LOW INTENSITY TUBE TYPE INFRARED HEATER WITH HIGH EFFICIENCY EC Motors ANSI Z83.20-2016 • CSA 2.34-2016 NOTICE: This manual is current and correct for this product at time of manufacture. Occasional revision of the product 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 consent from Rinnai. Unauthorized use or distribution of this publication is strictly prohibited.
HE+ SERIES: SINGLE-STAGE MODELS ALSO REFER TO THE GENERAL MANUAL INCLUDED FOR THIS SERIES HEATER • THIS SUPPLEMENTARY MANUAL: TABLE OF CONTENTS TOPIC TOPIC ..... PAGE APPLICATION ……...PAGE 8B. WIRING DIAGRAM: MULTIPLE 4 HEATERS PER THERMOSTAT 22 1. INPUT RATINGS AND DIMENSIONS 5 2. BURNER / TUBE KIT ASSEMBLY CHART 7 3. TURBULATOR LENGTH & LOCATION 11 SPARK IGNITER SET UP 25 4. COMBUSTION AIR DUCTING 13 FENWAL DSI SERVICE CHECK 25 5. FLUE VENTING: 14 10.
WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read and understand this installation and operation 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 technician. Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other gas fired appliance.
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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 Length Tube Length ‘L’ = center air intake to end ‘L’ = center air intake to end 10’ 11’-3 3/4” ; 135 3/4” ; 345 cm 50’ 49’-11 3/4” ; 599 3/4” ; 1523 cm 20’ 20’-11 3/4” ; 251 3/4” ; 628 cm 60’ 59’-7 3/4
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HE+ Series 1-Stage Supplemental Manual 8 RHEPP3AH RHEPP4AH RHEPS3HHS1S2 RHEPS2HHS1S2 RHEPP4AH RHEPS2HHS1S2 RHEPP4AH RHEPP3AH RHEPP3AH RHEPP3AH PRIMARY: RHEPP3AH RHEPP2AH Tube Quantity (1-4) First Tube Material: • A = Aluminum • H = Hot Rolled Steel • S = Stainless Steel Second Tube Material: • A = Aluminum • H = Hot Rolled Steel • S = Stainless Steel 2 A H 1S2S Stage • M = Modulating • MX = Modulating Alternate Turbulator • 1S2S = 1 and 2 Stage Type: • P = Primary • S = Secondary Series: H
HE+ Series 1-Stage Supplemental Manual PRIMARY: RHEPP4SS PRIMARY: RHEPP4SS SECONDARY: RHEPS4HH SECONDARY: RHEPS3HHS1S2 SECONDARY: RHEPS2HHS1S2 PRIMARY: RHEPP4SS SECONDARY: RHEPS4HH PRIMARY: RHEPP3AH SECONDARY: RHEPS3HHS1S2 PRIMARY: RHEPP3AH SECONDARY: RHEPS2HHS1S2 PRIMARY: RHEPP3AH
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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 system. One or two tubes added to system base length are regular empty tubes with no turbulators. Each turbulator is 36 inches in length by 2.25” width (see Table below).
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4. 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 205,000 and greater require a minimum 5” diameter duct (reduce to 4” at burner connection). Any 4” duct can be increased to 5” diameter to allow up to an additional 20 feet of duct length. Combustion air duct must be constructed of noncombustible material.
5. FLUE VENTING - RADIANT TUBE HEATER Effective immediately for this tube heater series: Changes to the ANSI/ IMPORTANT CSA standard that governs Radiant Tube Heaters specify the following appliance CATEGORIES and VENTING: ◼ Vertical Vent Through Roof (Category I): When vented vertically, this tube heater series operates with a negative static vent pressure and a vent temperature that does not result in excessive condensate in the vent and is defined as a Category I appliance. Refer to details below.
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 instructions by the vent manufacturer. ◼ For vertical vent, any horizontal vent section will slope upwards away from the heater not less than 1/4 inch rise per foot of run.
TABLE 4 COMBINED SYSTEM LENGTH: TUBE + AIR DUCT + VENT SINGLESTAGE Input (Btuh) Do Not Exceed Maximum Combined System Length Max. Air Duct Length (by Duct Diameter) Max.
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. Use vent materials certified for Category I. All models of this series heater are certified Category I for vertical venting. See FIG. 5.
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 the National Fuel Gas Code, ANSI Z223.1/NFPA 54. ◼ All vent must installed in accordance with these instructions, and the instructions of the vent manufacturer.
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. The bottom of the vent terminal and the air intake shall be located at least 12 inches [305 mm] above grade.
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 Manifold Pressure - Single Stage Models INPUT SINGLE-STAGE FUEL TYPE Natural Gas Propane LINE PRESSURE MANIFOLD PRESSURE INCHES WATER COLUMN MINIMUM MAXIMUM (tap at gas valve outlet) INCHES WATER COLUMN 5.0 14.0 3.5 (4.2 for 225 & 250 Btuh Models) 11.0 14.0 10.0 7.
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P/N: 905000035 P/N: 905000035 P/N: 905000035 8B.
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.
