Pace PAI Guide

PAI/PAO
Indoor and Outdoor
Air Handling Units
Installation and Assembly Manual
Form PA102.20-N1 (718) │ Supersedes: PA102.20-N1 (1017)
LD22601

PACE │Installation & Assembly Manual
Issue Date: 07/03/2018 2Form PA102.20-N1
This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance, or
service, individuals may be exposed to certain compo-
nents or conditions including, but not limited to: heavy
objects, refrigerants, materials under pressure, rotat-
ing components, and both high and low voltage. Each
of these items has the potential, if misused or handled
improperly, to cause bodily injury or death. It is the ob-
ligation and responsibility of rigging, installation, and
operating/service personnel to identify and recognize
these inherent hazards, protect themselves, and pro-
ceed safely in completing their tasks. Failure to comply
with any of these requirements could result in serious
damage to the equipment and the property in which it
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
is situated, as well as severe personal injury or death
to themselves and people at the site.
This document is intended for use by owner-authorized
rigging, installation, and operating/service personnel. It
is expected that these individuals possess independent
training that will enable them to perform their assigned
tasks properly and safely. It is essential that, prior to
performing any task on this equipment, this individual
shall have read and understood the on-prooduct labels,
this document, and any referenced materials. This in-
dividual shall also be familiar with and comply with all
applicable industry and governmental standards and
regulations pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to specific situations:
Indicates a possible hazardous situa-
tion which will result in death or serious
injury if proper care is not taken.
Indicates a potentially hazardous situa-
tion which will result in possible injuries
or damage to equipment if proper care
is not taken.
Identies a hazard which could lead
to damage to the machine, damage to
other equipment and/or environmental
pollution if proper care is not taken or
instructions and are not followed.
Highlights additional information useful
to the technician in completing the work
being performed properly.
External wiring, unless specied as an optional connection in the manufacturer’s product line,
is not to be connected inside the control cabinet. Devices such as relays, switches, transduc-
ers and controls and any external wiring must not be installed inside the micro panel. All wir-
ing must be in accordance with PACE's published specications and must be performed only
by a qualied electrician. PACE will NOT be responsible for damage/problems resulting from
improper connections to the controls or application of improper control signals. Failure to fol-
low this warning will void the manufacturer’s warranty and cause serious damage to property
or personal injury.

Form PA102.20-N1 3
Installation & Assembly Manual │ PACE
Issue Date: 07/03/2018
MANUAL DESCRIPTION FORM NUMBER
PACE Air Handling Units Operation and Maintenance PA102.20-OM2
Steps to Protect New Equipment Warranty PA102.20-CL1
Air Handling Units Start-up Checklist PA100.00-CL1
Long-Term Storage Requirement - Field Preparation - Air Handling Units PA50.20-NM3
Long-Term Storage Periodic Checklist and Logs - Air Handling Units PA50.20-CL3
Limited Warranty PA50.05-NM2
CHANGEABILITY OF THIS DOCUMENT
In complying with PACE's policy for continuous product
improvement, the information contained in this docu-
ment is subject to change without notice. PACE makes
no commitment to update or provide current informa-
tion automatically to the manual or product owner. Up-
dated manuals, if applicable, can be obtained by con-
tacting the nearest PACE sales representative.
It is the responsibility of rigging, installation, and operat-
ing/service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rig-
ging, lifting, and operating/service personnel should
verify whether the equipment has been modified and
if current literature is available from the owner of the
equipment prior to performing any work on the unit.
CHANGE BARS
Revisions made to this document are indicated with a
line along the left or right hand column in the area the
revision was made. These revisions are to technical in-
formation and any other changes in spelling, grammar
or formatting are not included.
