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FIGURE 24

DIRECT VENT TERMINAL CLEARANCES

Natural Gas and Propane Installation Code

National Fuel Gas Code

Canadian Installations

US Installations

Canadian Installations

US Installations

Main Page

Installation Instructions1
Table of Contents2
Safety Information3
Installation Check List5
General Information6
Important Information about Efficiency and Indoor Air Quality8
Location Requirements and Considerations9
- Clearance-Accessibility10
- Site Selection11
California's Proposition 65 Requires DIMENSIONS and CLEARANCE to COMBUSTIBLES12
- Upflow Models12
- Downflow Models13
- Horizontal Models14
- Ducting15
- Supply Air Sensor17
Venting and Combustion Air Piping18
- Installation with Pre-Existing Vent Systems18
- Cementing Joints19
- Joining Pipe and Fittings19
Non-Direct Vent Pipe Installation20
Installation Guidelines23
Direct Vent Pipe Installation24
- Concentric Terminations26
- Horizontal Terminations28
- Location Requirements30
Condensate Drain/Optional Neutralizer34
Converting Downflow/Horizontal Models to Horizontal Configuration36
Gas Supply and Piping39
- Gas Valve40
- Lp Conversion42
- Setting Gas Pressure43
Electrical Wiring45
Accessories47
- Electronic Air Cleaner47
- Humidification and Dehumidification47
- Other Accessories49
- Typical Wiring Accessories for Communicating Residential Systems49
High Altitude Installations51
- Lp Gas at High Altitude Elevations53
- Zoning Systems54
- Installation with Non-Communicating, High-Efficiency Premium Cooling Systems54
Integrated Furnace Control55
- Connectors and Components of Furnace Control55
- Special Configuration - Comm T-Stat and Non-Comm Condenser56
- Memory Card60
  - Rules for Writing, Distribution and Arbitration of Multiple Copies of Furnace Shared Data for Communicating-Capable Furnaces60
- Replacing the Furnace Control63
- Dipswitches66
  - Furnace Operation Using Non-Communicating Modulating, Modulating and Two-Stage T-Stats69
- Communicating Systems73
- Furnace User Menus75
List Are Found in Our Daily Lives. most DIPSWITCH80
- Dual-Fuel Operation80
- User Menu (Non-Communicating Systems)80
Start-Up Procedures81
- Dehumidification Mode82
- Sequence of Operation83
- Setting Input Rate83
- To Shut down83
Maintenance84
- Annual Inspection86
- Replacement Parts86
- System Operation Information86
- Wiring Diagram86
- Modulating Integrated Furnace Control87
Troubleshooting Chart87
Normal Operating Codes (Table 20)89
Furnace Fault Codes with Descriptions and Solutions (Table 21)90
Fault Codes91
Wire Diagram - Stepper / Servo Modulating Valve (Fuel Codes Ha or Hb)106
Wire Diagram - Solenoid Controlled Modulating Valve (Fuel Codes Hg or Hh)107
- Thermostats108
Non-Communicating Thermostats108
- Thermostat Wiring (with Wiring Diagrams)109
Applications112
- Troubleshooting121
- Communicating Thermostats122

Rheem RGFE - Page 31

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