HAMWORTHY HEATING LTD
57
Merley Boiler Sequence Controller
500001210/D
Optimum start / stop control is possible with or without room sensor.
0
24
2
35
8Z
02
Xein
Xaus
TRx
TRw
ZSP
1/4 °C
Xein
Switch
-
on time shifted forward in time
Xaus
Switch
-
off time shifted forward in time
ZSP
Time switch program
TRx
Actual value room temp
TRw
Room temperature setpoint
Raising the reduced setpoint
Line no.
Operating line
HC1
800
Red setpoint increase start
801
Red setpoint increase end
The function is used primarily in connection with heating systems with
only
little spare
capacity (e.g. low
-
energy houses). In such cases, the heating up time would be too
long at low outside temperatures. When the Reduced setpoint is raised, the rooms
are prevented from cooling down to too low levels, thus shortening the heating up
time when changing to the Comfort setpoint.
23
58
Z
06
-15
-5
TR
TRK
TAgem
TRwA2
TRwA1
TRR
TRwA1
Reduced setp increase start
TRwA2
Reduced setp increase end
TRK
Comfort cooling setpoint
TRR
Reduced room temperature setpoint
TAgem
Composite outside temperature
Over
-
temperature
protection pump circuit
Line no.
Operating line
HC1
820
Over
-
temperature protection pump circuit
