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INSTALLATION
INSTRUCTIONS
QTEC SERIES
PACKAGED
AIR CONDITIONER
Q24A1D
Q36A1D
Q48A1D
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914 . . . Moving ahead, just as planned.
Models:
Q30A1D
Q42A1D
Q60A1D
Manual:
Supersedes:
File:
Date:
2100-523
NEW
Vol II Tab 14
08-20-09
Manual
2100-523
Page
1 of 41
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Table of Contents
Troubleshooting
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Summary of Contents for Bard QTEC Q24A1D Series
- Page 1 PACKAGED AIR CONDITIONER INSTALLATION INSTRUCTIONS Models: Q24A1D Q30A1D Q36A1D Q42A1D Q48A1D Q60A1D Bard Manufacturing Company, Inc. Manual: 2100-523 Supersedes: Bryan, Ohio 43506 File: Vol II Tab 14 Since 1914 . . . Moving ahead, just as planned. Date: 08-20-09 Manual...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications tart Up – R-410A Refrigerant For more information, contact these publishers ... 3 General ................27 Topping off System Charge ..........27 General Information Saftety Practices ............27 Model Nomenclature .......... 4 Description of Standard Equipment ....... 28 Shipping Damage ............ -
Page 3: Getting Other Information And Publications
GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these at THESE PUBLISHERS: your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. -
Page 4: Qt Ec Model Nomenclature
Series General Information MODEL NOMENCLATURE MODEL COIL OPTIONS FILTER OPTIONS REVISION Q - QT 0Z - 0KW X - Standard X - 1-Inch Fiberglass 05 - 5KW 1 - Coated Evap. Coil (Standard) 06 - 6KW 2 - Coated Cond. Coil F - 2-Inch Fiberglass CAPACITY | CONDITIONER... -
Page 5: Table 1 Factory Built-In Electric Heat Table
Manual 2100-523 Page 5 of 41... -
Page 6: Table 2 Electrical Specifications
TABLE 2 ELECTRICAL SPECIFICATIONS - DEHUMIDIFICATION t i u t i u i n i i n i t i u s t l t i u y t i . t k y t i . t k . r k s t i . -
Page 7: Figure 1 Unit Dimensions
Manual 2100-523 Page 7 of 41... -
Page 8: Shipping Damage
SHIPPING DAMAGE FIGURE 2 AIR SEAL UNDER QT UNIT Upon receipt of equipment, the carton should be checked for external signs of shipping damage. The skid must remain attached to the unit until the unit is ready for installation. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent. -
Page 9: Handling Unit After Removal From Skid
HANDLING UNIT AFTER REMOVAL The blade of the appliance cart should be slid under the wheels of the unit. The strap of the appliance cart FROM SKID should be placed around the unit and strapped tightly. Help will be required to tip the unit back onto the cart. WARNING The unit can be leaned far enough back to be rolled through the door. -
Page 10: Figure 5 Installation With Free Blow Plenum
FIGURE 5 INSTALLATION WITH FREE BLOW PLENUM FIGURE 6 DUCTED APPLICATION Manual 2100-523 Page 10 of 41... -
Page 11: Duct Work
DUCT WORK When used with a ducted supply, a QCX Cabinet Extension can be used to conceal the duct work above All duct work must be properly sized for the design the unit to the ceiling. This extends 20" above the unit airflow requirement of the equipment. -
Page 12: Fresh Air Intake
OPTIONAL REAR DRAIN KITS This fresh air assembly is located in the rear of the unit Optional Rear Drain Kit, Bard Model QCDS48A, is also and to gain access to make these adjustments remove available for these products. The optional rear drain kit the air filter service door. -
Page 13: Figure 9 Optional Side Drain
FIGURE 9 OPTIONAL SIDE DRAIN (SIDE VIEW) INSTALLATION UNIT FIGURE 11 FIGURE 10 REAR DRAIN (TOP VIEW) STANDARD REAR DRAIN DRAIN LINE WALL (MAXIMUM 10" FOR REAR DRAIN) SLEEVE COUPLINGS NOT SHOWN, BUT RECOMMENDED FOR EASE OF REMOVABILITY FOR SERVICE. WALL BRACKET WATER... -
Page 14: Figure 12A Optional Rear Drain Kit
Manual 2100-523 Page 14 of 41... -
Page 15: Figure 12B Optional Rear Drain Kit
