ZIEHL-ABEGG PCA-2 1000D2 User manual

PCA-2 1000D2
Pressure sensor and pressure controller
for measuring and controlling differential
pressure and voume ow
Operating Instructions
Keep for reference!
Software version: from Version 1.00
L-BAL-E295-GB 1906 Index 001 Part.-No.
english

Content
1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Structure of the operating instructions . . . . . . . . . . . . . . 5
1.2 Exclusion of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Disposal / recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 EMC-compatible installation of control lines . . . . . . . . . 10
5.2 Connection Voltage supply . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Output voltage 0...10 V . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.4 Digital input (D1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.5 Relay outputs “K1” ................................. 11
5.6 RS-485 interface for MODBUS . . . . . . . . . . . . . . . . . . . . . 11
5.6.1 Automatic addressing . . . . . . . . . . . . . . . . . . . . . . 13
5.7 Input for outdoor temperature sensor . . . . . . . . . . . . . . . 14
6 Device construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Connecting elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Multipurpose LC display and keyboard . . . . . . . . . . . . . 15
7 Modes/Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 Select operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.3 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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8 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.1 Pressure sensor 4.00 and pressure control 4.01 + 4.02
18
8.1.1 Base setup 4.00 ... 4.02 . . . . . . . . . . . . . . . . . . . 18
8.1.2 Settings for operation 4.01 + 4.02 . . . . . . . . . 20
8.2 Volume sensor 5.00 and volume control 5.01 + 5.02 . 22
8.2.1 Base setup 5.00 ... 5.02 . . . . . . . . . . . . . . . . . . . 22
8.2.2 Nozzle coefficient (K-Factor) . . . . . . . . . . . . . . . . 23
8.2.3 Setting for operation 5.01 and 5.02 . . . . . . . . 24
8.3 Menu group "INFO" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.4 Menu group "IO SETUP" . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.4.1 Allocation: virtual IOs/real IOs . . . . . . . . . . . . . . 27
8.4.2 Analog output “AO” ........................ 28
8.4.3 Digital output “DO” ......................... 29
8.4.4 Digital inputs “DI” .......................... 31
8.4.4.1 Menu overview . . . . . . . . . . . . . . . . . . . 31
8.4.4.2 Enable ON/OFF, function
| 1D | . . . . . 32
8.4.4.3 External message, function
| 2D | . . . 32
8.4.4.4 Setpoint 1/2, function
| 5D | . . . . . . . . . 33
8.5 Menu group "LIMITS" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.5.1 Limit message modulation . . . . . . . . . . . . . . . . . . 34
8.5.2 Limit message actual value . . . . . . . . . . . . . . . . . 35
8.5.3 Limit message outdoor temperature . . . . . . . . . 37
8.6 Time switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.7 MODBUS SLAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.7.1 Address and interface parameters . . . . . . . . . . 40
8.7.2 MODBUS Register . . . . . . . . . . . . . . . . . . . . . . . . 41
8.7.2.1 Holding register . . . . . . . . . . . . . . . . . . . 41
8.7.2.2 Input register . . . . . . . . . . . . . . . . . . . . . 44
9 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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9.2 Connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.3 Dimensions [mm] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.4 Manufacturer reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
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1 General notes
Compliance with the following instructions is mandatory to ensure
the functionality and safety of the product. If the following instruc-
tions given especially but not limited for general safety, transport,
storage, mounting, operating conditions, start-up, maintenance,
repair, cleaning and disposal / recycling are not observed, the
product may not operate safely and may cause a hazard to the life
and limb of users and third parties.
Deviations from the following requirements may therefore lead
both to the loss of the statutory material defect liability rights and
to the liability of the buyer for the product that has become unsafe
due to the deviation from the specifications.
1.1 Structure of the operating instructions
Before installation and start-up, read this manual carefully to
ensure correct use!
We emphasize that these operating instructions apply to specific
units only, and are in no way valid for the complete system!
Use these operating instructions to work safely with and on the
device. They contain safety instructions that must be complied
with as well as information that is required for failure-free operation
of the device.
Keep these operating instructions together with the device. It must
be ensured that all persons that are to work on the device can
refer to the operating instructions at any time.
1.2 Exclusion of liability
To allow for future developments, construction methods and tech-
nical data given are subject to alteration. We do not accept any
liability for possible errors or omissions in the information con-
tained in data, illustrations or drawings provided.
We accept no liability for damage caused by misuse, incorrect
use, improper use or as a consequence of unauthorized repairs or
modifications.
Operating Instructions PCA-2 1000D2 General notes
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2 Safety instructions
Attention!
