Carrier 30RAP010-060 Typical Piping Diagram 30RAP Units with Hydronic Package

Page 13

UNITS WITH FACTORY-INSTALLED HYDRONIC PACKAGES — The 30RAP chillers with factory-installed hydronic packages are designed for use with closed systems, meaning that there is no more than one water-air interface in the water loop. Cooling tower loops, for example, have two water-air interfaces (sump and nozzles) and would thus be clas- sified as open, whereas a correctly designed chilled water loop with the only water-air interface being in the expansion tank is closed. Since closed and open water systems behave very dif- ferently, these instructions assume that the chilled water loop is closed. A system installed incorrectly such that air is not han- dled properly — pipe leaks, vent leaks, air in pipes, etc. — may behave as an open system and thus have unsatisfactory opera- tion. Pump seal wear can also cause leaks that cause poor sys- tem operation.

Proper closed system design and installation procedures should be followed closely. The system must be constructed with pressure tight components and thoroughly tested for installation leaks. Factory-supplied hydronic systems are avail- able with single or dual (for back-up) pumps.

Figure 11 shows a typical installation with components that might be installed with the hydronic package of the 30RAP unit. The factory-installed system includes all of the compo- nents within the dashed lines. Figure 12 illustrates a typical dual pump package for the 010-030 size models.

NOTE: For units with single pumps, it is recommended that isolation (shutoff) valves be placed exterior to the unit to allow removal and service of the entire pump assembly, if necessary. Units with dual pumps have pump isolation valves provided. Also, if the unit is isolated with valves, a properly sized pressure relief valve should be installed in

the piping between the unit and the valves, following all applicable state and local codes.

System Pressurization — A proper initial cold fill pressure must be established before the filling of the unit. The initial cold fill pressure is the pressure applied at the filling point to fill a system to its highest point, plus a minimum pressure at the top of the system (4 psi minimum) to operate air vents and pos- itively pressurize the system.

The compression tank (sometimes called expansion tank) is very important to system pressurization. The compression tank actually serves several purposes:

1.Provide net positive suction head required (NPSHR) for the pump to operate satisfactorily.

2.Set system pressure.

3.Accommodate expansion/contraction of water due to temperature changes.

4.Acts as a pressure reference for the pump.

The compression tank pressure must be set BEFORE the system is filled. The tanks are pre-charged at the factory to 40 psig (276 kPa). If the 30RAP unit with expansion tank is the high point in the system, tank pre-charge pressure of 40 psig (276 kPa) will be adequate. If the 30RAP unit with expansion tank is NOT at the high point in the system, then the minimum pre-charge pressure for the water system must be determined using Table 2 and the method below:

Tank Pressure = 4 + (height from tank to top of system in feet/“X”)

[27.6 + (height in m x 22.6/”X”)]

2

14

12 11

1

13

7

5 6

3

4

6

12

11

9

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

LEGEND

 

1

Strainer/Blow-Down Valve

8

Flow Switch

---Factory Supplied

2

Expansion Tank

9

Balance Valve/Drain Plug

 

3

Pump

10

Pressure Relief

 

4

Electric Heater

11

Isolation Valves

 

5

Air Vent Connection Port

12

Flex Connections

 

