Heating medium pumpGP6
GP6 is an internal heating medium pump, installed
after reversing valve QN10, and also enables DM calcu-
lation during hot water charging.
GP6 runs when:
■
hot water is produced and heating or 2-pipe cooling
is permitted.
■
heating is permitted and 4-pipe cooling or pool is
produced.
■
4-pipe cooling installed and cooling is permitted and
operating mode EQ1 - GP12 is auto.
Otherwise, GP6 is stationary.
Supply pump exercise
All connected pumps are exercised for 7 seconds every
100 hours after they were last active.
Speed controlled pumps are run at 75 % of the speed.
Valves
Reversing valve (QN10)
The reversing valve QN10 controls towards hot water
during hot water production and tank defrosting,
otherwise towards the heating system.
Function
When shifting to and from 2-pipe cooling, QN10 re-
mains in the position the previous demand had for 30
seconds, then QN10 shifts to the relevant demand.
When shifting to and from 4-pipe cooling, QN10 re-
mains in the position the previous demand had for 60
seconds, then QN10 shifts to the relevant demand.
If there are no other demands, QN10 sets to the heat-
ing system after completed hot water charging.
During defrosting (not defrosting to tank), QN10 always
sets itself to heating mode to then, 30 seconds after
completed defrosting, shift to the relevant demand.
QN10 is usually towards the heating system except:
■
If EB101 or EB1 run and there is a hot water demand,
QN10 sets itself to hot water.
■
During defrosting to tank.
In emergency mode, QN10 is towards the heating sys-
tem ( port B: control phase off).
Valve exercising
All connected reversing valves and shunts are exercised
for 20 seconds at the most every 100 hours after they
were last active and there are no demands.
When the start guide is active, all reversing valves oscil-
late and shunt between their outer positions to ensure
that the system is bled.
Floor drying
The floor drying function is activated in menu 5.9.
When it is activated the calculated flow is set to the set
values in menu 5.9. 7 periods can be selected where
the number of days and calculated flow can be set.
When the floor drying function is active the number
of days remaining is shown in the bottom edge of the
display. The memory stores the progress of the pro-
gram, so that the function can be resumed when it was
interrupted by a power cut or similar.
All climate systems calculated flow are set to the set
when floor drying is active.
Hot water is not produced when the floor drying
function is active.
Setting
range
NameMenu
0 – 30 daysPeriod length 1-75.9
15 - 70 °CCalculated supply temperat-
ure 1-7
Uplink
Nibe Uplink is a program and hardware that makes it
possible to control and access data in VVM 320 via a
computer and the Internet.
Range of services
Via VVM 320 you have access to different levels of ser-
vice. A basic level that is free and a premium level
where you can select different extended service func-
tion for a fixed annual subscription fee (the subscription
fee varies depending on the selected functions).
Premium
1)
BasicService level
XXViewer
XXAlarms
XXHistory
2)
XExtended history
3)
XChange settings
4)
1) These functions are available at premium level.
2) History means 1 month's history of a limited amount of parameters depending on the system.
3) Extended history means history since connection of VVM 320, of a further 30 parameters depending on the installation.
4) Change settings means in essence full access to the menus"INDOOR CLIMATE", "HOT WATER" and "HEAT PUMP" (with the exception
of certain sub-menus such as "time & date", "my icons" and "sms").
NIBE™ VVM 320Chapter 4 | Description of functions22
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