24 Installation and maintenance instructions 0020308121_04
7.7.1.7 External termination into rain water down
pipe
NB only combined foul/rainwater drain
7.7.1.8 Additional methods of introducing air breaks
1 Air break
2 Using a tundish
3 Using a pipe
7.7.1.9 Connection of condensate pump
Preferred option for external connection
7.8 Installing the drain pipe on the expansion
relief valve
1. Install the drain pipe for the expansion relief valve so
that it does not interfere with the removal and fitting of
the lower section of the condensate trap.
2. Install the drain pipe (1) as shown (do not shorten).
3. Make sure that the end of the pipe is visible.
4. Ensure that discharged water or steam cannot cause
injury to persons or damage to electronic components.
5. Ensure the discharge pipe work is installed, routed and
terminated correctly to minimise the risk of freezing up.
7.9 Connecting the flexible hose to the
expansion relief valve on the shift-load
cylinder
Danger!
Risk of scalding!
Heating water that leaks from the drain of
the expansion relief valve may cause severe
burns.
▶ Install the expansion relief valve drain to a
professional standard.
▶ Use the flexible hose that is included in
the scope of delivery.
1. Connect the flexible hose (1) to the expansion relief
valve (2).
2. Route the end of the flexible hose with a downward
gradient via an open connection to a tundish.
3. Ensure that the end of the line is visible.
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