Related Manuals for SystemAir SysAer SR55
Summary of Contents for SystemAir SysAer SR55
- Page 1 Regulation Manual SysAer SR55 / SR65 / SR80 / SR95 / SR105 / SR120 / SR140 SR160 / SR190 / SR210 Roof-mounted air conditioning unit 49.6 â 210.6kW 49.2 â 216.4kW 9 720 â 35 000 m...
- Page 3 CONTROL MANUAL English NOTICE DE REGULATION Français REGELUNGSHANDBUCH Deutsch MANUALE DI REGOLAZIONE Italiano INSTRUCCIONES DE REGULACIÓN Español...
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Page 4: Table Of Contents
2 SysAer CONTENTS 1. INTRODUCTION ....................................3 2. INPUTS/OUTPUTS DESCRIPTION ............................... 4 2.1. SYSAER SR55 - SR65 - SR80 - SR95 - SR105 - SR120 - SR140 ............................4 2.1.1. DIGITAL INPUTS ..................................................4 2.1.2. ANALOGUE INPUTS ..................................................4 2.1.3. DIGITAL OUTPUTS ..................................................4 2.1.4. -
Page 5: Introduction
SysAer POWER SUPPLY MUST BE SWITCHED OFF BEFORE STARTING TO WORK IN THE ELECTRIC CONTROL BOX 1. INTRODUCTION The IATC (Intelligent Air Technology Control) can manage rooftop air-conditioning unit with: Two circuits comprising one or two compressors ² Main blower ²... -
Page 6: Inputs/Outputs Description
4 SysAer 2. INPUTS/OUTPUTS DESCRIPTION 2.1. SYSAER SR55 - SR65 - SR80 - SR95 - SR105 - SR120 - SR140 2.1.1. DIGITAL INPUTS N° Description Thermal circuit breaker of the return fan Filter clogging contact Remote Summer/Winter (*) Main blower thermal cut-out... -
Page 7: Analogue Outputs
SysAer 2.1.4. ANALOGUE OUTPUTS N° Description Economizer damper Heating valve FRECO control Not used 2.2. SYSAER SR160 - SR190 - SR210 2.2.1. DIGITAL INPUTS N° Description Return blower thermal cut-out Clogged filter alarm Remote Summer/Winter (*) Main blower thermal cut-out Remote start/stop (*) Circuit 1 electronic pressure reducing valve Smoke Detector... -
Page 8: Digital Outputs
6 SysAer 2.2.3. DIGITAL OUTPUTS N° Description Compressor 1 circuit 1 contactor Condenser fan circuit 1 Compressor 2 circuit 1 contactor Compressor 1 circuit 2 contactor Condenser fan circuit 2 Compressor 2 circuit 2 contactor Main blower + Exhaust blower General alarm Electrical Heater 1 NO10... -
Page 9: Room Air Temperature Control
SysAer 3. ROOM AIR TEMPERATURE CONTROL Room temperature is regulated with following devices: Compressors, ² Additional heating ² hot water coil electric coil gas burne Economizer: 2 or 3 dampers ² Energy recovery system ² 2 set points can be managed, one for summer mode and one for winter mode. 3.1. -
Page 10: Keying On/Off
8 SysAer 3.2.1. KEYING ON/OFF: Select UNIT ON/OFF from the main menu and press ENTER: pressing the ENTER key on the display, you switch the unit ON and OFF. If the unit is switched OFF via the display, none of the other ON/OFF procedures can be used to switch it back ON. -
Page 11: Compressor Control
SysAer 3.3. COMPRESSOR CONTROL The number of compressors and circuits depends on unit configuration. Compressors ON/ OFF is controlled by the room air temperature (RAT). The compressors will not work as long as they are locked in the Service menu (P1 and P2). Operation with 2 Compressors (1/2 circuit) with proportional (P) regulation Dead zone / 2 Room Temp. -
Page 12: Compressor Cycling
10 SysAer 3.3.2. COMPRESSOR CYCLING The compressor cycling is driven by different delays: Compressor start-up delay after main blower has been started: the compressor will switch ON only ² when the blower is ON for about 10 seconds. Minimum compressor OFF-time: it makes sure that the compressor stays OFF for a while before it is ²... -
Page 13: Summer Freecooling
