H50/150 Smart – User Manual
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connections.
Connect the ball valve to “DRAIN’’ position of the chiller and turn ball valve off.
Never connect the fitting to the tap water supply or any water pressure source.
It is important to keep the distance between the unit and the instrument to be cooled as short
as possible. Tubing should be straight and without bends. If diameter reductions must be made,
they should be made on the inlet and outlet of the instrument to be cooled, not on the chiller.
Smart H150
The liquid plumbing connections are located on the rear of the unit and labeled “SUPPLY” and
“RETURN”. The connections are 1/2-inch Female Pipe Thread. Units with 1/2-inch fittings are
supplied with 1/2-inch barbed adapters.
Remove the plastic protective caps from both plumbing connections. Install the barbed
adapters to these connections.
Connect the fitting “SUPPLY” to the hose feeding the inlet of the instrument to be cooled.
Connect the fitting “RETURN” to the hose from the outlet of the instrument to be cooled. Clamp
all connections. Connect the ball valve to “DRAIN’’ position of the chiller and turn ball valve off.
Never connect the fitting to the tap water supply or any water pressure source.
It is important to keep the distance between the unit and the instrument to be cooled as short
as possible. Tubing should be straight and without bends. If diameter reductions must be made,
they should be made on the inlet and outlet of the instrument to be cooled, not on the chiller.
When fittings have to be changed or the chiller is not used for a long period, be sure to drain all
liquid out of the unit. Shut down the unit at first, then put a cup on the ground and disconnect
the fitting from the instrument cooled then let the fluid in the tank flow out into the cup and
disconnect the fitting on the chiller. Before positioning the unit in the storage be sure the drain
tap is closed.
3.4 FLUIDS
Never use flammable or corrosive fluids with this unit. Do not use automotive antifreeze.
Commercial antifreeze contains silicates that can damage the pump seals. The use of
automotive antifreeze will void the warranty.
Fluids should be pure and contain no impurities such as grains. Otherwise, the impurities may
damage the pump. The use of unpurged fluids will void the warranty. Fluids should be replaced
every 6 months.
Whenever fluid is replaced, please kindly add water cleanser into fluid to keep cleaning. For
H50-500/Smart H150-1000N/Smart H150-1000NLT/Smart H150-2100NS/
Smart H150-2100NSLT/Smart H150-3000NS, the volume is 2~3 drops.
For H150-5000/H150-7000, the volume is 5~6 drops.
Note: please use mixture liquids of water 50% and glycol 50% when setpoint the is lower
than 5
℃
. Malfunctions caused by using incorrect cooling fluids will void the warranty.
