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Summary of Contents for Rinnai EX1 7 DT
- Page 1 MODELS: EX1 7 DT (RHFE-436FTA) EX22DT (RHFE-570FTA) Direct Vent Wall Furnace Installation and Operation Manual RHF570-1750(02)
- Page 2 fied kit is used. Copyright 2022 Rinnai America Corporation. Rinnai® is a registered trademark of Rinnai Corporation used under license by Rinnai America Corporation. Rinnai America Corporation continually updates materials, and as such, content is subject to change without notice.
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Page 3: Table Of Contents
Contents 1. Welcome ............................4 1.1 To The Installer ........................4 1.2 To The Consumer ......................4 1.3 Acronyms and Abbreviations ..................... 4 2. Safety ............................5 2.1 Safety Symbols ........................5 2.2 Safety Precautions ......................5 3. About the Direct Vent Furnace ....................7 3.1 Main Components ...................... -
Page 4: Welcome
1. Welcome Thank you for purchasing a Rinnai Direct 1.2 To The Consumer Vent Furnace. Before installing and operating the direct vent furnace, be sure to read these instructions completely and carefully to You must read the entire manual to properly familiarize yourself with the direct vent operate the direct vent furnace. -
Page 5: Safety
2. Safety 2. 1 Safety Symbols 2.2 Safety Precautions This manual contains the following important WARNING safety symbols. Always read and obey all safety messages. Repairs should be performed by a trained and qualified professional. Keep the area around the furnace Safety alert symbol. - Page 6 CAUTION WARNING When an existing Category I heater is removed or Do not block the warm air discharge. Do not replaced, the original venting system may no allow anyone to sleep directly in front of the longer be sized to properly vent the attached furnace.
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Page 7: About The Direct Vent Furnace
3. About the Direct Vent Furnace Topics in this section Main Components Specifications Dimensions 3. 1 Main Components Front View Back View ❻ ❶ ❼ ❺ ⓬ ⓫ ❽ ❷ ❿ ❸ ❾ ❹ Figure 2: Back View Figure 1: Front View ❻... -
Page 8: Specifications
The efficiency rating of this furnace is a product thermal efficiency rating determined under continuous operating conditions and was determined independently of any installed system. Rinnai products are continually being updated and improved; therefore, specifications are subject to change without prior notice. -
Page 9: Dimensions
3.3 Dimensions IMPORTANT A full size wall template is provided on the furnace carton box. Do not discard until installation is complete. Measurements: inches (mm) Front View (Including Sample Wall Template Side View Located on Furnace Carton Box) Wall Bracket Center of Furnace Wall Opening Position... -
Page 10: Installation
Standard, Title 24 CFR, Part 3280, or, when such a installation of direct vent furnaces. Training for standard is not applicable, the standard for Rinnai Direct Vent Furnaces is accessible online at Manufactured Home Installations, ANSI Z225.1, or rinnaipro.myabsorb.com. the standard for Gas Equipped Recreational Vehicles and Mobile Housing, CSA Z240.4. -
Page 11: What You Will Need
4.2 What You Will Need 4.2. 1 Items Included Unpack the Rinnai Direct Vent Furnace package and verify the following contents are included. If any items are damaged or missing, contact your local dealer/distributor or call Rinnai Customer Care at 1-800-621-9419. -
Page 12: Choose An Installation Location
4.3 Choose an 4.2.2 Items Needed (Field-Supplied) Installation Location Pipe Wrenches (x2) When selecting an installation location, you Adjustable Pliers must ensure that all direct vent furnace and venting clearances will be met and that the vent Screwdrivers (x2) length will be within required limits. - Page 13 4.3.2 Clearances Flue Terminal Clearances Clearance in Ref. A also applies to anticipated snow line AIR SUPPLY INLET VENT TERMINAL AREA WHERE TERMINAL IS NOT PERMITTTED Figure 5: Flue Terminal Clearances Table 5: Clearances Canadian Installations US Installations Description Clearance above grade, veranda, porch, deck, or balcony 12 inches (30 cm) 12 inches (30 cm) Clearance to window or door that may be opened...
