Multi-tec/th-tune free cooling unit system
multi-tec wall-mount air conditioner/
th-tune single unit controller.
the th-tune can be used as a replacement for the lc6000
controller for operation when a single multi-tec unit is used. (26 pages)
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W36LAPB W72LAPB W72AAPC W36LAPC W72LAPC W42LAPA W42LAPB W42LAPC Part of the Bard Free Cooling Unit System NOTE: LC6000 Controller is required for operation when multiple W***AP units are used. Bard Manufacturing Company, Inc. Manual : 2100-665A Bryan, Ohio 43506 Supersedes: 2100-665 www.bardhvac.com...
CONTENTS SECTION 1: Installation Instructions ......................5 List of Necessary Materials/Tools .........................6 Site Preparation ..............................7 Wall-Mount Unit Installation ..........................9 Wall-Mount Unit Supply Wiring ..........................17 Preliminary Start-Up ............................21 Running in Stand Alone (Orphan) Mode .......................21 SECTION 2: Service Instructions ....................... 23 Using the TEC-EYE ............................24 Alarms ............................
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FREE COOLING UNIT SYSTEM in accordance with the Standards of the National Fire Protection Association for the Installation of Air The Bard Free Cooling Unit System is composed of Conditioning and Ventilating Systems of Other Than MULTI-TEC wall-mounted air conditioners matched Residence Type, NFPA No.
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ANSI Z535.5 Definitions: WARNING DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. The signal word “DANGER” is to be limited to the most Electrical shock hazard. extreme situations. DANGER [signs] should not be used for property damage hazards unless personal injury risk Have a properly trained individual perform appropriate to these levels is also involved.
LIST OF NECESSARY MATERIALS/TOOLS Additional hardware and miscellaneous supplies are needed for installation. These items are field supplied and must be sourced before installation. This list also includes tools needed for installation. LIST OF MATERIALS/TOOLS • Personal protective equipment/safety devices •...
Each installation side compressor and controls) for right unit. is unique and may require special accomodations and See Specifications Sheet S3532. modifications. Although Bard Manufacturing follows a long-established tradition of manufacturing equipment CLEARANCE TO COMBUSTIBLES using industry standard dimensions for building...
WALL-MOUNT UNIT INSTALLATION MOUNTING THE UNITS 5. If desired, hook top rain flashing (attached to front- right of supply flange for shipping) under back bend of top. WARNING 6. Position unit in opening and secure with fasteners sufficient for the application such as 5/16" lag/ anchor/carriage bolts;...
FIGURE 1.5 Electric Heat Clearance FIGURE 1.6 Wall Mounting Instructions WALL STRUCTURE See FIGURE 2 – Mounting Instructions FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING...
FIGURE 1.7 Wall Mounting Instructions SEE UNIT DIMENSIONS, FIGURE 2, FOR ACTUAL DIMENSIONS. E + 1.000 ATTACH TO TOP PLATE OF WALL 1.000 1.000" CLEARANCE ALL AROUND DUCT SUPPLY DUCT OPENING INTERIOR FINISHED WALL OVER FRAME 1.000" CLEARANCE ALL AROUND DUCT RETURN DUCT OPENING EXTERIOR FINISH WALL...
FIGURE 1.8 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/GRILLE WALL SLEEVE RETURN AIR RETURN AIR OPENING W/ GRILLE...
DATE 3/17/2014 3/17/2014 The unit rating plate and Tables 1.1 and 1.2 list fuse SCALE DRAWN BY Bard Mfg. Co. and wire sizes (75°C copper) for all models including Bryan, Ohio 3/17/2014 ADDED FRENCH VERSION 11182 BD SD RP CHECKED...
TABLE 1.1 Electrical Specifications – W**AAP Series Single Circuit Multiple Circuit Rated Minimum Maximum No. Field Volts Maximum Field Circuit External Fuse or Field Power Ground MODEL Power Minimum & External Power Ground Ampacity Ckt.
TABLE 1.2 Electrical Specifications – W**LAP Series Single Circuit Dual Circuit Minimum Maximum Rated Field Circuit External Fuse or Field Power Ground Maximum MODEL Volts & Minimum Field Power Ampacity Ckt. Breaker Wire Size Wire Size External...
