Johnson Controls BQ 060, BQ 036, BQ 048 installation manual Typical Power Wiring

Page 9

364985-XIM-B-0508

TYPICAL POWER WIRING

REFER TO THE ELECTRICAL DATA

TABLES TO SIZE THE DISCONNECT

SWITCH, OVERCURRENT PROTEC-

TION AND WIRING.

TYPICAL CONTROL WIRING

COOLING / HEATING (24 VOLT THERMOSTAT)

THERMOSTAT1

TERMINALS

 

RH

UNIT TERMINAL

 

ADD

STRIP TB1

 

 

 

 

JUMPER

RC

R

 

 

Y

Y1

24 VOLT

 

 

Y2

TRANSFORMER

 

 

 

WW1

W2

GG

C

124 VOLT THERMOSTAT 2ET07701024. TO CONTROL THE ECONOMIZER ON THE SECOND STAGE COOLING OR TO HAVE AN ELECTRIC HEAT ACCESSORY WITH TWO STAGES OF HEAT, USE THERMOSTAT 2TH0471024.

COOLING / HEATING (ELECTRONIC THERMOSTAT)

COOLING / HEATING (ELECTRONIC THERMOSTAT)

MULTI STAGE

SINGLE STAGE

THERMOSTAT1

 

 

 

 

THERMOSTAT1

 

TERMINALS

 

UNIT TERMINAL

 

 

UNIT TERMINAL

 

 

 

TERMINALS

 

RC

 

STRIP TB1

24 VOLT

 

ADD

 

 

RH

STRIP TB1

RH

 

R

TRANSFORMER

 

 

JUMPER

 

 

RC

R

Y1

 

Y1

 

ADD

 

2

 

Y

Y1

 

Y2

Y2

 

JUMPER

 

 

W

W1

 

W1

 

W1

 

 

4

 

 

 

G

G

W2

3

W2

 

 

 

 

 

C

 

G

 

G

 

 

 

 

 

 

 

 

24 VOLT

 

B

 

C

 

 

 

 

 

 

 

 

TRANSFORMER

 

 

 

 

 

 

 

 

LED 1

 

X

 

 

LED 2

NOT

OCC

1ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).

 

 

USED 4

 

 

COM

 

 

 

TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT

ADD

A1

 

 

2TH04700224.

JUMPER

A2

 

 

 

T TO REMOTE SENSOR

T 2TH040702224 IF USED

1ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET04700224 (INCLUDES SUBBASE).

2 SECOND STAGE COOLING IS NOT REQUIRED ON UNITS LESS ECONOMIZER.

3SECOND STAGE HEATING IS ONLY REQUIRED ON UNITS WITH A TWO STAGE ELECTRIC HEATER OR 2 STAGE GAS HEAT.

4REMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTOR P6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAY OUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THE THERMOSTAT SWITCHES TO THE SET-BACK POSITION.

FIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRING

Johnson Controls Unitary Products

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Image 9
Contents Installation Table of Contents List of Tables List of FiguresGeneral Safety ConsiderationsInspection ReferenceTon Sunline Simplicity Model Number Nomenclature Product NomenclatureInstallation Safety Information InstallationLimitations Unit Application Data BQClearances Rigging and HandlingDuctwork Condensate DrainService Access CompressorsFilters Typical Power Wiring Control Wire Sizes Power and Control WiringOPTIONS/ACCESSORIES ThermostatElectric Heater CFM Limitations Minimum Position Adjustment Enthalpy Setpoint Adjustment BQ 6 Point Loads Weight Distribution BQ 4 Point Loads Weight DistributionPhysical Data Operating Weights LBSMCA Pwr Max Size Motors Fuse XIM-B-0508 Pwr Max MCA1 Voltage LIMITATIONS1 Electric Heat Correction FactorsUnit with Economizer Rainhood Minimum Clearances Unit Dimensions Rear ViewRPM BHP BHP RPM BHP Belt Drive RPM Selection Belt Drive Blower Motor and Drive DataStatic Resistances Drive Selection Factor Phasing Supply AIR BlowersChecking Supply AIR CFM Operation Sequence of Operations OverviewCooling Sequence of Operation Cooling Operation Errors Reset Safety ControlsCompressor Protection Flash CodesHeat Anticipator Setpoints Electric Heat Limit Control SettingSTART-UP Cooling TroubleshootingXIM-B-0508 Unit Control Board Flash Codes Unit Flash CodesNormal Maintenance MaintenanceMotors Outdoor CoilXIM-B-0508 Johnson Controls Unitary Products Johnson Controls Unitary Products York Drive Norman, OK

BQ 048, BQ 036, BQ 060 specifications

Johnson Controls has established itself as a leading player in the HVAC and building management industries, and its BQ series of chillers - including the BQ 060, BQ 036, and BQ 048 - reflects this commitment to innovation and efficiency. These models are designed to provide advanced cooling solutions suitable for a variety of commercial applications.

The BQ 060 is particularly notable for its high-performance capabilities. With a cooling capacity of 60 tons, it utilizes variable-speed compressors, allowing it to adjust its performance based on the cooling demand. This flexibility not only enhances energy efficiency but also reduces operational costs. The unit incorporates advanced microprocessor controls that facilitate seamless integration with building management systems, enabling real-time monitoring and adjustments.

Moving on to the BQ 036, this model is engineered for facilities that require a smaller footprint but still demand reliability and efficiency. With a cooling capacity of 36 tons, it features a compact design without compromising on performance. The BQ 036 also employs environmentally friendly refrigerants, aligning with Johnson Controls' commitment to sustainability. Enhanced insulation and sound-dampening technologies make it an ideal choice for noise-sensitive environments, ensuring comfort without sacrificing efficiency.

The BQ 048 lies in between the two, with a capacity of 48 tons, making it versatile for medium-sized commercial buildings. Its design incorporates a modular approach, allowing for easy scalability in future expansions. This model also features energy recovery options that can utilize excess heat to improve overall efficiency, further solidifying its role in sustainable building practices. Its user-friendly interface enhances operability, simplifying management for building operators.

All three models of the BQ series share key characteristics, such as robust construction to withstand diverse environmental conditions, and low maintenance requirements thanks to their durable components. They utilize advanced technologies for temperature control and energy efficiency, including an intelligent controller that automates more routine tasks. Together, the BQ 060, BQ 036, and BQ 048 offer comprehensive solutions that cater to the growing demands of energy efficiency, sustainability, and reliability in modern building operations. With these chillers, Johnson Controls continues to lead the way in shaping the future of HVAC solutions.