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Summary of Contents for AIRSYS UniCool 7V1T2
- Page 1 UniCool Installation & Operation Manual Wall Mounted Packaged Air Conditioners Unit Models 7V1T2/7V1B2/11V1T3/11V1B3/15V1T4/15V1B4/28V1B5/28V2B5 Controller Model ASMUC.6/ASMUC.6.AC/ASMUC.6.DC ASCT-P-IM-UniCool-E2306V02.1...
- Page 2 AIRSYS. The information contained in this document is subject to change without notice. AIRSYS provides this material as is and makes no warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. AIRSYS shall not...
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Page 3: Table Of Contents
3.1.1 Delivery 3.1.2 Warranty 3.1.3 Moving the Unit 3.1.4 General Safety Rules Required Materials 3.2.1 AIRSYS Supplied Materials 3.2.2 Materials Supplied by Installer 3.2.3 Summary Electrical Ratings (Wire Sizing) Physical Installation 3.3.1 Select the Wall for Installing the Unit 3.3.2 Clearances 3.3.3 Pouring the Concrete Pad (B5 Cabinet Only) - Page 4 Introduction Complete Electrical Connections 3.5.1 Cautions 3.5.2 Output Alarms 3.5.3 Input Alarms 3.5.4 DC Fail-Over Input 3.5.5 Electrical Connection to Controller Box 3.5.6 Supplying Power to WPUs Complete the Installation Checklist System Commissioning 3.7.1 Turn on Component Breakers and Primary Power 3.7.2 Verify Proper Phase connection (3 Phase Power Only) 3.7.3 Upgrade System Software 3.7.4 Change System Units (Optional)
- Page 5 Introduction 4.9.3 Heater Operation 4.9.4 Dehumidification 4.9.5 Generator Run 4.9.6 Emergency Ventilation 4.9.7 Sea-side Mode 4.9.8 AFPD 4.9.9 Condenser Monitoring 5. System Parameters and Default Values Step Test Menu Parameters HVAC Config Menu Parameters Control Configuration Menu Parameters Accessing the System Menu Accessing the Debug and Hardware Configuration Menus 6.
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Page 6: Introduction
Introduction 1. Introduction... -
Page 7: Using This Manual
Thank you for choosing a unit manufactured by AIRSYS. The AIRSYS UNICOOL line of wall mounted HVAC systems is optimized for energy efficient removal of heat generated by electronics from enclosed shelters. All units are equipped with variable speed inverter compressors, variable speed EC fans, and an advanced control system that increases system efficiency while reducing wear and tear. -
Page 8: Table 1-1 Packaging Symbols
For safety and to achieve the highest levels of performance, always follow the warnings and cautions in this manual when handling and operating the AIRSYS unit. Danger. Emphasizes hazardous conditions that could cause personal injury or death. -
Page 9: Model Identification
Introduction 1.2 Model Identification Each unit is identified by a model number, such as 11V1T3MR410AAC. The elements in the number are explained in Figure 1-1 Model Number Figure 1-1 Model Number R410 Nominal kW. Total Cooling Capacity Compressor Type: V: Variable Capacity E: Fixed Capacity Scroll R: Fixed Capacity Rotary Compressr Qty... -
Page 10: Acronyms And Abbreviations
Table 1-2 lists acronyms and abbreviations used in this manual. Table 1-2 Acronyms and Abbreviations Term Meaning Ampere, unit of electric current, or rate of flow of electricity AAST AIRSYS Authorized Service Technician Alternating Current AFPD Air Filter Protection Device AUT/MAN Automatic/Manual... -
Page 11: Product Overview
Product Overview 2. Product Overview... -
Page 12: Figure 2-1 Operating Modes (Top Supply)
Product Overview The air conditioning system has three key components: the mechanical cooling system, the free cooling system (economizer), and the control system. The control system determines the unit’s mode of operation: free cooling or mechanical cooling, as shown in Figures 2 and 3. Mechanical Cooling Mode Free Cooling Mode Figure 2-1 Operating Modes (Top Supply) -
Page 13: Free Cooling System
Product Overview Mechanical Cooling Mode (B5) Free Cooling Mode (B5) Mechanical + Free Cooling Mode (B5) Figure 2-2 Operating Modes (Bottom Supply) 2.1 Free Cooling System When the operating conditions for free cooling are met, the control system switches the air damper to the free cooling position. -
Page 14: The Control System (Asmuc.6 Controller)
Product Overview 2.5 The Control System (ASMUC.6 Controller) By default, the ASMUC.6 controller can control up to 6 AIRSYS Precision Cooling WPUs (16 with expansion module) organized in up to 4 zones. The setpoint for each zone can be adjusted independently. -
Page 15: Turbo Boost
Product Overview 2.10 Turbo Boost In situations such as extreme outdoor temperature, the heat load of the building may exceed the nominal cooling capacity of the system. In those cases, Turbo Boost can automatically overdrive the units to provide up to 125% of the rated capacity at the cost of some efficiency. 2.11 Quiet Mode Quiet mode reduces noise by 10-14 dBA by limiting the maximum speed that the compressor can run at. -
Page 16: Installation
Installation 3. Installation... -
Page 17: Installation Preparation
Danger. All the installation work must be done by professional technicians. Installation that does not comply with the instructions herein can result in the loss of warranty coverage. AIRSYS shall not be held liable for any damage caused to persons or objects due to incorrect installation or operation of the units. -
