Waters Xevo G2-XS QTof Overview And Maintenance Manual page 260

1. Ensure that there is adequate ventilation around the pump, so that the ambient
temperature around the pump does not exceed 40 °C. Ensure a minimum 150-mm
clearance for pump cooling fans.
2. Install the pump within two degrees of horizontal. To ensure proper ventilation, observe the
minimum clearances shown in the following figure.
Figure B–4: Oerlikon Leybold roughing pump - minimum clearances
Left-side minimum clearance is 15 cm (6 inches)
Rear minimum clearance is 15 cm (6 inches)
Right-side minimum clearance is 15 cm (6 inches)
Front minimum clearance is 35 cm (14 inches)
Figure B–5: Leybold Sogevac roughing pump - minimum clearances
Left-side minimum clearance is 15 cm (6 inches)
Rear minimum clearance is 15 cm (6 inches)
March 31, 2021, 715004496 Ver. 04 (previously released as Rev. D)
Page 260