Coster DTU 614 C2 Eng. User manual

1
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
TEMPERATUREAND HUMIDITY CONTROLLER
FOR ONE-BATTERYAIR HANDLING UNIT
DTU 614 C2 Eng.
• Temperature and relative humidity control in air handling units
• 24-hour, 7-day, and yearly period programming
• Communication systems:
– telemanagement C-Bus
• 24 V power supply; DIN rail mounting
1. APPLICATION
DTU 614 is designed for temperature and humidity control in air handling units composed of:
• 1 hot/chilled water or vapor battery with 3-wire modulating control
or electric batteries with 1-,2-, or 3-stage On-Off control
or direct expansion batteries with 1- or 2-stage On-Off control
• 1 adiabatic humidifying unit with On-off control
or vapor-operated, with 0...10 V– control (alternative to air damper control)
• 1 air mixing unit with 0...10 V– air damper actuators
or 1 heat recuperator with 0...10 V– or On-Off control (CSV 304 converter).
The equipment can be included in a Telemanagement system through the C-Bus connection.
2. FEATURESThe main features of DTU 614 are as follows:
• One 3-wire modulating output, or 2-stage On-off (two equal loads) or 3-stage (two unequal loads) outputs,
configurable for:
– room temperature control (heating or cooling) with summer external compensation if desired, minimum
and maximum flow limits to prevent cold drafts, hot air stratification and condensing in the air ducts.
– flow temperature control (heating or cooling) with winter and summer compensation if desired
– pre-heating temperature control at variable values according to room temperature and humidity
– battery antifreeze temperature control
– One On-off output for winter adiabatic humidifying unit control
• One 0...10 V– progressive output, configurable for:
– air mixing control based on temperature comparison, with minimum external air limit
–externalaircontrolforroomdehumidificationwithcompensationofdewtemperatureonglasswindowsand
with minimum external air limit
– heat recuperator On-Off control according to room-external temperature comparison
– vapor-operated humidifier setting by means of a 0...10 V– control
• One 3-wire On-Off output for manual or automatic seasonal switching.
• Two On-Off outputs for fan and pump control according to time setting in use
• Winter battery frostprotection temperature control
• Time setting including 25 24-hour programs, 5 7-day programs, and 25 yearly period programs
• Alarms for detector short and open circuits and for system and equipment malfunction.
C BUS
3. ACCESSORIES
No. Description Type Application Range Sensing element t°Code Datasheet
1 Duct flow air temperature detector STA 010 0…60 °C NTC 10 kΩB1 –
1 Duct outside air temperature detector STA 001 –30…+40 °C NTC 1 kΩB2 –
or wall outside air temperature detector SAE 001 –30…+40 °C NTC 1 kΩB2 –
1 Duct extract air temperature detector STA 010 0…40 °C NTC 10 kΩB3 –
or room air temperature detector SAB 010 0…40 °C NTC 10 kΩB3 –
1 Duct pre-heating temperature detector STA 010 0…40 °C NTC 10 kΩB4 –
or dew point temperature detector STV 010 0…40 °C NTC 10 kΩB4 –
1 Room relative humidity and temperature detector SAU 012 0…40 °C ; 20…80 % NTC 10 kΩB3-B6 –
or duct relative humidity detector SUR 012 20…80 % – B6 –
or duct relative humidity detector (swimming pools) SUR 051 10…90 % – B6 –
1 Battery frostprotection temperature detector – flush SAF 010 0…40 °C NTC 10 kΩB7 –
or immersed SIH 010 0…40 °C NTC 10 kΩB7 –
1 0…10 V – to 2-stage On-Off Duct converter CSV 304 ––U1–
1 Temperature set-point adjuster CDB 100 ±5 °C–Rt°–
1 Relative humidity set-point adjuster CDB 200 ±5 %H – RH –
