128
Control
9.15.4 DHW pump (recirculation) if present
To enable the function, select
MENU > FOR SERVICEMAN > DHW MODE SETTINGS
Enable parameters:
1.4 DHW PUMP;
1.19 DHW PUMP OPER.TIME
The pump is to be provided by the customer.
The DHW PUMP function recirculates the water in the water
system.
Select
MENU > DOMESTIC HOT WATER > DHW PUMP
Press OK
DOMESTIC HOT WATER (DHW) 1/2
DISIN-
FECT
FAST
DHW
HEAT.
TANK
PUMP
DHW
NO. START NO. START
T1 00.00 T4 00.00
T2 00.00 T5 00.00
T3 00.00 T6 00.00
DOMESTIC HOT WATER (DHW) 2/2
DISIN-
FECT
FAST
DHW
HEAT.
TANK
PUMP
DHW
NO. START NO. START
T7 00.00 T10 00.00
T8 00.00 T11 00.00
T9 00.00 T12 00.00
Scroll to n and press OK to select or deselect. ( timer
selected. timer deselected.)
Press LEFT, RIGHT, Down, Up to scroll and press Down, Up to
adjust the parameters.
For example: the DHW
PUMP parameter has been set (see FOR SERVICEMAN > DHW
MODE SETTING).
The operating time of the PUMP is adjustable with the
parameters.
DOMESTIC HOT WATER (DHW) 1/2
DISIN-
FECT
FAST
DHW
HEAT.
TANK
PUMP
DHW
NO. START NO. START
T1 00.00 T4 00.00
T2 00.00 T5 00.00
T3 00.00 T6 00.00
Schedule example:
NO. TIME
1 6:00
2 7:00
3 8:00
4 9:00
Parameter 1.19 DHW PUMP OPER.TIME has been set at 30
minutes, the pump will start at the following times
PUMP
6:00 6:30 7:00 7:30 8:00 8:30 9:00 9:30
ON
OFF
Fig. 118
PUMP