BC-HM VI.74.D2.02 © Danfoss 11/96 1
Instruction
ECL 9600
(This instruction only applies to software
generation 02.0 - se P0.1)
Contents
System examples........................... 2 - 3
Wiring .............................................. 3 - 5
- Connections with 230 V ac
- Temperature sensor connections
Control setting ............................. 6 - 18
User settings
.................................... 6 - 7
a) time switch
b) setting switch
c) display
d) temperature setting
e) function switch
Potentiometer settings
................... 8 - 10
g) heat curve slope setting - circuit 1
h) hot water service temperature
setting or heat curve parallel
displacement in circuit 2
i) hot water service function or heat
curve slope in circuit 2
j) reduced temperature level
Digital settings
.............................. 10 - 24
- Display, switch and (+), (–) and
SET keys
- Position selection
- Change of value
- Row 0 - Pump and valve status
- Row 1 - Outdoor temperature
- Row 3 - Heat circuit 1
- Row 4 - Heat circuit 2 or hot water
service temperature
- Row 5 - Room temperature
- Row 6 - Return temperature -
circuit 1
- Row 7 - Return temperature -
circuit 2
- Row 8 - Divers function selections
- Row 9 - Divers settings
Control and sensor test.................... 25
Manual valve control ........................ 25
Manual pump control........................ 25
Mounting and dismantling ........ 20 - 21
Time switch mounting ...................... 28
087R9478
087R9478
2 VI.74.D2.02 © Danfoss 11/96 BC-HM
System example 1 - 2 parallel-connected heating systems
System example 2 - Parallel-connected heating and hot water service system
BC-HM VI.74.D2.02 © Danfoss 11/96 3
System example 3 - District heating with two heating circuits
1 and 2 Bus
3 and 4 Remote control
or
4 and 5 Room sensor
11 and 12 Outdoor temp. sensor
10 and 11 Flow sensor - circuit 1
4 and 6 Return sensor - circuit 1
7 and 9 Flow sensor - circuit 2
8 and 9 Return sensor - circuit 2
13 Zero
14-15-19-21-23 Phase - 220-240 V
16 Relay outlet - motor valve (down) ciruit 1
17 Relay outlet - motor valve (up) circuit 1
18 Relay outlet - circulation pump circuit 1
20 Relay outlet - circulation pump circuit 2
22 Relay outlet - motor valve (down) circuit 2
24 Relay outlet - motor valve (up) circuit 2
4 VI.74.D2.02 © Danfoss 11/96 BC-HM
Terminal Load
Phase 14 -
Neutral 13 -
Circulation pump 18, 20 8 (2) A 230 V ac
Reversible gearmotor AMV, AMB
close 16, 22 8 (2) A 230 V ac
open 17, 24 8 (2) A 230 V ac
Type Terminal
Outdoor temperature sensor ESMT 11-12
Flow temperature sensor (circuit 1) ESMA/C/U 10-11
Flow or hot water service sensor (circuit 2) ESMA/C/U 7-9
Wiring
Electrical connections to controller must
be made using terminal board and screw
terminals
Up to 3 × 1.5 mm2 or corresponding can
be connected to each terminal.
Terminals are coded so that units
carrying mains voltage cannot be
connected to low-voltage section.
Lead cross-sectional area: 0,75 - 1,5 mm
2
Max. length: 50 metres
Wiring of temperature sensors, etc. - low-voltage (terminals 1-12)
Installation of sensors and remote controls are described in associated product
instructions.
ECL 9600 must be connected to the following sensors:
ECL 9600 will now control flow
temperature in circuit 1 and flow
temperature or hot water service
temperature in circuit 2.
Wiring with 230 V ac (13-24)
BC-HM VI.74.D2.02 © Danfoss 11/96 5
In addition, following sensors and remote
control units can be connected:
Lead cross-sectional area: min. 0.4 mm
2
Max. length: 50 metres
Note
Lead resistance can produce error
measurement. A resistance of 4 ohms
corresponds to a deviation of 1 degree.