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. MOUNTING AND WIRING The Fenwal DSI Control 24 VAC Tube Heater (905000020) is not position sensitive and can be mounted vertically or horizontally.
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 ADJUSTMENT. USE THE BARS THAT COINCIDE WITH THE FORMAT & SIZE OF THIS PUBLICATION . IF this manual is in 3/16” 1/4” 8.5” x 11” “booklet” format (pages folded in half) then use these bars OR IF this manual is printed 11” “full page” format 8.
10. TROUBLESHOOTING GUIDE - FENWAL DSI (also see Heater Troubleshooting next page) SYMPTOM RECOMMENDED ACTION(S) 1. Dead A. B. C. D. 2. Thermostat on - no blower output A. Miswired B. Bad thermostat no voltage @ terminal W C. Bad control (check LED for steady on) 3. Pressure switch input okay, but no Trial-forIgnition after purge delay A. Miswired (check PSW terminal voltage: 24Vac ± 10%) B. Flame sense problem (existing flame: check LED - 2 flashes) C.
11. TROUBLESHOOTING GUIDE - HEATER OPERATION WARNING Improper adjustment, alteration, service or maintenance can cause property damage, injury or death. This heater must be installed and serviced only by a trained gas service technician.
MAIN BURNER LIGHTS NO • CHECK FOR STRONG SPARK AT IGNITER........ (SEE PREVIOUS PAGE). • CHECK FOR 24 VAC ACROSS GAS VALVE. • CHECK OUTPUT VOLTAGE FROM CONTROL TERMINALS TO GAS VALVE.....IF NO VOLTAGE REPLACE CONTROL. • CHECK ELECTRICAL WIRING, AND VOLTAGE BETWEEN IGNITION CONTROL AND GAS VALVE. • IF OK, REPLACE GAS VALVE. NO CONTROL IS NOT SENSING FLAME WITHIN THE 15 SECOND TFI AND IS STILL TRYING TO LIGHT • CHECK CONTINUITY OF SENSOR CABLE AND GROUND WIRE • CHECK BURNER FLAME IS COVERING SENSOR.
12. START-UP / COMMISSIONING SHEET THIS EQUIPMENT HAS BEEN FACTORY FIRED AND TESTED PRIOR TO SHIPMENT. HOWEVER, THIS APPLIANCE IS NOT “PLUG & PLAY”. IT REQUIRES COMMISSIONING AND FIELD ADJUSTMENT / SPECIFICATIONS CONFIRMATION TO ENSURE SAFE AND EFFICIENT OPERATION. COMMISSIONING REPORT AS PER I&O MANUAL AND LOCAL CODES CONTRACTOR NAME: ................................................................................DATE................................ ADDRESS:...............................................
QUALIFIED INSTALLER COMPLETE THIS TO BETO COMPLETED BY THE LICENSED INSTALLER TUBE HEATER COMMISSIONING REPORT TYPE OF GAS: NG LP DOES BUILDING HAVE A NEGATIVE CONDITION: YES NO IF THIS IS A HIGH ALTITUDE AREA WHAT IS THE ALTITUDE ABOVE SEA LEVEL Feet DOES APPLICATION REQUIRE FRESH AIR TO BURNER YES NO IS HEATER EXPOSED TO CHEMICAL OR CORROSIVE ATMOSPHERE: YES NO ARE ACTUAL MINIMUM CLEARANCES AS PER TABLE 3 YES NO CAN HEATER BE AFFECTED BY OVERHEAD CRANES / VIBRATION YES NO ARE GAS SUPP
13. FIELD CONVERSION OF FUEL GAS: HE+ SERIES SINGLE-STAGE BURNERS 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 propane gas, or vice versa. Each kit contains the required parts and specific instructions to make the gas conversion. Refer to the table below for kit part numbers.
14. HIGH ALTITUDE INSTALLATIONS - Refer to chart below for Restrictions When installed above the altitude stipulated below for USA, the input must be de-rated by 4% for each 1000 ft above the altitude listed. Refer to the tables below for orifice size and restrictions that apply to high altitude installation (including total system length restrictions). Check with your local utility regarding the gas supply and the de-rating of this appliance. Maintain gas supply pressure indicated in Section 4.
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# PART DESCRIPTION 10 EQUALIZER PLATE MODEL (BTU) MODEL DASH #/ PART # GAS TYPE 50 NG; Propane 906000107 65 & 80 NG; Propane 906000108 115 to 155 NG; Propane 906000109 180 NG; Propane 906000110 205 NG; Propane 906000111 225 & 250 NG; Propane 906000109 11 24 VDC BLOWER ASSEMBLIES 50 to 205 NG; Propane 908000014 225 & 250 NG; Propane 908000015 12 BLOWER INTAKE RESTRICTOR 130 80 & 115 NG; Propane 908000016 NG; Propane 908000017 NG; Propane 908000018 155 NG; Propane 908000019 50 & 65 180
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NOTES 37 HE+ Series 1-Stage Supplemental Manual
NOTES HE+ Series 1-Stage Supplemental Manual 38
NOTES 39 HE+ Series 1-Stage Supplemental Manual