Page 18: Warranty
Installation 3.1.2 Warranty The warranty duration is 12 months from the date of installation. AIRSYS warrants that its products will be free from defects in materials and workmanship for a period of 12 months after installation. The compressor is to be free from defects in material or workmanship for a period of 60 months from date of installation. -
Page 19: Required Materials
3.2.1 AIRSYS Supplied Materials Table 3: AIRSYS Provided Materials lists all material supplied by AIRSYS. After opening the package, verify that all items are accounted for. If any material is missing, please contact an AIRSYS distribution center using the following information: AIRSYS Cooling Technologies Email: Support@air-sys.us... -
Page 20: Materials Supplied By Installer
For locking the breaker panel if necessary 1021006360 3.2.2 Materials Supplied by Installer Table 3-2 lists items required for installation that must be supplied by an AIRSYS Authorized Service Technician (AAST). The wire length and gauge depend on site-specific conditions. However, recommendations are provided. - Page 21 Installation Item Description Comments Same as DC Circuit Breaker (DC number of 1 breaker for each WPU Refer to Summary Electrical Ratings supply fan models only) units DC Circuit Breaker for 1 breaker for the Max current capacity 0.8A controller controller Same as The ethernet (CAT5/5E/6) cable...
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Page 22: Summary Electrical Ratings (Wire Sizing)
Installation 3.2.3 Summary Electrical Ratings (Wire Sizing) Table 3-3 WPU Electrical Ratings Circuit #1 Circuit #2 Model AC/DC 48VDC AC/DC 48VDC 7V1B2MR410AAC 7V1T2MR410AAC 7V1B2MR410ADC 7V1B2MR410ADC2 11V1B3MR410AAC 11V1B3MR410ADC 11V1T3MR410AAC 11V1T3MR410ADC 11V1B3MR410BAC 15V1T4MR410AAC 15V1B4MR410AAC 15V1B4MR410BAC 15V1B4MR410CAC 15V1B4MR410CACxxxD 28V2B5MR410AAC 28V1B5MR410BAC 28V1B5MR410BAC-SC 28V1B5MR410CAC Note: Electrical Ratings are accurate at the time this document is produced. These ratings are always superseded by the nameplate on the equipment. -
Page 23: Physical Installation
Installation 3.3 Physical Installation To see unit dimensions, please consult Appendix C: Mechanical Drawings 3.3.1 Select the Wall for Installing the Unit Select the wall where the unit will be installed. Be certain that the wall can support the weight of the unit and that enough space is available for easy operation and installation, both inside and outside the mounting location. -
Page 24: Pouring The Concrete Pad (B5 Cabinet Only)
Installation 3.3.3 Pouring the Concrete Pad (B5 Cabinet Only) Due to the extreme weight of the B5 cabinet, a concrete pad may be necessary to support the weight of the unit. The pad should be poured in advance and be able to support the weight of the unit (1370 lbs/621 kg). 3.3.4 Make Openings in the Wall Make openings for supply and return air and cable and bolt holes in the installation wall as shown in Figures 4-5. -
Page 25: Install Weather Stripping
Installation Note: The template printed on the shipping carton can be used to create wall cuts. Table 3-8 Openings and Holes in the Wall (Top Supply) Cabinet Size 29-3/4 29-3/4 9-11/16 9-11/16 15-11/16 15-11/16 30-1/4 30-1/4 3.3.5 Install Weather Stripping Before mounting the unit on the outside wall, fix neoprene weather stripping (installer provided) around the openings of the air supply and the air return to ensure an airtight closure, as shown in Figure 3-1 Weather stripping... -
Page 26: Position The Unit
Installation 3.3.6 Position the Unit Important. The unit is heavy. Exercise caution while putting the unit in place to prevent damage to the WPU or personnel. The unit must be installed in a level position. An inclination of more than 6-7 mm (± 1°) could cause the condensation tray to overflow (Figure 3-3). -
Page 27: Remove Wooden Pallet From Wpu
Installation 3.3.7 Remove Wooden Pallet from WPU The WPU is bolted to a wooden pallet to facilitate safe lifting and transport of the unit. Four bolts attach the pallet to the unit, as shown in Figure 3-6. The pallet frame is recessed under the WPU to allow for easy installation while using a forklift. -
Page 28: Attach The Supply Air Grill And The Return Air Grill To The Wall
Installation 3.3.10 Attach the Supply Air Grill and the Return Air Grill to the Wall The supply and return air grills should be installed at the holes inside the shelter as shown below: Figure 3-6 Install Supply and Return Air Grilles Install the supply and return air frames (and exhaust air frame for 28V1) into their respective cutouts. -
Page 29: Figure 3-8 Prefill Water To Drain Trap
Installation 3.3.12 Prefill Water to Drain Trap (28V1B5/28V2B5 Only) For proper drainage, prefill water in drain trap. Draining hole on the water tray Add Water to this level About 300ml (10oz). Figure 3-8 Prefill Water to Drain Trap... -
Page 30: Controller Box Installation
Installation 3.4 Controller Box Installation Find a suitable location inside the shelter to mount the controller box. Mount the controller box so that the PGD is near the eye level of the intended operator. -