Type Terminal
Return temperature sensor (circuit 1) ESMA/C/U 4-6
Return temperature sensor (circuit 2) ESMA/C/U 8-9
Remote control unit with built-in
ESMF 3-4
room sensor and override facility
Room temperature sensor
ESMR 4-5
or thermometer
Pt 1000 4-5
Control panel ECA 9020 with time switch,
optimiser and room sensor. Control panel ECA 9020 1-2
can also show actual and calculated
system temperatures
6 VI.74.D2.02 © Danfoss 11/96 BC-HM
Controller settings
User settings
a) Time switch (analog or digital)
b) Position selector
c) Display
d) Temperature setting
e) Function switch
f) User instruction
a) Time switch
If heating circuits are to be time
controlled build in one of below time
switches:
- 1-zone analog time switch
- 2-zone digital time switch
The control is not set for a built-in time
switch ex factory, but for constant normal
temperature in both heating circuits. So
P8.4 (time switch channel selection) is to
be changed - see paragraph on digital
settings.
Push slides towards the centre for
reduced temperature operation thus
required normal and reduced periods are
set on the analog time switch.
The digital time switch is set as
described in the user guide supplied with
the time switch.
b) Position selector
Position selector has positions 0-9.
Below table shows controller display c)
og each setting.
Setting Information
0 Pump and valve status
1 Outdoor temperature
2 None
3 Flow temperature (circuit 1)
4 Flow temperature or hot water
service temperature (circuit 2)
5 Room temperature/Thermometer
6 Return temperature (circuit 1)
7 Return temperature (circuit 2)
8 None
9 None
Position selector can also be used for
many other settings. Read paragraph
"Digital settings".
c) Display
Temperature indication as mentioned in
b). Read paragraph "Digital settings)
d) Temperature
Temperature setting operates in
accordance with P8.2 settings (see
section on digital settings). Weather
compensation or adaptive reference
room control are selected in P8.2.
Weather compensation
Flow temperature both in boiler circuit
and mixing circuit can be increased and
decreased (parallel-displaced) by turning
the knob. Turning towards +8 increases
the flow temperature.
Since parallel displacement depends on
heat curve slope, temperature changes
in the two heating circuits might differ.
BC-HM VI.74.D2.02 © Danfoss 11/96 7
ESMR/F reduces flow temperature when
set max. room temperature is exceeded.
Max. room temperature is factory-set at
22 °C, but can be changed in P5.2 (see
digital settings). Amplification factor can
be changed in P9.2 for circuit 1 and in
P9.3 for circuit 2.
Adaptive reference room control
Heat curve is automatically adapted to
the heat requirement. Room temperature
can be increased or decreased by
turning knob d).
The knob must be turned towards +8 if
room temperature is too low. Room
temperature setting range is factory set
at 22 ±8 °C. Knob mid-point can be set in
P5.2 (see digital settings).
Amplification factor can be changed in
P9.3 for circuit 2.
e) Function switch
Heating stopped in circuits 1 and 2.
If circuit 2 is used for hot water
service, heating is stopped in
circuit 1 only.
Time program overridden and
constant control in accordance
with reduced temperature in
circuits 1 and 2. If circuit 2 is used
for hot water service heating, only
circuit 1 is affected.
Automatic changeover between
normal and reduced temperature,
as set on time switch.
This program overridden and
constant control in accordance
with normal temperature in circuits
1 and 2. If circuit 2 is used for hot
water service heating, only circuit
1 is affected.
Manual operation
All control functions stopped.
Valves not activated and all pumps
continously cut-in (see "manual
pump control", page 25.
Valve in circuit 1 can be opened
and closed manually by turning
knob d) fully to the right or to the
left. Valve in circuit 2 can also be
opened and closed manually (see
section "Manual operation",
page 25).
The pump in the heating circuit can
be controlled manually in pushing
the "SET-button", when the setting
switch b) is in position 0 (see
"manual pump control", page 25)
>|< The time switch and all potentiome-
ter settings can be overridden. The
pre-programmed values appear
from paragraph "Digital settings".
f) User guide
8 VI.74.D2.02 © Danfoss 11/96 BC-HM
Potentiometer settings
g) Heat curve slope in circuit 1.
h) Heat curve parallel displacement in
circuit 2, or hot water service
temperature setting.
i) Heat curve slope in circuit 2, or
selection of hot water service function.
j) Reduced temperature level.
g) Heat curve slope setting - circuit 1
Heat curve slope can be set within range
0.2 - 3.4. Heat curve is factory-set af 1.8,
but can be overridden with
potentiometer e) in setting >|< to1.8.