FIGURE 12B PLUG INSTALLED IN SIDE Q/Tec DRAIN REAR DRAIN CONNECTION IN Q/Tec PRODUCT IMPORTANT ! 1/2" SLIP X 1/2" SLIP X 3/4" NPT TEE SUPPLIED WITH DRAIN BOX KIT 3/4" PLASTIC PIPE NIPPLE (TIGHTEN THREADS SO TEE IS SUPPLIED WITH DRAIN BOX KIT HORIZONTAL TO FLOOR) (APPLY TEFLON TAPE TO THREADS) -
Page 16: Figure 12C Optional Rear Drain Kit
FIGURE 12C REMOVE KNOCK-OUT FOR INDOOR DRAIN HOSE CONNECTOR (If Used) MIS-2471 Manual 2100-523 Page 16 of 41... -
Page 17: Figure 12D Optional Rear Drain Kit
FIGURE 12D DRAIN HOSE FROM INDOOR DRAIN 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 BUT AT A SLIGHT COOLING PERFORMANCE REDUCTION OF 2-3% ) MIS-2472... -
Page 18: Figure 13A Unit Mounting
FIGURE 13A UNIT MOUNTING SIDE TRIM (2 PCS.) ENLARGED VIEW OF MOUNTING BRACKET SHOWING SLEEVE TO CABINET ATTACHMENT SIDE TRIM (2 PCS.) MOUNTING BRACKET WALL #8 SCREW SLEEVE PROVIDED (LIGHT COLOR) MOUNTING BRACKET CABINET SIDE PANEL #10 HEX BOTTOM TRIM HEAD SCREW BOTTOM TRIM PROVIDED... -
Page 19: Installation Instructions
INSTALLATION INSTRUCTIONS alignment to the mounting brackets. This unit MOUNTING THE UNIT must be level from side to side. If adjustments When installing a QT unit near an interior wall on the are necessary, shim up under the rollers with left side, a minimum of 8 inches is required;... -
Page 20: Wiring - Main Power
WIRE ENTRANCE with humidistat. The subbase of the thermostat is factory wired to the front panel of the unit. See Figure ELECTRIC 18 for wiring diagram. Compatible for use with Bard HEATERS CS2000A* Controller and Energy Recovery Ventilator. REMOTE THERMOSTAT... -
Page 21: Low Voltage Connections
LOW VOLTAGE CONNECTIONS LOW VOLTAGE CONNECTIONS These units use a grounded 24 volt AC low voltage FOR DDC CONTROL circuit. The “R” terminal is the hot terminal and the “C” Fan Only Energize G terminal is grounded. Cooling Mode Energize Y1, G “G”... -
Page 22: Figure 16 Thermostat Plug Terminals
TABLE 4 WALL THERMOSTATS ; l o ; l o FIGURE 16 MIS-1285 Manual 2100-523 Page 22 of 41... -
Page 23: Figure 17 Thermostat Wiring Diagram "X" Option
FIGURE 17 REMOTE THERMOSTAT WIRING DIAGRAM “X” THERMOSTAT OPTION 8403-047 Low Voltage H200 Plug #4 Term. Block Humidistat Blue Red/White Yellow D/YO Brown/White Orange Yellow Blue W1/E Brown Red/White Black/White 8403-060 Thermostat Black/White 8403-058 TH5220D1151 Thermostat 4102-072 Factory Installed Jumper. 2 Remove for 2 stage electronic heat on 15 KW models. -
Page 24: Figure 18 Thermostat Wiring Diagram "G" Option
FIGURE 18 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “G” THERMOSTAT OPTION Plug #2 Temp. and Humidity Brown/White Controller PART #8403-060 Purple/White D/YO Orange Yellow Blue W1/E Brown Red/White Black/White Pink 4102-073 NOTE: On option X or G the CS2000A* (or other field provided means to control ventilation) must be used if any of the motorized ventilation options are installed. -
Page 25: Figure 19 Thermostat Wiring Diagram "E" Option
FIGURE 19 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “E” THERMOSTAT OPTION Plug #2 Temp. and Humidity Controller PART #8403-060 Purple/White D/YO Brown/White Orange Yellow Blue W1/E Brown Red/White Black/White 4102-074 Manual 2100-523 Page 25 of 41... -
Page 26: Figure 20 Thermostat Wiring Diagram " I " Option
FIGURE 20 UNIT MOUNTED THERMOSTAT WIRING DIAGRAM “ ” THERMOSTAT OPTION CO2 Controller Part #8403-056 24VAC Black Yellow Analog Brown Plug #2 Orange Green Purple/White D/Y0 Brown/White Orange Temp. and Humidity Yellow Controller Part #8403-060 Blue W1/E Brown Red/White Black/White 4102-075 Manual 2100-523 Page... -
Page 27: General
7. Never fill cylinders over 80% of total capacity. TOPPING OFF SYSTEM CHARGE 8. Store cylinders in a cool area, out of direct If a leak has occurred in the system, Bard Manufacturing sunlight. recommends reclaiming, evacuating (see criteria above), 9. -
Page 28: Description Of Standard Equipment
START UP DESCRIPTION OF STANDARD EQUIPMENT CAUTION High/Low Pressure Switch Provides refrigerant circuit high pressure and loss of Do not plug in or unplug blower motor charge protection. Includes lockout circuit that is connectors while the power is on. Failure to resettable from room thermostat. -
