PROBOIL .4E User's Installation Manual page 41

6. Screw the ½" blue wingnut inlet connector with
integral/ internal "flat" rubber seal (G) hand tight (do
not use a spanner or overtighten as the rubber seals
may distort or be damaged) on to the boiler ½" inlet
male (B).
7. Push fully and firmly the ¼" x ¼" pushfit connector (F)
onto the ½" blue wingnut inlet connector (G).
8. Check that the red 3/8" x 8mm boiler outlet connector
(J) has preinserted internally the 3/8" rubber seal (I), an
additional seal is supplied, ensure to use only 1 x 3/8"
rubber seal in this connection.
9. Screw the red 3/8" x 8mm boiler outlet connector (J)
hand tight (do not use a spanner or overtighten as the
rubber seal may distort or be damaged) on to the
boiler 3/8" male outlet (C).
10. Plug the power cable (D) securely into the socket on
the left-hand side of the boiler (A).
11. Hook the boiler keyhole slots onto its wall fixing screws (M) and check it is secure.
PROBOIL.4E user & installation guide v1d 41