If a satisfactory room temperature cannot
be obtained when outdoor temperature is
less than +5 °C, increase slope by
turning knob g). If outdoor temperature is
higher than +5 °C heat curve can be
parallel-displaced by turning knob d).
Examples of heat curve settings
*Outdoor temperature for sizing. Normally the lowest
occuring outdoor temperature of the heating season
is used.
Outdoor Radiator Floor heating
temperature* (80
°
C) (55
°
C)
–25 °C 1,2 0,35
–15 °C 1,6 0,45
–10 °C 1,8 0,55
BC-HM VI.74.D2.02 © Danfoss 11/96 9
j) Setting reduced temperature level
If reduced temperature is required the
time switch channels of the respective
circuits are to be set in P8.4.
Factory setting:
Circuit 1: no time control
Circuit 2: no time control
Reduced temperature level can be set at
a fixed value (1 - 8) or at an outdoor
temperature-dependent value (AUTO).
When a room temperature sensor is
connected both circuit 1 (P9.2) and circuit
2 (P9.3) can be selected for reduced
temperature operation. When the setting
is 0 the temperature will not be reduced.
Factory setting of reduced temperature
setting is 5. Each scale graduation
corresponds to about 1 room
temperature degree. In setting >|< , the
potentiometer is overridden to 5.
Reduced temperature
Reduced room temperatures appear from
above figure. Different settings are given
(–2, –4, –6, –8, and AUTO). The figure
shows that the room temperature
reduction is cancelled at outdoor
temperatures -15 °C. This value can be
changed in P1.3 within the range –29 °C
to +10 °C.
h) Hot water service temperature
setting or parallel displacement of
heat curve in circuit 2
Hot water service temperature setting
Hot water service temperature can be
set with potentiometer h) when hot water
service function is selected with
potentiometer i)
Setting range is 30-110 °C.
Mid-setting corresponds to 70 °C.
Factory setting is 50 °C.
Note:
hot water service temperature can
be read in P4.1.
Parallel displacement
When circuit 2 controls heating system,
flow temperature can be increased or
reduced (parallel displacement) with
potentiometer h). The potentiometer
must be turned towards + (clockwise) if
temperature is too low.
Heat curve slope affects magnitude of
parallel displacement. See "Temperature
setting". Setting range is ±8.
i) Hot water service function or setting
heat curve slope in circuit 2
Hot water service function
Hot water service function can be
selected by turning potentiometer fully
counterclockwise, to hot water service
symbol . This cuts out weather
compensation.
Heat curve slope
When circuit 2 is used for heating system
control, heat curve slope can be set
within range 0.4 - 3.4. Heat curve is
factory-set at 1.8, but can be overridden
with potentiometer e) in setting >|< to
1.8.
10 VI.74.D2.02 © Danfoss 11/96 BC-HM
Heat circuits 1 and 2 (with room sensor)
At reduced operation the room
temperature is controlled by ESMR/F, if
connected.
Heat circuit 1 (with room sensor)
and hot water circuit 2
At reduced operation the room
temperature is controlled in circuit 1 and
the hot water temperature in circuit 2 is
lowered to min. setting.
Row
← (–) Column 0-6 (+) →
0-9
0123456
0 P0.0* P0.1* ---- -
1 P1.0* P1.1* P1.2 P1.3 - - -
2- - ---- -
3 P3.0* P3.1* P3.2 P3.3 P3.4 P3.5 P3.6
4 P4.0* P4.1* P4.2 P4.3 P4.4 P4.5 P4.6
5 P5.0* - P5.2 - - - -
6 P6.0* P6.1* P6.2 P6.3 P6.4 P6.5 P6.6
7 P7.0* P7.1* P7.2 P7.3 P7.4 P7.5 P7.6
8 - - P8.2# P8.3# P8.4# P8.5# P8.6#
9 - - P9.2# P9.3# P9.4# P9.5# P9.6#
Digital settings
Display, switch and (+), (–) and SET
keys
Switch, display, (+), (–) and SET keys
can be used to check and change some
of the control settings.
Each check and setting range has a
certain "position". Table below shows
how to change between different
positions.
