Samsung RHF025EE Series Installation Manual page 23

Trial Operation
 Press the trial operation button.
- Press the trial operation button one more time to turn it off.
- While operating the trial operation,
- Check if the communication between the ventilator and the ERV wired
remote control is normal if they are connected. If the ERV wired remote
control is correctly connected,
- If multiple ventilators are connected, set at least one of the K8 to OFF position
to set as MASTER. Check out the communication to see the display.
DIS1 DIS2
Display SLAVE's MAIN ADDRESS when set as MASTER and display
RMC ADDRESS of itself when set as SLAVE.
Display SLAVE's MAIN ADDRESS when set as MASTER and display
MAIN ADDRESS of itself when set as SLAVE.
Display when set as MASTER, Display
flickers when connected with the ERV wired remote control
What is Constant Air Volume Control

If the dust resistance is under 'A' , the a is over 'B' . Therefore, due to
excessive increased air volume, the noise and energy load are bound to
increase. Control the constant air volume to maintain the 'B' air volume
even in case that the duct resistance is set low.
- Constant air volume control is recommended when the power supply is
stable 200~240V.
- To operate constant air volume control, press K2 button.
- Constant air volume control remains for 20 minutes. After 20 minutes,
it is turned off automatically.
- To stop the constant air volume control, press K2 button again.
You should start over the constant air volume control again.
- While the constant air volume control is operated, remain time and K2
flickers on the display panel.
Error Code Display
Error Code
Indoor temperature sensor (Short/Open)
Outdoor temperature sensor (Short/Open)
CO sensor (Short/Open)
2
Supply Air fan motor error
Exhaust Air fan motor error
Tracking error of MASTER ventilator (After 5 times of tracking, SLAVE ventilators can not be detected.)
System failure by communication error after tracking
Communication error by installing COM1 Dual MASTER
Communication error between the wired remote control and the ventilator
(When the communication is interrupted for 3 minutes)
COM1/COM2 cross installation error
EEPROM error
Damper error (When there is no switch input for 100 seconds while monitoring the damper)
indicate errors due to ERV wired remote control. Refer to the ERV wired remote control installation manual.

is displayed on DIS1.
flickers on the first DIS1.
when set as SLAVE
Explanation
K2 Remaining
operation time
' ' '
Model A (mmAq) B
12
025
17
035
17
050
17
080
18
100
Classifications
Sensor error
Fan error
Communication
error
Others
'
(CMH)
250
350
500
800
1000
23
E-