York CURBPAK CP23 Installation Operation & Maintenance page 4

Figure
1 Cutaway of CurbPak Showing
Various Segments .................................................. 6
2 Segment Availability .............................................. 10
3 Service Clearance ................................................. 11
4 Curb Assembly ..................................................... 12
5 Typical Curb Installation Assembled
and Cross Sections .............................................. 13
6 Rigging .................................................................. 14
7 Splice Kit for Shipping Split Assembly ................ 15
8 Rubber-in Shear Isolator - No Adjustment .......... 16
9 Spring Isolator ....................................................... 16
10 Standard Tie-Down / No Snubber ........................ 16
11 Tie-Down Method .................................................. 16
12 Standard Tie-Down with Snubber ........................ 17
13 Seismic Snubber .................................................. 17
14 Down Discharge Duct Connections .................... 17
15 Recommended Discharge Duct Arrangement when
Turns are Required .............................................. 17
16 Duct Penetration of Roof ...................................... 18
17` Roof to Duct Installation - Horizontal
Discharge ............................................................. 18
18 Pipe Chase Enclosure ......................................... 19
19 Pipe Chase Enclosure Assembly for Units with
Pipe Chase Shipped Loose ................................. 19
20 Factory Coil Connections ..................................... 20
21 Typical DX Coil Piping ........................................... 22
22 Drain Trap Showing Water Location During
Draw Through Operation Stages ......................... 22
23 Drain Trap Piping for Draw-Through Unit ............ 22
24 Drain Trap Showing Piping for Blow-Through Unit
(Positive Pressure In Unit) ................................... 23
25 Combining Drain Lines ........................................ 23
26 Sheave Alignment ................................................. 23
27 Typical Variable Inlet Vane Components ............. 24
28 Variable Inlet Vane Installed in
Inlet Cone Airfoil Fan ............................................ 25
29 Jack Shaft Crank Arm Position ............................ 26
30 Torque Requirements to Operate
Variable Inlet Van (VIV) .......................................... 26
31 Typical Motor Data / Nameplate ........................... 27
32 Motor Control Centrifugal Diagram ...................... 28
4
LIST OF ILLUSTRATIONS
Page Figure
33 Wiring Diagram Starter Panel .............................. 29
34 Wiring Diagram 2 Speed - 2 Winding .................. 30
35 Typical Electric Heater .......................................... 31
36 YORK Air-Modulator w/Options Panel .................. 32
37 Motor Starter Panel ............................................... 32
38 Typical CurbPak w/Factory-Packaged Controls or
39 Types of Centrifugal Fan Impellers ...................... 35
40 Locking Ring Variable Pitch Sheaves .................. 36
41 Lubrication Lines .................................................. 41
42 Grease Fittings ..................................................... 43
43 Typical Drive Kit Data Tag ..................................... 45
44 Belt Tensioning Gauge ......................................... 45
45 FC Fan Shaft and Wheel Marking ........................ 46
46 Airfoil Inlet Vane and Cone Assembly .................. 47
47 Bearing with Setscrew Type Locking Device ....... 48
48 Bearing with Eccentric Cam ................................. 48
49 ............................................................................... 49
50 Bearing Installation .................................................. 49
51 Split Bearing .......................................................... 50
52 ............................................................................... 50
53 Determining Left - or Right-Hand Coil Connection/
54 Filters for FF, RF, BF and HF Segments .............. 52
55 Filters for AF Segment .......................................... 53
56 Filters for CF Segment ......................................... 54
57 Universal Holding Frames and Latches ............. 55
57A Universal-Holding Frames and Latches
58 Welded Bevel Seal Filter Installation ................... 57
59 Bevel Seal Extrusion Sections ............................. 57
59A Welded Bevel Seal Frame and Clips ................... 58
60 HEPA Filter Frame Cross Sections ...................... 58
61 Construction of Pitot Tube .................................... 59
62 Pitot Tube .............................................................. 59
63 Inclined Manometer .............................................. 60
64 Magnehelic Pressure Gauge ............................... 60
65 "U" Tube Manometers .......................................... 60
66 Slack-Tube Manometer ........................................ 61
67 Static Pressure - Air System ................................ 61
Single Point Motor Control Center ....................... 33
Drive Side .............................................................. 51
Specifications ....................................................... 56
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YORK INTERNATIONAL