Reznor RIHL Installation Operation & Maintenance
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Reznor RIHL Installation Operation & Maintenance

High-intensity infrared heaters
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INSTALLATION/OPERATION/MAINTENANCE FOR GAS-FIRED
HIGH-INTENSITY INFRARED HEATERS
• Failure to follow safety warnings exactly could result in serious injury, death, or property
damage.
• Improper installation, adjustment, alteration, service, or maintenance can cause serious injury,
death, or property damage.
• Une installation, un réglage, une modification, une réparation ou un entretien incorrect peut
entraîner des dommages matériels, des blessures ou la mort.
• Read these instructions thoroughly before installing or servicing this equipment.
• Lisez attentivement les instructions d'installation, de fonctionnement et d'entretien avant de
procéder à l'installation ou à l'entretien de cet intensité.
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the fire department.
DO NOT DESTROY. PLEASE READ CAREFULLY. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
MODELS RIHL, RIHN, RIHVL, AND RIHVN
 ⚠ DANGER ⚠ 
FIRE OR EXPLOSION HAZARD
WHAT TO DO IF YOU SMELL GAS
Revision: I-RIH (05-21) 131793-A
Supersedes: I-RIH (04-16) PN131793R11

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  • Page 1 Revision: I-RIH (05-21) 131793-A Supersedes: I-RIH (04-16) PN131793R11 INSTALLATION/OPERATION/MAINTENANCE FOR GAS-FIRED HIGH-INTENSITY INFRARED HEATERS MODELS RIHL, RIHN, RIHVL, AND RIHVN  ⚠ DANGER ⚠  FIRE OR EXPLOSION HAZARD • Failure to follow safety warnings exactly could result in serious injury, death, or property damage.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS GENERAL INFORMATION ..............3 References .

  • Page 3: General Information

    GENERAL INFORMATION These infrared heaters are designed and manufactured in compliance with the American National Standards Institute . They are design-certified by the Canadian Standards Association to ANSI Standards for installation in the United States and to CAN/CSA Standards for installation in Canada . These units are approved for indoor commercial and industrial installation only .

  • Page 4: Warranty

    GENERAL INFORMATION—CONTINUED Important Safety Information—Continued ⚠ CAUTION ⚠ • Uninsulated metal roof decks: infrared heaters should not be installed in buildings with uninsulated metal roof decks. Uninsulated metal roof decks will cause condensation of water vapor (contained in the unvented heater flue gas) on the inside of the building. Metal roof decks must be insulated using built-up insulation and roofing on the exterior or inside insulation that is not permeable to water vapor.

  • Page 5: Installation Codes

    Installation Codes • These units must be installed in accordance with local building codes . In the absence of local codes, in the U .S ., the unit must be installed in accordance with the National Fuel Gas Code ANSI Z223 .1/NFPA 54 (latest edition) . A Canadian installation must be in accordance with the CAN/CSA B149 .1, Natural Gas and Propane Installation Code .

  • Page 6: Ventilation Requirements

    GENERAL INFORMATION—CONTINUED Ventilation Requirements ⚠ DANGER ⚠ Insufficient ventilation may result in health problems, carbon monoxide poisoning, or death. Always vent enclosed spaces and buildings in accordance with national, state, provincial, and local codes. • These heaters are the unvented type . Generated products of combustion are released into the space being heated .

  • Page 7: Weights

    33-7/8 (860) 31-7/8 (810) 160, 200 41-3/16 (1046) 42-1/2 (1080) 40-1/2 (1029) Weights Table 3. Weights for Units Mounted at Allowable 5- to 30-Degree Angle Model RIHL RIHN RIHVL RIHVN Type Unit Size 030, 060 160, 200 Net Weight (Pounds (kg))
  • Page 8 ‡ 140 (3556) †, †† 48 (1219) 33 (838) 68 (1727) ‡‡ 180 (4572) † 60 (1524) ‡ 80 (2032) †† RIHL 30 (762) 48 (1219) ††† ‡‡ 34 (864) 110 (2794) † 62 (1575) ‡ Propane 105 (2667) ††...

  • Page 9: Unit Location

    Reflector Unit Model Type Size Mounting Height (Feet (Meters)) RIHL 13 .5–15 .5 (4 .1–4 .7) 12 .5–14 .5 (3 .8–4 .4) 11 .0–13 .0 (3 .4–4 .0) 10 .0–12 .0 (3 .0–3 .7) RIHN 14 .5–16 .5 (4 .4–5 .0) 13 .0–15 .0 (4 .0–4 .6)

  • Page 10: Installation

    3, DETAIL B) . Mount these units with the gas RIHL unit size 050 and RIHN unit sizes 030 and 060 (see manifold (A) angled upward, the gas valve (B) toward the high side, and the mounting angle at 5- to 30-degrees .

  • Page 11: Gas Connections

    b . Connect one end of short chain (11 inches (279-mm)) to front of heater using S-hook C . Connect other end of short chain to long chain by hooking S-hook D in loop of long chain . c . Adjust degree of mounting angle as necessary by moving S-hook D . d .