ASSOCIATED LITERATURE

PACE │Installation & Assembly Manual
Issue Date: 07/03/2018 4Form PA102.20-N1
MODEL NOMENCLATURE
PA
PRIMARY IDENTIFIER
PA
ENVIRONMENT
I=Indoor
O=Outdoor
I
NOMINAL
HEIGHT
27 to 132
NOMINAL
WIDTH
27 to 288
075
048 xD
SUPPLY AND RETURN/EXHAUST FAN OPTIONS
A=None
B=DWDI FC Fan without Motor Controller
C=DWDI FC Fan with Service Disconnect Only
D=DWDI FC Fan with Motor Starter
E=DWDI FC Fan with Variable Frequency Drive (VFD)
F=DWDI AF Fan without Motor Controller
G=DWDI AF Fan with Service Disconnect Only
H=DWDI AF Fan with Motor Starter
J=DWDI AF Fan with VFD
K=SWSI PL Fan without Motor Controller
L=SWSI PL Fan with Service Disconnect only
M=SWSI PL Fan with Motor Starter
N=SWSI PL Fan with VFD
P=SWSI PL Fan Direct Drive without Motor Controller
Q=SWSI PL Fan Direct Drive with Service Disconnect Only
R=SWSI PL Fan Direct Drivee with Motor Starter
S=SWSI PL Fan Direct Drive with VFD
C
FACTORY MOUNTED
END DEVICES
0=No
1=Yes
046
M
MOTOR HORSEPOWER
SUPPLY AND RETURN/EXHAUST
FAN
A=0
B=1/2
C=3/4
D=1
E=1 1/2
F=2
G=3
H=5
J=7 1/2
K=10
L=15
M=20
N=25
P=60
Q=40
R=50
S=60
T=75
U=100
V=125
K
VOLTAGE CODE
12=120-1-60
17=200 or 208-3-60
27=277-1-60
28=230 or 240-3-60
40=360-3-60
44=440-3-50
46=460-3-60
50=380 or 415-3-50
58=575-3-60
63=220-3-50
A
DESIGN
A=Original Unit Design
Note: The terms skid and section have the same meaning in this document;
Variable Speed Drive (VSD) and Variable Frequency Drive (VFD) do as well.

Form PA102.20-N1 5
Installation & Assembly Manual │ PACE
Issue Date: 07/03/2018
TABLE OF CONTENTS
SECTION 1 - GENERAL INFORMATION AND SAFETY.......................................................................................13
Introduction.....................................................................................................................................................13
Warranty.........................................................................................................................................................13
Responsibility for Safety.................................................................................................................................13
SECTION 2 - PRODUCT DESCRIPTION...............................................................................................................15
Typical Operation ...........................................................................................................................................15
Ventilation System.................................................................................................................................15
Economizer System (Typical)................................................................................................................15
Heating and Cooling System..........................................................................................................................16
Cleaning .........................................................................................................................................................16
Hand Orientation ............................................................................................................................................16
AHU Identification (ID)....................................................................................................................................16
AHU ID Label ........................................................................................................................................17
Skid ID Label.........................................................................................................................................17
Segment ID Box ....................................................................................................................................17
Shipped Loose Parts.............................................................................................................................18
Direction of Airflow..........................................................................................................................................18
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION ...............................................................................19
Delivery and Storage......................................................................................................................................19
Short Term.............................................................................................................................................19
Long Term .............................................................................................................................................20
Inspection, Damage, and Shortage ...............................................................................................................20
Check Doors and Latches.....................................................................................................................21
Indoor AHUs..........................................................................................................................................21
Outdoor AHUs .......................................................................................................................................21
Shipped Loose Parts.............................................................................................................................21
Lifting Weights................................................................................................................................................21
Moving the AHU .............................................................................................................................................21
Rigging ...........................................................................................................................................................21
Using Fork Lift in Special Circumstances.......................................................................................................22
Come-A-Longs (Power Pulls).........................................................................................................................22
Proper Lifting with Shackles ..........................................................................................................................22
Preparing the Site...........................................................................................................................................23
Clearance for Outdoor AHUs.................................................................................................................23
Assembling the PACE Provided Curb ...................................................................................................24
Clearance and Mounting for Indoor AHUs.............................................................................................26
Installing Ceiling Suspended AHUs.......................................................................................................27
Tools Required to Install AHU.........................................................................................................................28