1 Outside air minimum distance positioner PCS 04 ––Rs–
E 121
04.07.01

2
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
5. OVERALL DIMENSIONS 6. FRONT PANEL
1
2
3
3
4
5
4. TECHNICAL DATA (default values in bold print)
• Electrical data
Power supply 24 V ~ ±10%
Frequency 50 … 60 Hz
Consumption 5 VA
Protection IP40
Radio interference VDE0875/0871
Vibration test with 2g (DIN 40 046)
Voltage-free output contacts:
maximum switching voltage 250 V ~
maximum switching current 5 (1) A
Construction standards Italian Elechtrotech Comm. (CEI)
Data storage period 5 years
Software Class A
• Mechanical data
Case Modulo DIN 6E
Mounting on DIN 35 rail
Materials:
base NYLON
cover ABS
Room temperature:
operating 0 … 45°C
storage – 25 … + 60°C
Room humidity Class F DIN 40040
Dimensions 105 x 115 x 71.5
Weight 0.6 kg
• Programs and yearly periods
24-hour programs 1…25
24-hour schedules 2…6
7-day programs 1…5
Yearly periods 0…25
• Setting range
Heating (or cooling) temperatures:
desired room temp. (B3 o B1+B3) 0…20 (25)…40 °C
desired flow temp. (B1) 0…20 (25)…60 °C
min. flow limit (B1+B3) 1…18 (8)…60 °C
max. flow limit (B1+B3) 1…50 (25)…60 °C
room heating flow limit (B1+B3) 0…40 °C
room cooling flow limit (B1+B3) 0…40 °C
outside default temp. (B1+B2) –30…–10 (35)…40 °C
flow default temp. (B1+B2) 1…50 (10)…60 °C
summer compensation Te–Ta (B2+B3) 0…6…20 °C
Preheating or dewpoint temperature (B4) :
min. limit 0…10…40 °C
adjustment – 9,5…0…+9,5 °C
Heat pump min. outside temp. –30…0…40 °C
1 - Alphanumeric display 6 - Fan warning
2 - + and – operating keys 7 - Humidifier warning
3-←and →operating keys 8 - Frostprotection warning
4 - Valve warnings 9 - Air damper warning
5 - Pump warning 10 - Readings alarm warning
11 - Malfunction warning
1 – Electronic component protection cover
2 – Support base with transformer, relays and terminal boards
3 – Screws for securing cover to base
4 – DIN rail securing elements
5 – DIN rail release lever
Temp. proportional band (base value):
Heating (room) (B3 o B1+B3) ±1…±2…±40 °C
Heating (flow) (B1) ±1…±10…±40 °C
Various temp. proportional band multipliers:
Heating flow (B1+B3) Pb amb x 0.5…5…20
Cooling temperatures Pb heat x 0.5…20
preheating (B4) Pb heat disch x 0.5…1…20
dew point (B4) Pb room heat x 0.5…1…20
air dampers (B2+B3) Pb room heat x 0.5…1…20
frostprotection battery (B7) Pb flow heat x 0.5…1…20
Temp. integral time 0…10…255 min.
Room or flow relative humidity (B6) :
humidification 0…50…99 %
dehumidification 0…60…99 %
Humidity proportional band ±0,5…±6…±40 %
Humidity integral time 0…10…255 min.
Y output control: – modulating
– 2 stage
– 3 stage
Ys output control 0…10 V–
Valve stroke time (modulating) 30…120…630 sec.
Season switching: – manual (display)
– external control
– auto based on outside temp.
– auto based on room temp.
– auto based on dates
Season switching outside temperatures:
winter 0…20…40 °C
summer 0…25…40 °C
Season switching delay based on outside temp.:
winter 1…24…60 ore
summer 1…4…60 ore
• Alarm setting
Telemanagement (PC-controlled calibrations)
Alarm call attempts 1…5…255
Alarm call interval 2…10…255 m
Alarms (PC-controlled calibrations)
Flow temp. diff. threshold (B1) 0…5…99 °C
Flow temp. diff. delay 2…30…255 min.
Room temp. diff. threshold (B3) 0…1…99 °C
Room temp. diff. delay 2…30…255 min.
Frostprotection temperature trip delay (B4) 2…5…255
min.
Humidity diff. threshold (B6) 0…10…100 %
Humidity diff. delay 2…30…255 min.
Warning :
In case of static, the equipment’s output controls may change
settings; original settings will be subsequently restored
automatically.
