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1. Various settings available via the outdoor unit (Existing pipe, Maximum frequency
change, Snow guard fan control, Cooling only setup, etc.)
(1) Service switch setting
Various settings can be made using the service switches
[Method of operation]
1) Ensure the LED display shows the initial status. If not then ensure to restore the initial status.
2) Press SW01 for at least 5 seconds. D804 will start slowly flashing.
3) Push SW01 several times until reaching the required LED display function.
4) Push SW01 until D805 starts rapidly flashing.
5) Press and hold down SW02 for at least 5 seconds. D804 will start slowly flashing and D805 will light up,
and the various settings will take effect.
6) To make more settings repeat steps 3) to 5).
7) To invalidate any settings made in steps 1 to 3 press SW01 to turn off D805.
8) Press and hold down SW02 for at least 5 seconds. D804 will start to slowly flash and D805 will turn off
and the various settings will be invalidated.
∗
If any unclear point arises during an operation, press and hold down SW01 and SW02 at the same time
for at least 5 seconds to return to step 1).
Functions
LED display
Control content
Existing
pipe setting
D800 D801 D802 D803 D804 Activate when existing Ø19.1 piping is used. Note that in
this case, depending on the outdoor and indoor air
temperature, the heating capacity may drop.
Cooling only
setting
D800 D801 D802 D803 D804 Cooling only setting. (Can also be changed using the DN
code [0F] on the wired remote control).
Snow guard
fan control
D800 D801 D802 D803 D804 The snow guard fan control enables snow to be diverted
from the path of the fan and heat exchanger, thereby
protecting the fan motor. And even when the compressor
is not in use but the external temperature is less than 4˚C
ensure the outdoor fan is going using W5.
Maximum
frequency
change
D800
Model
GM224
GM280
D801 D802 D803 D804 Enable this if you wish to lower the maximum compressor
frequency. It will lower the maximum frequency during
both cooling and heating. Note however it does reduce
the maximum capacity.
Maximum compressor frequency (rps)
Cooling Heating
Standard status
78.0
88.8
When setting is valid
71.0
71.0
Cooling Heating
91.2
105.0
84.0
84.0
: Go ON : Go OFF : Flash (5 times/sec)
