Huber Pilot ONE Unistat T3*0, Operation Manual

Page: 31 / 100

Commissioning
Chapter 2 OPERATION MANUAL
V2.4.0en/22.07.20//17.12
Unistat® T300 Series
31
Preparing the temperature control unit with water cooling:
In the event of outdoor installation, the responsible body must ensure that the cooling water
supply and return lines are laid frost-protected. The cooling water temperature must not fall below
3 °C. At ambient temperatures below 3 °C, the cooling water supply must be heated.
The minimum pressure differential in the cooling water circuit and the recommended cooling
water inlet temperature can be found on the data sheet (from page 99 in Section »Annex« ).
The illustration “connection diagram” can be found on page 99 in section »Annex« .
PROCEDURE

Close (if fitted) the >Cooling water drain< [15].

Connect the >Cooling water outlet< [14] to the water return flow. A seal must be used.

Insert the suction strainer (dirt trap) into the >Cooling water return< [13].

Connect the >Cooling water inlet< [13] to the water supply. A seal must be used.
Leaking cooling water connections
DAMAGE BY ROOM FLOODING

Slowly open the building-side shut-off valves of the cooling water supply and return line.

If water leaks from the cooling water connections: shut off the cooling water supply and return
line immediately.

Provide leakproof cooling water connections.

Open the shut-off valves in the water line on the temperature control unit and on the building side.

Check the connections for leaks.
2.9 Temperature control unit for outdoor installation incl. winter
operation
Shut down temperature control unit with water cooling in outdoor operation
MECHANICAL DAMAGE CAUSED BY WATER FREEZING IN THE COOLING WATER LINE

Leave the temperature control unit permanently enabled.

Only turn off the temperature control unit permanently if the temperature control unit was
separated from the cooling water circuit and discharged at ambient temperatures below freez-
ing point.
Connection diagram
Installing a suction
strainer (table-top
models only)