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Summary of Contents for Rinnai EX08DT
- Page 1 MODELS: EX08DT (RHFE-203FTA) EX1 1 DT (RHFE-266FTA) Direct Vent Wall Furnace Installation and Operation Manual RHF310-1750(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
8. Parts ............................40 9. Appendices ..........................50 9.1 Massachusetts State Gas Regulations ................50 9.2 Wiring Diagram ....................... 51 9.3 Ladder Diagram ......................52 10. Warranty ..........................53 11. Notes ............................55 EX08DT and EX11DT Installation and Operation Manual... -
Page 4: Welcome
Natural Gas give the manual directly to the consumer. National Pipe Thread Original Equipment Manufacturer Pounds per Square Inch Volts Alternating Current Inches of Water Column EX08DT and EX11DT Installation and Operation Manual... -
Page 5: Safety
Do not operate the furnace with the or moderate injury. It may also be used to panels removed, cracked or broken. alert against unsafe practices. Replacement of the panels should be performed by a trained and qualified professional. EX08DT and EX11DT Installation and Operation Manual... - Page 6 9. After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-fired burning appliance to their previous conditions of use. EX08DT and EX11DT Installation and Operation Manual...
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Page 7: About The Direct Vent Furnace
French is on the ❿ Combustion Air Intake Hose left side. ⓫ Exhaust Pipe Humidifier (to access, remove bottom ❺ cover and pull out) ⓬ Flue Manifold (Combustion/Exhaust) EX08DT and EX11DT Installation and Operation Manual... -
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
Measurements: inches (mm) Front View (Including Sample Wall Template Side View Located on Furnace Carton Box) Wall Bracket Center of Furnace Flue Elbow Wall Opening Position Figure 3: Front View Figure 4: Side View EX08DT and EX11DT Installation and Operation Manual... -
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
Chemicals that are corrosive in nature should not be stored or used near the furnace or vent termination. Damage and repair due to corrosive compounds in the air is not covered by warranty. EX08DT and EX11DT Installation and Operation Manual... - Page 13 [2] Permitted only if veranda, porch, deck, or balcony is fully open on Clearance to opposite wall is 24 inches (60 cm). a minimum of two sides beneath the floor. EX08DT and EX11DT Installation and Operation Manual...
- 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 EX08DT and EX11DT Installation and Operation Manual...
- Page 15 Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280 and/or CAN/SCA Z240 MH Series, Mobile Homes. Leave the entire manual taped to the furnace or give the manual directly to the consumer. EX08DT and EX11DT Installation and Operation Manual...
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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.” Figure 10 ... - Page 17 Top Terminal seal Apply silicone sealing evenly Terminal around the entire seal. Locking tie Put silicone sealing evenly around the perimeter without any gaps between the terminal seal and rough wall surface. Figure 12 EX08DT and EX11DT Installation and Operation Manual...
- Page 18 Push the assembly into the terminal tube, ensuring that the seal is in place on the inner tube. Attach the inside connection with 3 screws. The inner connection can still be turned to install the screws. 3 screws Figure 14 EX08DT and EX11DT Installation and Operation Manual...
- Page 19 Hose Joint - 1.5 in. (38 mm) inner dia. Hose Joint - 2.0 in. (50 mm) inner dia. Pipe Stopper A Pipe Stopper B Pipe Clamp 2 Sets 3 Sets 4 Sets Wall Fixture Screw A Screw B EX08DT and EX11DT Installation and Operation Manual...
- Page 20 Guidelines (EX11DT Model Only): IMPORTANT Extension Kit Applies to EX11DT Model Only. Extension Kit not available for EX08DT Model. 1. The maximum vent length is 13 feet (4 m) with 3 bends. The bent pipe attached to the furnace does not count toward the max limit of 3 bends.
- Page 21 Too many bends (limit is 3) Air intake hose is above exhaust pipe Figure 17 (EX11DT Model Only) CORRECT NOT CORRECT Slope horizontal sections 3° downward 90° Elbow Up 3° Configuration Exhaust Exhaust Intake Intake Figure 18 EX08DT and EX11DT Installation and Operation Manual...
- Page 22 Bend to desired angle. Do not cut the intake hose. Cutting the intake hose may result in noise. Do not straighten the bent pipe attached to the furnace. EX08DT and EX11DT Installation and Operation Manual...
- Page 23 4. Slide the insulation sleeve up to the flue manifold and slip the securing clip over the sleeve as shown. Spacer Bracket Fit Clip Slide Wall Bracket Figure 27 Insulation Sleeve Figure 25 EX08DT and EX11DT Installation and Operation Manual...
- Page 24 The regulator has been factory pre-set. If Refer to an approved pipe sizing chart if in the pressure is incorrect, contact Rinnai doubt about the size of the gas line. technical support. EX08DT and EX11DT Installation and Operation Manual...
- Page 25 Refer to the table below. Figure 28 Table 8: Gas Pressure Natural Gas Propane Gas EX08DT Vent Lengths: 0 ft. (0 m) (A1-A4) EX08DT Vent Lengths: 0 ft. (0 m) (L1-L4) EX11DT Vent Lengths: EX11DT Vent Lengths: ...
- Page 26 This furnace has an automatic ignition system. When the main burner has lit, the combustion lamp will glow red, and the spark will stop. EX08DT and EX11DT Installation and Operation Manual...