Installing Outdoor AHU...................................................................................................................................28
Single Piece Outdoor AHU....................................................................................................................28
Multi-Piece Outdoor AHU ......................................................................................................................29
Setting Up the Sections ........................................................................................................................31
Pulling the AHU Sections Together .......................................................................................................32
Installing Hood with Moisture Eliminators..............................................................................................33
Outdoor Air Temperature and/or Humidity Sensors............................................................................... 33
Installing Indoor AHU......................................................................................................................................34
Installing an AHU with Expanded Cabinet ............................................................................................35

PACE │Installation & Assembly Manual
Issue Date: 07/03/2018 6Form PA102.20-N1
TABLE OF CONTENTS (CONT'D)
Setting Up and Pulling AHU Sections Together.....................................................................................36
Installing a Tiered AHU..........................................................................................................................38
Assembling the End Channel Shipping Split.........................................................................................40
Installing Damper Actuator ....................................................................................................................41
Installing Multi-Zone (MZ) Dampers......................................................................................................42
Installing Field Supplied MZ Damper Actuators ...................................................................................43
Shipped Loose Parts......................................................................................................................................43
Pipe Chase, Hoods and Seam Caps.....................................................................................................44
Additional Parts .....................................................................................................................................46
Air Filters ........................................................................................................................................................47
Maintaining and Replacing Filters .........................................................................................................47
Filter Installation
Installing a 2 in. Pleated Filter ...............................................................................................................50
Installing a 4 in. Pleated Filter ...............................................................................................................51
Installing a Single Headered (SH) Filter................................................................................................52
Installing a 2 in. Pre-Filter Combined with a SH Final Filter..................................................................52
Installing a Multi-Cell SBM Double Headered (DH) Filter......................................................................53
Installing a 2 in. and 4 in. Pre-Filter Combined with a DH Final Filter...................................................54
Hepa Filters....................................................................................................................................................56
Koch HEPA Filter Frame .......................................................................................................................56
Welded Bevel Seal Frame.....................................................................................................................57
Visual Control Filter Clamps...........................................................................................................................57
HEPA Filter Applications........................................................................................................................57
Filling Inertia Fan Base ..................................................................................................................................60
Thrust Restraint Replacement and Adjustment.............................................................................................. 60
Rear Discharge Orientation...................................................................................................................60
Aligning Sheaves ...........................................................................................................................................62
Using a Straightedge.............................................................................................................................62
Using a String........................................................................................................................................62
Belt Replacement Tensioning and Sheave Alignment for Top Mount.............................................................63
Steam Humidifier............................................................................................................................................65
UVC Emitter Lamps........................................................................................................................................65
Two Types of Lamps .............................................................................................................................65
Air Measuring Device Connections ...............................................................................................................70
Air Measuring at the Fan Inlets .............................................................................................................70
Air Measuring at Unit Outside Air Inlets.................................................................................................70
Back Draft Dampers for Dual Fans and Fan Arrays ......................................................................................71
Installing the Pipe Chase................................................................................................................................71
Tools and Materials ...............................................................................................................................71
Preparing Pipe Chase for Installation....................................................................................................71
Apply Gaskets .......................................................................................................................................72
Attach Pipe Chase.................................................................................................................................72
