Bard QH422, QH243 Handling Unit After Removal from Skid, General, Minimum Installation Height

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HANDLING UNIT AFTER REMOVAL FROM SKID

WARNING

Exercise extreme caution when pushing the unit on the rollers. Handle and push from the lower 1/3 of the unit. Insure that debris is not on the floor where the unit is to be moved on the rollers. Failure to do so could result in the unit tipping over and causing bodily injury and/ or damage to the unit.

The unit will have to be turned sideways and removed from the skid to fit through a 36" doorway. If the door height allows, the unit can be slid sideways through the door.

If the unit can not be slid through the door, then the unit will have to be put on a cart and tipped down to roll through the door. It is recommended that an appliance cart by used with a strap to hold the unit on the cart. The wheels of the unit must be locked. If the wheels were allowed to roll, the unit could roll off the cart. The unit should always be carted from the left side. This is the side where the compressor is located. See Figure 4.

FIGURE 4

UNIT ON APPLIANCE CART

QTEC UNIT

(Right Side)

STRAP

APPLIANCE

CART

COMPRESSOR

The blade of the appliance cart should be slid under the wheels of the unit. The strap of the appliance cart should be placed around the unit and strapped tightly. Help will be required to tip the unit back onto the cart. The unit can be leaned far enough back to be rolled through the door. Be careful when setting the unit back up to keep from damaging the unit.

GENERAL

The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

The unit is designed for use with or without duct work. For use without duct work, Plenum Box QPB42 is recommended.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate 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 attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 3 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

MINIMUM INSTALLATION HEIGHT

The minimum installation height of the unit with a Free Blow Plenum is 8 ft. 6 in. This provides enough clearance for the plenum to be removed. See Figure 5.

The minimum installation height for ducted applications is 8 ft. 4½ in. This provides enough clearance to install the duct work. See Figure 6.

Manual

2100-420H

Page

9 of 34

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Contents Instructions Models QH243 QH302 QH362 QH422 QH482 QH602 Qtec Series Packaged Heat Pump InstallationContents For More INFORMATION, Contact These Publishers Getting Other Information and PublicationsFactory BUILT-IN Electric Heat Table Qtec Model NomenclatureElectrical Specifications on page 6 a Electrical SpecificationsModel Unit Dimensions Unit Removal from Skid Shipping DamageAIR Seal Under Qtec Unit Removal of Unit from SkidHandling Unit After Removal from Skid Minimum Installation HeightGeneral Unit on Appliance CartInstallation with Free Blow Plenum Ducted Application Filters Duct WorkSupply Duct Connections Filter LocationFresh AIR Intake Optional Side Drain Side View InstallationCondensate Drain Standard Rear DrainService Light Rear Drain TOP ViewUnit Mounting Installation Instructions Mounting the UnitRemoving Locking Screws from Wheels Wiring LOW Voltage Wiring Wiring Main PowerComponent Location Operating Voltage RangeLOW Voltage Connections for DDC Control LOW Voltage ConnectionsWall Thermostats Thermostat Predominant FeaturesRemote Thermostat Wiring Diagram Thermostat Option Unit Mounted Thermostat Wiring Diagram Thermostat Option Unit Mounted Thermostat Wiring Diagram Thermostat Option Start UP Mist Eliminator Service Service HintsBarometric Fresh AIR Damper Standard Vent OptionsFresh AIR Damper Removal Qerv Removal Sequence of Operation Pressure Service PortsOptional Climate Controls Sequence of Operation Heat Pump Control Board HPCDefrost Cycle LOW Pressure Control Bypass TimerTroubleshooting TroubleshootingSolid State Heat Pump Control Troubleshooting Procedure Checking Temperature SensorTemperature F VS Resistance R of Temperature Sensor Don’t Troubleshooting GE ECM MotorsReplacing ECM Control Module Troubleshooting GE ECM Motors CONT’DFAN Blade Setting FAN Blade Dimensions FAN Blade Setting Dimensions Refrigerant ChargeSuper Heat AT Compressor Indoor Blower PerformanceModel Temp Pressure Cooling Pressure ALL Temperatures in Degrees FReturn AIR Temperature Entering Outdoor Coil Model Pressure Heating Pressure ALL Temperatures in Degrees F

QH482, QH243, QH302, QH422, QH602 specifications

Bard has established itself as a leader in the heating, ventilation, and air conditioning (HVAC) industry with its innovative line of products, including the Bard QH series. Models such as QH362, QH602, QH422, QH302, and QH243 showcase the perfect blend of performance, efficiency, and advanced technology.

The Bard QH362 is built for both affordability and efficiency, making it ideal for smaller commercial spaces. This model offers a cooling capacity of 36,000 BTUs, providing optimal comfort with minimal energy consumption. Its robust design ensures long-lasting performance, while the air-cooled condenser enhances reliability in various climates.

The QH602 model takes it a step further with enhanced cooling capabilities, boasting a 60,000 BTU rating. This unit is particularly well-suited for larger commercial applications. Its advanced heat pump technology allows for efficient heating and cooling, ensuring indoor comfort year-round. The QH602 features a user-friendly control system that optimizes energy use and simplifies operation.

Next up, the QH422 model is designed for mid-sized commercial environments, offering 42,000 BTUs of cooling power. This model is distinguished by its energy-efficient design, significantly reducing operational costs while maintaining high-performance levels. The QH422 includes a smart thermostat that allows users to monitor and adjust settings remotely, further enhancing energy management.

The QH302 model is perfect for businesses looking for a balance between power and efficiency. With a capacity of 30,000 BTUs, this unit effectively meets the needs of medium-sized spaces. Its compact design allows for easy installation and maintenance, making it a favorite among commercial property managers.

Lastly, the QH243 model rounds out the series with a 24,000 BTU capacity, ideal for smaller commercial applications. This model showcases Bard's commitment to energy efficiency, equipped with environmentally friendly refrigerants and advanced insulation materials that minimize energy loss.

These Bard models feature innovative technologies such as variable-speed fans, which ensure consistent airflow regardless of outdoor conditions. Additionally, noise-reduction technologies provide a quieter operation, creating a more pleasant indoor environment.

In summary, the Bard QH series, including the QH362, QH602, QH422, QH302, and QH243, offers a comprehensive range of HVAC solutions tailored to diverse commercial needs. With their efficient designs, advanced technology, and focus on reliability, these models set the standard for modern heating and cooling equipment.
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