D-EOMHP01405-21_02EN 15/35
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DeltaT
All settings related to pump management are available in the menu [8].
Menu Parameter
Range Description
R/W
Psw
08
00
(
Recirculation
time
)
0-300
Minimum time required within flow switch has to be closed to allow unit
startup.
W
1
01
(
Standby Speed
)
0-100
Pump speed with Unit Capacity = 0
W
1
02
(
Speed
)
0-100
Actual feedback pump speed.
R
1
03
(
Max Speed
)
0-100
Maximum value for pump speed.
W
1
04
(
Min Speed
)
0-100
Minimum value for pump speed.
W
1
05
(
Sp Speed1
)
0-100
First target value for pump speed in Fixed Speed control conditions.
W
1
06
(
Sp Speed2
)
0-100
Second target value for pump speed under Fixed Speed control conditions. W
1
07
(
Setpoint kPa1
)
0-45
DeltaP target for the farthest terminal of the system.
W
1
08
(
Setpoint kPa2
)
0-45
Minimum allowed value for the Evaporator Pressure Drop.
W
1
09
(
BypassValveSt
)
Off/On
Off = Evaporator Pressure Drop > Minimum Evaporator Pressure Drop
Se Hysteresis.
On = Evaporator Pressure Drop < Minimum Evaporator Pressure Drop
Setpoint.
R
1
10
(
LoadPD
)
0-1000 This value displays the actual pressure across the furthest Terminal.
R
1
11
(
EvapPD
)
0-1000 This value displays the actual pressure drop across the Evaporator.
R
1
12
(
Parameter-K
)
1-10
This value scales the PI algorithm parameters to obtain a faster response.
W
1
13
(
Setpoint DeltaT
)
0-10
Evaporator Water Temperature difference setpoint.
W
1
14
(
VPF Alarm Code
)
0-3
VPF’s alarming related to pressure drop sensors.
R
1
The path in the Web HMI interface for Pump Settings is
“
Main Menu -> View/Set Unit -> Pumps
”
.
3.8.
Network Control
To allow unit’s control from BMS system the Control Source parameter [4.00] needs to be set in Network. All settings
related to BSM control communication can be visualized in Page [4]:
Menu Parameter
Range
Description
R/W
04
00
(
Control Source
)
0-1
0 = Network control disabled
On/Off command from network
W
1 = Network control enabled
01
(
Enable
)
0-1
0 = Unit is Enable
On/Off command from network visualization
R
1 = Unit is Disabled
02
(
Cool LWT
)
0..30°C
-
Cooling water temperature setpoint from
network
R
03
(
Heat LWT
)
30..60°C -
Heating water temperature setpoint from
network
R
04
(
Mode
)
0-3
0 = Not Used
1 = Chiller
2 = Heat Pump
3 = Not Used
Operating mode from network
R
05
(
Current Limit
)
mA
-
Current limitation setpoint from network
R
06
(
Capacity Limit
)
0..100% -
Capacity limitation level from network
R
Refer to communication protocol documentation for specific registers addresses and the related read/write access level.
The path in the Web HMI interface is “
Main Menu -> View/Set Unit -> Network Control
”.
