XII. Relief Devices, XIII. Control Circuit

								BOTH CIRCUITS
				ALL OUTDOOR FANS MUST BE OPERATING
(DEG F)	140
	140


VALVE	120
			ADD		CHARGE		IF ABOVE CURVE
LIQUIDAT	100
LIQUIDAT
TEMPERATURELIQUID
	80




	60								REDUCE CHARGE IF BELOW CURVE


	40

		100				150	200			250	300	350	400
	50	100				150	200			250	300	350	400

LIQUID PRESSURE AT LIQUID VALVE (PSIG)

Fig. 30 Ð Cooling Charging Chart Ð All Units

Crankcase Heater

Only the 559F300 unit is equipped with a 70-watt crankcase heater to prevent absorption of liquid refrigerant by oil in the crankcase when the compressor is idle. The crankcase heater is energized whenever there is a main power to the unit and the compressor is not energized.

IMPORTANT: After prolonged shutdown or servicing, ener- gize the crankcase heaters for 24 hours before starting the compressors.

Compressor Lockout

If any of the safeties (high-pressure, low-pressure, freeze pro- tection thermostat, compressor internal thermostat) trip, or if there is loss of power to the compressors, the CLO (com- pressor lockout) will lock the compressors off. To reset, manu- ally move the thermostat setting.

B. Evaporator Fan Motor Protection

A manual reset, calibrated trip, magnetic circuit breaker pro- tects against overcurrent. Do not bypass connections or in- crease the size of the breaker to correct trouble. Determine the cause and correct it before resetting the breaker.

C. Condenser-Fan Motor Protection

Each condenser-fan motor is internally protected against overtemperature.

D. High- and Low-Pressure Switches

If either switch trips, or if the compressor overtemperature switch activates, that refrigerant circuit will be automati- cally locked out by the CLO. To reset, manually move the ther- mostat setting.

E. Freeze Protection Thermostat

An FPT is located on the top and bottom of the evaporator coil. It detects frost build-up and turns off the compressor, al- lowing the coil to clear. Once the frost has melted, the com- pressor can be reenergized by resetting the compressor lockout.

XII. RELIEF DEVICES

All units have relief devices to protect against damage from excessive pressures (e.g., ®re). These devices protect the high and low side.

XIII. CONTROL CIRCUIT, 24-V

This control circuit is protected against overcurrent by a 3.2-amp circuit breaker. Breaker can be reset. If it trips, de- termine cause of trouble before resetting.

XIV. REPLACEMENT PARTS

A complete list of replacement parts may be obtained from any Carrier distributor upon request.

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559F specifications

The Bryant 559F is a standout heating and cooling solution, designed with both efficiency and performance in mind. This model is a part of Bryant's legacy of reliability, combining innovative technology with user-friendly features to ensure a comfortable indoor environment throughout the year.

One of the most notable features of the Bryant 559F is its high efficiency rating. With a Seasonal Energy Efficiency Ratio (SEER) that exceeds industry standards, this model is engineered to significantly reduce energy consumption, translating to lower utility bills and a smaller carbon footprint. The system is designed to perform efficiently even in extreme temperatures, making it a reliable choice for households in diverse climates.

Incorporating advanced inverter technology, the Bryant 559F automatically adjusts its output to meet the precise cooling and heating needs of the space, providing consistent comfort while minimizing energy usage. This adaptive capability reduces energy waste, resulting in more efficient operation compared to traditional systems that constantly cycle on and off.

The Bryant 559F also features an integrated Wi-Fi capability, allowing users to control their heating and cooling system remotely via a smartphone app. This modern convenience empowers homeowners to create schedules, adjust settings, and monitor performance from virtually anywhere, enhancing both comfort and energy management.

Another characteristic of the Bryant 559F is its quiet operation. Thanks to sound-dampening features, the system is designed to operate at lower noise levels, providing a peaceful indoor environment. This makes it particularly suitable for residential applications where noise can be a concern, such as bedrooms and home offices.

Additionally, the Bryant 559F is equipped with advanced air filtration and purification systems that help improve indoor air quality. This is particularly beneficial for allergy sufferers or those concerned about pollutants in the air. The system can remove dust, pollen, and other particulates, creating a healthier living space.

Furthermore, the Bryant 559F model is backed by a robust warranty, showcasing Bryant's commitment to quality and customer satisfaction. Overall, the Bryant 559F combines innovative technology, energy efficiency, and user-friendly features to deliver a reliable heating and cooling solution that meets the needs of modern households. Its blend of performance, comfort, and convenience makes it an excellent choice for anyone looking to enhance their indoor climate control solutions.