Coster XTU 614 User manual

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E 134 - XTU 614 C1 Eng. 22.11.10 AM REV. 03
We reserve the right to make changes without notice
COSTER
TEMPERATURE AND HUMIDITY CONTROLLER
FOR ONE-BATTERY AIR HANDLING UNIT
XTU 614 C1 Eng.
• Temperature & relative humidity control in air handling units
• 24-hour, 7-day, and annual programming
• Power supply 24 V~, DIN rail mounting
• Communication systems:
– C-Bus: XTU 614 is already wired for Telemanagement
To enable Telemanagement use C-Bus Plug-in, model ACB 460 C1 or later,
to be ordered separately as an accessory.
1. APPLICATION
XTU 614 is designed for temperature and humidity control in air handling units composed of:
• 1 battery for hot/chilled water or vapour with 3-wire modulating controll
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 vapour-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 regenerator with 0...10 V- or On-Off control (CSV 304 converter).
The controller can be included in a Telemanagement system through the C-Bus connection.
2. FEATURES
The main features of XTU 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:
– winter and summer room temperature control with optional summer external compensation; flow limits to
prevent cold drafts, hot air stratification and condensing in the air ducts.
– flow temperature control (heating or cooling) with optional winter and summer compensation
– pre-heating temperature control according to room temperature and humidity
– battery frost protection temperature control
• One On-off output for winter adiabatic humidifying unit control
• One 0...10 V- progressive output, configurable forr:
– control of air mixing according to temperature, with minimum limit opening external air
– external air control for room dehumidification with compensation of dew point temperature on glass windows
and with minimum limit external air
– On-Off control heat regenerator according to room-outside temperature comparison
– adjustment vapour humidifier by means of 0...10 V- control
• One 3-wire On-Off output for manual or automatic season switching.
• Two On-Off outputs for control fan and pump according to timed program in use
• Winter battery frost protection temperature control
• Programming by means of 25 24-hour programs, five 7-day programs, and 25 annual period programs
• Variation of temp. and humidity set-points by remote control
• Alarms for short and open sensor circuits and for system and equipment malfunction.
• Enabled for data transmission via C-Bus with local PCs or remote Telemanagement PC.
To enable data transmission and Telemanagement use C-Bus Plug-in type ACB 460 C1 or later
To communicate locally with a PC use test Plug-in ACX 232
3. ACCESSORIES
No. Description Type Application Range Sensing element t° Code Data sheet
1 Discharge air temperature duct sensor STA 010 0…60 °C NTC 10 kΩ B1 –
1 Outside air temperature sensor - duct type STA 001 –30…+40 °C NTC 1 kΩ B2 –
or wall type SAE 001 –30…+40 °C NTC 1 kΩ B2 –
1 Extract air temperature sensor - duct type STA 010 0…40 °C NTC 10 kΩ B3 –
or room type SAB 010 0…40 °C NTC 10 kΩ B3 –
1 Pre-heating temperature sensor - duct type STA 010 0…40 °C NTC 10 kΩ B4 –
or dew point STV 010 0…40 °C NTC 10 kΩ B4 –
1 Room relative humidity and temperature sensor SAU 012 0…40 °C ; 20…80 % NTC 10 kΩ B3-B6 –
or duct relative humidity sensor SUR 012 20…80 % – B6 –
or duct relative humidity sensor (swimming pools) SUR 051 10…90 % – B6 –
1 Battery frost protection temp. sensor - cable type SAF 010 0…40 °C NTC 10 kΩ B7 –
or immersion type SIH 010 0…40 °C NTC 10 kΩ B7 –
1 0…10 V – to 2-stage On-Off converter CSV 304 – – Y –
1 Temperature set-point adjuster CDB 100 ± 5 °C – Rt° –
1 Relative humidity set-point adjuster CDB 200 ± 10 % – RH –
1 Outside air minimum distance positioner PCS 04 – – Rs –
Accessories for Telemanagement
1 Plug-in for communicating via C-Bus ACB 460 C1 – – – –
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BUS
C
OPTIONAL

