AAON LL-540 - Manual (Page 6)

6
Index of Tables and Figures
Tables:
Table 1 - Service Clearances......................................................................................................... 26
Table 2 - Mounting Dimensions ................................................................................................... 27
Table 3 - Boiler Rated Input Capacity .......................................................................................... 29
Table 4 - Condenser Flooding....................................................................................................... 35
Table 5 - Return/Exhaust Fan Pin Location .................................................................................. 40
Table 6 - Return/Exhaust Fan Pin Location .................................................................................. 40
Table 7 - Fan Assembly Bushing Torque Specifications.............................................................. 41
Table 8 - Filter Drier Maximum Pressure Drop............................................................................ 42
Table 9 - Acceptable Refrigeration Circuit Values ....................................................................... 44
Table 10 - R-134a Refrigerant Temperature-Pressure Chart ........................................................ 45
Table 11 - R-410A and R-22 Refrigerant Temperature-Pressure Chart ....................................... 46
Table 12 - Recirculating Water Quality Guidelines ..................................................................... 55
Figures:
Figure 1 - Backflow Preventer ...................................................................................................... 23
Figure 2 - Pressure Relief Valve ................................................................................................... 24
Figure 3 - Curb Mounting with Dimensions ................................................................................. 26
Figure 4 - Steel Mounting Rail with Dimensions ......................................................................... 27
Figure 5 - Marked Lifting Points .................................................................................................. 27
Figure 6 - LL Series Lifting Detail ............................................................................................... 28
Figure 7 - Boiler Vent Shipping Covers ....................................................................................... 29
Figure 8 - Boiler Vent Components .............................................................................................. 30
Figure 9 - Correct Vent Pipe Connection ..................................................................................... 30
Figure 10 - Incorrect Vent Pipe Connection ................................................................................. 31
Figure 11 - Piping Schematic of Example System using the LAC Valve. ................................... 32
Figure 12 - Piping Schematic of Example System using the OROA Valve. ................................ 33
Figure 13 - Piping Schematic of Example System using the ORI/ORD Valve. ........................... 34
Figure 14 - Terminal Block ........................................................................................................... 36
Figure 15 - Evaporative-Cooled Condenser Section Layout ........................................................ 37
Figure 16 - Fan with the HUB on the top and RET on the bottom. .............................................. 39
Figure 17 - Bushing Mount Location............................................................................................ 39
Figure 18 - RET with Pin in Groove 4 .......................................................................................... 39
Figure 19 - Fan HUB and RET Castings ...................................................................................... 40
Figure 20 - Pitch Insert ................................................................................................................. 41
Figure 21 - Replaceable Core Filter Driers ................................................................................... 42
Figure 22 - Proper Unit Location .................................................................................................. 49
Figure 23 - Improper Unit Locations ............................................................................................ 50
Figure 24 - Water Makeup Valve ................................................................................................. 52