Page 31: Install Outdoor Temperature Sensor
Installation Table 3-9 Key Components in the Controller Box Assembly Temperature Sensor PGD Display Humidity Sensor Control Module Network Switch Input Breaker 3.4.1 Install Outdoor Temperature Sensor The outdoor temperature sensor (ST3) that is connected to the controller box must be installed outside the shelter. -
Page 32: Position The Humidity Sensor
Installation Thread the outdoor temperature sensor through a port at the bottom of the controller box. Thread the outdoor temperature sensor from the controller box through the hole in the bottom of the box. Secure the sensor to the bottom of the box with a nylon zip-tie. Secure the box to the outside wall. -
Page 33: Position Indoor Temperature Sensor
. Noncompliance with these instructions may cause damage to the WPU or the controller Important box. Not following instructions can void the warranty. . No modification to the unit’s electric circuit is allowed. If a change is required, it must Important be authorized by AIRSYS in writing. -
Page 34: Output Alarms
Installation 3.5.2 Output Alarms Output alarms are dry contract outputs from the ASMUC to a remote monitoring block/station. Consult the ASMUC wiring diagram in Appendix B for wiring locations. 3.5.2.1 High/Low Temp Alarm A high temp alarm will trigger when the indoor temperature has exceeded the high temperature setpoint for at least 1 minute. -
Page 35: Dc Fail-Over Input
Installation minimize generator load. The default setting is Normally Open (NO), which can be changed to Normally Closed (NC) in the “Alarms” menu under the Control Config Menu. AL*07 (Generator Run) will display if this input is triggered. Optional: Enable the multiple compressors during generator run in the “Generator Run” section of the Unit Config menu. - Page 36 Installation Ensure the PGD cable is FIRMLY plugged into the user interface terminal located on the inside of the controller box cover. Ensure that terminal J3 (behind J10) is securely plugged in to the control module. Connect one ethernet cable per unit from a port on the network switch to the control module inside the unit (Behind J12).
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Page 37: Supplying Power To Wpus
Installation 3.5.6 Supplying Power to WPUs Bring the power cable(s) to the WPU through either the side panel or the back panel Connect the power cables to each WPU (Refer to nameplate for electrical ratings) . Do not run high voltage cable along same exterior conduit as low Important voltage/communication wire. -
Page 38: Complete The Installation Checklist
Installation 3.6 Complete the Installation Checklist The physical installation should be complete. Prior to starting the system, ensure that no steps have been omitted by completing this installation and wiring checklist. Date: _____________________Unit Factory Number:________________ (refer to the unit name plate) Verify Physical Installation Weather stripping has been attached to the air inlets and outlets of the WPUs between the wall and the unit. -
Page 39: Upgrade System Software
Installation Verify “Normal” LED on the phase monitor (FV) is lit. Correct phase rotation if necessary. Figure 3-11 Phase Monitor 3.7.3 Upgrade System Software See Chapter 7: System Update for instructions. This is only required if the HVAC units or controller were obtained at different times or if a HVAC unit is being added to an existing install. -
Page 40: Remove The Pgd From The Controller (If External Display Not Available)
Installation Figure 3-12 IP Configuration Press Enter until the cursor is over the relevant fields of the IP address and Mask. Use the Up or Down buttons to change them to the desired values. • IP: Use the IP given by end user for remote monitoring •... -
Page 41: Set The Unit Ip Addresses
Installation 3.7.7 Set the Unit IP Addresses The IP address of each unit needs to be set prior to integration into the control network. Connect a PGD to the control module inside the unit using the preinstalled connector. Hold the Esc button until the main screen is displayed. Hold Alarm and Enter for 3 seconds to enter the unit configuration menu. -
Page 42: Set The Number Of Units And Zones
Installation 3.7.10 Set the Number of Units and Zones Note: If the PGD was removed from the controller to configure the unit IP addresses and the model and serial numbers, it must be reconnected before proceeding with the following steps. On the main controller hold the Esc button until the main screen is displayed. -
Page 43: Match Unit Id With Ip Address
Installation 3.7.12 Match Unit ID with IP Address Note: You can skip this step if you did not change the address of the unit from the default 172.168.11.X where X is the unit #. The IP address of each unit must be matched to a unit ID. When this step is done, each unit will have a corresponding IP address. -
Page 44: Execute The Step-Test
Installation 3.7.14 Execute the Step-Test The step test systematically verifies that key components of the system are operating as expected. Note the following considerations: • The steps in the test can be executed in any order; they do not need to be sequential. •... -
