Baxi SB-4X Series Installation, Assembly And Operating Instructions page 11

CAUTION: For the versions with stop and non-return
valves, these are already pre-installed and sealed with a
tightening torque of 15 Nm (hand-tight). Screwing with
excessive tightening torque destroys the valve screw con-
nection and the O ring. When installing the valve, use a
fixed spanner to prevent twisting.
4.2 Electrical connection
DANGER: Only a qualified electrician is allowed to work on
the electrical connection. Before establishing the connec-
tion, make sure that the connecting cable is dead.
Establish the electrical connection as follows:
(Fig. 7a - Fig. 7e)
Open the connector as follows: (Fig. 8)
4.3 Filling and venting
1. Fill the system
2. The pump rotor space vents automatically after a short
time in operation. This may cause noises. If necessary,
switch off and on repeatedly to accelerate the bleeding.
Dry running for short periods will not harm the pump.
English
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