Page 29: Compressor Control Module
All three phase scroll compressors used in the QT Alarm Relay Output series are wired identically internally. As a result, once Alarm terminal is output connection for applications the correct phasing is determined for a specific system where alarm relay is employed. This terminal is or installation, connecting properly phased power leads powered whenever compressor is locked out due to HPC to the same Fusite terminal should maintain proper... -
Page 30: Mist Eliminator Service
6. Some service requires the need to remove the unit It is recommended that the mist eliminator be inspected from the wall including replacement of the indoor annually and serviced as required. The mist eliminator coil and/or the outdoor coil. Also servicing the can be inspected from the outside of the building by outdoor fan motor or fan blade will require looking through the outdoor grille. - Page 31 The mist eliminator can be seen through the opening in 3. Underneath the heat recovery cassette there is a the back of the unit. The mist eliminator must be raised power connector for the lower blower assembly. To up and the bottom can be pulled toward the front of the disconnect this plug, the tabs on both sides of the unit and removed.
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Page 32: Figure 21 Fresh Air Damper Removal
FIGURE 21 FRESH AIR DAMPER REMOVAL MOUNTING SCREW Manual 2100-523 Page 32 of 41... -
Page 33: Figure 22 Qerv Removal
FIGURE 22 QERV REMOVAL POWER CONNECTORS MOUNTING SCREWS LOWER BLOWER ASSEMBLY POWER CONNECTOR FRONT FILL Manual 2100-523 Page 33 of 41... -
Page 34: Sequence Of Operation
OPTIONAL CLIMATE CONTROLS SEQUENCE OF OPERATION SEQUENCE OF OPERATION Cooling – Circuit R-Y makes the thermostat pull in the compressor contactor starting the compressor and The Climate Control Option G is an electronic, non- outdoor motor. The G (indoor motor) circuit is programmable manual or auto changeover thermostat. -
Page 35: Figure 24 Air Conditioning Mode Circuit Diagram
FIGURE 24 AIR CONDITIONING MODE CIRCUIT DIAGRAM Manual 2100-523 Page 35 of 41... -
Page 36: Figure 25 Dehumidification Mode Circuit Diagram
FIGURE 25 DEHUMIDIFICATION MODE CIRCUIT DIAGRAM Manual 2100-523 Page 36 of 41... -
Page 37: Troubleshooting
TROUBLESHOOTING TABLE 5A TROUBLESHOOTING t i u , t i s t i n i l a t l . l o c t i c t i c t i c t i a t l . l o i t c l i o i t c... -
Page 38: Troubleshooting Ge Ecm™ Blower Motors
TROUBLESHOOTING GE ECM MOTORS ™ CAUTION: Symptom Cause/Procedure • Noisy blower or cabinet • Check for loose blower housing, panels, etc. Disconnect power from unit before removing or replacing • High static creating high blower speed? connectors, or servicing motor. To avoid electric shock from - Check for air whistling through seams in the motor’s capacitors, disconnect power and wait at least 5 ducts, cabinets or panels... -
Page 39: Figure 26 Control Disassembly
TROUBLESHOOTING GE ECM MOTORS CONT’D. ™ 8b. IF REPLACING AN ECM 2.3 CONTROL WITH AN ECM Replacing ECM Control Module 2.3 CONTROL, the plastic tab and shorter through-bolts are not needed. To replace the control module for the GE variable-speed indoor blower The control can be oriented in two positions 180°... -
Page 40: Figure 29 Fan Blade Setting
FAN BLADE SETTING DIMENSIONS REFRIGERANT CHARGE Any service work requiring removal or adjustment in The correct system R-410A charge is shown on the unit rating plate. Optimum unit cooling performance will the fan and/or motor area will require that the dimensions in Table 6 be checked and blade adjusted in occur with a refrigerant charge resulting in a subcooling or out of the motor shaft accordingly. -
Page 41: Pressure Chart
TABLE 9 COOLING PRESSURE (ALL TEMPERATURES IN DEGREES F) ° 5 ° 0 ° 5 ° 0 ° 5 ° 0 ° 5 ° 0 ° 5 l a t n i l n i l l a t n i l n i l l a t n i l...
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