During installation, this allows deactivation of one of the two existing, older wall-mount units, while keeping the shelter cool with the other unit still operating. Once the first of the two Bard MULTI-TEC wall-mount units is installed, orphan mode can be enabled early in the installation—keeping the climate inside the shelter stable and the installers comfortable while the remainder of the older equipment is removed and the second Bard MULTI-TEC wall-mount unit and LC6000 controller are installed.
USING THE TEC-EYE FIGURE 2.1 TEC-EYE (Bard P/N 8301-059) Display and Interface (Status Screen Shown) UP KEY ALARM KEY MENU KEY ENTER KEY BACK KEY DOWN KEY ALARM KEY UP KEY Allows viewing of active alarms Steps to next screen in the display menu...
FIGURE 2.3 TEC-EYE Menu Structure Quick Menu Icons Quick Menu Data Log Data Log Unit Information Setpoints Unit Information Setpoints Main Menu System Configuration Advanced System Configuration Setpoints: Local Cool and Heat/Current Cool and Heat I/O Configuration If at any time the unit(s) loses communication with On/Off the LC6000 controller, the unit(s) will go to stand Alarm Logs...
3. Press UP or DOWN keys to scroll to Sys Config; Changing Freecooling Type press ENTER key. The comparative enthalpy free cooling setting can be 4. Press UP or DOWN keys to scroll to Run Test (A10) changed to dry bulb free cooling using the TEC-EYE screen.
ALARMS Alarm Adjustment FIGURE 2.6 Adjusting Mixed Air Alarm Values Acknowledging/Clearing Alarms Alarm conditions activate a red LED indicator that backlights the ALARM function key. As an option, an alarm condition may also be enunciated by an audible alarm signal. An alarm is acknowledged by pressing the ALARM key.
Freezestat Upon receiving the alarm, the wall unit will remove the “Y” call from the CCM, resetting the status of the When the coil temperature is below 30°F, the unit CCM. The alarm will stay present on the wall unit until will generate a Freeze alarm on the TEC-EYE and a manually cleared.
CONTROL OPERATION On/Off Control FIGURE 2.8 LC6000 Status Screen Showing Control Values The wall unit can be turned on and off with the TEC- . When the unit is set to ON, the system will heat and cool the space either in standalone mode or when connected to the LC.
To adjust these parameters: If the control value is below 56°F (Setpoint + Stage 3 Diff On), the unit will enable electric heat stage 3. 1. Press MENU key to go to the Main Menu screen. To adjust these parameters: 2.
Freecooling FIGURE 2.13 Economizer A4 Screen Economizer Enable The model number is used to determine if an economizer is installed. If an economizer is not installed, this feature will be disabled and sensors will be turned off that are not installed. The economizer will be enabled for cooling operation if the following conditions are true: (screens available through Sys Config in Main Menu)
3. The outdoor air dewpoint is less than 60°F (OA Economizer Note Dew Pt Set on display). See Figure 2.14. The economizer and mechanical cooling can operate 4. LC6000 is not currently in Dehum Mode. simultaneously because the economizer uses the mixed air temperature sensor.
FIGURE 2.16 Wall-Mount Unit Control Board 24VAC GND + Communication Wire 24VAC Hot - Communication Wire Smoke Dirty Filter Switch Comp. Alarm Relay 24VAC + Low Pressure Switch Y TO Compressor CCM Damper Blade Switch Damper Blade Switch Digital Ground Mixed Air Temp Sensor Outdoor Air Temp Sensor 24VAC +...
TOPPING OFF SYSTEM CHARGE of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with If a leak has occurred in the system, Bard this refrigerant charge quantity. Manufacturing recommends reclaiming, evacuating (see criteria above) and charging to the nameplate The pressure table found on page 34 shows nominal charge.
TABLE 2.1 Cooling Pressures Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side W18A/L*P 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side W24A/L*P 80/67 High Side Low Side...
COMPONENTRY The direction of rotation of the compressor may be WARNING changed by reversing any two line connections to the unit. PHASE MONITOR Electrical shock hazard. Used only on 3-phase equipment, the phase monitor is a Disconnect VAC power supply before compressor protection device that will prohibit operation servicing.
