Rapid Engineering 2000 Series

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SECTION 15: GAS PIPING

FIGURE 21: XL-Compliant Manifold (2005 - 2030)

Alternate

Inlet

By Others

Manual Gas

High Gas Pressure Regulator (Optional)

Valve (Pilot)

Drip

Leg

Modulating Valve With

Pressure Regulator

Manual Gas

Valve (Burner)

High Gas Pressure Switch

Burner

LOW GAS

PRESSURE

SWITCH

Low Gas Pressure Switch

Pilot

Regulator

Pilot

Solenoid

Off Valve

With Actuator

Block Valve

With Actuator

Safety Shut

Vent

Valve

Vent to Atmosphere

Manual Gas

Valve (Main)

Union

(By Others)

NOTE: Vent valves must be piped to the atmosphere outside the structure and in accordance with

applicable codes.

Main Page

Table of Contents5
SECTION 1: Air Handler Safety7
Description of Operation7
Inspection and Setup7
Safety Labels and Their Placement8
California Proposition 658
SECTION 2: Installer Responsibility9
Wall Tag9
Corrosive Chemicals9
National Standards and Applicable Codes10
Required Equipment10
SECTION 3: Critical Considerations11
Required Clearances to Combustibles11
Purge of Supply Duct12
Hardware12
SECTION 4: National Standards and Applicable Codes13
Gas Codes13
Installation Codes13
Aircraft Hangars13
Parking Structures and Repair Garages13
Electrical13
Venting13
High Altitude13
SECTION 5: Specifications14
SECTION 6: Lifting an Air Handler18
Lifting an Air Handler18
SECTION 7: Roof20
Roof Curb Assembly and Installation20
Air Handler Mounting to Roof Curb22
SECTION 8: Legs for Horizontal Mounting23
Leg Mounting23
Leg Mounting - Horizontal Air Handler23
SECTION 9: Upright Installation24
Upright Leg Assembly24
Upright Installation27
Attaching Air Handler27
SECTION 10: Filter Section28
Filter Section Support Assembly Installation (2010 - 2030)28
Filter Section Installation - Horizontal Air Handlers29
Filter Section Installation - Upright Air Handlers29
SECTION 11: Inlet Hood30
Inlet Hood Assembly31
Inlet Hoods with Filter Rack Assembly32
SECTION 12: Dampers39
Discharge Damper40
Inlet Damper40
SECTION 13: Discharge Heads and Splash Plates41
Three-Way Discharge Head Installation41
Splash Plate Installation42
SECTION 14: Duct Considerations44
Inlet Duct Work44
Return Duct Work44
Discharge Duct Work44
SECTION 15: Gas Piping45
Gas Manifolds45
Gas Piping and Pressures45
Gas Manifold Venting45
Gas Piping48
Pressure Test Ports48
Line Pressure Test - Leak Testing48
SECTION 16: Electrical49
Disconnect Fuse Sizing50
Wiring and Electrical Connections50
Remote Panel50
Motor Current Draw50
Control Current Draw51
Safety Systems51
Interlocks54
Control Options54
SECTION 17: Sequence of Operation56
Air Handler Configuration56
HVAC Remote Panels and Panel Options58
Infinitypro60
Basic Air Handler Sequence of Operation60
SECTION 18: Direct Fired Burner64
Direct Fired Burner Ignition65
Direct Fired Burner Flame Proving (Flame Rod)66
SECTION 19: Direct Fired Process Air Heaters67
Direct Fired Process Air Heater Models68
Installer's Responsibilities68
Installer's Responsibility for Process Heaters Connected to Paint Booths69
SECTION 20: Start-Up Procedures70
Installation of Recirculating Air Handler71
Mechanical71
Electrical72
Airflow72
Gas Piping and Initial Pressure Settings73
Safety Shut off Valve Check75
Temperature Control System Calibration75
SECTION 21: Maintenance78
General79
Unit Exterior79
Blower Section79
Manifold and Controls82
Burner82
Optional Equipment83
SECTION 22: Replacement Parts84
SECTION 23: Troubleshooting88
Initial Checks89
Motor and Blower89
Burner90
Temperature Controls91
A1014 Amplifier - Field Checklist92
A44 Amplifier - Field Service Checklist94
Section 24: Rapid96
2000-Series Start-Up Procedures96
SECTION 25: the RAPID98
2000-Series Warranty98

Rapid Engineering 2000 Series - Page 47

Table of Contents