Aaon LC-054 Bedienungsanleitung

LC Series Air-Cooled Condenser Chillers Installation, Operation & Maintenance If the information in this manual is not follo

10 LC Features Description F B - 0 0 0 - 0 0 0 - A 0 0 B 0 3 4 5A 5B 5C 6A 6B 6C 7 8 9 10 11 0 = Heat Trace and Insulation on Water Ev

11 LC Features Description B 0 - 0 0 - 0 0 0 A 0 0 0 0 B 12 13 14A 14B 15 16 17 18 19 20 21 22 23 0 = Standard FEATURE 12: CONTROLS B =

12 General Description LC Series air-cooled condenser chillers are complete self-contained liquid chilling units. They are factory assembled, wir

13 Never cut off the main power supply to the unit, except for complete shutdown. When power is cut off from the unit, any compressors using crankc

14 Primary Pumping Package Primary pumping uses a single pump to move water (or glycol) through the evaporator and back to the building. This pump

15 Dual Pumps When redundant pumping is required, a factory installed dualArm pump can be ordered on units 15 tons and larger. A dualArm pump is a p

16 LC Series chillers have factory installed louvered sheet metal condenser coil guards. The placement relative to the building air intakes and o

17 The AAON low ambient (condenser flood-back) system is used to operate a refrigerant system below 25°F outside air temperature. As the ambient tem

18 Condenser Flooding In order to maintain head pressure in the refrigeration system, liquid refrigerant is kept in the condenser to reduce condens

19 Startup (See back of the manual for startup form.) Before startup of the chiller make sure that the following items have be

20 Maintenance General Qualified technicians must perform routine service checks and maintenance. This includes reading and recording the condensin

21 Compare calculated sub-cooling to the table below for the appropriate unit type and options. Measure the temperature of the suction line close t

22 The system is undercharged if the superheat is too high and the sub-cooling is too low. Correct an undercharged system by adding refrigerant to

23 Lubrication All original motors and bearings are furnished with an original factory charge of lubrication. Certain applications require bearings b

24 Maintenance Recommendations Pump/Fan Motor Maintenance Cleaning - Remove oil, dust, water, and chemicals from exterior of motor and pump. Keep

25 Surface loaded fibers or dirt should be removed prior to water rinse to prevent restriction of airflow. If unable to back wash the side of the coi

26 be removed with the approved cleaning agent. Remove Barrier - Soluble salts adhere to the substrate. For the effective use of this product, the

27 Appendix - Water Piping Component Information Water Pressure Relief Valve Overview ASME Rated, Design Certified and Listed by C.S.A. Used fo

28 Dimensions & Weights Product Number Size A B C D E F Cv Weight Lbs Kg. 431 1” 6” 4” 2-1/2” ** 1/2” NPT 1/8” NPT 31.4 4

29 may be experienced, steps should be taken to minimize contact or warn operators/users that normal operating conditions will be exceeded. In certa

3 Table of Contents Safety ...

30 Pump Piping - General Caution The discharge valve only is to be used to throttle pump flow, not the suction valve. Care must be t

31 discharge gauge reading. Convert the result into the units of the pump head as stated on the pump nameplate and compare the values. Should the ac

32 coupled pumps and is flushed and vented to the suction on close coupled pumps. The split-coupled pump is flushed from the pump discharge because

33 Noise Levels Estimated Pumping Unit Sound Power Level, (Decibels), A-Weighted, at 1 m (3 ft.) from unit. Vibration Levels Vertical In-Line pum

34 Procedure for Starting the Pump after Servicing: 1. Ensure serviced pump is fully re-assembled including all seal flush lines and drain plugs.

35 Unlocking: 1. Open the interconnecting valve on the seal flush line to pressurize the serviced pump and vent air through bleeder valve on series

36 cause arm to rotate quickly with force when unlocked. 3. Rotate valve to center position so that the center pin of the locking arm (4) is loca

37

38

39 Suction Guides Introduction Suction guides are designed for bolting directly onto the suction flange of horizontal or vertical shaft centrifugal

4 Air-Cooled Condenser ... 24 E-Coated C

40 Replace the permanent strainer into the fitting body, once the temporary strainer is removed. Replace the cover into the body. Ensuring that th

41 4. Position the adjoining flange or the pipe to the Armgrip flange adapter and install the remaining bolts. The two locking bolts should be ti

42 The quarter turn graduations on the sleeve, with the scribed line on the stem provide an approximate flow measurement. Note: The valve is s

43 From the flow characteristic curve, a 4 inch valve at 50% open represents 34% of maximum flow. The approximate flow of a 4 inch valve with a 5.

44 Pressure-Temperature Limits: Flo-Trex Cross Section 1. Body Main 2. Eye Bolt 3. Shaft 4. Spring 5. Spacer 6. Disc 7. Seat 8. O ring body 9. B

45 LC Series Startup Form Job Name:_______________________________________________ Date:______________ Address:________________________________

46 Water/Glycol System 1. Has the entire system been flushed and pressure checked? Yes No 2. Have isolation valves to the chiller been i

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

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

49 Literature Change History June 2010 Revision of the IOM adding PVC and CPVC piping Caution. April 2011 Revision of the IOM correcting the netwo

5 Index of Tables and Figures Tables: Table 1 - Condenser Flooding ...

AAON 2425 South Yukon Ave. Tulsa, OK 74107-2728 Phone: 918-583-2266 Fax: 918-583-6094 www.aaon.com LC Series Installation, Operation & M

6 Safety ELECTRIC SHOCK, FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could resul

7 1. The unit is for outdoor use only. See General Information section for more information. 2. READ THE ENTIRE INSTALLATION, OPERATION AND MAIN

8 LC Base Model Description - LC - 038 3 - 0 - A A 0 A - 0 0 0 Series and Generation Unit Size Voltage Blank A1 A2 A3 A4 B1 B2 B3 BASE MO

9 LC Features Description : B G J G - 0 1A 1B 1C 1D 2 FEATURE 1: BUILDING PUMPING 0 = Standard, No Building Pump 1A: PUMP OPTIONS B = Primary P