105
115
35
50.5 21
45
AIR TREATMENT
CONTROLLER
DTU 614
COSTER
VALVE HUMIDIFICATOR
+
–
▼
▼
12
°c
!
ALARMSPUMP FAN
ESC
FROSTPROT.
❄
DAMPER
1 2
4 5 6 7 8 9 11 310

3
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
7. WIRING DIAGRAM
B1 – Flow air temp. detector 0…60 °C
B2 – Outside temp. detector –30…+40 °C
B3 – Room or extract air temp. detector 0…40 °C
B4 – Preheating or dewpoint temp. detector 0…40 °C
B6 – Room humidity or extract air or flow air detector
B7 – Frostprotection detector
Y – 3-wire modulating control or 2- or 3-stage On-Off control
Ys – Air dampers or recuperator or vapor humidifier
0...10V– control
Ycs – Season switch
Mv – Fan control
Mp – Pump control
Mu – Adiabatic humidifier control
Rt°– Temp. calibration adjuster
RH – Humidity calibration adjuster
Rs – Outside air min. distance positioner
cs – Season switch : 1 = Winter, 2 = Summer.
Y : MODULATING
Run t ime : xx x s
M3.5
7.13-Wire Modulating Valve Control
7.2Electric Battery Control 7.3Direct Expansion Battery Control
Y:2STAGES
M3.5
2 equal loads
Y:3STAGES
M3.5
Y:2STAGES
M3.5
2 unequal loads
On-Off according to program in use (M0.2or M0.4)
Possible Season Switching (M3.2) modes: No ss; Winter; Summer; Based on Outside Temp. Based on Seasons
c1 open : On-Off according to Program setting (M0.2or M0.4)
c1 closed : Always On (for non-programmed operation)
To use c1 as only On-Off control, set OFF in the Program setting (M0.2and M0.4).
Possible Season Switching (M3.2) modes: No ss; Winter; Summer; Based on Outside Temp.; Based on Seasons
Ss Win: On-Off – according to Winter Program setting (M0.2)
Ss Sum: On-Off – according to Summer Program setting (M0.4)
Season switching (M3.2) must be: through ss control
Ss Win and c1 open : On-Off -according to Winter Program setting (M0.2)
Ss Win and c1 closed: On-Off -Always On, Winter;
Ss Sum and c1 open: On-Off -according to Summer Program setting (M0.4)
Ss Sum and c1 closed: On-Off -Always On, Summer;
To use c1 as only On-Off control, set OFF in the Program setting (M0.2and M0.4).
Season Switching (M3.2) mode must be : through ss + c1 control
7.5Use of D-E1-E2 Outputs – Examples
D
E1 E2
c1
D
E1 E2
ss – Control through manual or centralized season switch or through DTU 614-type controller with season switch.
c1 – on-off contact through manual control or through fan relay
0
24 V
~
24
24 0 024
Ys
Ys
Y0
7.4Vapor Humidifier Control (0…10 V–)
Ys-Cont ro l :
HUMI D I F .
M3.5
Y
1
Co 3
Cl
2
Op
B4
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
Ycs
1
Co 3
Win
2
Sum
24
1 2 3 4
0
D
E2
C BUS
E1 C
0C
T
Mv
NL
Mp
NL
B7
T
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3 RH B6
H
312
T
TT
G B8
Mu
NL
cs
0
Win Sum
Ys
Rs
132
Ys
24
1Y1
3
0
2
0
24 V
~
24
1234
LY.e N
1st 2nd
1 2 3 4
1st 2nd
Y.c
1 2 3 4
D
E1 E2
cs
Win Sum
Win
D
E1 E2
cs
Sum
c1

4
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
9. WHERE TO PLACE DEVICES
9.1Controller The controller should be placed in a dry environment, in compliance with acceptable environment conditions as
describedunder“TechnicalData”.Iflocatedinenvironmentsclassifiedas“hazardous”itshouldbeinstalledwithin
switchboards built in accordance with applicable regulations depending on hazard class.
