Related Manuals for Paul TAC4 DG
Summary of Contents for Paul TAC4 DG
- Page 1 Control unit TAC4 DG + GRC Installation and maintenance Status: 06/2013 Paul Wärmerückgewinnung GmbH August-Horch-Straße 7 08141 Reinsdorf Germany Tel.: +49(0)375 - 303505 - 0 Fax: +49(0)375 - 303505 - 55...
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Page 3: Table Of Contents
4.1.2 In wall installation ........................8 Wiring of GCR TAC4 ........................ 9 4.2.1 Plug SAT MODBUS satellite on CB4 TAC4 DG ..............9 4.2.2 Wiring diagram to connect the GRC TAC4 REC to the SAT MODBUS ........ 10 4.2.2.1 Cable specifications ....................... 10 4.2.2.2... - Page 4 Setup CA mode ........................25 5.2.1.2 Operating CA mode with GRC TAC4 master (‘Control’ screen) ..........27 5.2.1.3 Operating CA mode with TAC4 DG master ................27 5.2.2 LS mode: setup, operating instructions and wiring diagrams ..........28 5.2.2.1 Setup LS mode ........................28 5.2.2.2...
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Page 5: Preamble
If you have any questions that have not been answered or have not been sufficiently answered in this documentation, please contact the company Paul Wärmerückgewinnung GmbH. We will be glad to help you. -
Page 6: Functionalities Of The Regulation
The TAC4 DG controller is mounted in the units of maxi-series. This handbook describes the functionalities of the TAC4 DG when using a GRC TAC4 display. A SAT MODBUS satellite (option) is used to connect the graphic remote control (GRC). -
Page 7: Generell Maintenance Instructions
1 Main switch for power supply fans and control 2 Main switch for power supply to pre (Kwin) and/or post (Kwout) heating coils (options) 3 Centralized wiring box of the CB4 TAC4 DG circuit (factory pre-wired) 4 Supply fan(s) 5 Exhaust fan(s) -
Page 8: Schematic Of The T° Sensors Positioning In The Maxi Unit
3.1.2 Schematic of the T° sensors positioning in the maxi unit To allow easier identification of the temperature sensors 4 different wire colors are used: T1 : black wire T2 : white wire T3 : blue wire T4 & T5 : green wire (not at maxi flat-series) 3.1.3 Control panel 3 label located inside the cover... -
Page 9: Grc Wiring And Funtionalites
The GRC is designed for indoor use. For outdoor application, use a weatherproof housing. All the configuration data is enclosed in the TAC4 DG circuit. It is thus possible to remove the GRC without disrupting the installation. The GRC is delivered with attachments and fastening screws. Mounting panel thickness should not exceed 5mm. -
Page 10: On Wall Installation
4.1.1 On wall installation This kit GRC includes a box with an opening in the lid where the GRC touchscreen fits perfectly. 4 fixations Fix the GRC in the lid with the mounting brackets supplied in the GRC kit GRC. The cable entry holes in the box will have to be done by the installer. -
Page 11: Wiring Of Gcr Tac4
4.2.1 Plug SAT MODBUS satellite on CB4 TAC4 DG First, make sure the power is shut down, then plug the SAT MODBUS on the CB4 TAC4 DG circuit connector (see picture). Warning: plugging the SAT in the wrong connector can be fatal to both circuits ! -
Page 12: Wiring Diagram To Connect The Grc Tac4 Rec To The Sat Modbus
• If the unit is installed in a location with high electro-mechanical interference levels we strongly advise to connect the armored shield of the TAC4 DG – GRC cable on one side of the ground only. • If the maxi-series is installed outside, select a suitable cable for outdoor application (UV light, …). -
Page 13: Power Grc Tac4
2) Or GRC TAC4 is « master »: contact between terminals IN1 and +12Vdc of TAC4 DG circuit is open. - The TAC4 DG circuit is then in control of the system and serves as a control hub between fans and the GRC TAC4. -
Page 14: Fan Control
Contact closed = TAC4 DG circuit master Contact open = GRC TAC4 master Caution: Use gold-plated contact only. The use of this contact enables to switch automatically from GRC TAC4 master to TAC4 DG master. Using this you can for instance: •... -
Page 15: Time Slots Schedules
• MODE OFF: Is not a real working mode, it is a way to temporarily shortcut the TAC4 DG master setup. It allows, if working in TAC4 DG master, to stop the fans with the GRC TAC4. But then to restart the fans it is required to choose one of the other 3 working modes. - Page 16 Type 10: Alarm indicating failure on T° sensor T4 (only with NV option). It indicates that the T° sensor T4 located on the coil and connected to the TAC4 DG circuit is defect (open or short circuit) or not connected. This sensor is used to avoid frosting of the NV coil. In this case, as a safety measure, the 3 way valve is opened and the contact used to start the circulator is closed.
