Coster DTU 614 C2 Eng. Manual

TEMPERATURE AND HUMIDITY CONTROLLER
FOR ONE-BATTERY AIR HANDLING UNIT
C BUS
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
or
• 1 adiabatic humidifying unit with On-off control
or
• 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. FEATURES
The 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
– external air control for room dehumidification with compensation of dew temperature on glass windows and
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.
3. ACCESSORIES
No. Description
1 Duct flow air temperature detector
1 Duct outside air temperature detector
or wall outside air temperature detector SAE 001
1 Duct extract air temperature detector
or room air temperature detector
1 Duct pre-heating temperature detector
or dew point temperature detector
1 Room relative humidity and temperature detector
or duct relative humidity detector
or duct relative humidity detector (swimming pools) SUR 051
1 Battery frostprotection temperature detector – flush SAF 010
or immersed
1 0...10 V – to 2-stage On-Off Duct converter
1 Temperature set-point adjuster
1 Relative humidity set-point adjuster
1 Outside air minimum distance positioner
We reserve the right to make changes without notice
COSTER
electric batteries with 1-,2-, or 3-stage On-Off control
direct expansion batteries with 1- or 2-stage On-Off control
vapor-operated, with 0...10 V– control (alternative to air damper control)
STA 010
STA 001
STA 010
SAB 010
STA 010
STV 010
SAU 012
SUR 012
SIH 010
CSV 304
CDB 100
CDB 200
PCS 04
Type Application Range
0...60 °C
–30...+40 °C
–30...+40 °C
0...40 °C
0...40 °C
0...40 °C
0...40 °C
0...40 °C ; 20...80 %
20...80 %
10...90 %
0...40 °C
0...40 °C
–
± 5 °C
± 5 %H
–
E 121 - DTU 614
C2 Eng. 04.07.01
E 121
04.07.01
Code Data sheet
Sensing element t°
NTC 10 kΩ B1
NTC 1 kΩ B2
NTC 1 kΩ B2
NTC 10 kΩ B3
NTC 10 kΩ B3
NTC 10 kΩ B4
NTC 10 kΩ B4
NTC 10 kΩ B3-B6
– B6
– B6
NTC 10 kΩ B7
NTC 10 kΩ B7
– U1
– Rt°
– RH
– Rs
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1