The controller may be installed on the board’s bottom on a DIN rail, or in DIN modular boards
9.2Flow temperature detector B1
B1 must be installed downstream with respect to the flow fan.
9.3Outside temperature detector B2
STA 001 : It may be used in systems with constant outside air inflow. It must be installed upstream with respect to
the outside air dampers near the air intake.
SAE 001 : It should be used in systems where outside air flow is not constant. It must be installed outside the
building,on the northor northwest side,at a heightof at least3 m. abovethe ground, protectedfrom sunshine and
away from windows, doors, chimneys or other direct thermal interference.
9.4Room temperature or extract air detector – B3, or room temperature and humidity detector B3 + B6
SAB 010 or SAU 012 environment : It must be installed in a spot that reflects the average temperature and/or
humidityofasignificantroom(e.g.livingroom)ataheightof1.5...1.6m.abovethefloor,onaninsidewallawayfrom
windows, doors and sources of heat (no alcoves, scaffolds or hangings).
STA 010 extract air: It should be installed upstream with respect to the extract fan.
9.5Duct mounting humidity detector B6
Extract air: It must be installed upstream with respect to the extract fan.
Discharge air: It should be installed downstream with respect to the discharge fan.
9.6Preheating temperature detector B4
Itmustbe installed downstream withrespecttothehumidifying unit, preferablydownstreamofthedrop separator.
9.7Swimming pool window dew point temperature detector B4
It should be installed in contact with windows facing north.
9.8Frost protection temperature detector B7
Itshould beinstalled downstreamof thepreheating battery, in contact with thebattery (flushdetector SAF010) or
immersed on the battery outflow piping.
8. WIRING
Procede as follow :
• Separate the base from the cover
• Install the base onto the DIN rail and check that it is properly anchored by the securing elements (5.4)
•Performthewiringconnectionsasillustratedinthediagram,incompliancewithapplicableregulationsandusing:
– 1.5 mm2cables for supply voltage and relay control outputs
– 1 mm2cables for the detectors and remote control
– 1 mm2 cables for the C-Bus. See sheet T 021 for length limits
• Apply power (24 V~) and make sure voltage properly reaches terminals 24 and 0.
• Remove power, re-install the cover onto the base/terminal board, and fasten it with the 4 screws included in the
package (5.3).
It is recommended not to insert more than two cables in a single controller terminal. Use external terminals if
necessary.

5
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
10.3Telemanagement Address
In telemanagement mode, controllers must have an address sequence number in order to be
identified by the central computer or by the local PC(s),.
Additionally, controllers can be subdivided into groups.
Note When in non-telemanagement mode, the address should be saved (–).
To cancel values, press + and – keys simultaneously.
10.4Sending Alarms
• Sending alarms : NO = No alarms are sent
YES= Alarms are sent to the central computer and are signaled by the word
“ALARM” appearing on the display
• Teleman Passw : NO = Password disabled
YES= Password enabled
M3.8
Addr ess : –
Group : –
M3.7
SendingAl arms:NO
PassWTeleman :NO
10. COMMUNICATION
10.1C-Bus Telemanagement Communication (for more detailed information please see Technical Sheet T 021)
Through the C-Bus output, DTU 614 can be managed remotely (two-way data communication) by
means of one or more local PC(s) and/or a remote central computer via telephone network.
From the PC(s) it is possible to view and/or change the following:
– data and value settings on the controller display pages, and configuration data dedicated to
telemanagement only (see “Technical Data”)
– system component’s operating status (pumps, accessory in general)
– acquire system-generated alarms
– view detector readings (temperatures: outside, room, flow, etc.)