Page 45: Set The System Clock
Installation Table 3-10 Step Test Name Action Notes Supply Fan Turns on supply fan Heater Turns on electric heater Supply fan will run at full speed Condenser Fan Turns on condenser fan Supply fan will run at full speed, condenser fan speed will adjust according to the pressure. -
Page 46: Verify Indoor Setpoint
Installation Press Esc until the main screen is displayed. Press Down until the “i" icon is showing in the bottom right of the display and press Enter. Press Down until a “Controller Info” is displayed. View the readings shown on the display and verify that they are correct. Wrap a hand around the temperature sensors and verify that the readings change. -
Page 47: Clearing Alarm History
Installation • The Smoke/Fire Alarm is connected to 41 and 5 on the controller terminal block. If the smoke/fire detector does not have a test button, remove one of the wires from terminals 41 and 5; the system should shut down. -
Page 48: Complete The Registration Card
The following pictures show serial number locations for the WPU and control box. The nameplates can be found on the outside of the WPU and on the front of the controller box. These must be recorded on the AIRSYS Product Warranty Registration Card. The registration card can also be submitted online at... - Page 49 Confirm indoor temperature setpoint Verify Signal from Generator Verify Smoke/Fire Alarm 10. Verify HVAC Alarms 11. Verify DC-Failover (if installed) 12. Clear Alarm History (Optional) 13. Fill out Warranty Card and send to AIRSYS Cooling Technologies ...
- Page 50 Installation AIRSYS PRODUCT WARRANTY REGISTRATION CARD PRODUCT INFORMATION Serial #: Controller Model #: ________________________ _________________________ Serial #: WPU #1 Model #: ________________________ _________________________ Serial #: WPU #2 Model #: ________________________ _________________________ Serial #: WPU #3 Model #: ________________________ _________________________ Serial #:...
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Page 51: System Operation
System Operation 4. System Operation... -
Page 52: User Interface Introduction
System Operation This chapter describes how to use the PGD interface (Table 4-1)to execute the functions needed during standard operation. This information may be useful during troubleshooting and in conversations with technical support. For a list of changeable parameters, see Chapter5 System Parameters and Default Values The following topics are covered: •... -
Page 53: Navigating Menus
System Operation Button Function Description Select a parameter to be changed. Enter Confirm a changed parameter. Scrolls down through menu screens and options Down Decrease the value of selected parameter. 4.2 Navigating Menus The user interface is broken down into main menus and program menus. Main menus are accessed through the main screen, while program menus are accessed through the program menu selection screen. -
Page 54: Turning The System On And Off
System Operation The system status is shown in the bottom left corner. There are 5 possible statuses, which are shown in Table Table 4-2 System Statuses System Status Status Description Notes Unit is on Off By Alarm Unit operation is stopped due to alarms Displayed on HVAC when the master Off By BMS Unit has been turned off by the BMS... -
Page 55: Changing The Setpoint And Free Cooling Humidity Limit
System Operation 4.3.2 Changing the Setpoint and Free Cooling Humidity Limit The setpoint for each zone can be independently adjusted from the controller. In addition, the free cooling humidity limit can be adjusted, but will apply for the whole network. Hold the Esc button until the main screen is displayed. -
Page 56: Changing System Units
System Operation Figure 4-5 Comfort Mode Screen 4.3.4 Changing System Units By default, the system operates using units of °F and psi for temperature and pressure. These can be changed to metric units if desired. Hold the Esc button until the main screen is displayed. Press Up and Down together to enter the debug menu. -
Page 57: Table 4-3 Controller Info Menu
System Operation Table 4-3 Controller Info Menu Menu Screen Parameter Description Network Status Network Status View unit status ID Fan Supply fan speed Comp Compressor speed OD Fan Condenser fan speed HVAC Info Damper Damper position Heater Heater Status Energy consumption Status Unit status 1 Hour... -
Page 58: Viewing Unit Information
System Operation 4.3.6 Viewing Unit Information Information such as suction and discharge temperatures, system pressures, compressor speed, and energy consumption can be viewed for all units from the controller. Table 4-4 contains unit information that can be viewed either at the controller or directly at the unit. All parameters are read-only. Hold the Esc button until the main screen is displayed. - Page 59 System Operation Menu Screen Parameter Description Cond. Sat. Temp Condensation saturation pressure Suct. Temp Suction temperature Suct. Sat. Temp Suction saturation temperature EEV Step EEV Step EEV Status EEV opening percentage EEV Info Super Cool Unit Subcooling Super Heat Unit Superheat Supply temp.
