INSTALLATION INSTRUCTIONS
The chiller should be installed in a well-
ventilated area away from any direct heat
source. If the chiller is located in a confined
space with insufficient ventilation the
performance of the unit will be drastically
reduced.
To ensure correct operation, the ambient
temperature of the cabinet or enclosure
containing the chiller should not exceed 35°C.
The location chosen for installation of the
chiller MUST:
1. Be installed on a flat stable surface capable of
carrying the weight of the chiller and the
water in the cooling circuit.
2. Allow sufficient room above the chiller for
removal of the air filter, or allow for the chiller
to be easily slid forward for filter removal
3. Allow free movement of air through the
chiller and out of any cabinet or enclosure.
4. If the chiller is to be placed inside a cabinet it
should have adequate ventilation on the
front (inlet) and back (outlet) walls/doors
(assuming the chiller is positioned so that the
control panel is at the front of the cabinet)
and be no closer than 50mm to either the
front or back wall.
5. As a guide, the inlet and outlet ventilation
panels should be the same size as the
ventilation panel on the front of the chiller
(260x120mm).
6. If a ventilation panel cannot be placed on
either the front or back wall then the chiller
should be no closer than 400mm to this wall
with the ventilation panel on either a side
wall or the cabinet base located in the
400mm of free space.
ASSEMBLY
Carefully remove the chiller unit from its
protective packaging and place on a flat stable
surface near the aquarium.
To fit the elbow joints, unscrew the ring nuts
from the chiller and remove the protective
stopper and o-ring. Remove the elbows from
the protective packaging and slide the ring nut
(thread outwards) and o-ring up the plain end
of the elbow joint. Push the plain end of the
elbow joint fully into the threaded inlet (or
outlet) of the chiller and firmly tighten the
locking ring.
The chiller can now be placed in its chosen
location taking care that there is sufficient
access to allow installation of the
corresponding piping and electrical connection.
To connect the aquarium tubing (internal
diameter 16mm – 1”, thickness 3mm), push
Model Number
AT250
AT650
Power
250W / 1/8hp
650W / 1/3hp
Btu/H
1310
2620
Weight
16kg
19kg
Supply
230/240V-50Hz
Refrigerant (CFC Free)
R134a
Water inlet/outlet
16mm-1”
Suggested Flow Rate*
500 l/h minimum
Dimensions
250mm (W), 450mm (D) 405mm (H)
* This should be the actual flow rate in the
cooling system, not the flow rate claimed
by the pump manufacturer, which can
typically be 2 to 3 times higher than the
actual flow rate in the system.
Technical Data
UK
3
Installation and Maintenance Instructions
Summary of Contents for AT250
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