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E 134 - XTU 614 C1 Eng. 22.11.10 AM REV. 03
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COSTER
5. OVERALL DIMENSIONS
6. FACIA
4. TECHNICAL DATA (default values in bold print)
• Electrical
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
Enclosure Modulo DIN 6E
Installation 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 annual periods
24-hour programs 1…25
24-hour schedules 2…6
7-day programs 1…5
Annual periods 0…25
• Setting range
Heating (or cooling) temperatures:
desired room (B3 or B1+B3) 0…20 (25)…40 °C
desired flow (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 design temp. (B1+B2) –30…–10 (35)…40 °C
design flow (B1+B2) 1…50 (10)…60 °C
summer compensation Te–Ta (B2+B3) 0…6…20 °C
Pre-heating or glass 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
Temp. Proportional Band (base value):
Heating (room) (B3 or B1+B3) 1…2 …40 °C
1 - Alphanumeric display 7 - Humidifier warning
2 - + and – operating keys 8 - Frostprotection warning
3 - ← and →operating keys 9 - Air damper warning
4 - Valve warnings 10 - Readings alarm warning
5 - Pump warning 11 - Malfunction warning
6 - Fan warning 12 – Plug-in type ACB 460 C1 for
C-Bus communication
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
Pre-heating (B4) PB heat disch x 0.5…1…20
Dew point glass (B4) PB room heat x 0.5…1…20
Air dampers (B2+B3) PB room heat x 0.5…1…20
Aux. heating (B3) PB room heat x 0.5…1…20
Aux heating (B1 or B1 + B3) 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 %
Proportional Band humidity 0.5…6 …40 %
Integral time humidity 0…10…255 min
Y output control: – modulating
– 2 stage
– 3 stage
Ys output control 0…10 V–
Valve run time (modulating) 30…120…630 s
Season switching: – manual from display
– by external control
– auto based on outside temp.
– auto based on room temp.
– automatic by 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 h
Summer 1…4…60 h
• Alarm setting
Telemanagement (from PC)
Alarm call attempts 1…5…255
Interval between calls 2…10…255 m
Alarms (settings from PC)
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
Delay trip Frosprot temperature (B4) 2…5…255 min
Humidity diff. threshold (B6) 0…10…100 %
Humidity diff. delay 2…30…255 min
• Telemanagement
Speed C-Bus chosen from 1200, 2400, 4800, 9600 bauds
Warning :
In case of static, the equipment’s output controls may change
settings; original settings will be subsequently restored auto-
matically.
12
4 5 6 7 8 9 11 310 12
1 – Protective cover for electronic components
2 – Base with transformer, relay & terminal blocks
3 – Screws for fixing cover- base
4 – DIN rail securing elements
5 – DIN rail release lever
6 – Plug-in for C-Bus communication
1
2
3
3
4
56

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COSTER
7. WIRING DIAGRAM
B1 – Discharge air temp. sensor 0...60°C
B2 – Outside temp. sensor –30...+40°C
B3 – Room or extract air temp. sensor 0...40°C
B4 – Pre-heating or dew point temp. sensor 0...40°C
B6 – Room humidity or extract air or discharge air sensor
B7 – Frost protection sensor
Y – 3-wire modulating control or 2- or 3-stage On-Off
Ys – 0...10V- control of air dampers or heat recuperator or
vapour humidifier
Ycs – Season switch
Mv – Fan control
Mp – Pump control
Mu – Adiabatic humidifier control
Rt° – Heating setting adjuster
RH – Humidity setting adjuster
Rs – Outside air minimum distance positioner
cs – Season switch:1 = winter, 2 = summer
C-Bus – Transmission Telemanagement
Y : M O D U L A T I N G
R u n t i m e : x x x s
M3.5
7.1 3-wire modulating valve control
7.2 Electric battery control 7.3 Direct expansion battery control
Y : 2 S T A G E S
M3.5
2 equal loads
Y : 3 S T A G E S
M3.5
Y : 2 S T A G E S
M3.5
2 unequal loads
On-Off according to program in use (M0.2 or M0.4)
Season Switching (M3.2) can be: No; Winter; Summer; By Outside T; By Room T; By Seasons
c1 open : On-Off according to Program setting (M0.2 or M0.4)
c1 closed : Always On (for switchings outside program)
To use c1 as only On-Off control set OFF in Programs in use (M0.2 and M0.4).