10.2C-Bus wiring
C
0C C 0C C 0C
Controller
with Address
No. 1
Controller
with Address
No. 2
Controller
with Address
No. ...
to modem and/or
convertor for
local PC

6
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
B2 – Outside temp. detector (for compensation only)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.1– Room temperature and humidity control
Detectors Layout
–23–56–8
M3.1
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation only)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.2– Room temperature and humidity control with flow temperature limits
Detectors Layout
123–56–8
M3.1
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation only)
B6 – Room or extract humidity detector
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.3– Flow temperature and room or flow humidity control
Detectors Layout
12––56–8
M3.1
11. TEMPERATURE AND HUMIDITY CONTROL – EXAMPLES
B6B3
B2
DTU 614
T
HT
RHRt°
+
+
+
T H
B6B3
B2
M
B5
B4MB3B2MB1
DTU 614
B6
Rt°
B3
B7 G
RH
B8
B6
H
312
T T
B2
B1
M
B5
B4MB3B2MB1
DTU 614
B6
Rt°
B3
B7 G
RH
B8
B6
H
312
T
T T
B2
DTU 614
T
B1
T H
B6
+
+
+
RHRt°
B6
HT H
B6
B2
B1
M
B5
B4MB3B2MB1
DTU 614
B6
Rt°
B7 G
RH
B8
B6
H
312
T
T
B6B3
B2
DTU 614
T
B1
T
HT
+
+
+
RHRt°
T H
B6B3
T H
B6

7
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
12. USE OF YS OUTPUT– EXAMPLES
B2 – Outside temp. detector
B3 – Room or extract temp. detector
Ys – Progressive air damper control
Rs – Outside air min. distance positioner (optional)
12.1– Temperature comparison air damper optimization
B2 – Outside temp. detector (for compensation only)
B3 – Room or extract temp. detector
Ys – Recuperator
Rt°– Temperature set point adjuster (optional)
U1 – 0...10 V- into On-Off signal converter
12.4– Vapor humidifying unit control (0...10 V–)
Ys-Cont rol :
DEHUMIDI F I CAT ION
M3.6
12.3– Outside air control for room dehumidification (swimming pools) with dew point control (optional)
– 1 Heating modulating battery
B1 – Flow temp. detector
B3 – Room or extract temp. detector
B4 – Dew point temp. detector (optional)
B6 – Room or extract humidity detector
B7 – Battery antifreeze detector
Mp – Pump On-Off control
Mv – Fan On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Rs – Outside air min. distance positioner (optional)
Y – Heating modulating control
Ys – Progressive air damper control
(dehumidification)
Use De t ec t or B4
DEWPOINT
M3.3
Detectors Layout
–23–––––
M3.1
Ys - Con t ro l :
DAMP. TEM
M3.6
B3
B2
Ys
DTU 614
T
T
Rs
+
+
+
Rs
132
B2
0
24 V
~
24
M
B5
B4MB3B2MB1
DTU 614
B6
24 0 0
B3
B7 G
24
D
E2B8 E1 C
Ys 0C
Ys
T T 24
1Y1
3
0
2
B3
B2
DTU 614
T
T
M
Ys
U1
+
+
+
B2
0
24 V
~
24
M
B5
B4MB3B2MB1
DTU 614
B6
24 0 0
B3
B7 G
24
D
E2B8 E1 C
Ys 0C
U1
T T
24
1Y1
3
0
2
Detectors Layout
–23–––––
M3.1
Detectors Layout
1–34 5 6– 8
M3.1
Ys - Con t ro l :
RECUPERATOR
M3.6
Y : MODULATING
Run Time : xxxs
M3.4
Y:HEATING
M3.5
Y
Ys RH B4
Rs
Rt°
T
+
B6B3
DTU 614
B1
T
HT
B7
T
Mp
Mv
DTU 614
Ys
+
+
+RH
H
B6
B6
HT H
B6
0
24 V
~
24
M
B5
B4MB3B2MB1
DTU 614
B6
24 0 0
B7 G
24
D
E2B8 E1 C
Ys 0C
Ys
Y
0
RH
B6
H
312
B6 – Room or extract humidity detector
RH – Humidity set point adjuster (optional)
