Huber Pilot ONE Unistat T300 Series, Operation Manual

Page: 82 / 90

Service/maintenance
OPERATION MANUAL Chapter 7
Unistat® T300 Series
Liability for errors and misprints excluded. V1.2.0en/12.05.15//14.06
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7.4.3 Cleaning the thermal fluid circuit
Non-compliance with the safety data sheet for the thermal fluid to be used
INJURIES

Risk of injury to the eyes, skin, respiratory tract.

The safety data sheet for the thermal fluid to be used must be read prior to use and its con-
tents respected.

Observe the local regulations/work instructions.

Wear your personnel protective equipment (e.g. temperature-resistant safety gloves, safety
goggles, safety footwear).

Danger of slipping through contamination of floor and work area.
Using the wrong cleaning agents for cleaning the thermal fluid circuit
DAMAGE CAUSED BY LEAKS IN THE INTERNAL THERMAL FLUID CIRCUIT

Do not use acetone as a cleaning agent.

Use only suitable cleaning agents.
The inner components of the temperature control unit must be dried out Need to avoid boiling
retardation during future uses (e.g. use of a silicone oil at temperatures above about 100 °C).
PROCEDURE

Drain the temperature control unit as described on page 61 in section »Draining externally
closed applications« or on page 64 in section »Draining externally open applications« .
Residual thermal fluid can remain in the pump chamber and the internal lines after draining. Leave
the temperature control unit with open valves for a while.

Leave the drain hose mounted to the >Drain< [8].

Check the fill level in the collecting container at the end of the drain hose.

Close the drain valves on the temperature control unit by turning t hem clockwise (turn 90° right
as far as it will go).

Connect the >Circulation flow< [1] with the >Circulation return< [2] to the temperature control
using a bypass hose.
If the application used by you (externally closed) is also dirty, perform the following steps without
attaching a short circuit hose. In this case, you leave your external closed application connected to
the temperature control unit. Thus clean the temperature control unit and your application the
same time.
When using Huber thermal fluids to clean the thermal fluid circuit, use ethanol .
PROCEDURE

Fill the system (minimum fill level) with the cleaning agent. The description can be found on page
58 in section »Filling and venting externally closed application« .

Vent the system as described on page 58 in section »Filling and venting externally closed appli-
cation« .

Go to the “Categories Menu”.

Tap on the category “Temperature Control”.

Tap on the category “Start/Stop”.

Tap on the dialog entry “Start circulation”.

Confirm your choice by tapping on “OK”. The length of circulation depends on the level of soiling.

Tap on the category “Start/Stop”.

Tap on the dialog entry “Stop circulation”.

Confirm your choice by tapping on “OK”. The circulation is stopped.
Example: Connecting a
short circuit hose