Values in positions marked * cannot be changed. Positions marked # contain up to three different functions. See
paragraph on change of value.
Heat circuits 1 and 2
(without room sensor)
At reduced operation the heat curve is
parallel displaced to achieve the required
reduced operation.
Heat circuit 1 (without room sensor) and
hot water service circuit 2
At reduced operation the heat curve of
circuit 1 is parallel displaced to achieve
the required reduction and the hot water
temperature of circuit 2 is lowered to min.
setting.
BC-HM VI.74.D2.02 © Danfoss 11/96 11
Position selection
- Position selector
is used when
selecting rows 0 - 9.
- (+) and (–) keys are used for selecting
columns 0 - 6. However, access to
positions in columns 2 - 6 can only be
gained by selecting P0.1 and pressing
SET for 5 seconds. Then, display will
show P0.2 and all positions become
accessible.
- When a particular position is selected,
display shows alternately the position
number, e.g. P1.2, and a particular
value, say 18 °C.
Note: Column 0 displays values only.
Change of value
1) Select required position.
2) Press “SET” once - display flashes.
3) Change value using keys (+) and (–).
4) Press “SET” to store value.
Note
Positions marked # contain up to three
different functions. Values are changed
by choosing one digit at a time.
Press SET and the digit at the very right
will begin to flash. Figure can then be
changed using keys (+) and (–).
When SET is pressed again, middle digit
can be changed. One more press on
SET and the digit at the very left can be
changed. All changes can be stored by
pressing SET. Display will then show
value and position number alternately.
Position Description
P0.0 Pump and valve status
Control valve(s) and pump(s) operation conditions are visible on the display as
horizontal bars when function is ON
P0.1 Software generation/access to columns 2-6
Generation code is displayed
Access procedure, columns 2-6. Press SET for 5 seconds, P0.2 is displayed
Row 0 - Status
Pump (circuit 2)
Valve opens (circuit 2)
Valve closes (circuit 2)
Valve closes (circuit 1)
Valve opens (circuit 1)
Pump (circuit 1)
12 VI.74.D2.02 © Danfoss 11/96 BC-HM
Position Description
P1.0 Actual outdoor temperature
Outdoor temperature signal can be delayed if slow registration of outdoor
temperature is required. Delay factor is set in P9.6.
P1.1 Accumulated outdoor temperature
Used in connection with summer cut-out P1.2
Accumulation factor is set in P9.6
Position Setting Range >|<
P1.2 Summer cut-out 10 - 30 °C 18 °C
Setting outdoor at which heating is to be
cutout. Accumulation factor is set in P9.6.
P1.3 Reduced temperature cut-out –29 °C to 10 °C –15 °C –15 °C
Setting outdoor temperature at which reduced
temperature is to be cutout.
Row 1 - Outdoor temperature
Row 2
No informations or settings
Position Description
P3.0 Actual flow temperature (circuit 1)
P3.1 Required flow temperature (circuit 1)
Calculated on the basis of heat curve slope
Position Setting Range >|<
P3.2 Minimum flow temperature (circuit 1) 10 - 90 °C 10 °C 10 °C
P3.3 Maximum flow temperature (circuit 1) 30 - 120 °C 120 °C 120 °C
P3.4 Integration factor (circuit 1) 10 - 899 s 120 s
High value = slow, but stable control
Low value = fast, but risk of unstable control
P3.5 Proportional band (circuit 1) 1 - 40 K 20 K
Large P-band = minor reaction at P-band deviation
P3.6 Motor constant - circuit 1 5 - 899 s 120 s
Setting the valve/motor operation time from fully
closed to fully open. When the correct time of the
motor/valve combination is set the t
n
-integration
constant can be set in seconds (P3.4)
Row 3 - Heat circuit 1
BC-HM VI.74.D2.02 © Danfoss 11/96 13
Position Description
P4.0 Actual flow temperature (circuit 2)
P4.1 Required flow temperature (circuit 2)
Flow temperature is calculated on the basis of the heat curve slope
or required hot water service temperature
Position Setting Range >|<
P4.2 Minimum flow temperature (circuit 2) 10 - 90 °C 10 °C 10 °C
P4.3 Maximum flow temperature (circuit 2) 30 - 120 °C 120 °C 120 °C
P4.4 Integration factor (circuit 2) 10 - 899 s 120 s
1)
High value = slow, but stable control
Low value = fast, but risk of unstable control
P4.5 Proportional band (circuit 2) 1-40 K 20 K
Large P-band = low reaction af P-band deviation
P4.6 Motor constant (circuit 2) 5 - 899 s 120 s
Setting the valve/motor operation time from fully
closed to fully open.