SysAer 3.6.1. SUMMER FREECOOLING The summer freecooling is allowed only Economizer if: Outdoor Temp < Room temperature – compressor Freecooling/heating differential, to ensure operation Room Temp. that outdoor air is cold enough to cool room 100% air. FreeC_Diff. The opening of the external damper is FreeC_Offset controlled by the room air temperature as Summer... -
Page 14: Natural Cooling Compressor Operation
12 SysAer 3.6.4. NATURAL COOLING COMPRESSOR OPERATION In some cases, the natural cooling conditions are filled but the thermal load of the building does not cool down the building enough. In these conditions, the thermodynamic circuits are used as assistance for natural cooling. -
Page 15: Enthalpy-Based Freecooling And Freeheating Control
SysAer 3.6.5. ENTHALPY-BASED FREECOOLING AND FREEHEATING CONTROL The enthalpy-based freecooling and freeheating control feature manages external damper opening based on internal and external enthalpy conditions. With room temperature and air humidity, the controller calculates the room enthalpy (see the Inputs/Outputs menu), with external (outdoor) temperature and humidity, the controller calculates the outdoor enthalpy;... -
Page 16: Three Dampers Economizer Option
14 SysAer 3.7. THREE DAMPERS ECONOMIZER OPTION The return blower is a part of the 3-Damper economizer option. This fan is controlled in the same way as the main blast fan. If the return blower cuts out, the unit is immediately stopped. 3.8. -
Page 17: Thermodynamic Recovery Option - Treco
SysAer 3.10. THERMODYNAMIC RECOVERY OPTION - TRECO The active recovery is managed by a third party controller but the operating order and operating mode are managed by the main controller. 3 items of information are exchanged by dry contacts between the main controller (CAREL) and the TRECO controller (Siemens) TRECO activation order SYSAER... -
Page 18: Secondary Controller
16 SysAer 3.10.2. SECONDARY CONTROLLER The TRECO is authorized to start up if the mix air temperature (MAT) is: greater than 5°C in winter ² less than 40°C in winter ² If these conditions are not activated TRECO does not start up. ²... -
Page 19: Auxiliary Heating
SysAer 3.11. AUXILIARY HEATING When an auxiliary heating device is present (electrical heaters, hot water coil or gas burner), the management in heating mode related to the compressors can be configured: Via the SERVICE menu, an outdoor air temperature can be set to configure the auxiliary heating element as an extra heater (standard) or to replace the thermodynamic heating. -
Page 20: Auxiliary Electrical Heating Elements
18 SysAer 3.11.1. AUXILIARY ELECTRICAL HEATING ELEMENTS This function is only available with the Electrical Heaters (2 stages) option. Auxiliary electrical heating elements are controlled by room air temperature as illustrated in the figure below provided the following conditions are met: The unit is in winter mode ²... -
Page 21: Modulating Gas Burner
SysAer 3.11.3. MODULATING GAS BURNER In winter mode, a 0-10V output controls the gas burner capacity according to the figure below: compressor operation Room Temp. 100% Gas_Diff Comp_Diff Gas_Offset Winter Setpoint Maximum Supply Air Temperature limitation If the supplied air is too high, this function can proportionally reduce the burner capacity as the figure below: Normal capacity Room Temp. -
Page 22: Gas Burner Two Stage
20 SysAer 3.11.4. GAS BURNER TWO STAGE In Winter mode, two contacts control the gas burner stages as shown in the following diagram: compressor Stage 2 Stage 1 operation Room Temp. Gas_Diff Comp_Diff Gas_Offset Winter Setpoint Maximum Supply Air Temperature limitation If the supplied air is too high, this function can limit activation of one or both the burner stages as the figure below: Activatable... -