•Mounting, electrical connection, and start-up operation may only
be carried out by an electrical specialist in accordance with
electrotechnical regulations (e.g. DIN EN 50110 or
DIN EN 60204)!
•Persons entrusted with the planning, installation, commissioning
and maintenance and servicing in connection with the device
must have the corresponding qualifications and skills for these
jobs. In addition, they must be knowledgeable about the safety
regulations, EU directives, rules for the prevention of accidents
and the corresponding national as well as regional and in-house
regulations.
•It is strictly forbidden for work to be carried out on any
components while they are connected to live voltage.
•The safe isolation from the supply must be checked using a two-
pole voltage detector.
•The owner is obliged to ensure that the device is operated in
perfect working order only.
•Electrical equipment must be checked regularly: Loose con-
nections are to be re-tightened and damaged lines or cables
must be replaced immediately.
•Never clean electrical equipment with water or similar liquids.
•A separate fault and performance monitoring-system with an
alarm signal function is necessary in order to prevent personal
injuries and material damages during malfunctions and in case
the device fails. Substitute operation must be taken into
consideration!
Intended use
These devices are intended exclusively as sensor and control
module for pressure and volume flow (non-aggressive gases
only). Their operation is only permitted under observance of the
specifications in these operating instructions.
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Any other use above and beyond this will be considered as im-
proper use. The manufacturer will not be liable for any damage
resulting from this. The company using it bears the sole risk.
3 Product overview
3.1 Function
Sensor-control module with differential-pressure sensors in proven
ceramic-cantilever technology for climate and clean-room applica-
tion.
The pressure range goes from 0...1000 Pa (0...4.0 in.wg), four
measuring ranges are programmable.
Function when the pressure at the “Plus”- connection exceeds the
pressure at the “Minus”- connection.
Depending on the programmed Mode the device can be used
as sensor or as a control module for pressure or volume flow.
•For operation as pressure sensor the device supplies an output
signal (0...10 V) proportional to the measuring range.
•For operation as volume flow sensor the device supplies an
output signal (0...10 V) proportional to the air volume measuring
range (see INFO / Range qV). Function in combination with
centrifugal fans and measuring device in the inlet ring. The
controller calculates the volume flow of the fan from the “K-
Factor” and pressure differential between the suction side and
the inlet duct.
•For operation as control module for pressure or volume flow the
purpose of the device is to reach and maintain the target value
set. To accomplish this, the measured actual value (sensor
value) is compared with the adjusted target value, and the con-
trolled value is deduced from this. Controlled output (0...10 V)
e.g. for activating a speed controller for fans or an EC-fan
directly.
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The extended PCA -21000D2 type version provides the following
additional functions:
•Integrated real-time clock with timer function.
•Operating modes with setpoint adjustment based on outdoor
temperature and input for outdoor temperature sensor.
•RS-485 interface for MODBUS RTU.
•Signal relay that can be assigned different functions.
3.2 Storage
•The device must be stored in its original packaging in a dry and
weather-proof room.
•Avoid exposure to extreme heat and cold.
•Avoid over-long storage periods (we recommend a maximum of
one year).
3.3 Disposal / recycling
Disposal must be carried out professionally and in an environ-
mentally friendly way in accordance with the respective national
legal stipulations.
"Separate the materials by type and in an environmentally
friendly way.
"If necessary, commission a specialist company with the waste
disposal.
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4 Mounting
•Before installation remove the device from the packing and
check for any possible shipping damage!
•Assemble the device on a clean and stable base. Do not distort
during assembly! Use the appropriate mounting devices for
proper installation of the unit!
•Use the templates printed on the device packing to mark the
fastening bore holes.
•The pressure measuring depends on position, therefore the
mounting must be made vertical and as possible on a vibration-
free place (cable inlet and pressure connections down).
•The pressure line´s connection should be with plastic-hose (in
building), inside diameter 4 / 5 mm. For a firm hold of the hose,
its inside diameter must be 1 mm smaller than the outside
diameter of the hose nozzle (step spigot 5 / 6 mm).
•Remove the connection cover for mounting, electrical connec-
tion and setting of the measuring range. Close the lid again
carefully before start-up (tightening torque of the lid screws
1.1 Nm).
•Two lines may only be fed through one cable screw-type gland
with the sealing insert for two lines.
Vertical mounting
Gehäuse
housing
111 mm
Gehäuse / housing
106 mm
11 mm
83 mm
91 mm
Schraube
max 4,5 mm
screw max
4,5 mm
Bohrschablone
drilling template
Drilling template on packing
Operating Instructions PCA-2 1000D2 Mounting
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5 Electrical installation
5.1 EMC-compatible installation of control lines
Pay attention to maintain sufficient distance from powerlines and
motor wires to prevent interferences.
