Aaon CC-063 Bedienungsanleitung

CC SERIES Condensers & Condensing Units Installation, Operation & Maintenance If the information in this manual is not fol

10 General Description AAON CC Series air-cooled condensers and condensing units have been designed for outdoor installation only. Startu

11 Direct Expansion (DX) Condensing Units Condensing units are factory assembled and wired, including a holding charge of refrigerant. Refriger

12 Installation AAON equipment has been designed for quick and easy installation. Locating Unit CC Series units are designed for outdoo

13 2-5 ton units are horizontal discharge and must have no obstruction on the discharge side of the unit. Unit should not be installed in

14 Route power and control wiring through the utility entries on the sides of the unit. It is recommended not to run power and control signal wires

15 Wire control signals to the unit’s low voltage terminal block located in the controls compartment. If any factory insta

16 Determining Refrigerant Line Size The piping between the condenser and low side must ensure: 1. Minimum pressure drop, and 2. Continuo

17 Liquid Line Routing Care should be taken with vertical risers. When the system is shut down, gravity will pull liquid down the vertical

18 A double suction riser can be applied to the situation of part load operation with a suction riser. A double suction riser is designe

19 When installing hot gas bypass risers, an oil drip line must be provided at the lowest point in the system. The oil drip line must be verti

20 The liquid lines have been chosen to maintain velocities between 100 and 350 fpm. The suction line diameters are selected to limit vel

21 Note: CC-006, CC-007, CC-008, and CC-010 HGB line sizes are based on four stage cooling operation condensing units, with two step compr

22 Table 3 - Predetermined Line Sizes for R-410A CC Condensing Units Model Circuit Connection Size Predetermined Line Size Liquid Suction HGB* HGR**

23 Startup (See back of the manual for startup form.) Compressors All compressors are equipped with crankcase heaters, whi

24 Units equipped with hot gas reheat must be charged with the hot gas valves closed while the unit is in cooling mode. After charging, unit should

25 The system is undercharged if the superheat is too high and the sub-cooling is too low. Correct an undercharged system by adding refrig

26 Table 5 - R-410A Refrigerant Temperature-Pressure Chart °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG 20 78.3 47 134.7 74 213.7 101 321.0 128 463.2 21

27 Operation Unit operations should be controlled with thermostat, or unit controller, never at the main power supply, except for emerg

28 Figure 4 - Variable Capacity Compressor Controller Low Voltage Terminals 24COM Module Common 24VAC Module Power C1 & C2 Demand Input P1

29 Figure 5 - Compressor Controller Flash Code Details Table 7 - Thermistor Temperature vs. Resistance Values °C °F kΩ °C °F kΩ -40 -40 2889.60 75 16

3 Table of Contents Safety ...

30 Low Ambient Options Adjustable fan cycling is a low ambient head pressure control option that cycles the condenser fans to maintain ref

31 cleaner. If a vacuum cleaner is not available, a soft non-metallic bristle brush may be used. In either case, the tool should be appl

32 use of this product, the product must be able to come in contact with the salts. These salts may be beneath any soils, grease or dirt; the

33 Refrigerant Piping Diagrams Figure 6 - A/C Only Piping, AHU Above CU

34 Figure 7 - A/C Only Piping, AHU Below CU

35 Figure 8 - Modulating Hot Gas Reheat Piping, AHU Above CU

36 Figure 9 - Modulating Hot Gas Reheat Piping, AHU Below CU

37 Figure 10 - Hot Gas Bypass Piping, AHU Above CU

38 Figure 11 - Hot Gas Bypass Piping, AHU Below CU

39 Figure 12 - Modulating Hot Gas Reheat with Hot Gas Bypass Piping, AHU Above CU

4 Index of Tables and Figures Tables: Table 1 - CC Series Clearances ...

40 Figure 13 - Modulating Hot Gas Reheat with Hot Gas Bypass Piping, AHU Below CU

41 Figure 14 - Heat Pump Piping, AHU Above CU

42 Figure 15 - Heat Pump Piping, AHU Below CU

43 Figure 16 - Heat Pump with Modulating Hot Gas Reheat Piping, AHU Above CU

44 Figure 17 - Heat Pump with Modulating Hot Gas Reheat, AHU Below CU

45 CC Series Startup Form Date:______________ Job Name:_____________________________________________________________________ Address:______________

46 Refrigeration System 1 - Cooling Mode Pressure Saturated Temperature Line Temperature Sub-cooling Superheat Discharge N/A N/A Suction N/A

47 Refrigeration System 1 - Heating Mode (Heat Pump Only) Pressure Saturated Temperature Line Temperature Sub-cooling Superheat Discharge N/A N/

48 Maintenance Log This log must be kept with the unit. It is the responsibility of the owner and/or maintenance/service contractor t

49 Literature Change History March 2009 Update of IOM revising the model numbers, manual format, and piping diagrams to show factory installed liqui

5 Safety Attention should be paid to the following statements:

50

AAON 203 Gum Springs Rd. Longview, TX 75602-1721 Phone: 903-236-4403 Fax: 903-236-4463 www.aaon.com CC Series Installation, Operation & M

6 GROUNDING REQUIRED All field installed wiring m

7 1. Startup and service must be performed by a Factory Trained Service Technic

CC Series Feature String Nomenclature Model Option : Unit Feature Options GEN MJREV UNIT SIZE VOLTAGE COMP TYPE CIRCUITS 1 2 3 4 5 6 7 CC - C -

CC Series Feature String Nomenclature Model Option : Unit Feature Options GEN MJREV UNIT SIZE VOLTAGE COMP TYPE CIRCUITS 1 2 3 4 5 6 7 CC - C -