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Page 60: Program Menus
The user level gives limited access to system parameters, the service level allows access to critical component settings such as the EEV and compressor, and the manufacturer level allows for modification of all system parameters. The default passwords for the user and service levels are 0003 and 0004. Contact AIRSYS Support for access to manufacturer parameters. -
Page 61: Table 4-5 Step Test
System Operation Press Enter to access the menu. Press Enter, the cursor should be next to “Select HVAC ID”. Press Up or Down until the unit to be tested is selected, then press Enter. Press Down, then press Enter. The cursor should be next to STOP. Use the Up and Down buttons to select the desired test and press Enter to confirm. -
Page 62: Alarms
System Operation Note: The unit will stay under manual control until step “STOP” is selected. Make sure that “STOP” is selected and the unit is on before leaving the site to avoid potential high temperature alarms. To verify, the system status on the main screen should be “ON”. -
Page 63: Alarm History
System Operation Code Description User/Auto Reset AL*55 Supply Fan Overload Auto reset AL*56 High Pressure Alarm Auto reset AL*57 Low Pressure Alarm Auto reset AL*58 Low Pressure Limit Alarm Auto reset AL*59 Stuck Filter Alarm Auto reset AL*60 AFPD Protection Triggered Auto reset AL*61 High Supply Temperature Alarm... -
Page 64: Figure 4-10 Alarm Logs
System Operation Figure 4-10 Alarm Logs... -
Page 65: Clearing Alarm History
System Operation 4.6.2 Clearing Alarm History At significant points such as during preventative maintenance, it may be desired to clear the alarm history. Warning. Alarm history is collected because it can be very helpful in identifying a problem with the system. The alarm history should never be arbitrarily cleared by an operator. -
Page 66: Exporting Alarm History
In some cases, it may be necessary to restore the controller to factory defaults. Depending on the option selected, custom setpoints and other system parameters will be changed to factory defaults. Note: Resetting factory defaults should only be done under the instruction of AIRSYS support. There are three types of available factory resets: •... -
Page 67: Set The Master
System Operation Important. System must be commissioned if you reset it to factory default. Follow the commissioning steps on Page 38 to re-commission the system To perform a factory reset perform the following steps: Hold the Esc button until the main screen is displayed. Press Prg and enter the password (0004). -
Page 68: Operational Logic
4.9.2 Mechanical Cooling Operation All AIRSYS Precision Cooling WPUs have variable speed compressors which will adjust their speed to match the heat load inside the shelter. The compressor logic will vary based on whether free cooling is engaged. If free cooling is enabled, the compressor will not start until the indoor temperature has reached a predetermined level above the setpoint (default 2°F). -
Page 69: Heater Operation
System Operation 4.9.3 Heater Operation The heater will activate when the indoor temperature reaches a predetermined level below the setpoint (default 29°F). The heater will then run until the temperature is a certain level above the on point (default 3°F). These settings can be configured under “Heater”... -
Page 70: Sea-Side Mode
System Operation 4.9.7 Sea-side Mode Seaside mode will disable free cooling unless the conditions for emergency ventilation are met. 4.9.8 AFPD The Air Filter Protection Device (AFPD) will automatically shut the damper when it detects a particulate concentration that is higher than a preset concentration (adjustable between 0.15-0.35 mg/m ). -
Page 71: System Parameters And Default Values
System Parameters and Default Values 5. System Parameters and Default Values... -
Page 72: Step Test Menu Parameters
System Parameters and Default Values This section provides a listing of all changeable parameters in the PGD user interface. Authorized technicians may use the information in this section to change factory settings. The main menu and associated menu screens are covered in “Main Screen” on Page 53. 5.1 Step Test Menu Parameters The Step Test menu is used to access the step test. -
Page 73: Table 5-2 Parameters In The Supply Fan Menu
System Parameters and Default Values Table 5-2 Parameters in the Supply Fan Menu Menu Screen Option Description Default Min Speed Minimum allowed fan speed Condensing Fan Speed Max Speed Maximum allowed fan speed 100% Setpoint Condensation pressure setpoint 391.6 psi Deadband Condensation pressure control deadband 21.8 psi... -
Page 74: Table 5-5 Carel Eev Configuration Options
System Parameters and Default Values Menu Screen Option Description Default Max Open Maximum opening percentage 100% Manual Open Manual opening percentage Enable MOP control. 0/1 represents MOP Enable Disabled/Enabled MOP Set MOP Setpoint 13.6K EEV Kp Proportional control setting EEV Ki Integral control setting EEV Kd Derivative control setting... -