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Page 17: Alarm Table
Alarm type 14: If T° < -5°C during 5 minutes, fans are stopped. Reset using «ALARMS RESET» in the «Alarms» tab of the «Visualization» menu, or press RESET on the TAC4 DG circuit to restart the unit. See 13 & 14 in table below. -
Page 18: Wiring Diagrams
O.R.2 4.6.4 Fire alarm The TAC4 DG control can be connected to a fire detection system to: - stop/start the supply/exhaust fans according to fire regulations - set the airflows in case of fire alarms according to fire regulations - allow firemen to overrule the existing setup and start/stop the fans as needed. -
Page 19: Boost Function
100% by-pass damper. The by-pass is delivered completely wired and motorized from factory. No wiring or installation is required by the installer. The O.R.4 relay (SAT3 option) of the TAC4 DG circuit indicates the opening / closing of the bypass. -
Page 20: Opening / Closing Of Dampers (Ct Option) At Inlet
Protection antifreeze via pulse flow reduction This functionality is built in the standard TAC4 DG and must not be configured by the installer. It is automatically de-activated if an optional KWin pre-heater (see § 4.9.2) is installed in the unit. -
Page 21: Antifrosting The Heat Exchanger With 1 Pre-Heating Kwin (Option)
1°C. If necessary this value can be changed using the advanced setup feature TAC4 DG regulation antifrost functions: • A solid state relay controlled by the TAC4 DG regulation controls the coil’s capacity in function of the assigned T° and of resulting exhaust T°. -
Page 22: Kwout Post Heating Electrical Coil Control (Option)
KWout post heating electrical coil control (option) The post-heating coil is delivered factory mounted. Its purpose is to keep a constant supply air temperature, using the TAC4 DG regulation. The assigned T° is configured via «Assignment T°» of «Setup» menu (see § 5.2.1.1, 4.2.2.1 or 5.2.3.1... -
Page 23: Wiring Diagrams
The assignment T° is set via the «Assignment T°» tab of “Setup” (see § 5.2.1.1, 5.2.2.1 or 5.2.3.1 according to the selected working mode): Control features of the TAC4 DG : • Monitoring the 3-way valve to keep assignment T° constant using supplied sensor T° value. -
Page 24: Regulation For External Coil(S) (Sat Tac4 Ba/Kw Option)
• Switching of a relay to control the circulator (SAT3 O.R.3 relay): • Possibility to stop the post-heating with an external contact Contact closed = post-heating OFF Contact open = post-heating ON 4.13 Regulation for external coil(s) (SAT TAC4 BA/KW option) Via option SAT TAC4 BA/KW it is possible to control one or two external (from the unit) heat exchanger(s): •... -
Page 25: Fan Failure Alarm
Fan failure alarm It is possible with a SAT3 mounted on the TAC4 DG (option) to provide the fan status (control if actual delivered airflow > 20% of airflow assignment) or if they are stopped, using the R3 relay of one of the SAT3 (O.R.2). -
Page 26: Configuration And Use
Via the ‘advanced setup’ it is possible to connect any of these 2 OUT signals to the airflow or pressure value of any fans. Wiring diagram of outputs signals: Default: OUT1 = actual airflow of fan 1 (supply) Default: OUT2 = actual pressure of fan 1 (supply 5 Configuration and use Principles of GRC TAC4 The GRC configuration is made with the touch screen. -
Page 27: Setup And Fan Control
Enter of ratio (%) of between exhaust (fans F3, F4) and supply (fans F1, F2) airflows Airflow 1 Enter supply airflow 1 (enabled if contact between terminals K1 and + 12V closed on TAC4 DG circuit, or if ‘fan1logo’ is selected in the GRC TAC4 control screen). The exhaust airflow is... - Page 28 Airflow 2 Enter supply airflow 2 (enabled if contact between terminals K2 and + 12V closed on TAC4 DG circuit, or if ‘fan2logo’ is selected in the GRC TAC4 control screen). The exhaust airflow is calculated automatically based on %Ex/Su...
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Page 29: Operating Ca Mode With Grc Tac4 Master ('Control' Screen)
One of the 3 assignment constant airflows (airflow1, airflow 2 and airflow 3) is selected using the K1/K2/K3 terminals on TAC4 DG. The selection made is highlighted by the corresponding LED of the ‘CONTROL’ screen on the RC TAC4). The exhaust airflow is equal to (%EXT/PUL) of the supply airflow. -
Page 30: Ls Mode: Setup, Operating Instructions And Wiring Diagrams
Select airflow ratio between exhaust airflow (fans F3,F4) and supply airflow (fans F1,F2) /Sup Enter multiplier (%) of the LS link when contact between terminals + 12V and K3 on TAC4 DG % on K3 circuit is closed, or if in position "smallest fan" on the control screen. - Page 31 «Alarm Pa» tab Pressure alarm ? Pressure alarm is optional. To activate pressure alarm press the dark green diode (disabled),when diode becomes bright green it is enabled. dP supply Setup Pa Alarm on supply side. Enter pressure increment (corresponding to the airflow required to reach the reference pressure on supply side) dP exhaust Setup Pa Alarm on exhaust side.
