Mitsubishi Electric HP120TNU-A Service Handbook page 128

[5-1 Dipswitch Functions and Factory Settings ]
1) Unless otherwise specified, leave the switch to OFF where indicated by "-" or where the cells are blank, which may be set to
OFF for a reason.
2) A: Only the switch on OC needs to be set for the setting to be effective.
B: The switches on both the OC and OS need to be set to the same setting for the setting to be effective.
C: The switches on both the OC and OS need to be set.
3) When set to the performance-priority mode, the low-noise mode will be terminated, and the units will operate in the normal
mode.
Cooling: Ambient temperature or the high pressure is high.
Heating: When the outside air temperature is low or when the low pressure is low. Refer to the following page(s). [2-4-7 Var-
ious Control Methods Using the Signal Input/Output Connector on Outdoor Unit]
4) Operation noise is reduced by controlling the compressor frequencies and the rotation speed of the outdoor unit fans.
CN3D needs to be set. Refer to the following page(s). [2-4-7 Various Control Methods Using the Signal Input/Output Connec-
tor on Outdoor Unit]
5) Selectable with the function switches SW6-4 and SW6-5.
ON
SW6-4
OFF
6) Keep SW7-1, -2, and -4 set to OFF during normal operation. Leaving these switches to ON will disable the error-detection
function and can lead to equipment damage.
7) Shaded areas ( ) indicate factory settings.
HWE18220_GB
SW6-5
ON OFF
80 Pa 60 Pa
30 Pa 0 Pa
3
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