OUTDOOR FAN MOTOR routine operation of the unit. The compressor control module (CCM) also monitors the high pressure switch, Due to design considerations of the condenser section and will allow one automatic retry (after soft lockout of the wall-mount unit, placement/clearance of the delay) before disabling the compressor in a hard lockout motor/fan blade is critical to heat dispersal.
MAINTENANCE AND TROUBLESHOOTING STANDARD MAINTENANCE 4. Manually spin fan and blower motors to ensure they turn freely. All motors are permanently PROCEDURES lubricated, so no oil is necessary. 5. Inspect free cooling damper actuator and linkage. WARNING 6. Install new air filter; check for additional filter grilles internal to the structure.
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In the event that a problem is encountered with a wall-mount unit, the TEC-EYE hand-held tool may be used to diagnose the cause. If the problem can’t be resolved using these guidelines, contact the BARD Technical Service Department at 419.636.0439 for assistance.
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TROUBLESHOOTING MULTI-TEC WALL-MOUNT UNIT ALARMS (CONT.) Device Signal Description Possible Cause Component to Check Recommended Action Actions Check the mixed air The alarm is activated The alarm is activated temperature sensor Mixed Air if the sensor is faulty, a if the sensor is faulty, a Replace the supply wiring.
WALL-MOUNT UNIT ARCHITECTURE CAUTION: This Bard Free Cooling Unit System has been pre-programmed with what is widely considered to be the best settings for efficiency and operation. Any changes to internal programming through the LC6000 controller or the TEC-EYE not covered within this manual may cause the systems to operate improperly, cause internal damage to the HVAC units, cause the shelter to overheat or other very serious consequences.
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Screen Menu Item Range Default Value Description Freecool ST 0-59 Number of starts in last hour Cooling 1 Run 0-59 Number of minutes in last hour Cooling 1 ST 0-59 Number of starts in last hour Cooling 2 Run 0-59 Number of minutes in last hour Cooling 2 ST 0-59...
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WALL-MOUNT UNIT ARCHITECTURE (CONT.) Screen Menu Item Range Default Value Description Current Heat 52-75°F 60°F Current heating setpoint Press MENU Key two (2) times Insert Password 0000-9999 Password entry for settings access MAIN MENU SYS CONFIG Menu item Unit Setup Heading Address of wall unit used to Controller Address...
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Screen Menu Item Range Default Value Description On Diff -999.9 to 999.9 5.0°F Differential used by outdoor setpoint OA Humid Set 0-100% Setpoint to limit economizer operation Press DOWN Key Economizer Setpoint used to limit economizer OA Dew Pt Set -999.9 to 999.9 55.0°F operation...
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WALL-MOUNT UNIT ARCHITECTURE (CONT.) Screen Menu Item Range Default Value Description 0-32767 45 sec Delay for alarm Press DOWN Key Run Test Damper Test Volts 0-10 volts Damper position command for run test Time that damper will open for and close Damper Time 0-999 sec Heat/Cool Time...
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Screen Menu Item Range Default Value Description Channel 4 Low Pressure Descriptive text NO/NC Changes direction of input On/Off Enable/disable input On/Off Shows current value of input Channel 6 Damper Descriptive text NO/NC Changes direction of input On/Off Enable/disable input On/Off Shows current value of input Press DOWN Key...
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WALL-MOUNT UNIT ARCHITECTURE (CONT.) Screen Menu Item Range Default Value Description Press DOWN Key Freeze Sensor Heading Channel 7 Descriptive text -999.9 to 999.9 -0.1 Raw value of input Enable On/Off Used to enable/disable the sensor Used to increase or decrease the filter Filter Intensity 0-10 for input...
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Screen Menu Item Range Default Value Description Press DOWN Key Language English, Italiano, Deutsch, Press ENTER to change or BACK to Language English Francais, confirm Espanol Press MENU Key Press DOWN Key to SETTINGS Press ENTER Key Press DOWN Key to Initialization Initialization Alarm Initialization Delete Alarm Logs?
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