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2. Dip switch functions
Switch
Function
1
T
H0 thermistor selection
2
Operation after power recovery *1
3
4
Operation after power recovery
5
SW1
6
7
Test-run mode
8
Error history deleted
Effective only when SW1-7 is
9
set to ON and only on the HEX
models.
10
Brine mode *2
For self-diagnosis/operation
SW2
1-10
monitoring
1
Capacity setting (HEX unit only) 4HP
2
Service LED display selection
3
4
Cumulative compressor opera-
5
tion time is deleted.
SW3
6
Pump interlock operation
7
8
9
10
1
2
Use to change preset temperature
3
range for the Heating ECO mode.
Use to change preset temperature
4
range for the Anti-freeze mode.
SW4
5
6
7
8
9
10
Enabling/disabling ACCT sensor
1
error detection
2
SW5
3
4
*1 Valid only when SW1-4 is set to OFF
*2 Refer to P60.
*3 The following changes can be made by changing the setting of the switch from OFF to ON.
0.5
1
0.5
Water inlet thermistor TH6
-
Remains stopped
Depends on the SW1-3 setting
-
-
OFF
Normal
Heating
Ineffective
Display in Centigrade
-
-
Normal
During Thermo-ON or
Thermo-OFF
-
-
Heating Thermo OFF differential change *3
-
Booster : Ineffective
HEX : Ineffective
Booster : Ineffective
HEX : Ineffective
-
-
-
-
-
-
Error detection enabled
-
-
-
2
0.5
3
0.5
Function according to switch setting
OFF
Water outlet thermistor TH8 Before power on
-
Auto recovery (to the status
before power failure)
Forced to operate
-
-
ON
Deleted
Cooling
Effective
-
-
8HP (HEX unit only)
Display in Fahrenheit
-
-
Deleted
During Thermo-ON only
-
-
-
Do not change from factory setting.
Do not change from factory setting.
Booster : 30°C to 50°C
HEX : 30°C to 50°C
Booster : 10°C to 45°C
HEX : 10°C to 45°C
-
-
-
-
-
-
Error detection disable
(No load operation is possible)
-
-
-
4
0.5
5
0.5
- 83 -
Switch setting timing
ON
-
Before power on
Before power on
-
-
Any time
Any time
Any time
Any time
Any t ime
Before power on
Any time
-
-
Any time
Any time
-
-
Any time
-
Before power on
Before power on
-
-
-
-
-
-
Any time
-
-
-
6
0.5
7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.5
8
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