When using a shielded cable the shield must be connected (as
short and with as low an induction as possible!) to the PE conduc-
tor on one side at the signal input (of the evaluation unit).
5.2 Connection Voltage supply
Connection Voltage supply at terminals: “+U
S
” and “GND”. Here, it
must be strictly observedt hat the mains voltage lies within the
llowable olerance pecifications (see Technical data and nameplate
affixed to the side).
Danger due to electric current
Only PELV current sources which ensure safe electrical isolation
of the operating voltage in accordance with IEC/DIN EN 60204-1
must be used.
There is no potential isolation between supply voltage and output
signal.
5.3 Output voltage 0...10 V
Connection to terminals “A” and “GND” (I
max
see Technical data).
Parallel control of several speed controllers / EC-fans
The maximum possible number of speed controllers / EC fans with
0...10 V input that can be controlled parallel depends on their input
resistance and on the maximum admissible load of the 0...10 V
output.
Attention!
•It is not permissible to connect outputs of several devices to
each other!
•In case of failure of the control module or interruption of the
0...10 V specification signal, all parallel connected EC fans/-
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speed controllers are no longer controlled. This means that all
fans stop!
5.4 Digital input (D1)
Different functions can be assigned to the digital input D1(see IO
SETUP).
A voltage at terminals “1” and “2” (10...24 V DC) activates the
programmed function (note polarity - see connection diagram).
5.5 Relay outputs “K1”
The relay output “K1”can have different functions assigned to it,
see IO SETUP. Max. contact rating see technical data and con-
nection diagram.
Function fault indication (factory setting) for “K1”:
•For operation the relay is energized, connections “13” and “14”
are bridged. For fault the relay is de-energized.
•When switching off via enable (see IO SETUP/Digital inputs
"DI"), the relay remains energized.
5.6 RS-485 interface for MODBUS
The device comes equipped with a RS-485 interface for network-
ing via MODBUS. Conntection at: “A (D+)”, “B (D-)” and “GND”.
11.03.2014
v_am_modbus_connect.vsd
ID1 GND A
(D+)
B
(D-) ID2GND A (D+)
B
(D-)
B
(D-) ID1 GND A (D+)
B
(D-) ID2GND A (D+)
MODBUS
(RS-485)
MODBUS
(RS-485)
Addressing Addressing
MODBUS
(RS-485)
MODBUS
(RS-485)
Addressing Addressing
The connections for MODBUS “A (D+)”, “B (D-)” are available double on the module and are
connected with each other internally.
Information
•You must ensure correct connection; i.e. “A (D+)” must also be
connected on the following devices to “A (D+)”. The same
applies to “B (D-)”.
•In addition, a "GND" connection must be established, as
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dissimilar potential (over 10 V!) will lead to the destruction of the
RS-485 interface (e.g. lightning).
•Except the data link “A (D+)”, “B (D-)” and “GND” (for automatic
addressing additional “ID1” - “ID2” see following chapter) no
further cable cores of the data line may be used.
•Pay attention to sufficient distance from powerlines and motor
wires (min. 20 cm).
•A maximum of 64 participants can be directly connected to one
another, and another 64 participants via a repeater.
Example for MODBUS connection
MODBUS
26.02.2007
v_modbus_verbindung.vsd
The data line must be conducted from
one device to the next. No other type of
wiring is allowed!
Always use only two wires of one lead
(twisted pair) for the connection.
Recommended wire types
1. CAT5 / CAT7 cables
2. J-Y (St) 2x2x0.6 (telephone cable)
3. AWG22 (2x2 twisted pair)
Max allowed wire length 1000 m (CAT5/7 500 m).
Shielding
The use of shielded cables is normally not needed but offers high
protection against electromagnetic interferences, especially high
frequencies. However, the effectiveness of the shield depends on
careful installation of the line.
If shielded cables are used, the shield should be placed at “PE” on
at least one side (preferably on the master connection). The occur-
rence of compensating currents may have to be considered if the
shield is contacted on both sides.
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Shield connection correct Shield connection incorrect
When using telephone cable with four cable cores, we recom-
mend the following allocation:
•A (D+) red
•B (D-) black
•ID1 - ID2 yellow (for automatic addressing)
•GND white
Default interface parameter
•Baudrate 19200
•Bits 8
•Parity Even
•Stop bits 1
•Handshake none
Information
Addressing is performed depending on version by display, an
external terminal or a PC with the appropriate software (automatic
addressing following chapter).
