6
For example:
Case 1:
The chiller is in intelligent control mode and requires the water to be between 77–88°F
(25–31°C). With the ambient room temperature kept constant, the water temperature will remain
5°F (3°C) lower with a deviation of ±0.9°F (±0.5°C). An alarm will sound if the water temperature
is 18°F (10°C) higher or lower than this target.
Case 2:
The chiller is in constant temperature mode and requires the water to be at 82°F (28°C)
with a deviation of ±3.6°F (±2°C). An alarm will sound if the water temperature is 9.6°F (5°C)
higher than this target or if the water is 18°F (10°C) lower than this target.
Case 3:
The chiller is in constant temperature mode and requires the water to be at 77°F (25°C)
with a deviation of ±1.8°F (±1°C). An alarm will sound if the water temperature goes above 86°F
(30°C) or below 50°F (10°C).
Restore Factory Settings
While the chiller is in standby mode, press and hold ▲ and ▼ until “rE” is displayed. All settings
have now been returned to factory defaults.
Code Item Defaults
Value in
Case 1
Value in
Case 2
Value in
Case 3
F0 Water Temperature 25 28 25
F1 Temperature Dierence −2 -3
F2 Cooling Hysteresis 0.8 0.5 2.0 1.0
F3 Control Mode 1 1 0 0
F4 Overheated Water Alarm 10 10 5 4
F5 Overchilled Water Alarm 15 10 10 14
F6 Overheated Room Alarm 45 45 45 45
F7 Password 8 8 8 8
F8 Highest Allowed Water Temperature 30 31 30 30
F9 Lowest Allowed Water Temperature 20 25 5 5
Maintenance
• Regularly clean the air lter of dust and debris with a soft cloth or vacuum.
• Periodically clean the inside of the inlet and outlet hoses to ensure no clogs form. To do this,
soak the hoses in a mild detergent solution with a low concentration of biocide (e.g. bleach)
for 8–24 hours. Rinse the hoses with tap water before reinstalling them.
• Periodically clean the water tank with a mild detergent solution with a low concentration of
biocide (e.g. bleach) to prevent and remove scaling.
• Disconnect the chiller from its power supply and drain all water before transporting it or
placing it in storage.