Season switch (M3.2) can be: No; Winter; Summer; From Outside T; From Room T; From Seasons.
cs Win : On-Off by Winter Program in use (M0.2)
cs Sum: On-Off by Summer Program in use (M0.4)
Season switching (M3.2) must be : by cs control
cs Win & c1 open : On-Off -according to Winter Program setting (M0.2)
cs Win & c1 closed: On-Off -Always On, Winter
cs Sum & c1 open : On-Off -according to Summer Program setting (M0.4)
cs Sum & c1 closed: On-Off -Always On, Summer
To use c1 as only On-Off control, set OFF in the Program setting (M0.2 and M0.4).
Season Switching (M3.2) must be : As control cs + c1
7.5 Use of D-E1-E2 outputs – examples
cs – Control of manual or centralised season switching or by controller with season switch type XTU 614.
c1 – On-Off switch for manual control or by fan heavy duty switch,
0
24 V ~
24
24 0 024
Ys
Ys
Y0
7.4 Vapour humidifier control (0…10 V–)
Y s - C o n t r o l :
H U M I D I F .
M3.5
1
2
3
4
L
Y.e
N
1st
2nd
1
2
3
4
1st 2nd
Y.c
1
2
3
4
MYs B1 B2 B3 B4 B5 B6 DC
0C
T T
M M B7 B8G
T
TT
Co Co Sum Win
Cl
Op
0Y1
24
124 24 0 0 2 3 46 7 8 9 11 12 13 1410
XTU 614
YYcs
5
Rs Ys
B1 B2 B3 B4 B6 B7 RHRt˚ c � 8 � � �s
WinSum
C BUS
MBG
H
24 0 N N L NL L
Mu Mp Mv
24 V ~

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COSTER
9. SITING DEVICES
9.1 Controller
The controller should be sited in a dry environment which meets the relevant ambient conditions given under 4.TE-
CHNICAL DATA “, If installed in a location classified as “Hazardous” it must be installed in a cabinet for electrical
equipment constructed according to the regulations in force for the class of danger concerned.
The controller can be mounted on a DIN rail and housed in a standard DIN enclosure.
9.2 Discharge air temperature sensor B1
B1 must be installed downstreamof the discharge air fan.
9.3 Outside temperature sensor B2
STA 001: It may be used in systems with constant inflow of outside air. It must be installed upstream of the outside
air dampers near the air intake.
SAE 001: It should be used in systems where the intake of outside air is not constant. It must be installed outside
the building, on the north or northwest side, at a height of at least three metres from the ground, protected from
sunlight and as far as possible from windows, doors, chimneys or other direct sources of thermal interference.
9.4 Room temperature or extract air sensor B3, or room temperature and humidity sensor B3 + B6
Room sensors SAB 010 or SAU 012: Must be installed in a spot that represents the average temperature and/or
humidity of a significant room (e.g. living room) at a height of 1.5 to1.6 metres
from the floor, on an inside wall away from windows, doors and sources of
heat and corners, bookcases and curtains should be avoided
STA 010 extract air: Mustbe installed upstream of the extract air fan..
9.5 Air duct humidity detector B6
Extract air SUR 012 or SUR 051: It must be installed upstream of the extract air fan.
Discharge air SUR 012 or SUR 051: It must be installed downstream of the discharge air fan.
