Installation manual
5
ERAP110~170MBYNN
Air-cooled condensing units
4PW22680-1E
2
If you operate the digital controller from a distance with a cable
as specified above, close the hole in the switch box cover with
the supplied polycarbonate plate.
Setting the adresses on the remote digital controller
When a remote digital controller is used, the adress has to be set by
means of DIP-switches according to the drawing below:
Where to find the DIP-switches of the remote digital controller
B
EFORE
STARTING
I do confirm having executed and checked all the above
mentioned items.
Keep for future reference.
C
USTOMIZATION
IN
THE
SERVICE
MENU
To change a setting in the service menu:
1
Enter the usersettings menu as indicated in the operation
manual and press the
h
key to go to the last screen to enter the
service menu (this is only possible if the unit is off).
2
Enter the correct password using the
h
and
g
keys. The
password can be found in the service manual.
3
Press
q
to confirm the password and enter the service menu.
4
Go to the screen which contains the parameter to be modified by
using the
h
and
g
keys.
5
Position the cursor behind the parameter to be modified using
the
q
key.
6
Select the appropriate setting using the
h
and
g
keys.
7
Press
q
to confirm the modification. When the modification has
been confirmed, the cursor switches to the next parameter
which can now be configured.
8
Place the cursor in the top left corner of the screen when you
are finished changing the parameters on this screen.
9
Repeat from instruction 4 onwards to modify other parameters.
Setting of the minimum temperature
It is possible to change the minimum allowed temperature
(
) in the service menu.
In case of a water cooled evaporator:
■
Make sure that sufficient glycol is added to the water system
according to the table.
■
Make sure that the low pressure safety is lowered according to
the table.
Setting the password for safety reset
To avoid resetting of safeties by unqualified persons, the user
password is asked by default when resetting a safety.
This password however can be changed to
or to
.
Remote digital controller address
To avoid damage to the controllers liquid crystals during
winter time, do not shut off the main power supply.
NOTE
After connecting the unit to the evaporating air unit, the
unit should not be started, not even for a very short
period of time, before the following pre-commissioning
checklist is filled out completely.
tick
✓
when
checked
standard steps to go through before starting the unit
■
1
Check for external damage.
■
2
Open all shut-off valves indicated by a red label: "OPEN THIS
VALVE BEFORE OPERATION". (Open the liquid line, discharge
and suction (if provided) stop valves completely.)
■
3
Install main fuses, earth leak detector and mainswitch.
Recommended fuses: aM according to IEC standard 269-2.
Refer to the wiring diagram for size.
■
4
Supply the main voltage and check if it is within the allowable
±10% limits of the nameplate rating.
The electrical main power supply should be arranged so, that
it can be switched on or off independently of the electrical
supply to other items of the plant and equipment in general.
Refer to the wiring diagram, terminals L1, L2 and L3.
■
5
Connect the air- or waterflow contact, so that the unit can only
come in operation when the fan or pump is running and the air-
waterflow is sufficient.
■
6
Check the oil level in the compressors.
■
7
Connect the optional field wiring for remote indication.
NOTE
■
It is necessary to read the operation manual
delivered with the unit before operating the unit. It
will contribute to understand the operation of the
unit and its electronic controller.
■
Close all switch box doors after installation of the unit.
Date
Sign
1 2 3 4 5 6
OFF
All customized settings must be done by a licensed
technician.
minimum outlet water (
)
2°C
0°C
–5°C
–10°C
Weight of ethylene glycol
(%)
10
20
30
40
Weight of propylene glycol (%)
15
25
35
40
Low pressure setting
(bar)
1.3
1.1
0.6
0.2
Improper setting of the minimum outlet water temperature
can result in severe damage of the equipment.
NOTE
Since inadequate resetting of safeties can damage the
machine, it is advised to keep the default setting of
.