Ys – Progressive humidifier control
Ys-Cont rol :
HUMIDIFICATION
M3.6
Detectors Layout
6– 8
M3.1
12.3– Heat recuperator On-Off control
Rs
132
Y
1
Co 3
Cl
2
Op
B1
M
B5
B4MB3B2MB1
11 12 13 14
DTU 614
B6
5 6 7 24 0 0 8 9 10
Rt°
B3
B7 G
RH
24
1234
D
E2B8 E1 C
Ys 0C
B6
H
312
Ys
T
T
24
1Y1
3
0
2
B4
T
B7
T
Mv
NL
Mp
NL
0
24 V
~
24

8
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
13. USE OF Y OUTPUT– EXAMPLES
13.2– 1 Winter heating, summer cooling modulating battery
– 1 Humidifying On-Off unit
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
B7 – Battery frostprotection detector
Mu – Humidifier On-Off control
Mv – Fan On-Off control
Mp – Pump On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – Heating modulating control
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
B7 – Frostprotection detector
Mu – Humidifier On-Off control
Mv – Fan On-Off control
Mp – Pump On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – Winter heating, summer cooling modulating
control
13.1– 1 Preheating modulating battery
– 1 Humidifying On-Off unit
13.3– 1 Heating On-Off battery
– 1 Humidifying On-Off unit
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
Mu – Humidifier On-Off control
Mv – Fan On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – On-Off heating control
Detectors Layout
123–5678
M3.1
Y : MODULATiNG
Run T ime : xx s
M3.4
Y:HEATING
M3.5
Season Swi tch ing
NO
M3.2
Detectors Layout
123–567 8
M3.1
Y : MODULATING
Run T ime : xx x s
M3.4
Y:HEATING
M3.5
Season Swi tch ing
XXXXXXXXX
M3.2
Detectors Layout
123–56– 8
M3.1
Y:2STAGES
M3.4
Y:HEATING
M3.5
Season Swi tch ing
NO
M3.2
YMu
+
B6B3
B2
DTU 614
T
B1
T
HT
RHRt°
Mp
Mv
B7
T
YMu
+
–
B6B3
B2
DTU 614
T
B1
T
HT
RHRt°
Mp
Mv
B7
T
YMu
B6B3
B2
DTU 614
T
B1
T
HT
RHRt°
Mv
Y
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3 RH B6
H
312
T
TT
G B8
Mu
NL
Ys
cs
0
Win Sum
1º 2º
0
24 V
~
24
Y
1
Co 3
Cl
2
Op
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
Mp
NL
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3 RH B6
H
312
T
TT
G B8
Mu
NL
Ys
cs
0
Win Sum
B7
T
0
24 V
~
24
Y
1
Co 3
Cl
2
Op
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
Mp
NL
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3 RH B6
H
312
T
TT
G B8
Mu
NL
Ys
B7
T
0
24 V
~
24

9
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
14. 3 OR 4 BATTERY SYSTEM CONTROL (DTU644 + DTU 614) – EXAMPLES
14.1– 1 Winter preheating with antifreeze control modulating battery
– 1 Summer cooling/dehumidifying modulating battery
– 1 post-heating modulating battery
– 1 Humidifying On-Off unit B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B4 – Preheating temperature detector
B6 – Room or extract humidity detector
B7 – Frostprotection detector
Mv – Fans
Mu – Humidifier On-Off control
Y1 – Winter preheating modulating control
Y2 – Summer cooling/dehumidifying modulating control
Y3 – Post-heating modulating control
Rt°– Temperature set point adjuster (optional)
RH – Dehumidification set point adjuster (optional)
Detectors Layout
–––––678
M3.1
Detectors Layout
1 2 3– 5 6––
M3.1
Y1 : MODULATING
Run T ime :xx xs
M3.4
Y1 -Wi n :PREHEAT .