9.6 Pre-heating temperature sensor or swimming pool glass dew point B4
Pre-heating STA 010: Must be installed downstream of the humidifying unit, preferably downstream of the drop
separator.
Windows dew point STV 010: Must be installed in contact with the glass most exposed to north.
9.7 Frost protection temperature sensor B7
SAF 010: It should be installed downstream of the pre-heating battery, in contact with the battery itself (cable-type
sensor SAF 010) or immersion type on the battery outflow piping.
8. WIRING
Proceed as follows :
• Separate base and cover
• Mount base on DIN rail and check that securing elements (5.4) hold it firmly in place.
• Carry out wiring according to the diagram and in observance of the relevant regulations in force, and using cables of :
– 1.5 mm2 for power and relay control outputs
– 1 mm2 for sensors and remote control
– 1 mm2 for C-Bus and C-Ring. For wire length limits please see technical data sheets T 021 and T 022
• Reposition the cover on the base / terminal block and fasten with the 4 screws supplied (5.3).
• Check that voltage is correct and supplied by the dedicated auxiliary line, measuring it upstream of the protec-
tion (circuit breaker, fuse....).
• Power up the device.
You are advised not to insert more than two cables in a single terminal of the controller and if necessary to use external junction
boxes.

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COSTER
10. COMMUNICATION
10.1 C-Bus Telemanagement Communication (for more detailed information please see Technical Sheet T 021)
XTU 614 provides:
- remote Telemanagement by means of C-Bus Plug-in type ACB 460 C1
- local communication (e.g. setting via PC) with Test Plug-in ACX 232
Telemanagement is two-way, with 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 change data and values entered on the controller display pages, and the configuration data
dedicated to Telemanagement only (see 4.Technical Data)
- check the operational status of the site components (pumps, accessories in general)
- to acquire system-generated alarms
- to view sensor readings (temperatures: outside, room, flow, etc.)
10.2 C-Bus wiring for local or remote Telemanagement
Each controller must be equipped
with the correct model of the C-Bus
Plug-in of the required type for the
controller in question
Observations : – Before communicating, ensure that the address entered in the controller is the address with which you wish
to communicate via PC.
– It is advisable to use a portable PC powered by battery with the connection to 230 Volts unplugged, since
the earth (0 volts) of the controller is connected to that of the RS 232 and so to that of the PC. By connecting
the two earths together the currents may be dispersed, if the earths have not been well made and if the PC
has its 0 volt connected directly to the central pole of the plug (as is usual).
– The transmisssion speed can be adjusted (1200, 2400, 4800, 9600 bps).
A speed suitable for all the devices connected in C-Bus must be chosen.
ACCESSORIES:
–Test Plug-in = ACX 232
– handy kit = KIT RS 232
The “handy kit” contains the 2
cables & other useful acces-
sories.
10.3 Connection to PC for local communication via test Plug-in ACX 232
Extract the C-Bus Plug-in and insert the test Plug-in ACX 232; use a standard cable to connect the RS232 plug to
the PC (the cables are included in the “HANDY KIT”.
If the PC has only USB sockets use a standard RS232 to USB conversion cable.

