168 1290 Infinity Quaternary Pump User Manual
9 Maintenance
Replacing the Heat Exchanger
Replacing the Heat Exchanger
Tools required p/n Description
Wrench, 19 mm
5023-2501 Screwdriver Torx-T10
Parts required p/n Description
G4220-81013 Heat Exchanger (secondary pump head only)
G4220-20028 Headless screw for 1290 Infinity pump heads
G4220-20001 Spacer Fitting
Preparations • Remove the pump head assembly from the pump
• Remove the secondary pump head from the link plate
Loss of small spacer fitting
Inside the secondary pump head is a small spacer fitting, which can be dropped easily
when removing the heat exchanger.
➔ The heat exchanger does not need to be removed for pump head maintenance.