Page 23: Set Point Compensation
SysAer 3.12. SET POINT COMPENSATION Set point compensation allows saving energy when external temperature values are particularly unfavourable considering the demands of the room to be controlled. The compensation can also be used to increase the comfort. Compensation varies the control set point according to external temperature. This function is available with the external air temperature sensor. -
Page 24: Room Air Quality Control
22 SysAer Winter Compensation Winter set point compensation is enabled when the following conditions are encountered: the unit is in winter mode STPCOMP Compensation set point [°C] COMPM Maximum compensation [°C] DIFFC Compensation differential [°C] External temperature [°C] Compensation - Positive differential Example with manual Heating setpoint = 21°C Heating STP 21°C... -
Page 25: Smoke Detector
SysAer 5. SMOKE DETECTOR The smoke detector is an option. When smoke is detected in the room air, the exhaust blower and the Economizer (external damper) are managed separately via the Service menu. The unit goes into override shutdown, the main and return fan are stopped but the economizer can be configured open or closed depending on the legislation applicable in the country of installation. -
Page 26: Daily Scheduling
24 SysAer 6.2. DAILY SCHEDULING The daily scheduling can be managed by two different ways: ON/OFF ² Unoccupied mode ² For both options it is necessary to configure a time band with the Start and End hours, that determines 2 zones: inside and outside the band. -
Page 27: User Interface
SysAer 7. USER INTERFACE The terminal is a 6-button, 4-line x 20-character LCD model, which can display text in various sizes and icons. Alarm Prog Enter Escape Down 7.1. KEYPAD ALARM: pressing this key calls up the first active alarm screen. Pressing the key again resets the active alarm or alarms. -
Page 28: User Interface Connection
26 SysAer 7.4. USER INTERFACE CONNECTION The semi-graphic terminal is connected to the controller using the supplied 80cm telephone cable between the back of the terminal and the J10 plug of the controller. For other applications, it is possible to extend the distance between the terminal and the controller: Up to 50m using a 6-wire shielded telephone-type cable, 2 telephone 6-pin connectors (straight pin ²... -
Page 29: Multi Rooftops Installation
SysAer 7.5. MULTI ROOFTOPS INSTALLATION 7.5.1. PRINCIPLE 7.5.1.1. SHAREDE DISPLAY When an installation is composed of many units (in different zones/groups or not), it is possible to connect all the Rooftops together and display each unit parameters using only one interface for the whole installation. 7.5.1.2. -
Page 30: Connections
28 SysAer Touche de Rx-/Tx- Rx+/Tx+ programmation Carte d’horloge FUSIBLE In PLAN, it is possible to connect up to 32 elements (controllers or terminals) identified by their individual address from 1 to 31 for controllers and 1 to 32 for terminals (displays). The 32 unit must always be a terminal. -
Page 31: Addresses Configuration
SysAer 7.6. ADDRESSES CONFIGURATION By default, the controllers are always configured with the PLAN address 1, while the terminals have the address 32. The configuration of the addresses of the controllers and the terminals is done with the following procedure: To modify the controller address, the terminal must have the address 0. - Page 32 30 SysAer Share the terminal for all the controllers: The simplest way to configure a PLAN network is to give to the controllers the addresses from 1 to x ² and to give to the display(s) the addresses 32, 31, 30 …. Connect the 0-address display to the controller ²...