Seal Pipe Chase to AHU .......................................................................................................................73
Install Cover Angles...............................................................................................................................73
Install Base Rail Covers (If Applicable) .................................................................................................74
Installing External Vent Piping for Outdoor AHUs ..........................................................................................75
Condensate Drain Arrangement............................................................................................................75
General Electrical Information........................................................................................................................77
Power Connections ........................................................................................................................................77
Single Point Power................................................................................................................................77

Form PA102.20-N1 7
Installation & Assembly Manual │ PACE
Issue Date: 07/03/2018
Motors for Supply, Return, and Exhaust Fans.......................................................................................78
Wiring the Energy Recovery Wheel ...............................................................................................................78
Wiring the Gas Heat Device...........................................................................................................................79
Wiring the Electric Heat Device......................................................................................................................80
Power Options.......................................................................................................................................80
Disconnect Switch Options....................................................................................................................80
Control Options .....................................................................................................................................81
Installing Electrical Heat Option ............................................................................................................81
Electric Humidifier ..........................................................................................................................................84
Humidifier .......................................................................................................................................................84
Field Penetrations for Piping and Electrical Connections...............................................................................85
Tools Required ......................................................................................................................................85
Material Required..................................................................................................................................85
Procedure..............................................................................................................................................85
Lights for AHUs ..............................................................................................................................................87
Piping Connections ........................................................................................................................................87
Coil Piping ......................................................................................................................................................88
Staggered Coils.....................................................................................................................................88
Hot and Chilled Water Coils ..................................................................................................................89
Water Treatment.............................................................................................................................................91
Freeze Protection..................................................................................................................................91
Steam Coils...........................................................................................................................................91
Steam Distributing Coils........................................................................................................................91
Steam Control .......................................................................................................................................91
Steam Traps..........................................................................................................................................91
Drains and Traps ............................................................................................................................................93
Condensate Drain Piping ......................................................................................................................93
Elevating AHU for Gravity Floor Drain Connections..............................................................................94
Duct Connections...........................................................................................................................................94
Duct Connection Guidelines..................................................................................................................94
Flanged Duct or Sleeves.......................................................................................................................94
Raw or Straight Edge Duct or Sleeves..................................................................................................95
Sound and Vibration Transmission .......................................................................................................95
Installing Top Discharge Outdoor AHU Duct .........................................................................................95
Installing Front and Rear Discharge Outdoor AHU Duct.......................................................................95
Vertical Tube Integral Face and Bypass (VIFB) and Integral Face and Bypass (IFB).................................... 97
Shipping Bolts (VIFB Only)....................................................................................................................97
Piping Suggestions ...............................................................................................................................97
Flexible Connectors (VIFB Only)...........................................................................................................97
Freezing Conditions ..............................................................................................................................97
Refrigeration.................................................................................................................................................101
