Buchi F-305 - Filling and Draining the Coolant Tank

BÜCHI Labortechnik AG Installation | 5
Operation Manual Recirculating Chiller F-305 / F-308 / F-314 27/42
5.5 Filling and draining the coolant tank
3
1
1
2
Fig.16: Filler and drain tap for coolant (example shows F-305)
1 Coolant filler cap 3 Drain tap for coolant tank
2 Tank overflow
Filling with coolant
NOTICE
Risk of property damage if incorrect coolant used
u When selecting the coolant, take account of the chiller temperature setting.
u Make sure that the coolant is suitable for the desired chiller temperature setting,
especially with regard to the freezing point.
u BUCHI recommends a mixture of ethylene glycol and water with a ratio of at least
40:60 with a freezing point of -16 °C.
u Do not use silicone oil.
Precondition:
R Device is not in operation and has cooled down.
R Recirculating Chiller is not connected to any other device.
u Remove the coolant filler cap (1) and pour coolant into the filler neck.
u Keep an eye on the fill level indicator on the front of the Recirculating Chiller. In
the case of large cooling systems with long tubing runs and/or several condensers
connected in series, fill the coolant tank to the maximum level. See also Chap-
ter3.2.3 "Fill level indicator", page12.
u Replace filler cap on coolant filler neck.
u (Re-)connect other devices to the Recirculating Chiller. See Chapter5.4.3 "Con-
necting the coolant tubing to the F-3xx", page25.
Draining the coolant tank
Precondition: