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Related Manuals for Johnson Controls RL18
Summary of Contents for Johnson Controls RL18
- Page 1 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) York International Corp. 5005 York Drive 6100760-UIM-B-0323 Norman, OK 73069 Rev B www.johnsoncontrols.com 2023-03-23 Johnson Controls Ducted Systems...
- Page 2 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 3: Table Of Contents
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 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 4 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 5: General
It is also used to alert against unsafe practices and and warranty information must be given to the user or hazards involving only property damage. left near the Indoor Unit. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 6: Specific Safety Rules And Precautions
When installing in a non-HUD-Approved Modular the furnace space as specified in this manual. Home or building constructed on-site, do not supply combustion air from occupied spaces. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 7: Safety Requirements
Install the Furnace so that the electrical components • Cleaning solvents such as perchloroethylene are protected from water. • De-icing salts or chemicals Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 8: Codes And Standards
United States: Section 5.3 of the NFGC, air for Combustion and Ventilation • Canada: Part 7 of NSCNGPIC, Venting Systems and Air Supply for Appliances Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 9: Inspection
(46 cm) above the floor and the furnace is in a location damage during transit. If damage is evident, note the that avoids physical damage by vehicles. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 10: Ductwork
When using the furnace with an indoor coil, install the coil parallel with or on the supply air side of the furnace Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 11: Duct Flanges
Figure 3: Floor base and ductwork installation - If not using the flanges, they must remain in the down downflow position as shipped. Figure 1: Duct attachment Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 12: Coil Installation
Mount the indoor coil on the supply side of the furnace as shown in Figure 5 to Figure 8 . Refer to the installation instructions provided with each indoor coil. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 13: Downflow Duct Connectors
Return air may enter the furnace through the sides or bottom depending on the type of application. Do not connect return air into the rear panel of the unit. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 14: Suspended Furnace Or Crawl Space Installation
Do not use the top return bend of the heat exchangers as lifting points, as the tubes may shift out of position, or out of their location brackets or baffles. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 15 40.1 120 (35.1) 2000 (56.6) 53.3 19 7/8 50.5 15.8 40.1 130 (38.1) 2000 (56.6) 24.5 62.2 23 3/8 59.4 17.5 44.4 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 16: Filters
Use straps and supports as required to support the weight of the external filter box. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 17: Gas Piping
1/2 psig (3.5 kPa). Figure 15: Supply gas pipe arrangement Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 18: Gas Orifice Conversion For Propane (Lp)
1000 37.3 0.87 0.80 0.73 1050 39.1 0.87 0.73 0.67 1100 41.0 0.80 0.66 0.61 2500 (LP) 93.2 (LP) 2.44 2.03 1.86 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 19: High Altitude Pressure Switch Conversion
19–36 11.5 11 x 11 13.7 Note: • Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE test procedures. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 20: Supply Voltage Connections
Reposition on the opposite side of the furnace and fasten using the holes provided. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 21: Accessory Connections
Failure to do this may result in control voltage polarity issues. See the Rapid Red Flash fault code in Furnace control diagnostics. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 22: Twinning Duct System
The mixing device must be installed before any ducts that supply air to occupied spaces. Twinning causes both indoor fans to operate simultaneously. If a Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 23: Category 1 - 450°F Maximum Vent Temperature
Important: Do not vent this furnace into an unlined masonry chimney or concrete chimney. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 24 The following must be considered to obtain proper air for combustion and ventilation in confined spaces. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 25: Dampers, Louvers And Grilles (Canada Only)
(387 cm 80,000 80 in. (516 cm 100,000 100 in. (645 cm 120,000 120 in. (742 cm 130,000 130 in. (838 cm Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 26: Ventilated Combustion Air
1/4 in./ft (20.8 mm/m) from the furnace to the vent terminal. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 27: Start-Up And Adjustments
Replace all components in reverse order. follow the appropriate tables in Appendix G of the Reconnect all wiring. above codes or for this appliance. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 28: Gas Piping Leak Check
If the clocked rate does not match the input rate from the unit nameplate, follow the steps in Adjusting the manifold gas pressure and input rate. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 29 2 cu ft 5 cu ft 1 cu ft 2 cu ft 5 cu ft 1800 1636 1500 1385 1286 1200 1125 1059 1000 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 30: Adjusting The Manifold Gas Pressure And Input Rate
13.0 in. W.C. (3.24 kPa) kPa) Turn on the gas and electrical supplies and follow the operating instructions to place the unit back in operation. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 31: Airflow Settings
Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 32 Increase the blower speed to decrease the temperature rise. Decrease the blower speed to increase the temperature rise. Figure 29: Furnace control board Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
- Page 33 1600 1575 1500 1475 1425 1375 1325 Medium Low 1475 1425 1375 1325 1275 1225 1150 1075 1275 1225 1150 1100 1025 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 34: Safety Controls
This switch interrupts all power at the unit when the panel covering the blower compartment is removed. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 35: Limit Controls
See Figure 29. The heating cycle is now complete and ready for the start of the next heating cycle. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 36: Furnace Control Diagnostics
The control enters a hard lockout and power has to be cycled off and on to reset the control after the problem has been corrected. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 37: Diagnostic Fault Code Storage And Retrieval
3.7 microamps DC (μa) Low flame signal warning starts at 1.5 microamps. Low flame signal control lockout point is 0.1 microamps DC (μa) Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 38: Replacement Parts List
Click on the Brand Links button Click on the Customer Service button Third-Party Trademarks Notice: For information about third-party trademarks, refer to the relevant company websites. Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... -
Page 39: Wiring Diagram
Wiring diagram Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 40 Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems...
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Page 41: Start-Up Sheet
Start-up sheet Installation Manual: RL18 Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard Low NOx) Johnson Controls Ducted Systems... - Page 42 Subject to change without notice. Published in U.S.A. Copyright © 2023 by Johnson Controls. All rights reserved. www.johnsoncontrols.com Johnson Controls Ducted Systems...