ERAP110~170MBYNN
Air-cooled condensing units
4PW22681-1
Operation manual
6
How to enter a menu
■
Digital built-in controller (main menu)
Scroll through the main menu using the
g
and
h
keys to move
the
mark in front of the menu of your choice. Push the
q
key
to enter the selected menu.
■
Digital remote controller
Press the corresponding menu key indicated in "User interface",
paragraph
"Digital remote controller" on page 5
Connection of a remote digital controller to the unit
For a remote digital controller a cable length of up to 600 metres
between the remote digital controller and the unit is allowed. This
gives the opportunity to control the unit from a considerable distance.
Refer to "Cable for remote digital controller" in the installation manual
for cable specifications.
Working with the unit
This chapter deals with the everyday usage of the unit. Here, you will
find how to perform routine tasks, such as:
■
"Setting the language" on page 6
■
"Switching the unit on" on page 6
■
"Consulting actual operational information" on page 6
■
"Resetting the unit" on page 7
Setting the language
If wanted, the operating language can be changed to any of the
following languages: English, German, French, Spanish or Italian.
1
Enter the usersettings menu. Refer to chapter
2
Select the appropriate field using the
q
key.
3
Press
q
to change the operating language until the desired
language is active.
Switching the unit on
1
Press the
J
key on the controller.
Depending on wheter or not a remote ON/OFF switch has been
configured (
refer to the installation manual
), the following
conditions may occur.
When no remote ON/OFF switch is configured, the LED inside
the
J
key lights up and an initialization cycle is started. Once all
the timers have reached zero, the unit starts up.
When a remote ON/OFF switch is configured, the following table
applies:
2
If the condensing unit does not start after a few minutes, refer to
.
Switching the unit off
If no remote on/off switch is configured:
Press the
o
key on the controller.
The LED inside the
o
key goes out.
If a remote on/off switch is configured:
Press the
o
key on the controller or switch the unit off using the
remote on/off switch.
The LED inside the
o
key goes out in the first case and starts
blinking in the second case.
Consulting actual operational information
1
Enter the readout menu. Refer to the chapter
The controller automatically shows the first screen of the
readout menu which provides the following information:
•
or
: manual/automatic control
mode operation. If the automatic control mode is selected, the
controller will indicate the active temperature setpoint. Depending
on the status of the remote contact, setpoint one or setpoint two
is active.
•
: actual temperature of sensor thermostat R4T.
2
Press the
h
key to enter the next screen of the readout menu.
The
screen of the readout menu provides
information concerning the status of the different circuits.
•
: actual status of circuit.
When the circuit is ON, the following status information may
appear.
•
: 40% - this percentage refers to the activated capacity valve of
that specific circuit.
NOTE
Temperature readout tolerance: ±1°C.
Legibility of the alphanumeric display may decrease in
direct sunlight.
NOTE
When a remote digital controller is connected to a
stand-alone unit, the adress of the remote digital
controller has to be set to 2 by means of the DIP-
switches on the back of the remote digital controller.
Refer to the installation manual "Setting the adresses
on the remote digital controller" for setting the adress.
Local key
Remote switch
Unit
o
o
o
o
LED
ON
ON
ON
ON
ON
OFF
OFF
Flashing
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
In case of emergency, switch off the unit by pushing the
emergency stopbutton.
NOTE
"Defining the capacity limitation settings"
and
"Customization in the service menu"
chapter "Setting of the changeable inputs and outputs"
in the installation manual.
NOTE
When a circuit is in a high pressure setback, the
indication of capacity will be flashing. A high pressure
setback is a prevention of load-up or a forced load-
down caused by a too high pressure.
