Check Run Check Items And Procedure - Fujitsu AUYG07LVLA Design & Technical Manual

6-2.

CHECK RUN CHECK ITEMS AND PROCEDURE

Use the following procedure to perform the Check run.
Check Item
1. Turn on 1.1 Check he power is on to the outdoor unit
power communi- connected branch boxes, and indoor units.
cations
uto atica
turned on.
he deter ination ta es about
(During this time, the outdoor unit 7 seg.
displays are all lit.)
he deter ination is pass i a
of the outdoor unit turn off.
1.2 Compressor he power is on to the outdoor unit
preheat connected branch boxes, and indoor units.
operation
compressor starts automatically. (Conduct
preheating for at least 12 hours.)
onfir
displays are off. (If there is an indoor unit,
branch box, or outdoor unit error, preheating
of the compressor will not be performed.)
2. Check run 2.1 Check the ontinue pressing the
number of more than 3 seconds to begin checking the
connected number of connected units.
units
in the outdoor unit 7 seg. display, check if the
number of installed branch boxes and indoor
units has been detected correctly.
<All off state>
2.2 Check ontinue pressing the
connected more than 3 seconds to begin operation to
positions check the connected positions.
he deter ination ta es about
this time the outdoor unit 7 seg. display will
show "C.rUn".)
he deter ination is pass when
displayed on the outdoor unit 7 seg. display.
Ex) mode: HEAT, 6 indoor units
<Check run start>
Check run has been completed. Please
conduct the test run.
Stopping Check run
Perform Check run again.
Procedure
deter ined a ter the power is
inutes.
seg. disp a s
<All lit state> <All off state>
LED981 LED982
LED981 LED982
POWER ERROR POWER ERROR
MODE MODE
LED961 LED962
LED961 LED962
ter the power is turned on preheating o the
that a the outdoor unit seg.
button or
ter the nu ber o connected units is shown
<Number of units display>
LED981 LED982
LED981 LED982
POWER ERROR
POWER ERROR
MODE MODE
LED961 LED962 LED961 LED962
Number of Number of
Branch boxes Indoor units
button or
hour.
nd is
<Check run
ends normally>
LED981 LED982 LED981 LED982
POWER ERROR POWER ERROR
MODE
MODE
LED961 LED962 LED961 LED962
H: HEAT, C: COOL
hen ou want to stop hec run be ore it is co p eted press the
hen hec run has been stopped be ore it is co p eted the s ste
When an Error Occurs
When an error occurred
he nu ber o error is auto atica
he error codes can be chec ed using the
ter chec ing the error code turn o the power and reso e the prob e .
[Ex] When a branch box error and serial signal error occurred (error during
operation).
<Displays the number of error>
LED981 LED982 LED981
POWER ERROR
POWER
MODE
MODE
LED961
LED961 LED962
[Caution]
If the power has been off for more than 6 hours, preheat the compressor for
at least 12 hours before conducting the Check run.
When an error occurred
he nu ber o error is auto atica
he error codes can be chec ed using the
ter chec ing the error code turn o the power and reso e the prob e .
urn the power on again.
If the number of displayed units does not match the number of
installed units
If the number of units displayed by the outdoor unit indicators does not
match the number of installed branch boxes and indoor units, recheck the
wiring work and perform the Check run again.
Wiring Mistake Case 1
Connection destination does not
match
uring
LED981 LED982
POWER ERROR
MODE
LED961 LED962
[Display Explanation]
The wire connected to Terminal A
of Branch box1 (left 2-digit) must be
rewired to Terminal B of Branch box
3 (right 2-digit).
[Caution]
The displayed wiring mistake
positions are displayed by the
indicators in order. Make a note of
all of them before turning off the
power and rewiring.
State in which automatic determination cannot be conducted
LED961
This shows the state in which automatic determination of whether there
are error positions during operation for the 2.2 Check connected positions
cannot be conducted.
In this case, press the MODE/EXIT button to end the Check run.
Since automatic determination is not possible, visually inspect the wiring
and piping and then conduct the test run.
is not in a state where it wi run nor a .
- (06 - 98) -
disp a ed.
button.
<Displays error code>
The error code switches each time
the SELECT button is pressed.
Press ENTER
button
LED982
LED981 LED982
ERROR POWER ERROR
MODE
LED962
LED961 LED962 LED961
disp a ed.
button.
Wiring Mistake Case 2
Problem with the wiring or piping
connection
LED981 LED982
POWER ERROR
MODE
or
LED961 LED962
LED961
[Display Explanation]
Recheck how the wiring and piping
are installed.
(The number of wires and pipes does
not match.)
LED981 LED982
POWER ERROR
MODE
LED962
is displayed
button whi e .r n is disp a ed.
6. SYSTEM DESIGN
LED981 LED982
POWER ERROR
MODE
LED962
LED981 LED982
POWER ERROR
MODE
LED962