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
11
5
35
50.5
21
45
AIR TREATMENT
CONTROLLER
DTU 614
COSTER
VALVE
HUMIDIFICATOR
+
–
▼
▼
1
2
°
c
!
ALARMS
PUMP
FAN
ESC
FROSTPROT.
❄
DAMPER
1
2
4
5
6
7
8
9
11
3
10