5.6.1 Automatic addressing
Automatic addressing can be started when the connections “ID1”
and “ID2” for “Addressing” are connected with each other addition-
ally next to the bus connection. I. e. it is no longer necessary to
address every user manually in the network.
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Information
•Except the data link “A (D+)”, “B (D-)” the “ID1 - ID2” and the
“GND” connection may no further cable cores of the data line be
used.
•The connections for the automatic addressing “ID1” and “ID2”
are not directly connected with each other internally. These may
not be bridged; any order of connection is possible.
•If a repeater is necessary and automatic addressing is to be
carried out, only certain repeaters that relay the addressing
signal can be used.
On the first user that is connected directly to a terminal, MODBUS
Master or PC, “GND” and “ID1” or “ID2” must be bridged. This is
recognised as a result and occupied by address 1.
For the following users the connection “ID1” or “ID2” of a user
respectively is connected with connection “ID1” or “ID2” of the next
user.
The automatic addressing of other users is initiated by the pre-
vious user via this connection.
5.7 Input for outdoor temperature sensor
For 4.02 and 5.02 operating modes with setpoint adjustment
depending on outdoor temperature, the outdoor temperature sen-
sor is connected at the “TF” terminals. You can connect passive
temperature sensors TF... (KTY81-210) or PT1000, and the polar-
ity is not relevant.
For a high interference immunity a capacitor must be connected
directly to the sensor (1 nF parallel). With temperature sensors
type TF.. (KTY81-210) a capacitor is integrated.
Danger due to electric current
Never apply line voltage to analog inputs!
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6 Device construction
6.1 Connecting elements
1 Signal relay (terminals: 13, 14)
2 Supply voltage (terminals: U
S
, GND)
3 Output signal 0...10 V (terminals: A, GND)
4 Cable gland M16 + seal insert with two holes (5 mm)
5 "Minus"- connection in area with lower pressure
6 "Plus"- connection in area with higher pressure
7 Digital input D1 (terminals: 1, 2)
8 Input outdoor temperature sensor (terminals: TF, TF)
9 MODBUS interface (terminals: GND, A, B, ID1, ID2 and jumper J1)
6.2 Multipurpose LC display and keyboard
100 Pa
Δp
Line 1: 16 figures for actual and desired values
Line 2: 16 figures for menu text
PProgram key and open menu
▼Menu selection, reduce value
▲Menu selection, increase value
▼ + ▲ESC-key combination, Escape leave menu
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Messages on the display
OFF No enable
!Exceeding measuring range
Moon symbol Adjustment for Setpoint 2 active
Hourerglass symbol Timer function active
External error External fault alarm
Limit Uout Limit: Modulation
Limit Pressure Limit: Pressure
Limit AirVolume Limit: volume flow
Limit Temp. Limit: Temperature
Check Temp Sens Failure: Check temperature sensor
Check Press Sens Failure: Check pressure sensor
7 Modes/Start-up
7.1 Select operation mode
Information
Simple installation is possible through the selection of the
preprogrammed mode of operation.
This determines the basic function of the device, factory set 4.01 .
Mode Function
4.00 Pressure sensor: output 0...10 V proportional to measuring range
4.01 Pressure control (PID): output 0...10 V depending on adjusted set-
point and measured actual value
4.02
Pressure control (PID) with outdoor temperature compensation: out-
put 0...10 V depending on adjusted setpoint, outdoor temperature
and measured actual value.
5.00 Volume flow sensor: Output 0...10 V propotional to measuring range
(depending on setting for K-Factor)
5.01 Volume flow control (PID): Output 0...10 V depending on adjusted
setpoint and measured actual value
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Mode Function
5.02
Volume flow control (PID) with outdoor temperature compensation:
output 0...10 V depending on adjusted setpoint, outdoor temperature
and measured actual value.
7.2 Start-up
Procedure
1. You must mount and connect the device in accordance with
the operating instructions.
2. Double check that all connections are correct.
3. The supply voltage must match the information on the rating
plate.
4. Set the mode, unit and measuring range and adjust the sensor
in the BASE SETUP.
5. Set the parameters for control operation for the modes 4.01 ,
4.02 , 5.01 , 5.02 unter "SETTING".
7.3 Menu structure
100 Pa
Δp
Display after turning on the voltage supply.
Switch over between actual value display and
“INFO” with the key shortcut for Escape (Esc
▼ + ▲).
INFO
Selection of the menu group (e.g. BASE SETUP) to the right
through the ▼-key, to the left through the ▲-key.
Youcangotothemenuitemsinthemenugroups (e.g. mode) by using
the P key. Use the arrow keys to move up and down within the
menu group.
