Danfoss EPU 2370, Instructions Manual, Page: 47 / 48

BC-HM
VI.72.M4.02

Danfoss 11/97 47
Notes:
- All frost protection annulled.
- System 6-B (P+PI) is registered
automatically when sensor S2 is
connected. The necessary settings
become visible in the display
(registered when the unit is switched
on).
- Load-dependent compensation is
possible by connecting sensor S6.
Two independent compensation
curves can be set. Curves must be
set in P6.2 and P6.3 in P7.2 and P7.3
respectively.
- With economy temperature, total stop
function in P1.2 has the following
influence:
0
Control according to reduced
setpoint (P9.0).
Fan constantly cut in.
1 Valve closes and fan stops until
the room temperature has risen
to the required temperature.
Valve then opens and fan starts
until room temperature has fallen
1 degree.
- Relay status for different operating
situations with this system is as
follows:
Operating
Relay 1 Relay 2
condition
Standby 0 0
P1.2 = 0 1 time switch**)
Economy
P1.2 = 1 0 time switch**)
Normal 1*) time switch**)
Wiring diagram - System types 6-A and 6-B
*
)
On changing over from normal to
economy operation, R1 is delayed 3
minutes.
**
)
Relay contact R2 open with reduced
temperature.
0 = open relay contact
1 = closed relay contact