DISCHARGE STUB

Fig. 2 — Typical Stub Tube View

COOLER STUB

Fig. 3 — Stub Tube for Circuit A of Size 110

BALL VALVE

Fig. 4 — Typical View of 5/8 in. Swage Tube, 5/8 in. Clamp and Solenoid Valve Installed

.

IMPORTANT: The valve is direction specific and must have the arrow pointing toward the cooler. The solenoid valve will not properly seat if installed backwards.

6.Dehydrate and recharge each circuit.

7.Restore power to the unit.

NOTE: When piping is completed, leak test the assembly. Then evacuate, dehydrate, and recharge the circuit using approved refrigeration practices. Be sure to use the correct type and amount of refrigerant listed in the nameplate data and base unit documentation.

Install Control Wiring (See Fig. 6 and 7)

1.One control wire harness is supplied per circuit. Secure the DIN connector end on the solenoid valve coil with the screw in the connector. Verify the square rubber gasket is in place to ensure connection remains watertight.

2.Route the other end of the cable to the main control panel (where the display is located). For the circuit A solenoid, connect leads to TB5-7 and TB5-13. For the B circuit solenoid, connect leads to TB5-8 and TB5-13. For the C circuit solenoid (30RB210-300 only), connect the leads to TB5-6 and TB5-13. In all cases the black wire from the solenoid must be connected to TB5-13 to ensure correct polarity. Incorrect polarity will damage the control boards.

3.For 30RB250-300 units only, locate fan board 3 (FB3) in the C circuit power control panel. Route the C circuit solenoid cable to the panel. Locate the orange and brown wires from channel 7 of connector J3 on this board. Connect the red wire from the solenoid to the orange wire from the board. Connect the black wire from the solenoid to the brown wire from the board.

Configure Unit for Minimum Load Control —

The control must be configured for the minimum load control operation. Use the scrolling marquee display to configure the system.

IMPORTANT: This accessory can only be used on units configured for Cooler Fluid Type (Configuration →SERV→FLUD = 1 [Water]). The minimum load control accessory (HGBP) is not allowed on units configured for Cooler Fluid Type (Configuration →SERV→FLUD = 2 [Brine]).

1.Set the Enable/Off/Remote switch to OFF position.

2.Press ESCAPE until the screen is blank and use the arrow key to select the Configuration mode LED (light emitting diode).

3.Press ENTER , then use arrow key to select the sub-mode ‘UNIT’, then press Enter key.

4.Press the down arrow key until ‘HGBP’ is displayed.

5.Press ENTER key twice. The word ‘PASS’ and ‘WORD’ will flash.

6.Press 0 1 1 1 then ENTER key so that ‘0’ flashes.

7. Use arrow keys to change value to one of the following configurations:

CONFIGURATIONDESCRIPTION

1Used during chiller start-up only

2Used during start-up and for close control of leaving fluid temperature

Used during start-up, for close control

3of the leaving fluid temperature and for high ambient unloading

3

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Carrier 30RB060-390 Install Control Wiring See, Configure Unit for Minimum Load Control, Configurationdescription
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30RB060-390 specifications

The Carrier 30RB060-390 is a highly efficient rooftop air conditioning unit designed for commercial applications. This model is part of Carrier's comprehensive range of packaged rooftop units, recognized for their reliability, energy efficiency, and advanced technology features. Specifically engineered to meet diverse indoor air quality needs, the 30RB series provides an ideal solution for businesses seeking comfort cooling and heating in a single package.

One of the standout features of the 30RB060-390 is its energy efficiency. The unit is designed with an energy-efficient compressor and advanced heat exchange technology, often achieving high Seasonal Energy Efficiency Ratio (SEER) ratings. This means that businesses can benefit from lower energy bills while contributing to environmental sustainability. The unit can be configured to run on various electrical power sources, making it adaptable to different installation requirements.

The unit is equipped with a sophisticated microprocessor-based control system, allowing for precise temperature control and operation scheduling. This feature enhances user control, enabling adjustments to be made based on specific environmental needs. Additionally, the unit can be seamlessly integrated with advanced building management systems, which can optimize energy use and improve overall operational efficiency.

The Carrier 30RB060-390 also prioritizes durability and ease of maintenance. The unit's construction incorporates robust materials that withstand harsh weather conditions, ensuring long-term performance. Maintenance access is streamlined, with components strategically designed for easy serviceability, reducing downtime and service costs.

Another key characteristic of the 30RB series is its quiet operation. Engineered with sound-dampening technology and precise motor design, this unit minimizes noise levels, making it ideal for settings where a comfortable and distraction-free atmosphere is crucial, such as offices, schools, and hospitals.

In summary, the Carrier 30RB060-390 embodies a harmonious blend of efficiency, technology, and reliability. With features tailored for commercial use and considerations made for environmental impact, it stands out as a leading choice for rooftop air conditioning solutions. Investing in the 30RB060-390 ensures that businesses can enjoy optimal comfort while maintaining control over energy consumption and operational costs.
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