When the correct time of the motor/valve
combination is set the t
n
-integration constant can
be set in seconds (P4.4)
1)
At hot water service control we recommend to change the basic setting P4.4 into 15-30 s.
At instability the setting is to be rechanged.
Row 4 - Heat circuit 2 or hot water service circuit
14 VI.74.D2.02 © Danfoss 11/96 BC-HM
Position Description
P5.0 A) Actual room temperature
B) Thermometer
Sensor input can be used to monitor other temperatures.
For example, district heating flow temperature.
Function A) or B) is selected in P8.2.
Position Setting Range >|<
P5.2 A) Maximum limitation - room temperature 10 - 30 °C 22 °C
Setting room temperature at which flow temperature reduction
starts, when ESMR/F is used.
B) Adaptive reference room control
Setting reference room temperature, i.e. heat curve is
automatically adapted to heat requirement, when ESMR/F
is used.
Note: With ESMF max. limitation value can be displaced
in relation to value in P5.2 by +/– 10 degrees.
Function A) and B) are selected in P8.2.
Row 5 - Room temperature
BC-HM VI.74.D2.02 © Danfoss 11/96 15
Position Description
P6.0 Accumulated return temperature (circuit 1)
Display of actual temperature accumulated according to factor set in P9.5.
P6.1 Return temperature reference (circuit 1)
Display of actual return temperature limitation reference.
Position Setting Range >|<
P6.2 Influence of return temperature limitation on 0 - ±9 –2
flow temperature (circuit 1)
When return temperature exceeds set limit flow
temperature is increased or reduced.
Value determines change magnitude
(Amplification) and sign determines direction:
+ flow temperature increase
- flow temperature reduction
P6.3 Return temperature limitation - upper limit (circuit 1) 10 - 90 °C 90 °C
See fig. 1
P6.4 Return temperature limitation - lower limit (circuit 1) 10 - 90 °C 45 °C
See fig. 1.
P6.5 Return temperature limitation - start value de –20 - +20 °C +15 °C
for proportional limitation (circuit 1)
Outdoor temperature setting at which proportional
limitation must start (weather-compensated limitation).
See fig. 1.
P6.6 Return temperature limitation - curve slope (circuit 1) 0 - 25 °C 12
Setting return limitation curve slope in connection
with proportional limitation (weather-compensated
limitation) See fig. 1.
1 - 25 corresponds to 0.1 - 2.5 curve slope
Row 6 - Return temperature (circuit 1)
Fig. 1
16 VI.74.D2.02 © Danfoss 11/96 BC-HM
Row 7 - Return temperature (circuit 2)
Position Description
P7.0 Accumulated return temperature (circuit 2)
Display of actual return temperature accumulated according to factor set in P9.5
P7.1 Return temperature reference (circuit 2)
Display of actual return temperature limitation reference
Position Setting Range >|<
P7.2 Influence of return temperature limitation on 0 - ±9 –2
flow temperature (circuit 2)
When return temperature exceeds set limit the
flow temperature is increased or reduced.
Value determines change magnitude
(Amplification) and sign determines direction:
+ flow temperature increase
– flow temperature reduction
P7.3 Return temperature limitation - upper limit (circuit 2) 10 - 90 °C 90 °C
See fig. 1
P7.4 Return temperature limitation - lower limit (circuit 2) 10 - 90 °C 45 °C
See fig.1.
P7.5 Return temperature limitation - start value –20 to +20 °C +15 °C
for proportional limitation (circuit 2)
Outdoor temperature setting at which proportional
limitation must start (weather-compensated limitation)
See fig. 1.
P7.6 Return temperature limitation - curve slope (circuit 2) 0 - 25 °C 12
Setting return limitation curve slope in connection with
proportional limitation (weather-compensated limitation)
See fig. 1 under P6.6.
0 - 25 corresponds to 0.1 - 2.5 curve slope.
