
Example, MFR2 as a DHW pump:
The DHW maximum tank temperature set-
point can be set, it defaults to the maximum
DHW output of the boiler model, but this
can be decreased:
Antilegionella. If the DHW tank requires
the Antilegionella function then select
either 'Weekday' or 'Interval' from the list.
Otherwise set to 'None'.
For weekday set the following parameters,
followed by 'Done':
Then set the desired Antilegionalla
temperature, followed by 'Done':
Tank Sensor. If the DHW has a Tank
Sensor connected then select 'Yes' from
the list. Otherwise set to 'None'.
SL2 input function: The SL2 input can be
configured to act as an enable, in the case
of a tank thermostat with the internal timer,
or as an override switch/tank thermostat
with external timer. By default the SL2
input must be wired via a safety thermostat
and isolating valve on a pressurised DHW
tank, and must always be present for the
DHW tank charge to operate.
OpenTherm Input Function. The
OpenTherm interface can be configured as
a DHW circuit control function, if this is not
required, select 'None'.
Internal timeclock. A timeclock can be
set for the DHW circuit, this will control
all functions. It can be set as a single or
multiple day timer.
Single day timer is programmable for
each of the 7 days with 3 periods per day,
Monday through Sunday:
Use an internal timeclock
No
Yes
Use an internal timeclock
No
Yes
Time clock
Single
Multiple
Single
Monday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Tuesday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Wednesday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Thursday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Friday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Saturday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Monday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Sunday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Single
Monday
Period 1 06:00-22:00
Period 2 00:00-00:00
Period 3 00:00-00:00 Done
Tank Sensor?
None
Yes
Configure OpenTherm
None
Temperature demand
Tank Sensor?
None
Yes
Configure SL2
None
DHW enable
DHW override
Configure OpenTherm
None
Temperature demand
Antilegionella?
None
Weekday
Interval
Antilegionella timing
Weekday: Saturday
Start time: 01:00
Done
Antilegionella timing
Weekday: Saturday
Start time: 01:00
Done
Antilegionella timing
Weekday: Saturday
Start time: 01:00
Done
Antilegionella temperature
65ºC
Done
Antilegionella temperature
65ºC
Done
Antilegionella?
None
Weekday
Interval
Set max tank temp
60ºC
Done
Set max tank temp
60ºC
Done
Select loc'n of DHW pump
MFR1 ()
MFR2 (DHW1 pump)
MFR3 ()
MFR4 ()
48
Installation & Servicing
SECTION 2 - INSTALLATION
INST
ALLA
TION
Содержание HEAT 2 45
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