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COSTER
B2 – Outside temp. sensor (for compensation only)
B3 – Room or extract air temp. sensor
B6 – Room humidity or extract air sensor
Rt° – Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.1 – Room temperature and humidity control
D e t e c t o r s L a y o u t
– 2 3 – 5 6 – 8
M3.1
B1 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation only)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
Rt° – Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.2 – Room temperature and humidity control with discharge air temperature limits
D e t e c t o r s L a y o u t
1 2 3 – 5 6 – 8
M3.1
B1 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation only)
B6 – Discharge air or room or extract air humidity sensor
Rt° – Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
11.3 – Discharge air temperature and room or discharge air humidity control
D e t e c t o r s L a y o u t
1 2 – – 5 6 – 8
M3.1
11. TEMPERATURE AND HUMIDITY CONTROL – EXAMPLES
M
B5
B4
M
B3
B2 GB7B6 B8
M
B1
TTH
M
B
G
B2 B3 Rt B6 RH
XTU 614
GB7B6 B8
M
B5
B4
M
B3
B2
M
B1
T
TTH
M
B
G
B2B1 B3 Rt B6 RH
XTU 614
GB7B6 B8
M
B5
B4
M
B3
B2
M
B1
T
TH
M
B
G
B2B1 Rt B6 RH
XTU 614

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COSTER
12. USE OF YS OUTPUT– EXAMPLES
B2 – Outside temp. sensor
B3 – Room or extract air temp. sensor
Ys – Progressive air damper control
Rs – Outside air min. distance positioner (optional)
12.1 – Temperature comparison air damper optimization
B2 – Outside temperature sensor
B3 – Room or extract air temp. sensor
Ys – Recuperator
U1 – 0...10 V– to On-Off signal converter
12.4 – Vapor humidifying unit control (0...10 V–)
Y s - C o n t r o l :
D E H U M I D I F I C A T I O N
M3.6
12.3 – Outside air control for room dehumidification (swimming pools) with dew point control (optional)
– 1 Heating modulating battery
B1 – Discharge air temp. sensor
B3 – Room or extract air temp. sensor
B4 – Dew point temp. sensor (optional)
B6 – Room or extract air humidity sensor
B7 – Battery antifreeze sensor
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)
U s e D e t e c t o r B 4
D E W P O I N T
M3.3
D e t e c t o r s L a y o u t
– 2 3 – – – – –
M3.1
Y s - C o n t r o l :
D A M P . T E M
M3.6
D e t e c t o r s L a y o u t
– 2 3 – – – – –
M3.1
D e t e c t o r s L a y o u t
1 – 3 4 5 6 – 8
M3.1
Y s - C o n t r o l :
R E C U P E R A T O R
M3.6
Y : M O D U L A T I N G
R u n T i m e : x x x s
M3.4
Y : H E A T I N G
M3.5
B6 – Room or extract air or discharge air
humidity sensor
RH – Humidity set point adjuster (optional)
Ys – Progressive humidifier control
Y s - C o n t r o l :
H U M I D I F I C A T I O N
M3.6
D e t e c t o r s L a y o u t
6 – 8
M3.1
12.3 – Heat recuperator On-Off control
M
B5
B4
M
B3
B2
B1 C
0C
D
24 24 0 0
0 Y
24 0
24 V ~
B6 RH
XTU 614
Ys
M
B
G
H
Ys
M
B5 B6 B7 G
B4
M
B3
B2
M
B1 C
0C
T
T
TT
Co Cl
Op
1234567910 11 12 13 14
8
D
24 24 0 0
24 0 Y1
24 0N L N L
24 V ~
B3 B4 Rt B6 B7 RH
Rs B1
Ys
XTU 614
B8 E1 E2
Ys
Mp Mv
M
B
G
H
Y
M
B5 B6 B8 E1 E2B7 G
B4
M
B3
B2
MYs B1 C
0C
T T
D
24 24 0 0
24 0 Y1
24 0
24 V ~
B3
B2
Ys
Rs
XTU 614
B6 B8 E1 E2B7 G
Ys M
B5
B4
M
B3
B2
M
B1 C
0C
TT
D
24 24 0 0
24 0 Y1
24 0
24 V ~
B3
B2
U1
XTU 614

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COSTER
13. USE OF Y OUTPUTS– EXAMPLES
13.2 – 1 Winter heating, summer cooling modulating battery
– 1 Humidifying On-Off unit
B1 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
B7 – Battery frost protection sensor
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 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
B7 – Battery frost protection sensor
Mu – Humidifier On-Off control
Mv – Fans 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 Heating modulating battery
