Connecting the circulating pump
The boiler is supplied without a pump. An external CH pump may be
connected:
1. Connect an external CH pump to the Pump terminals of the
connector.
Maximum power consumption may be 300 VA.
For more information about controlling a modulating pump:
See
Connection options for the SCU-S05 control PCB, page 43
Connecting a PC/laptop
A PC or laptop can be connected to the RS232 input using a USB cable.
Using the Recom PC/laptop service software, you can enter, change and
read out various boiler settings.
Fig.31 Connecting the pump
N L
Mains
N L
PUMP
ON/OFF
OT RLBL
Fig.32 Connecting a PC/laptop
6 Installation
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