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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
Do not sit on the furnace. — Installa on and service must be Do not place containers of liquid on top of performed by a licensed the furnace. Water spillage can cause professional. extensive damage to the furnace and may result in electric shock. EX08DT and EX11DT Installation and Operation Manual... -
Page 29: Operating Instructions
Keep burner and control located on control panel.) compartment clean. See installation and operating 3. Locate the manual gas valve. instructions. 4. Turn the manual valve clockwise to the full OFF position. EX08DT and EX11DT Installation and Operation Manual... -
Page 30: Control Panel
The fan will continue to operate for several minutes after the burner has gone out in order to cool the furnace. Do not unplug the furnace while the fan is running. Figure 31 EX08DT and EX11DT Installation and Operation Manual... - Page 31 H - burner is on maximum combustion flashing. Press the up and down arrows to set the time. Holding down either of the arrow keys will change the time more quickly. Figure 34 EX08DT and EX11DT Installation and Operation Manual...
- Page 32 IMPORTANT The remote thermostat will NOT control the furnace’s ability to power on or power down. This must still be done by using the ON/OFF button of the furnace. EX08DT and EX11DT Installation and Operation Manual...
- Page 33 Timer 1 Temp Position is flashing. Press the will return the furnace to the up or down arrows to set the temperature. operation of the current timer period. Flashing Figure 43 Figure 41 EX08DT and EX11DT Installation and Operation Manual...
- Page 34 The Set Back feature is intended to prevent the installation location from falling below a specified temperature. It is not intended as an Figure 45: Economy Mode alternate thermostat, but rather a preventative measure against freezing. EX08DT and EX11DT Installation and Operation Manual...
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Page 35: Add Water To The Humidifier
1 hour. If the Do not bend repeatedly (no more than 5 times) flame is extinguished after this period then the or else the louver will break. furnace will immediately attempt ignition. EX08DT and EX11DT Installation and Operation Manual... -
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
Refer to “Flue Terminal Clearances” in section “4.3.2 Clearances.” The Yellow flames or clearance in Ref. A should be maintained orange color from any snow accumulation. Figure 52 EX08DT and EX11DT Installation and Operation Manual... -
Page 38: Troubleshooting
High efficiency appliances tend to discharge water vapor terminal. on cold days. This is normal. Unit cuts off without apparent Check whether filters are blocked. Dirty filters will cause reason. the heater to overheat. EX08DT and EX11DT Installation and Operation Manual... - Page 39 Air Filter Clean Filter Blocked Gas Escape Service Call Lock Set Cancel Lock Gas Off at Meter, Tank, or Turn Gas On Valve Cancel “ON” ON Timer is set Timer EX08DT and EX11DT Installation and Operation Manual...
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Page 40: Parts
8. Parts Cut-Away Diagram Figure 53 EX08DT and EX11DT Installation and Operation Manual... - Page 41 Exploded View of Service Parts Figure 54 EX08DT and EX11DT Installation and Operation Manual...
- Page 42 Exploded View of Service Parts Figure 55 EX08DT and EX11DT Installation and Operation Manual...
- Page 43 Exploded View of Service Parts Figure 56 EX08DT and EX11DT Installation and Operation Manual...
- Page 44 Exploded View of Service Parts Figure 57 EX08DT and EX11DT Installation and Operation Manual...
- Page 45 Exploded View of Service Parts Figure 58 EX08DT and EX11DT Installation and Operation Manual...
- Page 46 209000222 033 HUMIDIFIER TRAY 308F‐326 034 SPACER BRACKET RHF300‐152 035 WIRE GASKET B AU131‐236‐B 036 WIRE GASKET A AU131‐236‐A 038 SCREW 209000201 039 SCREW 209000225 040 SCREW 209000205 100 HEAT EXCHANGER ASSY 206000029 EX08DT and EX11DT Installation and Operation Manual...
- Page 47 128 TEST PORT SCREW AU39‐965X01 129 INTERCONNECTION ASSY 206000036 130 O RING M10B‐1‐10 131 TUBE B (BLACK) 208000070 132 TUBE A (CLEAR) 1004F‐2052‐1 133 CONNECTING TUBE RETAINER 209000079 134 COMBUSTION FAN MOTOR ASSY 205000108 EX08DT and EX11DT Installation and Operation Manual...
- Page 48 406 CABLE CLIP CP‐90125‐2 407 WIRE CLIP CP‐90107‐25 408 CABLE CLIP 209000071 409 CABLE CLIP 209000230 410 SCREW 209000231 700 PC BOARD ASSY 205000110 700 PC BOARD ASSY 205000111 701 CONTROL CIRCUIT BOARD 205000107 EX08DT and EX11DT Installation and Operation Manual...
- Page 49 888 OPERATION MANUAL 200000089 890 OPERATION LABEL 209000234 952 FRONT PANEL EMBLEM 209000215 Conversion Kits (Optional) Model For Converting to Natural Gas For Converting to Propane EX08DT (RHFE-203FTA) 203000003 203000004 EX11DT (RHFE-266FTA) 203000005 203000006 EX08DT and EX11DT Installation and Operation Manual...
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Page 50: 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 51: Wiring Diagram
Over Heat Switch Thermal Fuse Convection Fan Motor Fuse Sparker Electrode SV1,2 Main Solenoid Valve 1,2 Modulating Solenoid Valve Combustion Fan Motor Flame Rod Pressure Sensor W.TH Wall Thermostat Figure 59: Wiring Diagram EX08DT and EX11DT Installation and Operation Manual... -
Page 52: Ladder Diagram
9.3 Ladder Diagram Figure 60: Ladder Diagram EX08DT and EX11DT Installation and Operation Manual... -
Page 53: 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 54 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.
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Page 55: Notes
11. Notes EX08DT and EX11DT Installation and Operation Manual... - Page 56 Rinnai America Corporation 200000083(01) 103 International Drive 1/2022 Peachtree City, GA 30269 RHF310-1750(02) Tel: 1-800-621-9419 Web: rinnai.us rinnai.ca...
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