Service/maintenance
OPERATION MANUAL
Chapter 7
Unistat® T300 Series
Liability for errors and misprints excluded.
V1.2.0en/12.05.15//14.06
80
7.3.3
Clean hat-type strainer (dirt trap) (water-cooled temperature control unit)
Building side shut-off valves are not closed
DAMAGE BY ROOM FLOODING
Close the building’s shut-off valves in the cooling water supply and return lines.
For table-top models, place a collection container below the
>Cooling water drain<
[15] (see
wiring diagram page 89, section
).
The strainer at the cooling water inlet must be inspected and cleaned on a regular basis, depend-
ing on water quality.
PROCEDURE
Table-top models:
Switch off the temperature control unit. Do this by turning the
>Mains isolator<
[36] to “0”!
Disconnect the temperature control unit from the current supply.
Close the customer’s shut-off valves in the cooling water supply and return lines.
Place the collecting container below the
>Cooling water inlet<
[13].
Remove the cooling water supply line and take out the hat-type strainer for inspection and
cleaning.
Following inspection/cleaning, reinsert the hat-type strainer and fasten the cooling water supply
line.
Remove the collecting container from below the
>Cooling water inlet<
[13].
Open the customer’s shut-off valves in the cooling water supply and return lines.
Connect the temperature control unit to the power supply.
Switch the temperature control unit on.
PROCEDURE
Free-standing models:
Switch off the temperature control unit. Do this by turning the
>Mains isolator<
[36] to “0”!
Disconnect the temperature control unit from the current supply.
Close the customer’s shut-off valves in the cooling water supply and return lines.
Remove the panel from around the
>Cooling water inlet<
[13] and
>Cooling water outlet<
[14].
Information: Located immediately behind the
>Cooling water inlet<
[13] is the dirt trap.
Carefully detach the cover (hexagonal).
Remove and clean the metal strainer located below.
Re-insert the metal strainer after cleaning work.
Carefully fasten the cover (hexagonal).
Re-mount the panel around the
>Cooling water inlet<
[13] and
>Cooling water outlet<
[14].
Open the customer’s shut-off valves in the cooling water supply and return lines.
Connect the temperature control unit to the power supply.
Switch the temperature control unit on.
We also provide service training. Please contact the Customer Support. The telephone number can
be found on page 88, section
»Phone number and company address«
.
7.3.4
Empty the drip tray
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.