Related Manuals for Rinnai RHEPM8020N
Summary of Contents for Rinnai RHEPM8020N
- Page 2 Certification Standard may require changes to the product and/or this manual. This publication, or parts thereof, may not be reproduced in any form, without prior written con- sent from Rinnai. Unauthorized use or distribution of this publication is strictly prohibited. MODULATING — SUPPLEMENTARY MANUAL...
- Page 3 HE+ SERIES: MODULATING MODELS ALSO REFER TO THE GENERAL MANUAL INCLUDED FOR THIS SERIES HEATER • THIS SUPPLEMENTARY MANUAL: TABLE OF CONTENTS TOPIC ……...PAGE TOPIC ..PAGE APPLICATION FENWAL DSI: SEQUENCE OF OPERATION 1. INPUT RATINGS AND DIMENSIONS SPARK IGNITER SET UP 2.
- Page 4 WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read and understand this installation and op- eration manual thoroughly prior to assembly, installation, operation or service to this appliance. This heater must be installed and serviced only by a trained gas service techni- cian.
- Page 5 TUBE LENGTH HEATER MODELS GAS TYPE STRAIGHT [ft] LENGTH WEIGHT INPUT [BTUH] [ft] [LB] 21’ 7” RHEPM8020N NG / PROPANE 80,000 / 60,000 RHEPM8030N 31' 3" 31' 3" RHEPM11530N NG / PROPANE 115,000 / 72,000 RHEPM11540N 40’ 11” 40’ 11”...
- Page 6 FIGURE 1 HEATER DIMENSIONS REFLECTOR = 120” FIGURE 2 HANGER SPACING / LENGTH - AIR INTAKE TO VENT END • POSITION BURNER END HANGER 4 INCHES (10 CM) FROM BURNER CONNECTION • LOCATE SYSTEM HANGERS NO LESS THAN 6 INCHES (150mm) AND NO MORE THAN 24 INCHES (610mm) FROM TUBE COUPLING Tube Tube...
- Page 7 250,000 Stainless Steel Stainless Steel RHEPP4SS RHEPS3HHS1S2 TUBE KIT NOMENCLATURE Example: R - HEP - P - 2 - A - H - 1S2S Rinnai Series: High Efficiency Plus/Comfort Type: • P = Primary • S = Secondary Tube Quantity (1-4) First Tube Material: •...
- Page 8 2A. HE+ SERIES TUBE KIT SYSTEMS RHEPP2AHM RHEPP3AHM RHEPP3AHMX RHEPP4AHMX RHEPP4AHMX 30 ft PRIMARY: RHEPP3AHMX RHEPS2HHS1S2 20 ft SECONDARY RHEPP3AH RHEPS2HHS1S2 20 ft SECONDARY RHEPP3AH RHEPS3HHS1S2 30 ft SECONDARY RHEPP4SS RHEPS2HHS1S2 20 ft SECONDARY 40 ft PRIMARY: RHEPP4SS RHEPS3HHS1S2 30 ft SECONDARY HE+ Series Modulating Supplemental Manual...
- Page 9 This Page Intentionally Left Blank HE+ Series Modulating Supplemental Manual...
- Page 10 3. TURBULATOR LENGTHS & LOCATION IN SYSTEM NOTE: Improper location of a turbulator can cause malfunction of the heater, property damage, and will void the heater warranty. Tubes with turbulators inside are clearly labeled for easy identification. ALL turbulators are located within the BASE LENGTH (shortest length) of the tube sys- tem.
- Page 11 COMBUSTION AIR DUCTING Do not install filters on the combustion air intake. Ensure adequate clearance around the air intake to allow sufficient combustion air supply to the burner. Air duct is typically 4” diameter, but inputs 200,000 and greater require a minimum 5” diame- ter duct (reduce to 4”...
- Page 12 5. FLUE VENTING - RADIANT TUBE HEATER Effective January 1, 2019: Changes to the ANSI/CSA standard that gov- IMPORTANT erns Radiant Tube Heaters specify the following appliance CATEGORIES and VENTING: Vertical Vent Through Roof (Category I): When vented vertically, this tube heater series op- ◼...
