HAMWORTHY HEATING LTD
MILBORNE 500 SERIES
500001130/A
20
Pump Connection
Milborne series 500 regulation system includes the
simultaneous management of up to three
circulators.
Therefore, if a low temperature circuit supplied by its
own circulator is present and a general pump is to
be installed on the system, it will be necessary to
choose which one of the two devices should be
managed by the Boiler Master Control.
This operation is carried out by setting the relevant
parameter during commissioning.
The pumps shall be installed using an adequate
contactor, as shown in Figure 11.2
Connection 0-10V Analog Signal
A B.M.S. temperature regulation device using a 0 –
10 V analog signal can be used by connecting the
output signal to terminals no. 13 and 14 (figure no.
11.3).
Connection of an External Alarm
A 220 V output on the boiler’s terminal strip allows
to connect an external alarm signal, capable of
highlighting any fault condition.
The alarm device must be connected to terminals
no. 18 and 19 (figure 11.3).
Connection of a Remote Control
Outside Air Sensor Connection
If outside temperature compensation is to be used, the outside air sensor needs to be connected to terminals no.
7 and 8 (figure 11.1).
The outside air sensor shall be installed on an outside wall, North or North/East aspect, at a minimum height of
2.5 metres, away from windows, door, and ventilation grilles and flue discharges.
Never install the probe in a position exposed to the sun or other forms of radiated heat.
Figure 11.2
Figure 11.3
If the remote control (optional) is to be used, it must be connected to terminals no. 15, 16 and 17 (figure 11.3).
Programmable Room Thermostat Connection (On / Off)
Connect the high temperature system’s air temperature sensor to terminals no. 9 and 10 (figure 11.4). The low
temperature system’s thermostat shall be connected to terminals no. 11 and 12 (figure 11.4).
Remote Enable Signal
Alternatively a remote time clock / enable signal for the high and low temperature heating circuits may be
connected to the programmable room thermostat connections, terminals 9,10,11,12 respectively.