Y1-Sum:OFF
M2.6
Y2 : MODULATING
Run Time :xxxs
M2.7
Y2-Win:OFF
Y2 - Sum: COOL+DEHU
M2.8
Y3-Win:HEATING
Y3-Sum:HEATING
M2.10
Season Swi tching
FR CONTROL ss
M3.2
Y3: MODULATING
Run t ime : xxxs
M2.9
Season Swi tch ing
XXXXXXXXX
M3.2
13.4– 1 Winter heating, summer cooling modulating battery with heat pump season switching
– 1 Humidifying On-Off unit
B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
B7 – Frostprotection detector
Mu – Humidifier On-Off control
Mv – Fan On-Off control
Mp – Pump On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – Winter heating, summer cooling
modulating control
Ycs – Heat pump season control
13.5– 1 Winter heating, summer cooling On-Off battery with heat pump season switching
– 1 Humidifying On-Off unit B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B6 – Room or extract humidity detector
Mu – Humidifier On-Off control
Mv – Fan On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – Winter heating, summer cooling
On-Off control (heat pump)
Ycs – Heat pump season control
Detectors Layout
123–5678
M3.1
Y : MODULATING
Run T ime : xxx s
M3.4
Y-Win:HEATING
Y - Sum: COOLI NG
M3.5
Season Swi tching
XXXXXXXXX
M3.2
Detectors Layout
123–5678
M3.1
Y:2STAGES
M3.4
Y-Win:HEATING
Y - Sum: COOLI NG
M3.5
Season Swi tching
XXXXXXXXX
M3.2
Use de t ec tor B4
PREHEAT I NG
M3.3
Output 8-9-10:
CONTROL
M2.3
Y : MODULATING
Run t ime : xxxs
M3.4
Y -Wi n : FROSPROT.
Y-Sum:OFF
M3.5
YMu
+
–
B6B3
B2
DTU 614
T
B1
T
HT
RHRt°
Mp
Mv
Ycs
B7
T
YYcs Mu
B6B3
B2
DTU 614
T
B1
T
HT
RHRt°
Mv
+
–
H T
TT
T
➚
➚
B6
B1
B2
Y1 Y2
B4
Mu
Mv
Rt°RH
B7
B3
Y3
T
+ +–
DTU 644
DTU 614
Y
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
Mp
NL
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3
T
TT
G B8
Mu
NL
Ys
cs
0
Win Sum
Ycs
1
Co 3
Cl
2
Op CoWinSum
0
24 V
~
24
RH
B6
H
312
B7
T
Y
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
MB3 B4B2 MB5 B6 B7
B2B1 Rt°B3 RH B6
H
312
T
TT
G B8
Mu
NL
Ys
cs
0
Win Sum
Ycs
1stSt
2ndSt CoWinSum
0
24 V
~
24
Y1
1
Co 3
Cl
2
Op
B2
B1
M
B5
B4MB3B2MB1
11 12 13 14
DTU 644
B6
5 6 7 24 0 0 8 9 10
Rt°
B3
Y2
B7 G
24
1234
D
E2B8 E1 C
Ys 0C
B6
H
312
1
Co 3
Cl
2
Op
T
T T
0
24 V
~
24
Y3
1
Co 3
Cl
2
Op
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2E1 C
0C
Mv
NL
B7
M
B3 B4B2 MB5 B6 B7 G B8
T
0
24 V
~
24
Ys
Mu
NL
Mv
cs
0
Win Sum
B4
T
RH

10
E 121 - DTU 614 C2 Eng. 04.07.01
We reserve the right to make changes without notice
COSTER
14.2– 1 Winter preheating modulating battery with antifreeze control
– 1 Summer cooling/dehumidifying modulating battery
– 1 Winter post-heating modulating battery
– 1 Summer post-heating On-Off battery
– 1 Humidifying On-Off unit B1 – Flow temp. detector
B2 – Outside temp. detector (for compensation)
B3 – Room or extract temp. detector
B4 – Preheating temperature detector
B6 – Room or extract humidity detector
B7 – Frostprotection detector
Mu – Humidifier On-Off control
Mv – Fans
Y – Winter preheating modulating control
Y1win – Winter postheating modulating control
Y2 – Summer cooling/dehumidifying modulating control
Y3sum – Summer postheating On-Off control
Rt°– Temperature set point adjuster (optional)
RH – Dehumidification set point adjuster (optional, for humidifying only)
Detectors Layout
123–56––
M2.1
Y1 : MODULATING
Run t ime : xxxs
M2.5
Y1-Win:HEATING
Y1-Sum:OFF
M2.6
Y2 : MODULATING
Run t ime : xxxs
M2.7
Y2-Win:OFF
Y2 - Sum:COOL+DEHU
M2.8
Y3-Win:OFF
Y3-Sum:HEATING
M2.10
Season Swi tch ing
FR CONTROL cs
M2.2
Y3: 2 STAGES
M2.9
Use de t ec t o r B4
PREHEAT I NG
M3.3
Y : MODULATI NG
Run t ime : xxxs
M3.4
Y -Wi n : PREHEAT .