- Page 14 40 in. (1 m) from the front, and the area shown above the furnace in the figure to the left. Rinnai recommends 10 in. (254 mm) clearance from the top and on both sides for servicing. Figure 7: Service Clearances...
- Page 15 4.3.3 Installation Location Checklist Use this checklist to ensure you have selected the correct location for the direct vent furnace. The furnace is not exposed to corrosive compounds in the air. The furnace location complies with the required clearances. ...
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Page 16: Installation Steps
The termination cannot be vertical. This furnace can only be used with one of the five types of Rinnai flue kits. The flue kits and their dimensions are listed in section “4.2.1 Items Included.” Refer to “Flue Terminal Clearances” in Figure 10 section “4.3.2 Clearances.”... - Page 17 3. Install the Sleeve. Attach the sleeve to the inside wall using 3 screws arranging the flange so that the marking “TOP” is at the top. The flange is offset 2° to allow the condensate drain to the outside. Apply silicone sealing evenly around the perimeter of the outside sleeve to avoid water intrusion. Sleeve should extend 3/16 - 3/8 in (5-10 mm) Outdoor...
- Page 18 5. Lock the ties. Pulling hard on the left and right hand ties, clip the ties over the notches inside the sleeve. You should be able to pull the ties 2 or 3 notches past the starting point. Cut the ties, leaving about 1 1/4 inch (30 mm) past the notch.
- Page 19 4.4.3 Install the Optional Extension Kit Extension kits are available to extend the exhaust line and air intake hose between the manifold and direct vent furnace. Follow the steps in this section if the optional extension kit was purchased for your Direct Vent Furnace model.
- Page 20 6. Vent extensions must not be concealed per NFPA 54 and must be accessible allowing inspection and repair. Decorative covers are available from Rinnai. 7. Clearances: Exhaust pipe to combustibles: 1 in. (25.4 mm) ...
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Page 21: Figure 18
Incorrect Configurations NOT CORRECT Too many bends (limit is 3) Air intake hose is above exhaust pipe. Figure 17 Slope horizontal CORRECT NOT CORRECT sections 3° downward 3° 90° Elbow Up Configuration Exhaust Exhaust Intake Intake Figure 18 EX17DT and EX22DT Installation and Operation Manual... -
Page 22: Exhaust Pipe (Adjustable) 1
Instructions: CAUTION Pipe stopper B Female end Male end Use the pipe stoppers, connectors, clamps, and screws according to these instructions in order to ensure no leakage of exhaust gases. Pipe stopper A 1. Install the Clamps: Both the exhaust line and air intake hose are supported by clamps which are attached to the wall. -
Page 23: Pipe Stopper
4.4.4 Connect the Direct Vent Furnace 1. Attach the air inlet hose to the flue manifold 5. Install the bracket on the rear of the top on either inlet position “a” or “b”. spacer by tightening 2 screws. The plastic tie should be tight over the sleeve. - Page 24 Supplied The regulator has been factory pre-set. If gas pressure must be within the limits the pressure is incorrect, contact Rinnai shown in section “3.2 Specifications.” technical support. Refer to an approved pipe sizing chart if in doubt about the size of the gas line.
- Page 25 Instructions: 1. Turn off the gas and the power supply. 2. Remove the 5 screws that hold the Pressure louver assembly and front panel. Point Lift the panel straight up and then (Positive) remove it. Test 3. Remove two pressure point screws Switch (1/8 NPT tap) with 3/16 Allen wrench.
- Page 26 C. Visually Inspect the Flame: 8. Press the Test Switch twice to enter the gas code into memory. Check that the burner flames are operating normally. The flame can The LED display turns blank and the be seen through the circular window unit returns to the normal off mode.
