8
W A T E R - S O U R C E H E A T P U M P S
ATA11U03
R e v. : 0 9 / 1 6 / 1 3
will be displayed in the set-point location.
To initiate factory defaults, the installer then presses the
mode button until the 10 is flashing. The installer then
presses and holds the down button. While the down
button is held, the 10 will count down from 10 to zero at
a rate of 2 counts per second (5 seconds total). When the
value reaches zero, all display segments are turned on for
five seconds and the factory defaults are restored. If at
any time during the countdown the installer releases the
down button, the countdown terminates and the display
returns to the starting value of 10.
Exiting Configuration Mode
- To exit the configuration
mode, press the fan button.
SYSTEM START-UP AND CHECKOUT
Installer Test Mode
— This thermostat has a built-
in installer test capability. It allows easy operation of
equipment without delays or set point adjustments to
force heating or cooling. To enter installer test mode,
press and hold the fan button for 15 seconds (after 10
seconds installer configuration is entered; a continuous
15 seconds and installer test is entered). At the start of
installer test, the mode is Off, the fan is “fan auto” and
the set point display displays “InS.”
NOTE: Unit must be powered up and CXM/DXM
in test mode to disable unit timers or compressor
not energized for more than 5 minutes.
The mode button is used to change the system operating
mode to test the heating and cooling equipment. Auto
mode is not available during installer test.
When the mode is set to heat, “H” is displayed, heating
is energized for 180 seconds. During the installer test
operation, the “on” icon is displayed.
At the end of the equipment test cycle the mode returns to
OFF.
The LCD display counts down the time remaining
(in seconds, from 180 to 0) for each stage when the
equipment is energized. See Fig. 5.
The same procedure is repeated for the cool mode. “C”
is displayed when cooling is active.
The test of a heating or cooling cycle can be terminated
before the timer counts down to zero by pressing the
mode button.
Pressing the fan button alternates the fan selection
between fan auto and fan on and the fan output follows
accordingly. There is no timer associated with the installer
testing of the fan operation.
Terminating Installer Test
— After 15 minutes of no
button presses by the installer, installer test is terminated.
Pressing the up button, down button, or cycling
thermostat power at any time during installer test
terminates the installer test and returns the thermostat to
normal operation.
Figure 5: Installer Test Mode
Checklist
— The following installer checklist should be
performed after completing installation:
1. Run equipment through several heating and cooling
cycles to ensure proper operation. To operate the
thermostat in its normal operating mode, consult the
User Operating Manual.
2. If the equipment is to be left in operation, the
set points and operating mode must be properly
selected.
3. Put away tools and instruments and clean up debris.
4. Review and leave this manual and User Operating
Manual with owner.