– 1 Humidifying On-Off unit
13.3 – 1 Heating On-Off battery
– 1 Humidifying On-Off unit
B1 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
Mu – Humidifier On-Off control
Mv – Fans On-Off control
Rt° – Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – On-Off heating control
D e t e c t o r s L a y o u t
1 2 3 – 5 6 7 8
M3.1
Y : M O D U L A T i N G
R u n T i m e : x x s
M3.4
Y : H E A T I N G
M3.5
S e a s o n S w i t c h i n g
N O
M3.2
D e t e c t o r s L a y o u t
1 2 3 – 5 6 7 8
M3.1
Y : M O D U L A T I N G
R u n T i m e : x x x s
M3.4
Y : H E A T I N G
M3.5
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
D e t e c t o r s L a y o u t
1 2 3 – 5 6 – 8
M3.1
Y : 2 S T A G E S
M3.4
Y : H E A T I N G
M3.5
S e a s o n S w i t c h i n g
N O
M3.2
MDC
0C
MM
T
T
T
1234
M
B
G
H
XTU 614
B5
B4 B6 B8 E1 E2B7 G
B3B2
Ys B1
B6
B3 Rt˚B2 RH
B1
567910 11 12 13 14
8
24 24 0 0
24 0 N L N L
24 V ~
Mu Mv
1st 2nd
Win Sum
cs
0
MC
0C
MM
T
T
T
T
Co Cl
Op
1
23
4
D
M
B
G
H
XTU 614
567910 11 12 13 14
8
24 24 0 0
B5
B4 B6 B8 E1 E2B7 G
B3B2
Ys B1
B6
B3 Rt˚B2 B7 RH
B1
24 0 N LN L N L
24 V ~
MpMu Mv
Y
Win Sum
cs
0
Co Cl
Op
M
1234
C
0C
MM
T
T
T
T
D
B6
M
B
G
H
XTU 614
567910 11 12 13 14
8
24 24 0 0
B5B4 B6 B8 E1 E2B7 G
B3
B2
Ys B1
B3 Rt˚B2 B7 RH
B1
24 0 N LN L N L
24 V ~
MpMu Mv
Y

9
E 134 - XTU 614 C1 Eng. 22.11.10 AM REV. 03
We reserve the right to make changes without notice
COSTER
14. 3 - OR 4 - BATTERY SYSTEM CONTROL (XTU644 + XTU 614) – EXAMPLES
14.1 – 1 Winter pre-heating with frost protection control modulating battery
– 1 Summer cooling/dehumidifying modulating battery
– 1 post-heating modulating battery
– 1 Humidifying On-Off unit
B1 – Discharge air. temp sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B4 – Pre heating temperature sensor
B6 – Room or extract air humidity sensor
B7 – Frost protection sensor
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)
D e t e c t o r s L a y o u t
– – – – – 6 7 8
M3.1
D e t e c t o r s L a y o u t
1 2 3 – 5 6 – –
M3.1
Y 1 : M O D U L A T I N G
R u n T i m e : x x x s
M3.4
Y 1 - W i n : P R E H E A T .
Y 1 - S u m : O F F
M2.6
Y 2 : M O D U L A T I N G
R u n T i m e : x x x s
M2.7
Y 2 - W i n : O F F
Y 2 - S u m : C O O L + D E H U
M2.8
Y 3 - W i n : H E A T I N G
Y 3 - S u m : H E A T I N G
M2.10
S e a s o n S w i t c h i n g
F R C O N T R O L s s
M3.2
Y 3 : M O D U L A T I N G
R u n t i m e : x x x s
M2.9
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
13.4 – 1 Winter heating, summer cooling modulating battery with season switching heat pump
– 1 Humidifying On-Off unit
B1 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
B7 – Battery frost protection sensor
Mu – Humidifier On-Off control
Mv – Fans On-Off control
Mp – Pump On-Off control
Rt° – Temperature set point adjuster (optional)
RH – Humidity set point adjuster (optional)
Y – modulating control winter heating & summer
cooling
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 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B6 – Room or extract air humidity sensor
Mu – Humidifier On-Off control
Mv – Fans 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
D e t e c t o r s L a y o u t
1 2 3 – 5 6 7 8
M3.1
Y : M O D U L A T I N G
R u n T i m e : x x x s
M3.4
Y - W i n : H E A T I N G
Y - S u m : C O O L I N G
M3.5
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
D e t e c t o r s L a y o u t
1 2 3 – 5 6 7 8
M3.1
Y : 2 S T A G E S
M3.4
Y - W i n : H E A T I N G
Y - S u m : C O O L I N G
M3.5
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
U s e d e t e c t o r B 4
P R E H E A T I N G
M3.3
O u t p u t 8 - 9 - 1 0 :
C O N T R O L
M2.3
Y : M O D U L A T I N G
R u n t i m e : x x x s
M3.4
Y - W i n : F R O S P R O T .