DX Direct Expansion Coils ..................................................................................................................101
Available Coil Arrangements ..............................................................................................................103
Thermostatic Expansion Valves (TXV) ........................................................................................................105
Hot Gas Bypass (HGBP)..............................................................................................................................105
Dx Coil Circuiting and Staging......................................................................................................................105
Advantages of Multiple Control Stages ...............................................................................................106
Maintaining Adequate Airflow .....................................................................................................................106
VAV Systems................................................................................................................................................107
TABLE OF CONTENTS (CONT'D)

PACE │Installation & Assembly Manual
Issue Date: 07/03/2018 8Form PA102.20-N1
LIST OF FIGURES
FIGURE 1 - Cutaway Showing Segmented Construction .......................................................................................15
FIGURE 2 - AHU and Coil Hand Identication ........................................................................................................16
FIGURE 3 - AHU ID Label.......................................................................................................................................17
FIGURE 4 - Skid ID Label .......................................................................................................................................17
FIGURE 5 - Example of Segment ID Box................................................................................................................17
FIGURE 6 - Metal Spacers on Doors ......................................................................................................................21
FIGURE 7 - Recommended Lifting with Multiple Points..........................................................................................22
FIGURE 8 - Typical Come-A-Longs ........................................................................................................................22
FIGURE 9 - Proper Lifting with Shackle with Corner Connector Corners ...............................................................22
FIGURE 10 - Proper Lifting with Shackle at Lifting Lug...........................................................................................23
FIGURE 11 - Proper Lifting with Base Rail..............................................................................................................23
FIGURE 12 - Minimum Service Clearances............................................................................................................24
FIGURE 13 - Typical Curb Assembly ......................................................................................................................25
FIGURE 14 - No Base Rail - Housekeeping Pad Required to Accommodate Trap Height .....................................26
FIGURE 15 - No Housekeeping Pad - Base Rail Required to Accommodate Trap Height .....................................26
FIGURE 16 - With Base or Base Rail and Housekeeping Pad ............................................................................... 26
FIGURE 17 - Ceiling Suspended AHU on Structural Steel......................................................................................27
FIGURE 18 - Tools Needed to Assemble Shipping Splits .......................................................................................28
FIGURE 19 - Shipping Split Examples....................................................................................................................29
FIGURE 20 - Shipping Split Examples Using Structural Steel Baserails ................................................................ 30
FIGURE 21 - Applying Gasket Square, Neoprene Gasket and Caulk to Raceway Split.........................................30
FIGURE 22 - Typical Come-A-Longs ......................................................................................................................31
FIGURE 23 - Electrical Connector (Not Connected) ...............................................................................................31
FIGURE 24 - Electrical Connectors (Connected)....................................................................................................31
FIGURE 25 - Remove and Reposition Shipping Split Angle ...................................................................................31
FIGURE 26 - Come-A-Long Attached to a Section .................................................................................................32
FIGURE 27 - Bring Shipping Splits Together...........................................................................................................32
FIGURE 28 - Applying Caulk to Seams...................................................................................................................32
FIGURE 29 - Installing Gaskets ..............................................................................................................................33
FIGURE 30 - Corner Connector Hole Plug (P/N 021-19568-000)........................................................................... 33
FIGURE 32 - Use Gasket (P/N 028-11883-010) at Shipping Split ..........................................................................34
FIGURE 31 - Installing Hood with Optional Moisture Eliminators............................................................................34
FIGURE 34 - Assembly of End Channel Shipping Split with an Expanded Cabinet ...............................................35
FIGURE 33 - Use Gasket (P/N 028-11873-010) to Door Frame at Shipping Split ..................................................35
FIGURE 35 - Come-A-Long Attached to a Section .................................................................................................36
FIGURE 36 - Remove Lifting Lugs in Expanded Cabinet........................................................................................36
FIGURE 37 - Electrical Connector (Not Connected) ...............................................................................................36
FIGURE 38 - Electrical Connectors (Connected)....................................................................................................36
FIGURE 39 - Remove and Reposition Shipping Split Angle ...................................................................................37
FIGURE 40 - Bring Shipping Splits Together...........................................................................................................37
FIGURE 41 - Fasten Bottom Lifting Lugs................................................................................................................37
FIGURE 42 - Corner Connector Hole Plug (P/N 021-19568-000)........................................................................... 38
