point temperature (A)
Press
SELECT
keypad
button until
A
appears in the first field of the LED display.
The three (3) digits immediately following the
A
identifies the
current
caution set point
temperature.
■
Set caution set point temperature -
Press
up
down
keypad arrow buttons located below the display to increase
or decrease temperature setting.
■
Identify alarm set point temperature (H) -
Press
SELECT
keypad button until
H
appears in the first field of the LED
display. The three (3) digits immediately following the
H
identifies the current
alarm set point
temperature.
■
Set alarm set point temperature -
Press
up
down
keypad arrow buttons located below the display to increase
or decrease temperature setting.
NOTE: Caution set point
temperature cannot be set higher
than
alarm set point
temperature and
alarm set point
cannot be set lower than
caution set point
temperature.
Page 2
Figure 4
Figure 5
Figure 3