Y - S u m : O F F
M3.5
HT
TT
T
++
–
T
XTU 614
XTU 644
B6 B3
Rt RH
B2 B1
B7
B4
Y2Y1 Y3
Mv
Mu
MDC
0C
MM M
T
T
T
1234
B5
B4 B6 B8 E1 E2
B7
B3
B2
Ys B1
M
B
G
H
567910 11 12 13 14
8
24 24 0 0
N L N L
B6
B3 Rt˚B2 RH
B1
Sum
Win
cs
0
24 0
24 V ~
Sum Win Co
Ycs
Mu Mv
1st Stage
2nd Stage
Y
XTU 614
MDC
0C
MM
1234
Co Cl
Op Sum Win Co
B5B4 B6 B8 E1 E2B7 G
B3B2
Ys B1
B6
B3 RtB2 B7 RH
B1
567910 11 12 13 14
8
24 24 0 0
24 0 N LN L N L
24 V ~
MpMu Mv
Y
cs
Ycs
XTU 614
T
T
T
T
M
B
G
H
SumWin
0
M
B5
B4 G
B7 B8 E1 E2
B6
M
B3
B2
M
B1Ys B5
B4 B7 B8 E1 E2
B6B3
B2
B1
Ys
DC
0C
Co Cl
Op
T
TT
M
1
234
C
0C
M G
M
T
T
Co Cl
Op
12345678910 11 12 13 14
24 24 005678910 11 12 13 14 24 24 00
Co Cl
Op
D
M
B
G
H
B6 RH
cs
B7
B3 B4 Rt˚B2
Mu Mv
B1
24 0
24 V ~
24 0 N L N L
24 V ~
Win Sum
Mv
Y1 Y3 Y2
XTU 644 XTU 614

10
E 134 - XTU 614 C1 Eng. 22.11.10 AM REV. 03
We reserve the right to make changes without notice
COSTER
14.2 – 1 Winter pre-heating modulating battery with frost protection 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 – Discharge air temp. sensor
B2 – Outside temp. sensor (for compensation)
B3 – Room or extract air temp. sensor
B4 – Pre-heating temperature sensor
B6 – Room or extract air humidity sensor
B7 – Frost protection sensor
Mu – Humidifier On-Off control
Mv – Fans
Y – Winter pre-heating modulating control
Y1win – Winter post-heating modulating control
Y2 – Summer cooling/dehumidifying modulating control
Y3sum – Summer post-heating On-Off control
Rt° – Temperature set point adjuster (optional)
RH – Dehumidification set point adjuster (optional for humidifying only)
D e t e c t o r s L a y o u t
1 2 3 – 5 6 – –
M2.1
Y 1 : M O D U L A T I N G
R u n t i m e : x x x s
M2.5
Y 1 - W i n : H E A T I N G
Y 1 - S u m : O F F
M2.6
Y 2 : M O D U L A T I N G
R u n t i m e : x x x s
M2.7
Y 2 - W i n : O F F
Y 2 - S u m : C O O L + D E H U
M2.8
Y 3 - W i n : O F F
Y 3 - S u m : H E A T I N G
M2.10
S e a s o n S w i t c h i n g
F R C O N T R O L c s
M2.2
Y 3 : 2 S T A G E S
M2.9
U s e d e t e c t o r B 4
P R E H E A T I N G
M3.3
Y : M O D U L A T I N G
R u n t i m e : x x x s
M3.4
Y - W i n : P R E H E A T .