Page 75: Table 5-6 Parameters In The Compressor Menu
System Parameters and Default Values Menu Screen Option Description Default Integral time Integral control setting Alarm delay Alarm delay time 300s Threshold High evaporation temperature threshold 78°F MOP Protection Integral time Integral control setting Alarm delay Alarm delay time 600s Enable Enable/Disable manual positioning Disabled... -
Page 76: Table 5-8 Additional Inverter Settings (Eu)
System Parameters and Default Values Menu Screen Option Description Default Enable Comp. INV Enable compressor inverter Enable INV Factory Inverter driver manufacturer Device address Driver address Comp. & INV New address New driver address Cmd. delay Driver instruction delay time 20ms Timeout Driver instruction timeout... - Page 77 System Parameters and Default Values Menu Screen Option Description Default Maximum pressure differential Max pressure differential 3 bar allowed during start up Equalization mode Start up pressure Preopening Differential Control Max Equaliz. Time Maximum equalization time EEV opening percentage during EEV Opening 100% equalization...
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Page 78: Table 5-10 Parameters In The Alarms Menu
System Parameters and Default Values Menu Screen Option Description Default Offset Discharge Offset Discharge Hysteresis Discharge Hysteresis Temperature Control Suction Superheat/Discharge Suction Actual work model Superheat Superheat Table 5-10 Parameters in the Alarms Menu Menu Screen Option Description Default Smoke/fire Smoke/fire alarm logic Generator run Generator run alarm logic... -
Page 79: Control Configuration Menu Parameters
System Parameters and Default Values Menu Screen Option Description Default Retry number Number of checks before alarms Alarm delay Delay before alarm triggers 12 min Low Temp Alarm Diff Low room temperature alarm trigger point 34°F Low Temp Delay time Delay before alarm triggers High room temperature alarm trigger point. -
Page 80: Table 5-13 Parameters In The Free Cooling Menu
System Parameters and Default Values Menu Screen Option Description Default Backup Number Number of Backup Units in Zone Setpoint Zone Setpoint 79°F Zone Dead Zone Zone Deadband 1.8°F Configuration Comfort Set Zone Comfort Mode Setpoint 72°F Dehum Number Number of Units in Dehumidification Cool Band PID controller dead band 1.8°F... -
Page 81: Table 5-14 Parameters In The Sensors Menu
System Parameters and Default Values Menu Screen Option Description Default Humidity limit Free cooling humidity limit Disable Max Humidity Maximum humidity for free cooling Humidity below the limit at which free cooling will Humidity Deadband be re-enabled Enable Parti. Freecool Enable Partial Free Cooling Disable Free-cooling... -
Page 82: Accessing The System Menu
System Parameters and Default Values Room temperature sensor Room temp 0°F offset Outdoor temperature sensor Outdoor temp 0°F offset Compressor discharge Dscg temp 0°F temperature sensor offset Suct. press Suction pressure sensor offset 0 psi Sensor Offset (Unit Only) Condensing pressure sensor Cond. -
Page 83: Table 5-17 Debug Menu Options
Note: The Debug Menu should not be accessed outside of initial startup or system update unless directed by AIRSYS Support or the site technician. To enter the Debug Menu, press Up and Down at the same time from the main screen. -
Page 84: Preventative Maintenance
Preventative Maintenance 6. Preventative Maintenance... -
Page 85: General Operation Check
Danger. Stop the machine and remove the power supply from the equipment before performing maintenance operations. Important. All PM should be performed by an AIRSYS Authorized Service Technician (AAST) to ensure that the manufacturer’s warranty is preserved. 6.1 General Operation Check It is a good idea to compare the operation of the equipment with the results of the previous inspection. -
Page 86: Check Wiring And Components
Preventative Maintenance 6.1.2 Check Wiring and Components For wiring and components, perform a preliminary check to verify the system is functional: • Check that the system has been installed correctly. • Check that the wiring cable sections meet current capacity. Report any incorrect mounting and setting to the AAST who installed the system so that the necessary modifications can be made. -
Page 87: Inspect And Clean Condenser Coils
Preventative Maintenance Clean the filter Remove Take off bottom-front the filter panel 6.1.6 Inspect and Clean Condenser Coils During times of peak usage, the condensing coils must be able to offer maximum thermal exchange. Debris such as paper, dead leaves, and dust can be sucked in around the coils, reducing the thermal exchange rate. Dirty condenser coils may trigger the high-pressure switch and cause the compressor to lock out. -
Page 88: Operation Checklist
Preventative Maintenance • Check if the nuts are properly tightened, as shown in the following images 6.2 Operation Checklist If a problem with the system is experienced, use this checklist to verify the system and determine the root cause. Keep these records for future inspections. Address: ___________________Site No.: _______________________ Date: _____________________ Unit Factory Number:_____________________________ (refer to the unit name plate) Check Items... -
