B. Preliminary Equipment Check (YES or NO) (cont)

HAVE POWER SIDE ELECTRICAL COMPONENT CONNECTIONS BEEN CHECKED FOR TIGHTNESS? ON 30HK,HL UNITS, IS THE PROPER CONTROL VOLTAGE SUPPLIED TO TB2-1 AND TB2-3?

ON 30HK,HL 50 HZ UNITS, IS THE BLACK WIRE GOING TO TRAN1 AND TRAN2 CONNECTED TO THE RED LEAD FROM THE TRANSFORMER?

CHECK AIR SYSTEMS (YES OR NO)

ARE ALL AIR HANDLERS OPERATING? (refer to air-handling equipment Installation and Start-Up Instructions)

ARE ALL CHILLED FLUID VALVES OPEN?

IS THE FLUID PIPING CONNECTED PROPERLY?

 

HAS ALL AIR BEEN VENTED FROM THE COOLER LOOP?

 

IS THE CHILLED WATER (FLUID) PUMP (CWP) OPERATING?

 

IS THE CWP ROTATION CORRECT?

 

 

CWP MOTOR AMPERAGE:

Rated

Actual

C.Unit Start-Up(insert check mark as each item is completed)

HAS THE CHILLER BEEN PROPERLY INTERLOCKED WITH THE AUXILIARY CONTACTS OF THE CONDENSER WATER PUMP STARTER?

ASSURE THAT UNIT IS SUPPLIED WITH CORRECT CONTROL VOLTAGE POWER.

ASSURE CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR A MINIMUM OF 24 HOURS PRIOR TO START-UP.

ASSURE COMPRESSOR OIL LEVEL IS CORRECT.

ASSURE LIQUID LINE SERVICE VALVE(S) IS BACKSEATED.

ASSURE COMPRESSOR DISCHARGE SERVICE VALVE(S) IS BACKSEATED. ASSURE COMPRESSOR SUCTION SERVICE VALVE(S) IS BACKSEATED. LOOSEN COMPRESSOR SHIPPING ISOLATOR LOCKNUTS.

OPEN GAGE PANEL SERVICE VALVES.

BE SURE TEMPERATURE CONTROLLER DEADBAND AND SAMPLE RATE SETTINGS ARE SET.

SET POINT SHOULD BE ADJUSTED TO THE DESIRED COOLER LEAVING FLUID TEMPERATURE. (refer to installation instructions)

LEAK CHECK THOROUGHLY: COMPRESSOR(S), CONDENSER FITTINGS, TXV(s), SOLENOID VALVE(S), FILTER DRIER(S), FUSIBLE PLUG(S), AND COOLER HEAD(S), WITH GENERAL ELECTRIC H-10-B ELECTRONIC LEAK DETECTOR.

LOCATE, REPAIR, AND REPORT ANY R-22 LEAKS.

CHECK VOLTAGE IMBALANCE:

AB

 

 

 

AC

 

 

BC

 

 

AB + AC + BC (divided by 3) = AVERAGE VOLTAGE =

 

 

 

 

 

 

V

MAXIMUM DEVIATION FROM AVERAGE VOLTAGE

=

 

 

 

 

 

 

 

 

 

 

(MAX. DEVIATION)

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE IMBALANCE =

 

x 100 =

 

 

 

 

 

 

% VOLTAGE IMBALANCE

AVERAGE VOLTAGE

 

 

 

 

 

 

 

 

 

 

IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START CHILLER!

CALL LOCAL POWER COMPANY FOR ASSISTANCE.

ASSURE THAT INCOMING POWER VOLTAGE TO CHILLER IS WITHIN RATED UNIT VOLTAGE RANGE.

SYSTEM FLUID VOLUME IN LOOP: TYPE SYSTEM:

 

 

 

AIR CONDITIONING Ð MINIMUM 3 GAL. (3.25 L) PER NOMINAL TON (kW) =

 

 

GAL. (L)

PROCESS COOLING Ð MINIMUM 6 GAL. (6.5 L) PER NOMINAL TON (kW) =

 

 

GAL. (L)

CL-2

Page 41 Page 43
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Carrier 30HW018-040, 30HL050, 30HK040-060 specifications LOCATE, REPAIR, and Report ANY R-22 Leaks, Voltage Imbalance
Page 41 Page 43

30HK040-060, 060, 30HL050, 30HW018-040 specifications

The Carrier 30HW018-040, 30HL050, 060, and 30HK040-060 series represents a range of advanced rooftop units designed to meet the diverse heating and cooling needs of commercial buildings. Renowned for their efficiency and performance, these units incorporate cutting-edge technologies to improve operational effectiveness and reduce energy consumption.

One of the standout features of the Carrier 30HW series is its high-efficiency scroll compressors, which are engineered to provide exceptional cooling capacity while minimizing energy usage. These compressors operate quietly and ensure smooth performance across varying loads. Additionally, the units utilize advanced microprocessor controls that enhance system efficiency by enabling precise temperature regulation and optimizing energy consumption based on real-time weather conditions.

Another important aspect of the 30HL series is its ability to provide reliable heating and cooling capabilities even in extreme weather conditions. With robust heat exchangers and a range of variable-speed fans, these units can efficiently circulate air while maintaining optimal indoor comfort levels. Variable-speed technology not only enhances comfort but also improves energy savings, as the system can adjust its output based on occupancy and external temperature fluctuations.

The 30HK series, specifically designed for high-performance applications, features enhanced filtration systems which improve indoor air quality. These systems are capable of accommodating various filter types, ensuring that airborne contaminants are effectively captured. This makes the 30HK a suitable choice for environments where air quality is a priority, such as schools, hospitals, and commercial offices.

Moreover, all units in the 30HW, 30HL, and 30HK series are designed with ease of maintenance in mind. Removable panels and easy access points allow for quick servicing and reduces downtime. The compact design also ensures that installation is straightforward, making them a preferred choice for many contractors.

In summary, Carrier's 30HW018-040, 30HL050, 060, and 30HK040-060 series are integral solutions in the HVAC market, combining energy efficiency, advanced controls, and superior air quality features. These rooftop units are tailored for commercial applications, providing reliable heating and cooling solutions while prioritizing comfort and sustainability. Through continuous innovation, Carrier remains at the forefront of HVAC technology, ensuring that their products meet the evolving demands of the industry.
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