Interval of Output Signal Time for Load-up 2 and
Load-down Mode Setting Switch:
DSW5-9, DSW5-10
60 seconds is factory default: DSW5-9 ON; DSW5-10
ON.
The settings for DSW5-9, DSW5-10 are as follows:
Setting of Compressor Cycling Protection Start:
DSW2-1, DSW2-2
This switch sets the compressor starting time delay. The
compressor will start after this time.
3 minutes is factory default: DSW2-1 OFF; DSW2-2
OFF.
The settings for DSW2-1 and DSW2-2 are as follows:
Manual Set Switch A: DSW3-1, DSW3-2,
This switch allows the compressors to be electrically
isolated for maintenance purpoes.
Switches DSW3-1 is for No.1 compressor, "DSW3-2" is
for No.2 compressor. DSW3-3 to DSW3-10 are not used
and should be set to OFF.
The settings for DSW3-1, DSW3-2 are as follows:
Manual Set Switch A: DSW3-8, DSW3-9, DSW3-10
This switch is used to set the chiller ID when using more
than one chiller with a remote control system (HARC,
ISN etc.)
Manual Set Switch B: DSW4-1
This switch defines if the unit operates in cooling mode
only or if the optional heat pump mode is enabled.
The setting for DSW4-1 is as follows:
Manual Set Switch B: DSW4-4
This switch defines the unit chilled liquid as either water
or brine/glycol .
The setting for DSW4-4 is as follows:
Manual Set Switch B: DSW4-2, 4-6 and 4-7
These switches must be set to ON.
Manual Set Switch B: DSW4-3, 4-5 and 4-8
These switches must be set to OFF.
Manual Set Switch B: DSW4-9, DSW4-10
This switch identifies the compressor size.
The settings for DSW4-9, DSW4-10 are as follows:
6-11
035-21786-100 Rev. 1 (0909)
DSW5 910910910910
Setting On On On Off Off On Off Off
Secs 60 90 120 30
Minutes 12
0.5 ON ON
3 OFF OFF
6 ON OFF
10 OFF ON
DSW2
DSW3
Setting
Model
On Off On On
1 Compressor 2 Compressors
1212
DSW3 891089108910
Setting Off Off Off On Off Off Off On Off
Unit ID
DSW3 891089108910
Setting On On Off Off Off On On Off On
Unit ID
DSW3 89108910
Setting OffOnOnOnOnOn
Unit ID
456
78
123
DSW4
Setting
Mode
1
Off
Cooling OnlyHeat pump enabled
On
1
DSW4
Setting
Mode
On
Water
44
On
Brine/Glycol
DSW4 910910910910
Setting Off On On Off On On Off Off
Size 40hp 50hp 60hp 80hp
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