6

Pressure/Temperature Access Port

13

Pressure Reducing/Fill Valve

a30-4871

7

Heat Exchanger

14

Air Separator and Vent

Fig. 11 — Typical Piping Diagram — 30RAP Units with Hydronic Package

13

Image 13
Contents Installation Instructions Quality Assurance A30-4861 Unit Operating WeightsUnit 30RAP Physical Data, 30RAP EnglishPhysical Data, 30RAP SI Cooler Fluid and Drain Piping Con- nections Check Compressor Mounting AsA30-4916 A30-4948 Dimensions 30RAP010 and 015 UnitsA30-4949 Dimensions 30RAP018-030 UnitsDimensions 30RAP035-060 Units A30-4879 Accessory Storage Tank Dimensions 30RAP010,015 UnitsA30-4880 Accessory Storage Tank Dimensions 30RAP018-030 UnitsA30-4880 A30-4881 Accessory Storage Tank Dimensions 30RAP035-060 UnitsTypical Piping Diagram 30RAP Units with Hydronic Package A30-4635 Factor for Setting Tank PressureFill the Chilled Water Loop Water Quality Characteristics LimitationsTypical Set Up for Cleaning Process Head kPa as Read on Balancing Valve for 30RAP010-030 Head Ft Water as Read on Balancing Valve for 30RAP010-030Head Ft Water as Read on Balancing Valve for 30RAP035-060 Head kPa as Read on Balancing Valve for 30RAP035-060Heat Exchanger Pressure Drop 30RAP035-060 English Heat Exchanger Pressure Drop 30RAP035-060 SI Minimum Fluid Volume In CirculationMake Electrical Connections Wind Baffle Accessory Quantities30RAP Electrical Data No Hydronic Package Maximum Field Wiring Sizes38RAP Unit Voltage Pump Size 3 hp Pump Size 5 hp Pump Size 7.5 hp Hz 3 Ph 208/230-60 75.3 110 260.2 80.1 125 265.0 100 86.7 271.6 Fan Electrical Data Optional Value Sound Fans Fan Electrical Data Standard Low-Sound AeroAcoustic FansPump Electrical Data Accessory Tank Electrical DataPER Circuit RLA LRA Compressor Electrical DataCheck Refrigerant Circuit Install AccessoriesTypical Main Power and Control Connections Suction Access Port Sizes 018-030 Shown Units Without Hydronic Package English Unit Pressure Drop Curves, 30RAP010-060KPa Drop Water Pressure Liters/Second Appendix a Unit Pressure Drop Curves, 30RAP010-060Units with Single Pump Hydronic Package English Units with Single Pump Hydronic Package SI Units with Dual Pump Hydronic Package English Units with Dual Pump Hydronic Package SI Accessory Tank Flow Rate L/s Appendix a Pressure Drop Curves, Accessory Storage TanksPage Copyright 2009 Carrier Corporation
Related manuals
Manual 124 pages 40.33 Kb

30RAP010-060 specifications

The Carrier 30RAP010-060 is a series of rooftop air conditioning units designed for effective climate control in commercial applications. Engineered with advanced technologies, these units are known for their reliability, energy efficiency, and ease of installation, making them a suitable choice for a range of settings including offices, retail spaces, and industrial facilities.

One of the standout features of the 30RAP series is its robust construction. Designed to withstand various environmental conditions, these units come equipped with a weather-resistant cabinet and a corrosion-resistant finish. This durability ensures long-term performance and reduced maintenance costs.

Energy efficiency is a significant characteristic of the Carrier 30RAP series. These units utilize advanced technologies such as a high-efficiency compressor and variable speed fans. The inclusion of economizers also contributes to energy savings by allowing the system to take advantage of outdoor air when the conditions are favorable. With high SEER (Seasonal Energy Efficiency Ratio) ratings, the 30RAP units help businesses reduce operating costs while minimizing their environmental footprint.

The 30RAP series is equipped with smart control systems that provide enhanced operational efficiency and comfort. With features such as programmable thermostats and remote access capabilities, building managers can easily monitor and adjust the system to maintain optimal indoor climate conditions. Additionally, the units are compatible with building automation systems, allowing for seamless integration into a larger HVAC network.

The installation process of the Carrier 30RAP010-060 is streamlined thanks to a compact design and lightweight construction, which simplifies the transportation and placement on rooftops. Moreover, the unit's modular components facilitate easy access for maintenance and repairs, minimizing downtime and improving overall reliability.

In summary, the Carrier 30RAP010-060 series stands out for its combination of durability, energy efficiency, and advanced control technologies. It is an ideal solution for businesses seeking reliable climate control systems that balance performance with cost-effectiveness. Whether for new installations or replacements, these rooftop units provide the necessary flexibility and efficiency needed in today’s commercial environments. With strong backing from Carrier, a leader in HVAC technology, the 30RAP series ensures lasting comfort and operational efficiency.