Bard Q24A2DA Installation Instructions Manual Download Page 18 | Manualshive

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Manual 2100-602A

Page

18 of 41

Washer

Sleeve

Stud

MIS-2689

Nut

Lower Control Panel

Condenser

Door (Removed)

Return Grille

FIGURE 13A

UNIT MOUNTING

BOTTOM

TRIM PIECE

BOTTOM TRIM

EXTENSION

MOUNTING

BRACKET

SIDE TRIM

(2 PCS.)

SIDE TRIM

(2 PCS.)

CABINET

SIDE PANEL

ENLARGED VIEW OF MOUNTING

BRACKET SHOWING SLEEVE TO

CABINET ATTACHMENT

MOUNTING BRACKET

#8 SCREW

PROVIDED

(LIGHT COLOR)

WALL

SLEEVE

#10 HEX

HEAD SCREW

PROVIDED

FIGURE 13B

UNIT MOUNTING

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Summary of Contents for Q24A2DA

Page 1: ...Inc Bryan Ohio 43506 www bardhvac com Manual No 2100 602A Supersedes 2100 602 Date 7 25 17 Q TECTM SERIES PACKAGED AIR CONDITIONER Models Q24A2DA Q24A2DB Q24A2DC Q30A2DA Q30A2DB Q30A2DC Q36A2DA Q36A2...

Page 2: ...ic Heat Table 5 Table 2 Electrical Specifications 6 Table 3 Operating Voltage Range 20 Table 4 Wall Thermostats 22 Table 5A Troubleshooting 37 Table 5B Dehumidification Relay Logic Board 37 Table 6 Fa...

Page 3: ...ummer Manual N Air Conditioning Low Pressure Low Velocity ACCA Manual D or Duct System Design Manual Q Winter and Summer Air Conditioning FOR MORE INFORMATION CONTACT THESE PUBLISHERS ACCA Air Conditi...

Page 4: ...l and reheat if applicable VENTILATION OPTIONS X Barometric Fresh Air Damper Standard B Blank off Plate V Commercial Ventilator Motorized w Exhaust Spring Return P Commercial Ventilator Motorized w Ex...

Page 5: ...08V 1 240V 1 208V 1 480V 3 240V 1 208V 1 240V 1 208V 1 480V 3 KW BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH 5 0 16 380 12 290 16 380 12 290 6 0 20 500 15...

Page 6: ...60 25 6 10 10 10 Q42A2DB0Z B06 B09 B15 230 208 3 1 1 1 1 26 26 35 53 35 35 35 60 8 8 8 6 10 10 10 10 Q42A2DC0Z C06 C09 C15 460 3 1 1 1 1 13 14 18 27 15 15 20 30 14 14 12 10 14 14 12 10 Q48A2DA0Z A05 A...

Page 7: ...Manual 2100 602A Page 7 of 41 FIGURE 1 UNIT DIMENSIONS...

Page 8: ...emoved to provide a place to hold the unit The unit can be slid forward on the skid until the front wheels hang over the edge of the skid See Figure 3 B The unit can be tipped forward and slid down th...

Page 9: ...eparate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation Note particularly Start Procedure and any tags and or labels attache...

Page 10: ...Manual 2100 602A Page 10 of 41 FIGURE 6 DUCTED APPLICATION FIGURE 5 INSTALLATION WITH FREE BLOW PLENUM...

Page 11: ...justable louvers on the front discharge grille For hot water coil option a QPBHWxx F for free blow or QPBHWxx D for ducted airflow is used When used with a ducted supply a QCX Cabinet Extension can be...

Page 12: ...rom the wall When the side drain is used the plug must be removed and installed in the rear drain outlet The rear drain can be used with wall thickness of up to 10 inches where a water trap can be ins...

Page 13: ...REAR DRAIN TOP VIEW WALL MAXIMUM 10 FOR REAR DRAIN COUPLINGS NOT SHOWN BUT RECOMMENDED FOR EASE OF REMOVABILITY FOR SERVICE SLEEVE DRAIN LINE WALL BRACKET UNIT FIGURE 10 STANDARD REAR DRAIN FIGURE 9 O...

Page 14: ...Manual 2100 602A Page 14 of 41 MIS 2469 DRAIN BOX WALL SLEEVE OVERFLOW TUBE CAULK AROUND TUBE FIGURE 12A...

Page 15: ...PLASTIC PIPE NIPPLE HORIZONTAL TO FLOOR TIGHTEN THREADS SO TEE IS THREADS APPLY TEFLON TAPE TO REAR DRAIN CONNECTION IN Q Tec PRODUCT 1 2 SLIP X 1 2 SLIP X 3 4 NPT TEE SUPPLIED WITH DRAIN BOX KIT PLU...

Page 16: ...Manual 2100 602A Page 16 of 41 REMOVE KNOCK OUT FOR INDOOR DRAIN HOSE CONNECTOR MIS 2471 FIGURE 12C If Used...

Page 17: ...RAIN PAN MOVE HOSE FROM ATTACHMENT IN LOWER DRAIN PAN AND SLIDE ONTO DRAIN BOX BARB FITTING SECURING WITH SUPPLIED CLAMP IF OUTDOOR PAN IS BYPASSED WILL REDUCE RISK OF ALGAE GROWTH IN THE OUTDOOR PAN...