Page 89: System Update
System Update 7. System Update... -
Page 90: Local Software Update
All required software and upgrade packages will be provided by AIRSYS. To request an update package, contact AIRSYS Support at Support@air-sys.us. Updates can be performed via the web interface or the USB connection. A microUSB to USB cable is required to perform the update. -
Page 91: Figure 7-2 Detaching Display
System Update Figure 7-2 Detaching Display Connect the computer to the micro USB port on the controller board inside the unit. The controller should become visible as external storage “USB Drive” on the PC. Copy the AP1 file to the “Upgrade” folder. Copy the HTTP folder to the root directory (“USB Drive”) and overwrite the existing files. - Page 92 System Update Disconnect the USB cable from the controller board inside the unit. The upgrade process will automatically start. 10. Once the upgrade is complete, the screen will display “Upload successful” and return to the main screen. This may take up to 5 minutes. 11.
- Page 93 System Update • Model numbers of connected units. (Optional) Record any other settings, such as temperature setpoint, that are to be maintained. Step 3: Upgrade Controller (ASMUC) Connect the computer to the micro USB port on the controller board inside the ASMUC. The controller should become visible as external storage “USB Drive”...
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Page 94: Remote Software Upgrade
System Update • Total # of HVAC and Total # of Zones • IP address of all connected HVAC units • Zone assignment, which units are assigned to which zones. • Model number of connected units Re-enter any other setting that has been manually saved. Step 5: Restore and Verify Controller Operation Hold Esc until the main screen is displayed. -
Page 95: Figure 7-6 Master/Hvac Status
System Update Figure 7-6 Master/HVAC Status Select “Upgrade” tab on the left. Click “Choose File” under “C.pCO AP1 Upgrade” and select the previously downloaded AP1 file. Figure 7-7 File Selection Screen Click “Upgrade AP1 to c.pCO”, the upgrade process will start. Once the upgrade is complete, the status will display “Upload successful”. - Page 96 System Update • IP address of all connected HVAC units (Press Enter and use the Up and Down buttons to cycle through units. Press Enter to display the IP of each unit.) • Zone assignment (which units are assigned to which zones). •...
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Page 97: Figure 7-8 File Selection Screen
System Update Step 3: Upgrade Controller (ASMUC) Select “Upgrade” tab on the left. Click “Choose File” under “C.pCO AP1 Upgrade” and select the previously downloaded AP1 file. Figure 7-8 File Selection Screen Click “Upgrade AP1 to c.pCO”, the upgrade process will start. Once the upgrade is complete, the status will display “Upload successful”. -
Page 98: Figure 7-9 Network Status
System Update Press Down until an info. icon (i) is displayed in the bottom right corner and press Enter. If the controller has re-established communication with the units, ON or OFF status should be displayed for every unit. Figure 7-9 Network Status Step 6: (Optional) Update HTTP files Note: Updated webpages may change the look of the HTML page and may include more information not previously available. -
Page 99: Spare Parts
Spare Parts 8. Spare Parts... -
Page 100: Table 8-1 Top Supply Wpu Part Identification (T2/T3/T4)
Spare Parts For all part requests, please contact: AIRSYS Cooling Technologies Web: http://airsysnorthamerica.com Email: Support@air-sys.us Phone: 855-874-5380 Number Part Name Number Part Name Number Part Name Supply Fan Sight Glass Electrical Box Evaporator Coil Dry Filter Panel, Front Upper Thermal Cutoff Switch... -
Page 101: Table 8-2 Bottom Supply Wpu Part Identification (B2/B3/B4)
Spare Parts Number Part Name Number Part Name Number Part Name Condenser Fan Invertor Panel, Bottom Left Installation Support Bar Panel, Top Detuned Reactor Condenser Coil Panel, Front Bottom Evaporator Coil Panel, Emergency Damper Actuator Corner Post, Left Back Switch Electrical Heating Panel, Right Upper Panel, Middle Front... -
Page 102: Table 8-3 Bottom Supply Wpu Part Identification (B5)
Spare Parts Number Part Name Number Part Name Number Part Name Number Part Name Panel, Right Panel, Condenser Panel, Middle Threaded Middle Front Right Panel Right Assembly Panel, Panel, Bottom Panel, Top Middle Left Supply Fan Right Front Left Threaded Condenser Panel, Bottom Panel... -
Page 103: Appendix A: Air Frame Drawing
Appendix A: Air Frame Drawing Appendix A: Air Frame Drawing Frame Model Unit Type Supply 27 7/8 10 1/2 7V1B2 Return 27 7/8 13 15/16 Supply 29 15/16 10 1/2 11V1B3 Return 29 15/16 13 15/16 Supply 29 11/16 9 5/8 11V1T3 Return 29 11/16... -
Page 104: Appendix B: Wiring Diagrams
Appendix B: Wiring Diagrams Appendix B: Wiring Diagrams... - Page 105 Appendix B: Wiring Diagrams...
