Johnson Controls RL18 Manuals

Manuals and User Guides for Johnson Controls RL18. We have 1 Johnson Controls RL18 manual available for free PDF download: Installation Manual

Johnson Controls RL18 Installation Manual (42 pages)

Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx)

Brand: Johnson Controls | Category: Furnace | Size: 2 MB

Table of Contents
3
General
5
Certification
5
Safety
5
Specific Safety Rules and Precautions
6
Safety Requirements
7
Combustion Air Quality (List of Contaminants)
7
Codes and Standards
8
For Furnaces Installed in the Commonwealth of Massachusetts Only
8
Inspection
9
Ductwork
10
Ductwork General Information
10
Duct Flanges
11
Ductwork Installation and Supply Plenum Connection - Upflow/Horizontal
11
Floor Base and Ductwork Installation - Downflow
11
Coil Installation
12
Downflow Duct Connectors
13
Residential and Modular Home Upflow Return Plenum Connection
13
Side Return Application
13
Bottom Return and Attic Installations
13
Downflow Application
13
Horizontal Application
13
Attic Installation
13
Suspended Furnace or Crawl Space Installation
14
Filters
16
Filter Installation
16
Side Return
16
Gas Piping
17
Gas Safety
17
Gas Piping Installation
17
Gas Orifice Conversion for Propane (LP)
18
High Altitude Gas Orifice Conversion
18
High Altitude Pressure Switch Conversion
19
Electric Power
19
Electric Power Connections
19
Supply Voltage Connections
20
Low Voltage Control Wiring Connections
20
Accessory Connections
21
Electronic Air Cleaner Connection
21
Humidifier Connection
21
Twinning and Staging
21
Furnace Control Twinning Wiring
21
Twinning Duct System
22
Vent System
22
Vent Connections
22
Category 1 - 450°F Maximum Vent Temperature
23
Venting
23
Venting into an Existing Chimney
23
Fan-Assisted Combustion System
23
Ambient Combustion Air Supply
23
Dampers, Louvers and Grilles (Canada Only)
25
Ventilated Combustion Air
26
Vent and Supply (Outside) Air Safety Check Procedure
26
Start-Up and Adjustments
27
Removing Nox Screens (Lo-Nox Models Only)
27
Gas Piping Leak Check
28
Ignition System Sequence
28
Calculating the Furnace Input (Natural Gas)
28
Adjusting the Manifold Gas Pressure and Input Rate
30
Airflow Settings
31
Safety Controls
34
Control Circuit Fuse
34
Blower Door Safety Switch
34
Rollout Switch Controls
34
Pressure Switches
34
Limit Controls
35
Sequence of Operation
35
Troubleshooting
35
Furnace Control Diagnostics
36
Diagnostic Fault Code Storage and Retrieval
37
Replacement Parts List
38
Replacement Part Contact Information
38
Wiring Diagram
39
Start-Up Sheet
41

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