- Page 13 1/2” sheet metal screws Install a minimum 12” [305 mm] straight vent connector before any Tee or 90° Elbow ◼ The connection of vent components must be secured as specified in the installation instruc- ◼ tions by the vent manufacturer. For vertical vent, any horizontal vent section will slope upwards away from the heater not less ◼...
- Page 14 TABLE 4 COMBINED SYSTEM LENGTH: TUBE + AIR DUCT + VENT Do Not Exceed Max. Air Duct Example Max. Vent Maximum Combined Length Length 155,000 Btuh Heater: Modulating (by Duct Diameter) System Length Individual: 4”Ø Maximum Tube Heater Length 50 ft With 4”...
- Page 15 Vertical vent through the roof (Category I): It is the sole responsibility of the installer to adhere to all current local codes and/or ANSI Z223.1 latest editions for all venting requirements, and practices. Also adhere to instructions below, and the instructions of the vent manufacturer.
- Page 16 Horizontal vent through the sidewall (Category III): When installed with a horizontal vent through a sidewall, this heater is a Category III appliance, ◼ and venting materials must be approved for Category III applications. All vent must be installed in accordance with local codes or, in the absence of local codes, with ◼...
- Page 17 USA specific horizontal vent requirements: The vent terminal of an appliance with an input up to 50,000 Btu/hr (14.7kW) shall be installed ◼ with a 9 inch [230mm] vent termination clearance from any air opening into a building, and an appliance with an input over 50,000 Btu/hr (14.7kW) shall have at least a 12 inch [305 mm] vent termination clearance.
- Page 18 6. GAS SUPPLY: MINIMUM / MAXIMUM & MANIFOLD PRESSURES Refer to General Manual for requirements on gas supply and flexible gas connection to the heater. ◼ TABLE 5 MODULATING GAS SUPPLY — LINE AND MANIFOLD PRESSURES INPUT LINE PRESSURE MANIFOLD PRESSURE GAS TYPE [ INCHES W.C.] [ INCHES W.C.]...
- Page 19 8A. HE+ SERIES WIRING DIAGRAM: 24V OR 120 VOLT THERMOSTAT OPERATION ONE HEATER PER THERMOSTAT HE+ Series Modulating Supplemental Manual...
- Page 20 8B. HE+ SERIES MULTIPLE TUBE HEATERS PER COMMON THERMOSTAT HE+ Series Modulating Supplemental Manual...
- Page 21 9. FENWAL DSI: SEQUENCE OF OPERATION / FLAME RECOVERY / SAFETY LOCKOUT Power Up / Stand By Upon applying 24 volts power to 24VAC, the control will reset, perform a self check routine, initiate full time flame sensing, and enter the thermostat scan state. Heat Mode When a call for heat is received from the thermostat supplying 24 volts to TH, the control checks the pressure switch for normally open contacts.
- Page 22 Flame Fault If at any time the main valve fails to close completely and maintains a flame, the full time flame sense circuit will detect it and energize the combustion blower. Should the main valve later close completely removing the flame signal, the combustion blower will power off following the optional post purge period.
- Page 23 SPARK IGNITER SET UP Use the following diagram to check the Igniter gap. If the gap is incorrect all adjustments should be made to the GROUND PRONG/PIN ONLY! DO NOT BEND THE IGNITER PRONG!!!! USE THE BLACK BARS BELOW AS A GUIDE FOR AD- JUSTMENT.
- Page 24 10. TROUBLESHOOTING GUIDE - FENWAL DSI (also see Heater Troubleshooting next page) SYMPTOM RECOMMENDED ACTION(S) A. Mis wired - check electrical supply (120Vac ± 5%) B. Transformer bad (24Vac ± 10%) 1. Dead C. Fuse/Circuit breaker bad D. Bad DSI control (check LED for steady on) E.
- Page 25 11. TROUBLESHOOTING GUIDE - HEATER OPERATION Improper adjustment, alteration, service or maintenance can WARNING cause property damage, injury or death. This heater must be installed and serviced only by a trained gas service technician SEQUENCE OF EVENTS (also see DSI Troubleshooting previous page) APPLY 120 VOLTS •...
