Samsung Electronics 142
Troubleshooting
■
Vacuum Operation
► Operation to facilitate vacuum to open the valve after the Outdoor Unit repair.
■
Piping Inspection Operation
► Operation mode to check the status of the piping between the MCU and the indoor unit.
► Heat Pump Model : Water temperature is more than 25°C / Cooling Auto Trial Operation start
Water temperature is less than 25°C / Heating Auto Trial Operation start
■
Discharge Mode Operation
► Outdoor power is turned off, the Inverter PBA charging a high DC voltage, so dangerous to touch.
- To replace the PBA, first turn off the power and the begin if DC voltage is discharged.
- If not use the discharge mode, the discharge time of about 15 minutes takes.
- If an error occurs, the discharge mode may not properly run. (Wait until natural discharge.)
- In particular, E 464, E364, power devices may be damaged, therefore do not use the discharge mode.
(Natural discharge until Please wait for at least 15 minutes.)
► Block the Inverter PBA 3-phase relay after connected the power, and through compressor, DC voltage is discharging.
- INV1 and INV2 DC voltage during discharge mode are displayed alternately.
-Discharge mode Display (Rotate the three page display, as shown below.)
'K' 'A' '' ' ‘ DC Link Volt1 ( For example, 120[V] 0 1 2 0 display)
DCLinkVolt2 ( For example, 120[V] 0 1 2 0 display) 'K' 'A' '' ' ‘ DC Link Volt1 …
► Discharge is complete, the power of the Inverter PBA is being blocked, communication function is blocked, E206 will
occur.
► If want operation again after complete discharge mode : Restart after K3 key to Reset or Power Reset.
How to Initiate K1 Tact Switch 7 times~11 times
Compressor OFF
Indoor unit OFF
4Way Valve OFF
Valves Open all valves maximum
Etc. If not turn off the vacuum mode, the start of normal operation is prohibited.
4-2 Service Operation (cont.)
4-2-1 Special Operation (cont.)
To Next Page
Loading...