To make adjustments, press the P key after selecting the menu
item. If the previously set value starts to flash, it can be adjusted
with the ▼ + ▲ keys and then saved with the P key. To exit the
menu without making any changes, use the “Esc” short-key, i.e.,
the originally set values remain.
Operating Instructions PCA-2 1000D2 Modes/Start-up
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Example for Mode 4.01 (Factory setting)
INFO
▼
▲SETTING
▼
▲BASE SETUP
P↓ ↑ Esc P↓ ↑ Esc P↓ ↑ Esc
100 Pa
Δp
100 Pa
Setpoint 1
4.01
Mode
▲ ▼ ▲ ▼ ▲ ▼
100 Pa
Setpoint 1
100 Pa
Setpoint 2
1: metric
Units
▲ ▼ ▲ ▼ ▲ ▼
Reprogramming Mode 4.01 to 5.00 in “BASE SETUP”
1 2 3 4 5 6 7
4.01
Mode P
«4.01»
Mode ▲
«5.00»
Mode P5.00
Mode
8 Programming
8.1 Pressure sensor 4.00 and pressure control 4.01 +
4.02
8.1.1 Base setup 4.00 ... 4.02
BASE SETUP
4.01
Mode
4.00 : Pressure sensor
4.01 : Pressure control (factory setting)
4.02 : Pressure control with outdoor temperature compensa-
tion
metric
Units
Display in SI units "metric" (factory setting) or Imperial units
(US) "inch".
Conversion factors:
Pressure: 1.0 in.wg 254 Pa
Temperature ( 4.02 ) t / °F 1.8 x t °C + 32
Settings for temperature differences (with SI units in K) are
also made for Imperial units (US) in °F ( Δ 1.8 °F Δ 1 K ).
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KTY81-210
Temp. Sensor
Temperature sensor for recording the outdoor temperature in
4.02 operating mode. Sensor type: KTY 81-210 (factory fit-
ted) or PT 1000.
0...1000 Pa
Measuring
range
1: 0...1000 Pa (0...4.0 in.wg)
2: 0...500 Pa (0...2.0 in.wg)
3: 0...300 Pa (0...1.2 in.wg)
4: 0...200 Pa (0...0.8 in.wg)
Adjustable measuring range
OFF
Autozero
If the actual value is not “0 Pa Δp” in pressureless state a
zero-point adjustment is possible with fuction “Autozero”.
This may be necessary, for example, in case of heavy ther-
mal fluctuations in the sensor environment or non-vertical
mounting.
Proceed as follows:
1. Pull off the pressurised hoses.
2. Switch function “Autozero” to “ON”.
3. The display switches to the actual value display and the
value “0” is displayed after zero point calibration has
taken place.
4. The necessary difference up to “0” is displayed in the
BASE SETUP under “Offset”.
0 Pa
(0.000 in.wg)
Offset
Alternatively to the automatic zero point calibration, the offset
value can also be set manually.
Setting range: +/ - 1000 Pa (+/- 4.000 in.wg)
0.0 K
(0.0 °F)
Offset
Offset temperature sensor for mode 4.02 .
Setting range: -20.0...20.0 °C (-36.0...36.0 °F)
Factory setting: 0.0 K (0.0 °F)
OFF
Factory Setting
Attention!
ON > restore factory setting delivery status
(xxx) Values for Imperial units (US)
Operating Instructions PCA-2 1000D2 Programming
L-BAL-E295-GB 1906 Index 001 Part.-No.
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8.1.2 Settings for operation 4.01 + 4.02
SETTING
500 Pa
(22.0 in.wg)
Setpoint 1
Setpoint1
Setting range: in measuring range of sensor
Factory setting: 50 % of selected measuring range
500 Pa
(2.0 in.wg)
Setpoint 1
Set Internal2
Setting range: in measuring range of sensor
Factory setting: 50 % of selected measuring range
500 Pa
(2.0 in.wg)
Pband
Pband
Narrow control range Short control times
Wide control range Longer control times and more stable
control
Setting range: in measuring range of sensor
Factory setting: 50 % of selected measuring range
0.0 V
Min. Uout
Minimal output voltage
Setting range: 0...10 V (priority over "Max. Uout")
Factory setting: 0 V
10.0 V
Max. Uout
Maximal output voltage
Setting range: 10...0 V
Factory setting: 10 V
Additional menu item for mode 4.02 with outside-temperature
dependent target-setpoint
Operating Instructions PCA-2 1000D2 Programming
L-BAL-E295-GB 1906 Index 001 Part.-No.
20/48