Page 18: ...le FIGURE 13A UNIT MOUNTING BOTTOM TRIM PIECE BOTTOM TRIM EXTENSION MOUNTING BRACKET SIDE TRIM 2 PCS SIDE TRIM 2 PCS CABINET SIDE PANEL ENLARGED VIEW OF MOUNTING BRACKET SHOWING SLEEVE TO CABINET ATTA...

Page 19: ...eck both sides of the unit as it is being rolled to keep it centered in the sleeve Also check the alignment to the mounting brackets This unit must be level from side to side If adjustments are necess...

Page 20: ...t Depending on the installed KW of electric heat there may be two field power circuits required If this is the case the unit serial plate will so indicate All models are suitable only for connection w...

Page 21: ...at or cool modes to maintain the temperature set on the thermostat The CO2 controller will energize the vent option and the ID blower when the room CO2 levels rise over set level Default CO2 set point...

Page 22: ...2 stage Cool 2 stage Heat Programmable Non Programmable Electronic HP or Conventional Auto or Manual changeover with Humidity and Occupancy Sensor BACnet CSB9E THO 3 stage Cool 3 stage Heat Programma...

Page 23: ...for 2 stage electronic heat on 15 KW models operation and for Humidity Control output D Yo to be active 4 3 Must be configured for Heat Cool and No Economizer for proper 5 R C 6 W1 E Y1 D YO A G 12 4...

Page 24: ...ED THERMOSTAT WIRING DIAGRAM E THERMOSTAT OPTION Red White Blue 9 D YO 10 Orange A 7 PART 8403 060 5 Black White G 3 Brown White 6 8 4102 074 11 R Y1 Plug 2 C 1 Yellow 4 2 12 Brown W1 E Temp and Humid...

Page 25: ...hite I Thermostat Option Orange Red White Blue Out 6 Temp and Humidity Part 8403 060 5 Black White G 3 11 8 4102 075 A R Y1 Plug 2 C W2 1 Yellow 12 Purple White Brown 7 A Brown White 2 4 CO Controller...

Page 26: ...WIRING DIAGRAM J OR K THERMOSTAT OPTION Y1 Orange A Blue 9 1 6 SC D W2 K CS9BE THOC 5 Black White G 3 Brown White 11 8 4102 077 4 R 10 Plug 2 C Red White Yellow 2 12 Purple White Brown 7 SC W1 E Temp...

Page 27: ...e leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system may be use...

Page 28: ...prevent compressor damage due to phase reversal The phase monitor in this unit is equipped with two LEDs If the Y signal is present at the phase monitor and phases are correct the green LED will light...

Page 29: ...lockout Regardless the state of the low pressure switch the contactor will reenergize after the delay on make time delay has expired If the low pressure switch remains open or opens again for longer t...

Page 30: ...pected from the outside of the building by looking through the outdoor grille The mist eliminator can be serviced from the outside by using a vacuum cleaner The outdoor grille must be removed Use the...

Page 31: ...te slide out of the QERV The mist eliminator can be seen through the opening in the back of the unit The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit and...

Page 32: ...Manual 2100 602A Page 32 of 41 FIGURE 21 FRESH AIR DAMPER REMOVAL MOUNTING SCREW...

Page 33: ...Manual 2100 602A Page 33 of 41 FIGURE 22 QERV REMOVAL MOUNTING SCREWS FRONT FILL LOWER BLOWER ASSEMBLY POWER CONNECTOR POWER CONNECTORS...

Page 34: ...valve located in the reheat coil return line It has a soft spring to hold the ball on the seat This will make the method of checking the ball freedom with a magnet difficult Refer to Figures 24 and 2...

Page 35: ...Manual 2100 602A Page 35 of 41 FIGURE 24 AIR CONDITIONING MODE CIRCUIT DIAGRAM...

Page 36: ...Manual 2100 602A Page 36 of 41 FIGURE 25 DEHUMIDIFICATION MODE CIRCUIT DIAGRAM...

Page 37: ...terminal and within 10 seconds power should appear between CC C Remove speed up jumper after 10 seconds Contactor defective Check for open or shorted coil winding Replace contactor Motor defective Ch...

Page 38: ...t s air noise cabinet duct or motor noise interview customer if necessary Air noise High static creating high blower speed Is airflow set properly Does removing filter cause blower to slow down Check...

Page 39: ...ion d Add a drip loop to the cables so that water cannot enter the motor by draining down the cables Refer to Figure 26 The installation is now complete Reapply the AC power to the HVAC equipment and...

Page 40: ...y ratings were determined by testing with this refrigerant charge quantity The following pressure tables show nominal pressures for the units Since many installation specific situations can affect the...

Page 41: ...25 300 38 500 24 600 37 000 24 000 35 400 23 300 33 900 22 500 32 300 21 800 Q42A2D 75 DB 62 WB Total Cooling Sensible Cooling 40 400 29 500 39 000 29 000 37 600 28 500 36 200 27 800 34 800 27 300 33...

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