  • Page 12: Gas Supply Line

    INSTALLATION—CONTINUED Gas Connections—Continued Gas Supply Line ⚠ CAUTION ⚠ • DO NOT use gas supply piping to support the heater. • Isolate the heater from the gas supply line during high pressure leak testing of gas supply piping. • Always use two wrenches when mating pipe connections to the heater. Excessive torque on the manifold may misalign the gas orifices and cause the heater to malfunction.

  • Page 13: Gas Pressure

    Gas Pressure ⚠ CAUTION ⚠ • The main supply line pressure must be limited to 14 IN WC. If the line pressure can go above 14 IN WC (1/2 psi) at any time, a separate positive lockup, high-pressure type, service regulator must be used.

  • Page 14: Wiring For Units With 120Vac Direct Spark Ignition (Dsi) Single-Stage Controls

    INSTALLATION—CONTINUED Electrical Connections—Continued • Thermostats, switches, and field wiring are not supplied as standard equipment . When a thermostat is used to control the temperature of the heated zone, follow the wiring diagram on the unit . Position the thermostat according to the manufacturer’s instructions .

  • Page 15: Wiring For Units With 24Vac Direct Spark Ignition (Dsi) Single-Stage Controls

    Wire Colors Spark Combination Flame BK = Black Electrode Gas Valve (CGV) Sensor G = Green (SE) (FS) BK(2) - 1 & 2-burner O = Orange R(2) - 3 & 4-burner W(3) R = Red W = White Y =Yellow field wiring W(2) R(1)

  • Page 16: Wiring For Units With 24Vac Direct Spark Ignition (Dsi) Two-Stage Controls

    INSTALLATION—CONTINUED Electrical Connections—Continued Wiring for Units with 24VAC Direct Spark Ignition (DSI) Single-Stage Controls—Continued Flame Spark Combination Sensor Electrode Wire Colors Gas Valve (CGV) BK = Black (FS) (SE) G = Green O = Orange R = Red R(2) G(3) W = White Y =Yellow field wiring...

  • Page 17: Field-Installed Options

    field wiring Combination Flame Flame Spark Wire Colors Gas Valve (CGV) Sensor Sensor Electrode BK = Black (FS) (FS) (SE) G = Green O = Orange High Heat R = Red Valve (HHV) W = White Y =Yellow Ignition Control (IDC) Figure 10.

  • Page 18: Wire Grid (Option Dn2)

    FIELD-INSTALLED OPTIONS—CONTINUED Parabolic Reflector (Option DM2)—Continued Figure 11. Parabolic Reflector Wire Grid (Option DN2) Figure 12) increases radiant efficiency . This option is available on all models except The addition of option DN2 (see RIHN unit size 030 and is required on Canadian installations of model RIHN unit size 060 . Figure 12.

  • Page 19: Operation

    OPERATION Pre-Startup Checklist ‰ Ensure that electrical supply matches voltage of unit . ‰ Check for proper grounding and polarity of the ignition system . The direct spark ignition system cannot determine the presence of flame and will lockout and shut off if it is not electrically grounded to the burner . ‰...

  • Page 20: Shutdown

    OPERATION—CONTINUED Sequence of Operation—Continued 5 . On flame outage at the sensing electrode, the controller responds and begins sparking within 0 .8 seconds—a 15-second trial-for-ignition period begins to re-light the burner . 6 . If flame is re-established, normal operation resumes—sparking may continue for the full 15 seconds before stopping . a .

  • Page 21: Burner Replacement

    Burner Replacement Replace the burner (as necessary) as follows: Figure 15, DETAIL A) . 1 . Remove screw and slide burner assembly backward (see Figure 15, DETAIL B) . 2 . Pull burner assembly up and outward (see 3 . Check to ensure that there is spark gap clearance of 0 .219 (±0 .032) inches (5 .6 mm) from ceramic tile surface to the sparking tips of electrode (direct spark) assembly (see Figure 15, DETAIL C) .

  • Page 22: Troubleshooting

    TROUBLESHOOTING Table 8 Refer to for general troubleshooting symptoms, probable causes, and remedies . Table 8. General Troubleshooting Symptom Probable Cause Remedy A . Gas odor 1 . Gas pipe joints loose Leak test joints and tighten as necessary B . New 1 .
  • Page 23 Table 8. General Troubleshooting —Continued Symptom Probable Cause Remedy L . Burning 1 . Heater mounted incorrectly Ensure that heater is mounted in accordance with Installation section of gas 2 . Gas leaking from manifold, control assembly, or Leak test joints and tighten as necessary inside pilot joints causing gas ignition at orifice burner...

  • Page 24: Installation Record (To Be Completed By Installer)

    INSTALLATION RECORD (TO BE COMPLETED BY INSTALLER) Installer: Name ________________________________________________________ Company ________________________________________________________ Address ________________________________________________________ ________________________________________________________ Phone ________________________________________________________ Distributor (company from which the unit was purchased): Company ________________________________________________________ Contact ________________________________________________________ Address ________________________________________________________ ________________________________________________________ Phone ________________________________________________________ Model ________________ Serial No.______________________________Date of Installation ____________ SPECIFIC INSTALLATION NOTES: (i.e., Location, Amps, Gas Pressure, Temperature, Voltage, Adjustments, Warranty, etc.) ________________________________________________________________________________________...

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