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Page 27: Post-Installation Checklist
If you answer NO to any question, installation is not complete. Refer to the applicable section in this manual for additional information. For assistance, contact your local dealer or distributor, or call Rinnai Customer Care at 1-800-621-9419. INSTALLATION LOCATION Have you verified the unit and vent termination meet the clearance requirements? ... -
Page 28: Operation
5. Operation WARNING Topics in this section Keep the area around the furnace clear Safety Precautions and free from combustible materials, Operating Instructions gasoline, and other flammable vapors Control Panel and liquids. Basic Operation Settings ... -
Page 29: Operating Instructions
5.2 Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped C. -
Page 30: Control Panel
5.3 Control Panel The direct vent furnace includes a controller integrated into the front cover. Each feature on the control panel is described in the following sections. Figure 30: Control Panel Sensible Temperature Control The sensible temperature control feature allows comfortable heating which matches the conditions in the room. - Page 31 3. Press the “Program” button until none of 5.4.2 Lock the time options are flashing. The Lock feature will help to prevent accidental operation of the furnace and to prevent children from operating the furnace. To activate Lock, press the Lock button. The indicator will light and a beep will sound.
- Page 32 5.4.5 Remote Thermostat Mode (Optional Accessory) A remote thermostat can be installed for the furnace with the Remote Thermostat Installation Kit (Part # 204000045 for US installations, Part # 204000048 for Canadian installations). Once installed, the furnace must be placed in Remote Thermostat mode by following the steps below: 1.
- Page 33 5.4.6 Setting and Operating 5. Press the “Program” button again to set the times for Timer 2. Follow the the Timers same steps above to set the start and end times. 6. Press the “Program” button until none Confirm the clock is correct. of the time options are flashing.
- Page 34 5.4.8 Economy (Energy 5.4.9 Set Back Saving Mode) This function allows a minimum room temperature to be pre-set, between 38ºF and 78ºF (in 1ºF increments) This temperature The Economy mode can only be should be set below the room temperature set while the furnace is setting.
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Page 35: Add Water To The Humidifier
The horizontal louvers (which determines the 5.5 Add Water to vertical air flow direction) are fixed and cannot be adjusted. the Humidifier CAUTION Do not remove the bottom trim panel or the humidifier tray while warm air is flowing. Warm air is humidified when it passes over the water in the tray. -
Page 36: Diagnostic Codes
You may be able to clear the fault code by turning the furnace off and then on again. If the fault code remains or returns on the next operation, contact Rinnai or your nearest service agent and arrange for a service call. -
Page 37: Maintenance
6. Maintenance Filters This direct vent furnace must be inspected annually by a trained and qualified Dirty filters reduce the air flow professional. Repairs and maintenance must and the furnace’s ability to Air Filter be performed by a trained and qualified produce heat. -
Page 38: Troubleshooting
7. Troubleshooting Before making a service call, please check the following: AT IGNITION: Heater does not operate. Is the heater plugged in? Have the fuses or breaker blown at the fuse box / breaker panel? Is there a power failure? Is the air filter blocked? Is anything blocking the outlet for the hot air? Is the flue blocked? - Page 39 Additional Troubleshooting Remedies Table 10: Troubleshooting Remedies Issue No ON Abnormal Loss of Noisy Takes too Remedy Indicator Burner Combustion Combustion Smell Ignition Long to Ignition Warm Room Not Plugged in Plug in Power Failure Restart Unit (Initial ...
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Page 40: Parts
8. Parts Cut-Away Diagram Figure 53 EX17DT and EX22DT Installation and Operation Manual... - Page 41 Exploded View of Service Parts Figure 54 EX17DT and EX22DT Installation and Operation Manual...
- Page 42 Exploded View of Service Parts Figure 55 EX17DT and EX22DT Installation and Operation Manual...
- Page 43 Exploded View of Service Parts Figure 56 EX17DT and EX22DT Installation and Operation Manual...
