HAMWORTHY HEATING LTD
65
Merley Boiler Sequence Controller
500001210/D
Electric immersion heater
release
24h/day
The electric immersion heater is always released, independent of time programs.
Example:
0
6
12
18
24
h
23
58
Z
2
4
DHW release
The electric immersion heater is switched on and off according to DHW release.
Example:
0
6
12
24
h
23
58
Z
2
5
17
Time program 4 / DHW
For the electric immersion heater, time program 4 / DHW of the local controller is
taken into account.
Example:
0
6
12
18
24
h
23
58
Z
2
6
Electric immersion heater
control
External thermostat
The storage tank is charged with an external thermostat without setpoint compensation
of the controller.
DHW sensor
The storage tank is charged with an electric immersion heater, with setpoint
compensation from the controller.
To ensure that setpoint compensation operates as required, the external control
thermostat must be set to the minimum storage temperature.
Plant hydraulics
Line no.
Operating line
5092
With primary controller/system pump
With primary controller /
system pump
It is to be set whether the DHW storage tank receives its heat via the primary controller
or with the help of the system pump (depending on the type of plant).