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Page 33: Access To The Units Of The Plan Network Via The Single Terminal
SysAer In the display address of Trm1, put the address ² P:11 Adr Priv/Shared of the display (32 for the example). Press Trm1 32 Sh ENTER. In the Pr field of Trm1, put Sh (with the Trm2 None — UP and DOWN keys): Trm3 None —... -
Page 34: Treco Function Controller
32 SysAer 7.8. TRECO FUNCTION CONTROLLER 7.8.1. USER INTERFACE This terminal has a liquid crystal display and has 6 buttons. Info Alarm Down Enter Escape 7.8.2. KEYPAD From any screen, this button returns the user to the main menu or home screen and, like the ESCAPE button, INFO invalidates a current modification. -
Page 35: Menus
SysAer 7.8.4. MENUS 7.8.4.1. MAIN MENU Main Menu Pressing the "Info" button displays this screen directly. The authorized menus are displayed according to the access level Status selected: Access The display has several menus. The "Status" menu is freely accessible. Main Menu The other "Installation"... - Page 36 34 SysAer 7.8.4.3. COMMISSIONING MENU Limited access with the "Installer" or "Maintenance". Main Menu Status Commissioning Commissioning 7.8.4.3.1. TIME SETTINGS 03.02.2016 10:40:05 Services Language selection Communications Access Versions Start by configuring the date and time. To do so, switch to the "Installer" or "Maintenance" profile in the "Installation" section. The first line of the menu is used to set the date and time.
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Page 37: Service Menu
SysAer Main Menu 7.9. SERVICE MENU Status Commissioning Limited access with the "Maintenance" profile. Services Service Access Operation hours Operation hours Save / load Compressor 0.0 h -Reversing valve 0.0 h Save / load 1/10 SD-Card Readwrite Settings save-> SD +Settings load <- SD Filter Restart required ! -
Page 38: Alarm Management
36 SysAer 8. ALARM MANAGEMENT 8.1. MAIN CONTROLLER ALARMS (CAREL) When an Alarm is triggered, action is taken on devices, where this option is provided for, and the LED, remote relay and relevant screens are all activated at the same time. To view the alarm triggered, simply press the Alarm key - you can then use the UP/DOWN keys to scroll through the list and view other alarms that might have been triggered. - Page 39 SysAer Code Alarm description Action Reset Delay Notes B7 sensor fail Stops the AL26 - OAT Manual 60 s functions - CST 1 Circuit 1 OFF Needed for EEV1 B8 sensor fail Stops the AL27 - OAT Manual 60 s functions - CST 2 Circuit 2 OFF...
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Page 40: Alarm Log
38 SysAer 8.2. ALARM LOG The log is always available. If the board has a clock card fitted, the hour and date of appearance of each alarm are also stored. Logging date and hour Alarm index Short alarm N°002 12:14 28/11/16 description Fan and compressor 1 overload... -
Page 41: Treco Module Alarms
SysAer 8.4. TRECO MODULE ALARMS Main overview Trigger all circuit breakers. Silence the alarm. requested mode from Main Ctrl If at least one alarm or warning is in progress, the alarm button flashes. Operating mode Press the 'Alarm' button to access the latest current alarm. The Alarm list detail screen displays the latest alarm activated with a description, the date and time at which it occurred. - Page 42 40 SysAer Carel Siemens Alarm Activation condition Deactivation condition alarm displayed alarm Mix air temp.: Mix air T°: MAT sensor disconnected MAT sensor reconnected openLoop openLoop Mix air temp.: Mix air T°: MAT sensor shorted MAT sensor replaced shortedLoop shortedLoop Return air T.: Return air T°: RAT sensor disconnected...
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Page 43: Servicing (Carel)
SysAer 9. SERVICING (CAREL) 9.1. COMPRESSOR AND UNIT HOUR-METER CONTROL At any time, it is possible to check the number of compressors running hours for unit maintenance. When the hour-meter of the individual device reaches the set alarm threshold (Maintenance menu), the maintenance alarm related to the relevant device is activated. -
Page 44: Menu Description (Carel)
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- Page 62 As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos. Systemair AC SAS Route de Verneuil 27570 Tillières-sur-Avre FRANCE & : +33 (0)2 32 60 61 00 6 : +33 (0)2 32 32 55 13...
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