ESIE16-03B | Part 5. Appendix 5.1. Field setting
SA R32 Sky-Air RZAG-L
22/08/16 | Version 1.1 Page 103
5.1.2. Outdoor unit
5.1.2.1. Retrieve field settings OU mode 2
5.1.2.1.1 Location of DIP Switch and BS Button
Various settings are available by using the DIP switches and the BS buttons on the PCB.
*1. Factory settings: “OFF” and “HEAT”
.
5.1.2.1.2 Field Setting for Outdoor Unit
Setting by BS Buttons
With “Setting mode 1”, “Setting mode 2” and “Monitor mode”, various settings and data can be checked.
1. Setting mode 1
The initial status (normal operation) is “Setting mode 1”, This mode indicates operating status - “TEST (test operation)”, “HWL (error)”, “L.N.O.P (night time quiet operation)” or “DEMAND
(demand operation)”.
2. Setting mode 2
Each operating status can be modified.
3. Monitor mode
This mode indicates “oil return operation”, “outdoor unit class”, “contents of retry”, “contents of error”, “causes of stepping-down operation”, etc.
Setting Mode 1
In this mode, the following conditions can be checked:
Display
Function or Operating Procedure
Symbol Name
Display
Lamp
H1P MODE During “Setting mode 1”, the lamp is
OFF (h).
During “Monitor mode”, the lamp
blinks (l).
H2P TEST During test operation in “Setting
mode 1”, the lamp is ON (k).
During “Monitor mode”, the lamp is
OFF (h).
H3P HWL When an error occurs during “Setting
mode 1”, the lamp turns ON (k).
H4P L.N.O.P During “Setting mode 1”, low noise
level is displayed.
During “Monitor mode”, various com-
binations of the lamp indicate the fol-
lowing conditions:
• Indication of oil return operation
• Indication of outdoor unit class
• Indication of error code (the latest
and up to 2 cycles before)
• Indication of causes of
stepping-down
H5P
H6P DEMAND During “Setting mode 1”, demand
level is displayed.
H7P
BS But-
ton
BS1 MODE Used to change “Setting mode”.
BS2 SET Used to change “Setting item” and “Setting condition”.
BS3 RETURN Used to decide “Setting item” and “Setting condition”.
BS4 PUMP DOWN Used for pump down operation, forced oil return operation and forced defrost
operation.
Dip
Switch
DS1-1 ON EMERGENCY Switch from “OFF” to “ON” for emergency operation (forced operation).
OFF(*1)
DS1-2 COOL Maintain “HEAT” in case of heating in emergency operation, and switch to
“COOL” in case of cooling in emergency operation.
HEAT(*1)
INFORMATION
BS button (Pump down / Forced defrosting)
Pressing the BS button forcibly operates the air conditioner in the cooling mode.
1. To conduct a pump-down operation (sending refrigerant to outdoor unit), press the BS button to forcibly operate the equipment in the cooling mode, then operate the unit for about
1 minute to stabilize the system. After stabilizing system, close the liquid pipe stop valve on the outdoor unit, and after the pressure decreases and the low pressure sensor
activates, close the gas pipe stop valve.
2. Forced defrost
To activate the defrost operation during the heating operation, press the BS button. This will activate the forced defrost operation (cooling operation).
When the defrost cancel conditions are met, the equipment automatically switches off the defrost operation.
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