User manual
22
CURVE C
C
40
18
C
0
5-5
24
32
40
48
56
64
18
CURVE C
C
40
18
C
0
5-5
24
32
40
48
56
64
18
When enter ‘Room heat’ mode, user could control compressor and electrical heater through
regulate heat curve or DM (degree minute).
under a certain ambient temperature ,the time start of compressor is determined by degree
minute(DM).
Now we are giving two situations to explain.
1. ‘start quickly’ is determined by FEED(heat curve)
Suppose now the feed water temperature is 25ć; regulate the heat curve to let the setting of water
temperature to be a higher value such as 55ć,that is FEED25(55). At that time, DM (degree
minute) decrease -30 per minute, when the DM reach -60, compressor will start right away.
(Notice: if the water temperature setting is lower than feed water temperature DM would turn
to positive number, and then compressor does not start. Of course, you also can regulate the DM to be
near the value for compressor start, such as -20.
turn it up
2. ‘start slowly’ is determined by FEED(heat curve)
Suppose now the feed water temperature is 25ć,if regulate the heat curve to let the setting of water
temperaturetobealowervaluesuchas30ć, that is FEED25(30); at that time, the DM would decrease -
10 per minute, the time to reach -60 is becoming longer, only after some time, then
compressor can start. You also can regulate the DM to be more far away from the value for compressor
start, such as (-100).
curve is a little flat
When enter room heat mode, it needs customer to regulate the heat curve or DM (degree minute)
according to own request.
If
you
wish
to
change
the
ROOM
value:
1
Pr
ess
the
”up”
or
”down”
button
once
to
open
the
ROOM
value
for
adjustment.
2
Incr
ease
or
r
educe
the
pr
eset
value
using
the
”up”
or
”down”
button
so
that
the
desir
ed
r
oom
temperatur
e
is
r
eached.
W
ait
for
10
seconds
or
pr
ess
the
left-hand
button
once
to
r
eturn
to
the
main
menu.