Carrier 40QQ Series - TEST RUN; Test Run Preparation and Mode Execution

47
TEST RUN
Preparation
Before turning on the power supply, carry out the
following procedure.
1. Using 500V- Megger, check the resista nce between
the terminal block of the power supply and the earth
(grounding). The resistanc e must by 1Mohm or more.
2. If resistance of less than 1Mohm is detected, do not
run the unit.
S When a test run is performed together with air
conditioners, follow the installation manuals of the a ir
conditioners.
S Never press the electromagnetic contactor to forcibly
perform the test run because the protective device does
not work.
Before starting a test run, be sure to set addresses per the
installation manual supplied with the outdoor uni t.
Performing the test mode
1. Push the [ MENU ] button to display the
menu screen.
2. Push and hold the [ MENU ] button and the
button at the same tine to display the “Field
setting menu.”
Fig. 72 - Field Setting Menu
3. Push and hold the buttons for more than 4 seconds.
4. Select “1 Test mode” on the “Field setting menu”
screen, then push the “Set” [
F2 ] but ton.
Pushing the “Yes” [ F1 ] button sets the test mode
and the screen returns to the “Field setting menu” screen.
5. Push [
CANCEL ] twice, the following screen
displays.
Fig. 73 - Field Setting Menu (Test Mode)
6. Push the [
ON/OFF ] button to start the test
mode. The foll owing screen displays.
Fig. 74 - Test Mode
7. The following screen displays when the operation is
stops. Perform test mode in “Cool” or “Heat” mode.
Fig. 75 - Perform Test in Cool or Heat Mode
8. When test mode is finished, push the [
]
[
] button to select “1. Test mode” on the
“Field setting menu” screen, then push the “Set”
[
F2 ] button. The screen (3) appears. Pushing the
“Yes” [
F1 ] button stops the test mode screen and
continues t he normal operation.
Fig. 76 - Stop Test Mode
Alternatively (using a wired remote controller), a forced
test run can be e xecuted in the procedure above
mentioned even if the operation stops by thermo- OFF. In
order to prevent a serial operation, the forced test run is
released after 60 minutes have passed a nd ret urns to the
usual operation.
CAUTION
!
Do not use the forced test run for cases other than the test
run because it applies excessive load to the devices
40QQ