BC-HM VI.74.D2.02 © Danfoss 11/96 17
Row 8 - Diverse function selection
001
0
1
0
1
Position Setting Range >|<
P8.2
Pump exercise in circuit 1 0 or 1
Pump exercise OFF
Pump exercise ON. Pump cut in about 1 minute
every 72 hours
Weather compensation/adaptive reference 0 or 1
room control
Weather compensator with maximum room
temperature limitation.
Temperature is set in P5.2.
Adaptive reference room control.
Control based on room sensor measurements in
reference room. Heat curve is automatically
adapted to heat requirements. The value of the
mid-positioned ±button is set in P5.2
Room temperature display or thermometer function 0 or 1
Room temperature displayed in P5.0
influences the control.
Thermometer can be connected to any Pt 1000 type
sensor via terminals 4 - 5. For example, to monitor
district heating primary temperature. Control
functions are not influenced by the measured
temperature.
0
1
18 VI.74.D2.02 © Danfoss 11/96 BC-HM
Position Description Range
P8.3
Pump exercise in circuit 2 0 or 1
Pump exercise OFF
Pump exercise ON. Pump cut-in about 1 minute
every 72 hours.
Weather compensation/adaptive reference room control 0 or 1
circuit 2
Weather compensator with max. room temperature
limiter. The temperature is set in P5.2.
Adaptive reference room control. The function is
based on a room sensor placed in a reference
room. The heat curve is automatically adapted to
the heat demand. The value of the mid-positioned
±button is set in P5.2
Hot water priority/parallel operation of master control 0 - 9
This function provides sufficient power to circuit 2 to achieve
required hot water temperature. The reference temperature
of circuit 1 is gradually lowered, if the actual flow temperature
in circuit 2 is lower than the reference value and the set value
0 = Parallel operation. Circuit 1 is not influenced
by the temperature conditions of circuit 2
1 - 9 = Priority control. Circuit 1 reference is influenced
if circuit 2 cannot achieve the required temperature.
001
1
0
x--
0
1
BC-HM VI.74.D2.02 © Danfoss 11/96 19
Position Description Range >|<
P8.4
Time switch channel - circuit 1 and 2 0 - 8
The heat circuits can be controlled via a built-in
time switch, ECA 9020 or a master control time
switch. Time switch channel is selected when setting
one of below values.
channel for time-control of temperature
in circuit 1 is active
channel for time control of temperature
in circuit 2 is active
channel for time-control of circulation pump
circuit 2 at hot water service control*.
the setting is not active when circuit 2 is
used for heating purposes.
0 = no time control
1 = time control according to time switch
channel 1 however overridden by ECA 9020
channel 1.
2 = time control according to time switch
channel 2 however overridden by ECA 9020
channel 2
3 = time control according to ECA 9020 channel 3
4 = time control according to ECA 9020 channel 4
5 = time control according to built-in time switch
channel 1
6 = time control according to built-in time switch
channel 2
7 = time control according to master
time switch channel 1
8 = time control according to master
time switch channel 2
* At setting 0 frost protection function is active and the pump
follows the channel that controls the hot water temperature. In
setting 1-8 frost protection is cancelled and the pump follows
the selected channel.
-00
x
x
x
000
20 VI.74.D2.02 © Danfoss 11/96 BC-HM
Position Description Range
P8.5
Min. or max. return temperature limitation (circuit 1)
0 or 1
Max. return limitation (district heating)
(limit set in row 6)
Min. return temperature limitation (boiler system)
(limit set in row 6)
Min. or max. return temperature limitation 0 or 1
(circuit 2)
Max. return limitation (district heating)
(limit set in row 7)
Min. return temperature limitation (boiler system)
(limit set in row 7)
Total stop at reduced temperature operation 0 - 3
Total stop at reduced temperature operation can be
set for a single or for both heating circuits according to
demand. At total stop the flow temperature is lowered to
10 °C. The reference operation of circuit 1 is cancelled.
Total stop is cancelled in hot water function circuit 2.
0 = total stop not selected
1 = total stop selected for circuit 1
2 = total stop selected for circuit 2
3 = total stop selected for circuit 1 and 2
Total stop overrides return limitation, room compensation
and min. flow temperature.
000
0
1
0
1
x
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