Y-Sum:OFF
M3.5
Output 8-9-10:
CONTROL
M2.3
Season Swi tching
XXXXXXXXX
M3.2
14.3– 1 Winter preheating with antifreeze control and summer cooling/dehumidifying modulating battery
– 1 Winter post-heating modulating battery
– 1 Summer post-heating On-Off battery
– 1 Humidifying On-Off unit
B1 – Flow temperature detector
B2 – Outside temperature detector (for compensation)
B3 – Room or extract temp. detector
B4 – Preheating temperature detector
B6 – Room or extract humidity detector
B7 – Frostprotection detector
Mu – Adiabatic humidifier On-Off control
Mv – Fans
Y – Winter preheating control
Y1iwin – Winter postheating control
Y2 – Summer cooling/dehumidifying control
Y3sum – Summer postheating control
Rt°– Temperature set point adjuster (optional)
RH – Dehumidification set point adjuster (optional, for humidifying only)
De t ec t ors Layout
––––––78
M3.1
Detectors Layout
123–56––
M2.1
Y1 : MODULATING
Run t ime : xxxs
M2.5
Y1 -Wi n : PREHEAT .
Y1 - Sum:COOL+DEHU
M2.6
Y2 : MODULATING
Run t ime :xxxs
M2.7
Y2-Win:HEATING
Y2-Sum:OFF
M2.8
Y3-Win:OFF
Y3-Sum:HEATING
M2.10
Season Swi tch ing
FR CONTROL ss
M2.2
Y3: 2 STAGES
M2.9
Y : MODULATI NG
Run t ime : xxxs
M3.4
Y-Win:FROSTPR.
Y-Sum:OFF
M3.5
Use de t ec t or B4
PREHEAT I NG
M2.4
Output 8-9-10:
CONTROL
M2.3
Season Swi tching
XXXXXXXXX
M3.2
De t ec t ors Layout
–––4––7 8
M3.1
B2
B1
M
B5
B4MB3B2MB1
11 12 13 14
DTU 644
B6
5 6 7 24 0 0 8 9 10
Rt°
B3
Y2
B7 G
24
1234
D
E2B8 E1 C
Ys 0C
B6
H
312
1
Co 3
Cl
2
Op
Y3.sum
T
T T
Y
1
Co 3
Cl
2
Op
B4
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2 C
0C
T
Mv
NL
MB3 B4B2 MB5 B6 B7 E1G B8
Mu
NL
1
Co 3
Cl
2
Op
Y1.win
1º 2º
0
24 V
~
24 0
24 V
~
24
Ys
Mv
cs
0
Win Sum
B7
T
RH
H T
TT
T
➚
B6
B1
B2
YY2
B4
Mu
Mv
Rt°
B7
B3
Y1.win
T
+ +–
DTU 644
DTU 614
Y3.sum
➚
RH
B2
B1
M
B5
B4MB3B2MB1
11 12 13 14
DTU 644
B6
5 6 7 24 0 0 8 9 10
Rt°
B3
Y2.win
B7 G
24
1234
D
E2B8 E1 C
Ys 0C
B6
H
312
1
Co 3
Cl
2
Op
Y3.sum
T
T T
MB1
11 12 13 14
DTU 614
56 7 24 0 08 9 10
24
1 2 3 4
D
E2 C
0C
Mv
NL
Mp
NL
MB3 B4B2 MB5 B6 B7 E1G B8
Mu
NL
1
Co 3
Cl
2
Op
Y1
1º 2º
Mv
0
24 V
~
24 0
24 V
~
24
B4
T
Ys
B7
T
RH cs
0
Win Sum
H T
TT
T
➚
B6
B1
B2
Y1
B4
Mu
Mv
Rt°
B7
B3
Y2.win
T
+
–+
DTU 644
DTU 614
Y3.sum
➚
RH