FAQ
s :
Q
:
Why is there no digital display on the controller?
A
:
a. Make sure the power cord is plugged into a working electrical receptacle
b. The fuse may be blown; it is located at the rear of the chiller.
Q: What size fuse do I need to replace a blown fuse?
A
: There are two types of fuses used for Aquarium Series Chillers
1.
Chillers with a hardwired power cord and external black fuse cap
a.
DBA-075 – 10 Amp / 250 Volt Ceramic Fuse / Item No: DB-F2-10
b.
DBA-150 - 10 Amp / 250 Volt Ceramic Fuse / Item No: DB-F2-10
c.
DBE-200 - 15 Amp / 250 Volt Ceramic Fuse / Item No: DB-F2-15
d.
DBM-250 - 15 Amp / 250 Volt Ceramic Fuse / Item No: DB-F2-15
2.
Chillers with a disconnect power cord which has an ON/OFF switch
a.
DBA-075 – 10 Amp / 250 Volt Glass Fuse / Item No: DB-F-10
b.
DBA-150 - 10 Amp / 250 Volt Glass Fuse / Item No: DB-F-10
c.
DBE-200 - 16 Amp / 250 Volt Glass Fuse / Item No: DB-F-16
d.
DBM-250 – 16 Amp / 250 Volt Glass Fuse / Item No: DB-F-16
Q: Why does my chiller take over an hour to drop the temperature?
A:
Aquarium chillers are designed to gradually drop the water temperature, rapid temperature
drops can adversely affect any living organism. You should be more concerned with the average
cycle times of the chiller within a 24 hour period.
Example
:
A properly sized chiller should only cycle on 15-20 minutes an hour.
So in a 24 hour period the chiller would be running a total of 6-8 hours. It may be running for a 1.5
hours but it may stay off for 2-3 hours before the next cycle.
Q: What is the optimal flow rate for my chiller?
A:
a.
DBA-075 (1/10 Hp) requires min/max of 240-960 gph
b.
DBA-150 (1/5 Hp) requires min/max of 480/1320 gph
c.
DBE-200 (1/4 Hp) requires min/max of 480-1920 gph
d.
DBM-250 (1/3 Hp) requires min/max of 480-2400 gph
Q: What can I do to improve the efficiency of the chiller?
A:
Regular maintenance is key for long term performance. Try these simple tips for tuning up
your chiller:
a. Clean the front condenser fins to allow better airflow.
b. Increase the flow rate through the chiller. It is better to error on more flow than a slower flow
rate to increase turnover of the warm water.
c. Back flush the chiller to prevent calcium build up on the heat exchanger will slows down the
cooling performance.
Q: How do you Back Flush a chiller?
