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Reznor RDF Series Operating/Technical Manual
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Reznor RDF Series Operating/Technical Manual

Reznor RDF Series Operating/Technical Manual

Indoor our outdoor, gas, direct-fired, makeup air/heating system
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INDOOR OR OUTDOOR, GAS,
DIRECT-FIRED, MAKEUP
AIR/HEATING SYSTEMS
®
NOTE:
General Description
®
MFG P/N 148384,
Page 1

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Summary of Contents for Reznor RDF Series

  • Page 1 INDOOR OR OUTDOOR, GAS, DIRECT-FIRED, MAKEUP AIR/HEATING SYSTEMS ® NOTE: General Description ® MFG P/N 148384, Page 1...

  • Page 2: Warranty

    General Description (cont'd) Do not install must 1. Installation Codes/ Requirements 2. Warranty 3. Technical Data Model Sizes 1-20 1-40 1-50 1-65 2-80 2-120 3-180 3-260 110-A 112-A 115-A 118-A 119-A 120-A 122-A 130-A 1500 1500 2500 3000 Maximum Capacity (MBH) 1, 000 - 2,000 - 3,000 - 4,000 - 6,000 - 9,000 -...

  • Page 3: System Dimensions

    4. System Dimensions Location Key: Dimensions (inches) Model Sizes 1-20, 1-40, 1-50, 1-65, 110, 112, 115, 118 88-3/8 37-1/8 44-1/4 85-1/4 45-1/2 7-5/8 5-3/8 18-7/8 12-7/8 8-1/4 2-80, 2-120, 119, 120 88-1/8 48-3/4 68-1/4 85-1/4 69-7/16 16-1/8 27-1/4 6-5/8 27-1/4 14-7/8 16-3/4 27-1/2 3-180, 3-260, 122, 130...
  • Page 4 5. Accessories - Technical Data and Dimensions Size 1-20, 1-40, 2-80, 3-180, S izes No. of Filter Size Approximate Weight 1-50, 1-65, 2-120, 3-260, Filters AS6, AW3 AS7, AW6 AS2 AS6 AS7 AW3 AW6 110, 112, 119, 122, 1-20, 1-40, 1- lbs 225 250 270 100 115, 118 50, 1-65, 110,...
  • Page 5 Lag Screw 2 x 6 Wood Nailer Screws 1-1/2 x 3 lb 16” Fiberglass (406mm) Flashed by the installer (flashing must be under lip of curb) 4” (102mm) NOTE: Roof Curb Dimensions - inches (mm) S izes 1-20, 1-40, 1-50, 1-65, 2-80, 2-120, 3-180, 3-260, 110, 112, 115, 118...
  • Page 6 6. Uncrating Gas Controls Mounting on Field-Supplied Supports Air Controls Mounting on a Roof Curb 7. Clearances - All Sizes Clearances - inches (mm) S ide Bottom Top Control Opposite S ide Controls Combustibles Non-Combustibles Width 3 (76) 3 (76) 3 (76) 0 - Curb of unit...
  • Page 7 10. Distribution of Makeup Air Disconnect Switch Convenience Outlet Option Sizing and Installation of Distribution Ductwork Control Wiring Installing Ducts Control Wiring Enclosure o Duct Supports On Sizes 1-20, 1-40, 1-50, 1-65, 2-80, 2-120, 110, 112, 115, 118, and o Duct Connections On Sizes 3-180, 3-260, Qty Description 122 and 130...
  • Page 8 11. Electrical Supply, Connections, and Controls (cont'd) Control Wiring Enclosure (cont'd) Control Wiring - Maximum Lengths Total Wire Distance from Unit Wire Volts Length to Control Gauge 150 ft (45.7M ) 75 ft (22.9M ) 250 ft (76.2M ) 125 ft (38.1M ) 350 ft (106.7M ) 175 ft (53.3M ) Figure 7 - Technical Data of the Remote Console (Variations depend on options selected;...
  • Page 9 positive pressure tube so Pressure Null Switch (applies to systems with Air Control Option that it will sense pressure at the inlet side AR20 or AR23) negative pressure tube so that it will sense the pressure at the blower side o After the system is operating, the filter switch must be manu- ally set.