- Page 106 Appendix B: Wiring Diagrams...
- Page 107 Appendix B: Wiring Diagrams...
- Page 108 Appendix B: Wiring Diagrams...
- Page 109 Appendix B: Wiring Diagrams...
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Page 110: Appendix C: Mechanical Drawings
Appendix C: Mechanical Drawings Appendix C: Mechanical Drawings NOTE: To assist in the installation process, the following figures provide the unit dimensions to a tolerance of ± 1/16” (2 mm). 7V1T2... - Page 111 Appendix C: Mechanical Drawings 7V1B2 11V1T3...
- Page 112 Appendix C: Mechanical Drawings 11V1B3 15V1B4...
- Page 113 Appendix C: Mechanical Drawings 15V1T4...
- Page 114 Appendix C: Mechanical Drawings 28V1B5/28V2B5...
- Page 115 Appendix C: Mechanical Drawings Support Stand for 28V1B5/28V2B5...
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Page 116: Appendix D: Onsite Refrigerant Charging
Appendix D: Onsite Refrigerant Charging Appendix D: Onsite Refrigerant Charging Note: Your may charge the system with dry nitrogen to locate leak. Units may also be charged with nitrogen from factory instead of refrigerant if air freighted or otherwise required by law. A．Exhaust the Nitrogen Gas in the System The unit will be charged with nitrogen gas (0.03-0.05MPa/4.35-7.25psi) before shipment. - Page 117 Appendix D: Onsite Refrigerant Charging C. Charging Get the information of the refrigerant on the nameplate (weight, type). Use an electronic scale to measure the initial weight of the refrigerant tank. Connect the port in the middle of the 3-way gauge to the refrigerant charge port on the refrigerant tank loosely.
- Page 118 List of Tables Table 1-1 Packaging Symbols .......................... 8 Table 1-2 Acronyms and Abbreviations ......................10 Table 3-1 AIRSYS Provided Materials ......................19 Table 3-2 Installer Supplied Materials ......................20 Table 3-3 WPU Electrical Ratings ........................22 Table 3-4 Controller Electrical Ratings ......................22 Table 3-5 Dimensions and Weight by Model Number ..................
- Page 119 Appendix D: Onsite Refrigerant Charging List of Figures Figure 1-1 Model Number ..........................9 Figure 2-1 Operating Modes (Top Supply) ..................... 12 Figure 2-2 Operating Modes (Bottom Supply) ....................13 Figure 3-1 Install Weather Stripping ....................... 25 Figure 3-2 Inclination of Mounted WPU ......................26 Figure 3-3 Position the Unit ..........................
- Page 120 Appendix D: Onsite Refrigerant Charging Figure 7-4 Upgrade Folder..........................91 Figure 7-5 Network Status ..........................94 Figure 7-6 Master/HVAC Status ........................95 Figure 7-7 File Selection Screen ........................95 Figure 7-8 File Selection Screen ........................97 Figure 7-9 Network Status ..........................98...
- Page 121 AIRSYS Global Subsidiaries Contact: Headquarter AIRSYS Cooling Technologies, Inc Add: 7820 Reidville Rd. Greer, SC 29651 , USA Tel: +1 (855) 874 5380 Email: sales@air-sys.us AIRSYS (UK) Ltd. AIRSYS Singapore Pte. Ltd Add: 245 Europa Boulevard, Warrington, UK. WA5 7TN...
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