Condensate Removal; Electrical Connection; Power Supply Cable Connection - Bosch SSB255 Installation And Service Manual

4 .4 .6

Condensate removal

The condensate water produced by the boiler during its normal operation
is collected by two plastic pipes (A and B) provided with the boiler and
connected with a plastic collector inside the case. A third tube (C) collects
the condensate output from the collector [Arrow is the direction of flow of
condensate].
Fig. 15
DANGER: The condensate pipe A and B, shown in Fig. 15,
a
must be filled with water or combustion gases will enter the
room with a risk of an excessive level of carbon monoxide.
To fill the condensate discharge add water from the vent (1) until you see
water come out of the condensate discharge pipe (2).
Fig. 16
The condensate water shall be discharged at atmospheric pressure,
i.e. by dripping into a siphon-shaped container connected to the home
sewage system or suitable drain, and shall be neutralized prior to draining
per local codes.
The boiler is equipped with three holes (in the right, left and back side) to
carry the condensate out the condensate drain tube.
Install the condensate drain tube through the appropriate hole and be
sure to pitch away from the boiler.
• Do not reduce the diameter of the condensate drain pipe down
SSB
A B C
H O
1
2
H O
2
2
stream.
• Never use copper pipes or of other material not intended for the
specific purpose, because the action of condensate will cause a rapid
deterioration.
• Check that the condensate drain pipe is adequately sloping towards
the discharge point avoiding high points, which can inhibit the flow of
condensate.
• Install the condensate pipe in such a way so as to avoid the freezing
of the liquid.
NOTICE: Verify condensate disposal / neutralization is in
accordance with local, state and federal regulations.
A condensate removal pump is required if the boiler is below the drain.
When installing a condensate pump, select one approved for use with
condensing boilers and furnaces. The pump should have an overflow
switch to prevent property damage from condensate leakage.
4 .5

Electrical connection

4 .5 .1

Power supply cable connection

To connect the boiler to the electrical supply, as required by local, state
and federal codes, provide and install a service switch (15 amp is
recommended).
The power supply cable can be inserted into the boiler using one of the
six knock out holes (A) on the sides as shown in Fig. 17.
WARNING: All the electrical wiring must be secured by
a
appropriate strain reliefs.
To secure the supply cable inside of the boiler use the cable clamp shown
in position B shown in Fig. 18.
A
Fig. 17
B
Fig. 18
Installation | 19
6720818454 (2016/02) US