  • Page 10: Gas Piping And Pressures

    12. Gas Piping and Pressures Gas Pipe Connections at the Unit Supply Pressure Gas Supply Pressure Requirements Manifold Pressure Natural Minimum Maximum Propane Minimum Maximum Optional Gas Pressure Switches Manifold Pressure Drops and Minimum Supply Pressure (“ w.c.) Gas Vent Piping for Optional Vent Valve Pilot Supply Pressure Page 10...
  • Page 11 Gas Supply Piping Capacity of Piping Cubic Feet per Hour based on 0.3" w.c. Pressure Drop Specific Gravity for Natural Gas -- 0.6 (Natural Gas -- 1000 BTU/Cubic Ft) Specific Gravity for Propane Gas -- 1.6 (Propane Gas -- 2550 BTU/Cubic Ft) Length Diameter of Pipe 1"...
  • Page 12 14. Check-Test Start KEY: Page 12...
  • Page 13 Check/Test/Startup Procedures (Follow Steps in Sequence) ¡ Before Startup o 1. Check to be sure that all field-installed accessories are installed. o 2. Check all field-installed wiring. o 3. Check all ductwork for obstructions; open all diffusers. o 4. Turn the three-position switch or optional summer/off/winter remote console switch to OFF position. To prevent someone from turning the system on, tape the switch leaving a note that it should be left in the OFF position.
  • Page 14 14. Check-Test Start (cont'd) Startup (cont'd) 2. Measure (1) burner differential air pressure on the slope gauge and (2) the negative pressure created in the gas line by operation of the blower. With the blower operating, differential air should read between -.5" and -.65" w.c. If the slope gauge reading is not within the limits of these numbers, do one of the following: greater than less than...
  • Page 15 DETERMINE the type of gas control system from the unit rating plate: IMPORTANT NOTE: The instructions in 3A are designed for systems manufactured after 3/96 equipped with hot surface ignition. If the system being started is equipped with a spark pilot and a flame rectification or ultraviolet flame sensor, follow instructions in 3B.
  • Page 16 14. Check-Test Start (cont'd) Startup (cont'd) 4. Check pilot pressure (hot surface ignition units only) -- 5. If, with the blower and burner operating, the main gas pressure measured in Step 3 does not correspond with what is stated on the rating plate, check the main burner gas differential pressure. Factor 1 Factor 2 EXAMPLE:...
  • Page 17 Turn ON the disconnect switch. The system is now operational from the control switch, the remote console, or other type of optional automatic control. CAUTION: Burner will not operate if ambient air temperature is above setpoint of outside air control (factory setting is 60°F).
  • Page 18 Field Installed Accessories 15. Optional Screened Air Hood for outdoor Units (Options AS2, AS6, AS7) and Filter Sections for Indoor Units (Options AW3, AW6) Item Options Description For Sizes Installation Requirements Outdoor Screened Air Hood with Factory Assembled; Field Installed - AS2, AS6, AS7 1-20, 1-40, 1-50, 1-65, 2-80, 2-120, and without filters...
  • Page 19 Installation Instructions for Item 2 on page 18 Option AS2 Pkg P/N 71150 Option AS6 Pkg P/N 71152 Option AS7 Pkg P/N 72627 Components Option AS2 Option AS6 Option AS7 Top of Inlet Hood Cabinet Section 91575 91575 91575 Top of Inlet Hood 91576 91576 91576...
  • Page 20 Assembly and Installation Instructions (cont'd) Step 1D - Attach Cabinet Section To Corner Posts and Intermediate Posts (Options AS2, AS6, and AS7) Step 1 B - Sup-assemble Top and Bottom Filter Channels and Filter Blockoff Plates (AS6 & AS7) Step 1C - Assemble Outer Side of Filter Rack (Options AS6 and AS7 only) Step 1E - Attach Cabinet Section Bottom For 1"...
  • Page 21 Step 3 - Attach Filter Cabinet to System Step 2A - Sub-assemble Support Legs Step 2B - Install Support Legs Step 4A - Attach Hood Sides Page 21...
  • Page 22 Assembly and Installation Instructions (cont'd) Step 4D - Install Center Louver Supports Step 4B - Attach Hood Section Top Step 4C - Install Top Clamp Step 4E - Install Louvers Page 22...
  • Page 23 Page 23...
  • Page 24 ® ©2002 Thomas & Betts Corporation, All rights reserved. Printed in the U.S.A. MANUFACTURER OF HEATING, COOLING, AND VENTILATING SYSTEMS Trademark Note: Reznor is registered in the United States and other countries. ® (800) 695-1901; www.ReznorOnLine.com 1/02 Form 440 (Version B)