9
FRCC.ES.010.A4.02
Manual
Controller Installation
• In case of “malfunctions” 3 small LED symbols
will flash on the controller’s screen. Acknowl-
edge with a short press on upper button. Here
some examples below …
A2 Low Suction Pressure Alarm
A17 Safety Input Alarm (DI3: High condensing
/ low suction pressure)
A96 Discharge Gas Temperature High
E20 Condensing Pressure Transmitter Error
E31 Ambient Temperature Sensor Error
E32 Discharge Temperature Sensor Error
E33 Suction Gas Temperature Sensor Error
E39 Evaporating Pressure Transmitter Error
Alarm and Error Messages
Repair
• See wiring diagrams on p. 4-5.
• Disconnect the condensing unit from power supply (turn hardware main switch off)
• Remove wire from controller terminal 22 (safety input DI3) and terminal 25 (room thermostat DI1) and
put them together
• Remove wire from controller terminal 24 (room thermostat DI1) and terminal 11 (compressor supply)
and put them together
• H1, H2, H3 : Remove wire 6* and connect it with terminal bridge for wire 11 and 24.
• H4 : Remove wire U2* from fan speed controller and connect it with wire 11 and 24.
• Remove wire from controller terminal 14 (crankcase heater) and connect it to compressor contactor K2
terminal 22
• Remove wire from controller terminal 12 (supply crankcase heater), extend this wire approximately
40cm and connect it to compressor contactor K2 terminal 21
• Pay attention: Remove the big terminal block from the controller or remove the complete controller
• Connect the condensing unit back to power supply (turn hardware main switch on)
Controller failure
(if the controller fails, there is a
possibility to run the condensing
unit in “manual” mode. Proceed as
follows)
• Turn OFF the main power switch
• While holding simultaneously the up and down button, turn ON the main switch
• Message FAC is displayed, means “FACTORY RESET” restores factory settings
• After a short time message “typ” appears on the screen
• Activate parameter menu and go to parameter o61 (unit type)
• Enter the value 1 to 42 depending on the type of condensing unit (see table 1 on page 3)
• Store the entered value by pressing the middle button of the controller
• After 15 seconds without action the message “ref” appears on the screen
• Activate parameter menu and go to parameter o30 (refrigerant)
• Change the value to 3 (stands for refrigerant R134a), or 17 (R507), or 20 (R407C), or 19 (R404A)
• Store the entered value by pressing the middle button of the controller
• Go to parameter o67 (store values as factory setting)
• Change the value to “on”
• Validate the parameter entered by pressing the middle button of the controller
• After 15 seconds without action the message “OFF” appears on the screen
• Activate parameter menu and go to parameter r12 (main switch)
• Change the value to 1 (condensing unit will start if cooling demand from cold room controller)
• The “Day / Night” function must be reprogrammed too (see chapter Commissioning - Day/Night
- Function)
Factory reset
(all factory parameters can be
restored by the following
procedure)