- Page 44 Exploded View of Service Parts Figure 57 EX17DT and EX22DT Installation and Operation Manual...
- Page 45 Exploded View of Service Parts Figure 58 EX17DT and EX22DT Installation and Operation Manual...
- Page 46 Exploded View of Service Parts Figure 59 EX17DT and EX22DT Installation and Operation Manual...
- Page 47 Parts List Name Part Number EX17DT EX22DT EX22DT-W (White) 001 BOTTOM PLATE SUPPORT 209000235 002 HUMIDIFIER TRAY FIXING PLATE 209000095 003 BOTTOM PLATE UPPER PARTITION 209000236 004 TOP PLATE SUPPORTER H 209000097 005 TOP PLATE SUPPORTER V 209000098 006 TOP PLATE B 209000099 006 TOP PLATE 209000100...
- Page 48 Parts List (Continued) Name Part Number EX17DT EX22DT EX22DT-W (White) 034 TRANSFORMER COVER 209000244 036 SCREW 209000201 037 SCREW 209000225 038 SCREW 209000205 100 HEAT EXCHANGER ASSY 208000011 101 FIXING PLATE 209000123 102 COMBUSTION CHAMBER FIXER F 556F‐215 103 OHS FIXER 209000124 104 BURNER BOX ASS'Y 206000024...
- Page 49 Parts List (Continued) Name Part Number EX17DT EX22DT EX22DT-W (White) 136 AIR INLET PACKING RHF300F‐79 137 AIR INTAKE HOSE D RHF1000‐130‐D 138 AIR INLET ELBOW RHF1000‐132 139 CONNECTING TUBE 556F‐404 140 CONNECTING TUBE FIXER 556F‐408 141 CONNECTING TUBE FIXER 208000018 142 COMBUSTION FAN CASING ASSY 208000013 143 COMBUSTION FAN MOTOR ASSY A...
- Page 50 Parts List (Continued) Name Part Number EX17DT EX22DT EX22DT-W (White) 705 HIGH TENSION CORD 205000038 706 IG HARNESS ASSY 205000126 707 POV SV HARNESS ASSY 205000127 708 THERMISTOR HARNESS 205000128 709 TF HARNESS 205000103 710 HILIMIT THERMISTOR 205000117 711 HILIMIT THERMISTOR 205000118 712 ROOM THERMISTOR 205000105...
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Page 51: Appendices
This direct-vent appliance must be installed by a installed. state qualified or licensed contractor and a 2. APPROVED CARBON MONOXIDE properly trained Rinnai Installer. If you are not DETECTORS. Each carbon monoxide properly trained, you must not install this unit. detector as required in accordance with the... -
Page 52: Wiring Diagram
9.2 Wiring Diagram Label all wires prior to disconnection when servicing controls. Wiring errors CAUTION can cause improper and dangerous operation. Code Color black blue gr/y green/yellow green white yellow gray orange Mark Parts Name Mark Parts Name Main Switch OH.TH1,2 Over Heat Thermistor 1,2 R.TH Room Thermistor... -
Page 53: Ladder Diagram
9.3 Ladder Diagram Figure 61: Ladder Diagram EX17DT and EX22DT Installation and Operation Manual... -
Page 54: Warranty
Rinnai’s sole discretion. The warranty claim for product parts and labor may be denied if a component or product returned to Rinnai is found to be free of defects in material or workmanship; damaged by improper installation, use or operation; or damaged during return shipping. - Page 55 Limitation on Warranties No one is authorized to make any other warranties on behalf of Rinnai America Corporation. Except as expressly provided herein, there are no other warranties, expressed or implied, including, but not limited to warranties of merchantability or fitness for a particular purpose, which extend beyond the description of the warranty herein.
- Page 56 Rinnai America Corporation 200000084(01) 103 International Drive 1/2022 Peachtree City, GA 30269 RHF570-1750(02) Tel: 1-800-621-9419 Web: rinnai.us rinnai.ca...
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