En-14
(6) Press
ENTER
switch (SW4) and fix it.
PEAK CUT
(L5)
(L6)
(L7)
0% of rated input ratio
50% of rated input ratio
75% of rated input ratio
100% of rated input ratio
(7) Return to “Operating status display (Normal operation)” by pressing
EXIT
switch
(SW5).
When pressed number is lost during operation, restart from the beginning of operation
procedure after returning to “Operation status display (normal operation)” by pressing
the
EXIT
switch once.
s
d
10. TEST RUN
CAUTION
Always turn on the power 6 hours prior to the start of the operation in order to protect
the compressor.
10.1. Check items before performing the test run
Make sure to perform the test run.
•
Before performing the test run, be sure to check the following points.
•
(1) Is gas leaking?
Check connection of each pipe (flare connection part, brazing part).
(2) Is a breaker installed to the power cable of the outdoor unit?
(3) Has each cable been securely connected to the terminal according to the
specifications?
(4) Are the 3-way valves (gas pipes and liquid pipes) of the outdoor units open?
(5) Has the power been supplied to the unit for at least 6 hours?
(6) Has the necessary local setting been done?
(7) Check insulation resistance of 1 MΩ or more using a 500 V mega tester.
If no problems are found with the above items, perform the test run according to “Test
•
run method”.
If any problems are found, immediately resolve the problem and re-check the items.
•
10.2. Test run method
CAUTION
If the test run is performed for 1 outdoor unit in a group control system installation, the
test run will also be performed for the other units. Therefore, make sure that all of the
units have been installed before starting a test run.
(Group control system installation described in “SPECIAL INSTALLATION METHODS”
in the installation manual of the indoor unit.)
Operate
•
ENTER
(TEST RUN) switch on the display board by the following procedure.
LED display
part
Operation mode
Upper : HEAT
Lower : COOL
ENTER
(TEST RUN) switch
10.2.1. Operating procedures for the test run
(1) Check the 3-way valves (both at the liquid side and gas side) are opened.
(2) Set the operation mode to “COOL” or “HEAT”.
POWER
MODE
ERROR
TEST
RUN
PUMP
DOWN
LOW NOISE
PEAK CUT
(L1)
(L2)
(L3)
(L4)
(L5)
(L6)
(L7)
In the first test run, be sure to set the operation mode to “COOL”.
•
The operation mode cannot be switched between “COOL” and “HEAT” during the test
•
run. To switch the operation mode between “COOL” and “HEAT”, stop the test run,
switch the operation mode, and then start the test run again.
9.2. Peak cut mode (Local work)
Efficient operation while reducing power supply and power consumption with below local
work.
Peak cut function can be effective with contact installation of an additional ON-OFF
•
switch to the CN19 connector on the outdoor control board.
< Example of circuit diagram >
Outdoor unit
control board
Adapter for
external input
CN19
Power supply
Red
White
Black
1
2
3
1
2
3
SW2
Remote control
panel
Local purchase
(1) Make a circuit like above figure using an
“Adapter external input” sold separately.
(2) Set a restriction for below power
consumption (compared with the rated
consumption). Refer to “8. How to
operate display unit” for settings.
SW2...ON
Level 1 : 0% (Stop)
Level 2 : 50%
Level 3 : 75%
Level 4 : 100%
(Shipment condition)
SW2...OFF
Normal operation
9.2.1. Setting for peak cut
SW2
SW3
SW4
SW5
LED display part
(1) Switch to “Local setting mode” by pressing
MODE
switch (SW2) for 3 seconds or
more.
(2) Confirm POWER/MODE LED blinks 9 times, and press
ENTER
switch (SW4).
POWER
MODE
ERROR
TEST
RUN
(L1)
(L2)
(L3)
(L4)
(L5)
(L6)
(L7)
PUMP
DOWN
LOW NOISE
PEAK CUT
Blinks
(9 times)
Sign “ ” : Lights off
(3) Press
SELECT
switch (SW3), and adjust LED display as shown below. (Current
setting is displayed)
TEST
RUN
(L1)
(L2)
(L3)
(L4)
PUMP
DOWN
LOW NOISE
Blink
PEAK CUT
MODE
(4) Press
ENTER
switch (SW4).
TEST
RUN
(L1)
(L2)
(L3)
(L4)
PUMP
DOWN
LOW NOISE
PEAK CUT
MODE
Sign “ ” : Lights on
(5) Press
SELECT
switch (SW3), and adjust LED display as shown in below figure.
PEAK CUT
(L5)
(L6)
(L7)
Blink
Blink
Blink Blink
Blink
0% of rated input ratio
50% of rated input ratio
75% of rated input ratio
100% of rated input ratio
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