Y - S u m : O F F
M3.5
O u t p u t 8 - 9 - 1 0 :
C O N T R O L
M2.3
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
14.3 – 1 Battery modulating winter pre-heating with frost protection control and summer cooling/dehumidifying
– 1 Battery winter post-heating modulating
– 1 Battery summer post-heating On-Off
– 1 Humidifying On-Off unit
B1 – Discharge air temperature sensor
B2 – Outside temperature sensor (for compensation)
B3 – Room or extract air temp. sensor
B4 – Preheating temperature sensor
B6 – Room or extract air humidity sensor
B7 – Frost protection sensor
Mu – Adiabatic humidifier On-Off control
Mv – Fans
Y – Winter pre-heating control
Y1iwin – Winter post-heating control
Y2 – Summer cooling/dehumidifying control
Y3sum – Summer post-heating control
Rt° – Temperature set point adjuster (optional)
RH – Dehumidification set point adjuster (optional for humidifying only)
D e t e c t o r s L a y o u t
– – – – – – 7 8
M3.1
D e t e c t o r s L a y o u t
1 2 3 – 5 6 – –
M2.1
Y 1 : M O D U L A T I N G
R u n t i m e : x x x s
M2.5
Y 1 - W i n : P R E H E A T .
Y 1 - S u m : C O O L + D E H U
M2.6
Y 2 : M O D U L A T I N G
R u n t i m e : x x x s
M2.7
Y 2 - W i n : H E A T I N G
Y 2 - S u m : O F F
M2.8
Y 3 - W i n : O F F
Y 3 - S u m : H E A T I N G
M2.10
S e a s o n S w i t c h i n g
F R C O N T R O L s s
M2.2
Y 3 : 2 S T A G E S
M2.9
Y : M O D U L A T I N G
R u n t i m e : x x x s
M3.4
Y - W i n : F R O S T P R .
Y - S u m : O F F
M3.5
U s e d e t e c t o r B 4
P R E H E A T I N G
M2.4
O u t p u t 8 - 9 - 1 0 :
C O N T R O L
M2.3
S e a s o n S w i t c h i n g
X X X X X X X X X
M3.2
D e t e c t o r s L a y o u t
– – – 4 – – 7 8
M3.1
M
B5
B4
M
B3
B2
M
B1
3
DC
0C
T
TT
Co Cl
Op
M
1234
D E2
T
MM
T
124
Co Cl
Op Co Cl Op
C
0C
G
B7 B8 E1 E2
B6Ys B5 B4B3B2B1 B7 E1B8
G
B6Ys
567567 8910 8910 11 12 11 12
13 14 13 14
24 24 0024 24 00
H
Mu Mv
N L N L
M
B
G
B6 RH cs
B7B4
B3 Rt˚B2
B1
Win Sum
Mv
Y3.sum
24 0
24 V ~
24 0
24 V ~
Y1.win Y2 Y
0
1st 2nd
XTU 644 XTU 614
G
B7 B8 E1 E2
B6
Ys
5678910 8910 11 12 11 12
13 14 13 14
24 24 00567 24 24 00
M
B5
B4
M
B3
B2
M
B1 G
B7 B8 E1 E2
B6
Ys B5
B4B3B2B1
DC
0C
Co Cl
Op
T
TT
MC
0C
MM
TT
1234
1234
Co Cl
Op
D
Mu Mp Mv
N L N L N L
Y3.sum
24 0
24 V ~
24 0
24 V ~
Y1 Y2.win
H
M
B
G
B6 RH cs
B7
B3 B4 Rt˚B2
B1
Win Sum
Mv
0
1st 2nd
XTU 644 XTU 614