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Page 32: Operating Ls Mode With Grc Tac4 Master ('Control' Screen)
Enter in control screen by pressing the "Control" knob of the side menu. The supply airflow assignment is function of a 0-10V signal connected to input K2 of the TAC4 DG circuit (linear link). The exhaust airflow is linked to the supply airflow by a user defined value (%EXT/PUL). If option «0-10V on K3 »... -
Page 33: Operating Ls Mode With Tac4 Dg Master
The assignment value for the supply constant airflow is a function of a 0-10V signal connected to terminals K2 of the TAC4 DG circuit. The link between voltage and airflow is linear. The exhaust constant airflow is equal to %EXT/PUL of the supply airflow (except if 2 separate 0-10V signals are used to determine exhaust and supply constant airflows, see advanced setup). -
Page 34: Cps Mode: Setup, Operating Instructions And Wiring Diagrams
% on K3 Enter multiplier (%) of the CPs assignment when contact between terminals + 12V and K3 on TAC4 DG circuit is closed, or if in position "smallest fan" on the control screen. Not applicable if CPs on supply and exhaust. - Page 35 CPs on EXHAUST air: The airflow delivered by the exhaust fans is automatically modulated to obtain a constant pressure as measured by the pressure sensor in the duct. The supply airflow is equals to 1/(%EXT/PUL) of the exhaust airflow. CPs on SUPLY + EXHAUST air: the supply fan’s airflow is automatically modulated to obtain a constant pressure as it is measured by a pressure sensor connected to K2.
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Page 36: Operating Cps Mode With Grc Tac4 Master (Control Screen)
5.2.3.2 Operating CPs mode with GRC TAC4 master (control screen) Enter in control screen by pressing the "Control" knob of the side menu. • The "Address" box shows the Modbus address of the TAC4 unit currently monitored. It is not editable via this screen. -
Page 37: Operating Cps Mode With Tac4 Dg Master
• The pressure sensor is connected to entry K2 of the TAC4 DG circuit. • K3 on the TAC4 DG circuit can be used to activate the multiplier ‘% on K3’ on the airflow assignment In this configuration, the ‘control’ screen of the GRC is always accessible, but does not allow airflow assignment modifications. -
Page 38: Time Slots Schedules
Time slots schedules A GRC TAC4 allows changing working modes between time slots. (For instance LS during the day and CA at night). The time slot programming is only enabled when the regulation is set to "automatic". 5.3.1 «Setup» tab The timeslot programming is done in CA mode by entering specific airflows for each time slot (TS) and for LS and CPS modes by entering a multiplier which will then be applied to a basic setup. -
Page 39: Week Planner" Tab
5.3.2 «Week planner» tab The "timeslots" feature allows configuration of complex timeslots. Six timeslots per day, thus 42 different configurations. For each time slot the working mode and the assignment must be configured. Configuring a time slot: • Press on one of the boxes on the screen. •... -
Page 40: Network Visualization
5.4.2 Network Visualization Network View tab allows changing the communication address on the network, as well as to see a list of selected units on the network and programmed by the installer. This list of maximum five units is a reminder for the user to easily identify the units. -
Page 41: Visualization
5.5.1.1 General information 1. MODBUS address of CB4 TAC4 DG circuit. This address field is editable in each “visualization” screens. To manage a network of several installations, see "Network" screens (see § 5.4). -
Page 42: Air "Flows" Tab
5.5.1.2 Air «Flows» tab Collared arrows provide a schematic and intuitive representation of the air flows in the unit. Exhaust and supply airflows with heat exchange between flows. Exhaust and supply airflows without heat exchange between flows (bypass open, free cooling) Exhaust airflow only (supply fans stopped) Supply airflow only (exhaust fan... - Page 43 The upper right corner of the synoptic provides supply air information. This can be displayed in 4 different ways: 1. No post-heating 2. NV post-heating inside unit (hot water coil) 1. Exhaust flow air T°(T5, green wire sensor installed by customer in the ducting).
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Page 44: Anti-Frost Information
5.5.1.4 Anti-frost information The lower left corner of the synoptic provides information on the anti-frost function (see § 4.9). Three different situations may occur: 1. Antifreeze function disabled (green led ‘off’) 2. The green led is ‘on’ : indicating that the built antifreeze function is enabled. The system automatically reduces supply airflows rate to avoid heat exchanger frosting. -
Page 45: Alarms" Tab
Dampers closed Dampers ‘opening’ (30 seconds waiting time) Dampers open 5.5.2 «Alarms» tab The "Alarms" tab gathers the status of each different alarm available. The corresponding led turns red once the alarm is activated. By pressing the led the GRC displays the details of the alarm. A message describes the alarm and suggests appropriate action to solve the problem. -
Page 46: Flows" Tab
5.5.4 «Flows» tab The "Flows" tab gives detailed information about actual airflows and pressures per fan (one or two fan(s) by flows, depending on the type of unit installed) and the actual temperatures measured. 5.5.5 «I/O» tab The "Flows" tab gives detailed information about actual airflows and pressures per fan (one or two fan(s) by flows, depending on the type of unit installed) and the actual temperatures measured. -
Page 47: Config" Tab
Advanced setup Using this feature requires a good knowledge of the TAC4 DG control system. The functions of the ADVANCED SETUP are described in annexes 1 and 2 of the installation and maintenance instructions.