Normal Maintenance, Motors | Johnson Controls BQ 048, BQ 060

364985-XIM-B-0508

MAINTENANCE

NORMAL MAINTENANCE

Prior to any of the following maintenance pro- cedures, shut off all electric power to the unit to prevent personal injury.

FILTERS

Inspect once a month. Replace disposable or clean permanent type as necessary. DO NOT replace per- manent type with disposable. The dimensional size of the replacement filter must be the same as the replaced filter.

MOTORS

Outdoor fan motors are permanently lubricated and require no maintenance.

Indoor Blower Motor and Drive - The indoor blower motor features ball bearings that do not require periodic lubrication. Periodic lubrication of the motor and bearings can extend the life of components but is optional.

Damage can occur if the bearings are overlu- bricated. Use grease sparingly.

Perform all maintenance operations on the blower motor with electric power disconnected from the unit. Do not attempt to lubricate bear- ings with the unit in operation.

On an annual basis, check the motor for accumulations of dust, etc. that may block the cooling slots in the motor shell. Check for loose, damaged or misaligned drive components. Check that all mounting bolts are tight. Replace defective parts as required.

If desired, every three years remove both pipe plugs at each end shell and clean out any hardened grease or foreign matter. Replace one plug on each end with a clean grease fitting. Using a low pressure grease gun, pump grease (Chevron SRI-2 or equivalent) into the bearing cavity until new grease shows at the open port. Do not over lubricate. Run the motor for ten minutes until excess grease is purged from the cavity. Replace the plugs.

15 ton units are supplied with blower shaft bearings that do not require maintenance but may be lubricated if desired. Every three years, using a low pressure grease gun, pump grease into the bearing grease fit- ting until grease just begins to show at the seals. Do not over lubricate. Use any lithium base grease recom- mended for ball bearing service.

OUTDOOR COIL

Dirt should not be allowed to accumulate on the out- door coil surface or other parts in the air circuit. Clean- ing should be as often as necessary to keep coil clean. Use a brush, vacuum cleaner attachment, or other suit- able means. If water is used to clean coil, be sure elec- tric power to the unit is shut off prior to cleaning.

NOTE: Exercise care when cleaning the coil so that the coil fins are not damaged.

38	Johnson Controls Unitary Products

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.

Johnson Controls BQ 048, BQ 060, BQ 036 Normal Maintenance, Motors, Outdoor Coil

Models: BQ 048 BQ 036 BQ 060