FIGURE 43 - Tiered AHU ........................................................................................................................................38
FIGURE 44 - Second Tier Tie-Down Fastener Pack (P/N 386-03419-000) ............................................................38
FIGURE 45 - Apply Gaskets to Top Panel on Bottom Tier ......................................................................................38
FIGURE 46 - Guide Brackets Together ...................................................................................................................39
FIGURE 47 - Lights Tier Transition Drawing ...........................................................................................................39

Form PA102.20-N1 9
Installation & Assembly Manual │ PACE
Issue Date: 07/03/2018
LIST OF FIGURES (CONT'D)
FIGURE 48 - Assembling the End Channel Shipping Split with Energy Recovery Wheel ...................................... 40
FIGURE 49 - Installing the Direct Coupled Actuator................................................................................................ 41
FIGURE 50 - Installing MZ Damper......................................................................................................................... 42
FIGURE 51 - Damper Shaft Extension Kit (P/N 026-33715-002)............................................................................ 43
FIGURE 52 - Second Tier Tie-Down Fastener Pack (P/N 386-03419-000) ............................................................ 43
FIGURE 53 - Bottom Raceway Shipping Split Fastener Pack (P/N 386-03418-000).............................................. 43
FIGURE 54 - Base Rail Shipping Split Fastener Pack (P/N 386-03417-000) ......................................................... 44
FIGURE 55 - Top Raceway Bracket Assembled (P/N 386-04747-000)................................................................... 44
FIGURE 56 - Neoprene Gasket - 1/4 In. X 2 In. X 25 Ft (P/N 028-15954-010)....................................................... 44
FIGURE 57 - Neoprene Gray Gasket - 1/4 In X 3/4 In X 35 Ft (P/N 028-11873-010) for Door............................... 44
FIGURE 58 - Phillips Hex Head Screw (P/N 021-32268-011) For Indoor Unit Seam Cap...................................... 44
FIGURE 59 - Hex Head Screw For Outdoor Roof Seam Cap, Pipe Chase, and Rain Hood - 1/4 In-14 X 1 In (P/N
021-30530-052) ................................................................................................................................. 44
FIGURE 60 - Butyl Tape - 3/16 In X 3/4 In X 40 Ft (P/N 013E-03327-010)............................................................. 44
FIGURE 61 - Polyurethane caulk (Grey: P/N 021-19568-000; Champagne: P/N 013-03317-040) For Pipe Chase
Only ................................................................................................................................................... 45
FIGURE 62 - Roof Seam Cap (Assembled)............................................................................................................ 45
FIGURE 63 - Pipe Chase, Trim Angle, and Cover................................................................................................... 45
FIGURE 64 - Hood .................................................................................................................................................. 45
FIGURE 65 - Damper Shaft Extension Kit (P/N 026-33715-002)............................................................................ 46
FIGURE 66 - Corner Connector Hole Plug (P/N 021-19568-000) (8) ..................................................................... 46
FIGURE 67 - Touch-Up Spray - 12 Oz. (P/N 013-03322-000) ................................................................................ 46
FIGURE 68 - Shipping Split Corner Gasket - 3.5 X 3. 5 (P/N 028-11883-010) ...................................................... 46
FIGURE 69 - Spare Fan Belt................................................................................................................................... 46
FIGURE 70 - Conduit (P/N 025-39024-001) and SJO Cord (P/N 025-35746-001)................................................. 46
FIGURE 71 - Typical Filter Types............................................................................................................................ 47
FIGURE 72 - Filter Latches ..................................................................................................................................... 48
FIGURE 73 - Correctly Installed Latch Pin (P/N 026-35788-702) ........................................................................... 50
FIGURE 74 - Fully Installed Filter............................................................................................................................ 51
FIGURE 75 - Correctly Installed Latch Pin (P/N 026-35788-604) ........................................................................... 51
FIGURE 76 - Place End of Latch Over Filter Frame ............................................................................................... 51
FIGURE 77 - Correctly Installed Cartridge Filter ..................................................................................................... 52
FIGURE 78 - Correctly Installed Latch Pin (P/N 026-35788-604) ........................................................................... 52
FIGURE 79 - Correctly Installed Cartridge with Pleats............................................................................................ 52
FIGURE 80 - Correct use of Knockouts .................................................................................................................. 53
FIGURE 81 - Correct Latchout/Knockout Conguration.......................................................................................... 53
FIGURE 82 - Frame with Four Latches Installed on the Sides................................................................................ 53
FIGURE 83 - Spring Latch Pulled and Fastened in Filter Hole ............................................................................... 53
FIGURE 84 - Correct Latchout/Knockout Conguration (P/N 026-35788-612)....................................................... 54
FIGURE 85 - Spring Latch Pulled and Fastened in Filter Hole ............................................................................... 54
FIGURE 86 - Installing Pre-Filter Latch................................................................................................................... 54
FIGURE 87 - Position Pre-Filter in Front of Final Filter ........................................................................................... 55
FIGURE 88 - Spring End of Latch ........................................................................................................................... 55
FIGURE 89 - Completed Assembly......................................................................................................................... 55
FIGURE 90 - Installation of Koch HEPA Filters ....................................................................................................... 56
