Draining - Thermo Scientific ThermoFlex Manual De Instrucciones

Draining

WARNING
DRAIN
CAUTION
Thermo Scientific
Additional Information
Section 8
Before using any fluid or performing maintenance where contact with the
fluid is likely refer to the manufacturer's SDS for handling precautions.
Ensure the fluid is below the safe-handling temperature (below 40°C) before
draining the chiller.

The drain port is located on the rear. There are two different types, depending on the
pump, a ¼" stainless steel FPT with ¼" brass pipe plug or a ¼" MPT Riton fitting.
Position a suitable pan beneath the drain port. The drain pan must be shallow
(under 3½" in height) and have a volume of approximately 3 gallons (6 gallons
for ThermoFlex7500 - 10000). Remove the ¼" Male NPT pipe plug or, using
a / " wrench, open the Riton fitting by turning either counter clock wise. For
9
16
ThermoFlex7500-10000, open the drain valve. This will drain the return line,
reservoir, plate exchanger, and the suction side of the pump.
To drain the discharge side of the pump disconnect the Female NPT outlet
connection on the rear of the chiller.
Note Internally the chiller does not contain a large quantity of fluid on the
discharge side however take care to contain what fluid does drain, a wet-vac can be
employed to minimize the potential for spillage.
If the chiller is equipped with the flow control or pressure relief with flow control
option, open the valve or remove the drain plug in order to drain the discharge
line, see Section 5.
If the chiller is equipped with the anti drainback option, use the controller's
SETTINGS menu to open the valve, see Section 4. Opening the valve allows the
fluid to drain out of the chiller.
Reinstall ¼" Male NPT pipe plug using a sealant suitable for the wetted materials or
close the Riton filling prior to refilling the chiller.
Do not overtighten the fitting.
For ThermoFlex7500-10000, close the drain valve.
Figure 8-1 Drains


Riton connector
or
Brass plug

ThermoFlex 8-1