- Page 26 MAIN BURNER LIGHTS • CHECK FOR STRONG SPARK AT IGNITER..(SEE PREVIOUS PAGE). • CHECK FOR 24 VAC ACROSS GAS VALVE. • CHECK OUTPUT VOLTAGE FROM CONTROL TER- MINALS TO GAS VALVE..IF NO VOLTAGE RE- PLACE CONTROL. • CHECK ELECTRICAL WIRING, AND VOLTAGE BE- TWEEN IGNITION CONTROL AND GAS VALVE.
- Page 27 12. START-UP / COMMISSIONING SHEET THIS EQUIPMENT HAS BEEN FACTORY FIRED AND TESTED PRIOR TO SHIPMENT. HOW- EVER, THIS APPLIANCE IS NOT “PLUG & PLAY”. IT REQUIRES COMMISSIONING AND FIELD ADJUSTMENT / SPECIFICATIONS CONFIRMATION TO ENSURE SAFE AND EFFI- CIENT OPERATION. COMMISSIONING REPORT AS PER I&O MANUAL AND LOCAL CODES CONTRACTOR NAME: ................DATE........
- Page 28 QUALIFIED INSTALLER TO COMPLETE THIS TO BE COMPLETED BY THE LICENSED INSTALLER TUBE HEATER COMMISSIONING REPORT TYPE OF GAS: DOES BUILDING HAVE A NEGATIVE CONDITION: IF THIS IS A HIGH ALTITUDE AREA WHAT IS THE ALTITUDE ABOVE SEA LEVEL Feet DOES APPLICATION REQUIRE FRESH AIR TO BURNER IS HEATER EXPOSED TO CHEMICAL OR CORROSIVE ATMOSPHERE: ARE ACTUAL MINIMUM CLEARANCES AS PER TABLE 3...
- Page 29 Tube Heater Burners are factory produced and supplied to operate on natural gas. A field conversion kit is available from Rinnai and must be used to convert from natural gas to pro- pane gas, or vice versa. Each kit contains the required parts and specific instructions to make the gas conversion.
- Page 30 . Check with your local utility regarding de- rating, and the following specifically for country of installation: TABLE 7– RINNAI RECOMMENDED ORIFICES - ALTITUDE CONVERSION FOR USE AT ALTITUDES ABOVE (FEET)
- Page 31 15. REPLACEMENT PARTS: BURNER MODEL PART DESCRIPTION GAS TYPE PART # PART DESCRIPTION PRIMARY (BTU) 906000085 SSTM Burner Chamber NG; Propane BURNER CHAMBER 906000086 SSTM Burner Cup - Steel BURNER CUP NG; Propane 906000091 Gas orifice low intensity heater: 17 Number Size MAIN BURNER ORIFICE 906000092 Gas orifice low intensity heater: 37 Number Size...
- Page 32 MODEL PART DESCRIPTION GAS TYPE PART # PART DESCRIPTION PRIMARY (BTU) 24 VDC BLOWER 908000014 24 VDC, 43W Blower Assembly 80 to 155 NG; Propane ASSEMBLIES 908000015 24 VDC, 63W Blower Assembly 205 to 260 NG; Propane BLOWER INTAKE 902000003 Blower Air Intake Restrictor: 1.375 inch Hole NG;...
- Page 33 16. REPLACEMENT PARTS: TUBE SYSTEM MODEL MODEL DASH PART DESCRIPTION PART # PART DESCRIPTION PRIMARY (BTU) #/ GAS TYPE SYSTEM TUBES: Aluminized Steel Tube with Holes + Rivet + Cou- 906000118 PRIMARY COMBUSTION TUBE 50 to 205 pler 906000119 Stainless Steel Tube with Holes + Rivet + Coupler 225 to 250 906000120 Coated Steel Tube;...
- Page 34 NOTES HE+ Series Modulating Supplemental Manual...
- Page 35 NOTES HE+ Series Modulating Supplemental Manual...