FIGURE 91 - Koch HF............................................................................................................................................. 57
FIGURE 92 - Hepa Filter (Cross Section) ............................................................................................................... 57

PACE │Installation & Assembly Manual
Issue Date: 07/03/2018 10 Form PA102.20-N1
LIST OF FIGURES (CONT'D)
FIGURE 94 - Installing Hepa Filter.......................................................................................................................... 58
FIGURE 93 - Visual Control Filter Clamps .............................................................................................................. 58
FIGURE 95 - Installing Welded Bevel Seal Filter .................................................................................................... 59
FIGURE 96 - Supply Fan Restraint ......................................................................................................................... 60
FIGURE 97 - Thrust Restraint Assembly................................................................................................................. 61
FIGURE 98 - Plenum Fan Thrust Restraint............................................................................................................. 61
FIGURE 99 - Alignment Using Straight Edge.......................................................................................................... 63
FIGURE 100 - Alignment Using String .................................................................................................................... 63
FIGURE 101 - Sheave Angular Misalignment ......................................................................................................... 64
FIGURE 102 - Motor Base Lowered........................................................................................................................ 64
FIGURE 103 - Sheave Angular Alignment............................................................................................................... 64
FIGURE 104 - Sheave Angular Misalignment ......................................................................................................... 64
FIGURE 105 - V-Max Grid Lamps........................................................................................................................... 65
FIGURE 106 - Installing V-Mod Lamp ..................................................................................................................... 65
FIGURE 107 - Installing V-Max Grid Lamps............................................................................................................ 65
FIGURE 108 - UV Control Panel Wiring (8 amps)................................................................................................... 67
FIGURE 109 - UV Control Panel Wiring (Greater Than 8 Amps)............................................................................ 68
FIGURE 110 - High and Low Connections for an in Fan Air Monitoring System..................................................... 70
FIGURE 111 - High and Low Connections and Associated Tubing for Fan Mounted Air Monitoring System ......... 70
FIGURE 112 - Port Locations for Fan Mounted Air Monitoring System................................................................... 70
FIGURE 113 - Counterbalance Locked Into Place for Shipping.............................................................................. 71
FIGURE 114 - Counterbalance Unlocked for Start-Up............................................................................................ 71
FIGURE 117 - Install Pipe Chase Base Rail to AHU Base Rail............................................................................... 72
FIGURE 115 - Install Gasket Under Roof Overhang............................................................................................... 72
FIGURE 116 - Apply Gasket to Pipe Chase ............................................................................................................ 72
FIGURE 118 - Install Flanges.................................................................................................................................. 72
FIGURE 119 - Apply Caulk to Base Rail.................................................................................................................. 73
FIGURE 120 - Apply Caulk Between Pipe Chase and AHU.................................................................................... 73
FIGURE 121 - Install Pipe Chase to Roof ............................................................................................................... 73
FIGURE 122 - Install Cover Angle........................................................................................................................... 74
FIGURE 123 - Position Cover Angle Properly......................................................................................................... 74
FIGURE 124 - Properly Install Screws .................................................................................................................... 74
FIGURE 125 - Apply Base Rail Cover..................................................................................................................... 74
FIGURE 126 - Gas Furnace Fuel Venting System.................................................................................................. 75
FIGURE 127 - Gas Furnace Condensate Drain Trap.............................................................................................. 76
FIGURE 128 - Single Point Power Connection ....................................................................................................... 77
FIGURE 131 - Access Electrical Box....................................................................................................................... 78
FIGURE 129 - Typical Motor Data/Name Plate....................................................................................................... 78
FIGURE 130 - Another Typical Motor Data/Name Plate.......................................................................................... 78
FIGURE 132 - Typical Power Wiring of Energy Recovery Wheel ........................................................................... 78
FIGURE 133 - Gas Burner Component Locations .................................................................................................. 79
FIGURE 134 - Main Power and Control Panel with Cover Open ............................................................................ 79
FIGURE 135 - Typical Electrical Heat Control Panel Interior Wiring and Components........................................... 80
FIGURE 136 - Typical Field and Power Connections.............................................................................................. 80
FIGURE 137 - Pressure Probe Direction................................................................................................................. 82
FIGURE 138 - Air Flow Switch Connections ........................................................................................................... 82
FIGURE 139 - Layout of Typical Humidier Panel .................................................................................................. 84