Form I-RIH (Version D) Obsoletes Form I-RIH (Version C) Installation/Operation/Maintenance ® Applies to: Models RIH, RIHV, RIHVN, and RIHVL Gas-Fired High-Intensity Infrared Heaters Model RIH WARNING Improper installation, adjustment, alteration, service or maintenance can cause serious property damage, injury, or death. Read these instructions thoroughly before installing or servicing this equipment.
Table of Contents 1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 7.0 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13 2.0 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 8.0 Ignition and Operation . . . . . . . . . . . . . . . . . . . 14 1.1 Hazard Labels and Notices...........................2 1.2 General Information.......................................2 1.3 Warranty...................................................
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. Interior insulation that is permeable to water vapor must be completely sealed with a vapor barrier.
1.0 General (cont'd) Special Space Heating Installations (cont'd) Repair Garages - U.S.: In the United States, heaters installed in public garages must be in accordance with the Standard for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A (latest edition) (Formerly the Standard for Repair Garages (NFPA 88B).
2.2 Ventilation Requirements WARNING Insufficient ventilation may result in health problems, carbon monoxide poisoning, or death. Always vent enclosed spaces and buildings according to national, state, provincial, and local codes. These heaters are the unvented type. Products of combustion generated are released into the space being heated. Sufficient ventilation of fresh air is required to provide adequate air for efficient combustion and to dilute and remove the products of combustion.
4.0 Dimensions and Clearances 4.1 Dimensions FIGURE 1 - Model RIH Dimensions - inches and (mm) A Dimensions - inches Size A B C 30, 50, 60 15-5/16 16-5/8 14-5/8 90, 100 23-15/16 25-1/4 23-1/4 120, 150 32-9/16 33-7/8 31-7/8 160, 200 41-3/16 42-1/2 40-1/2 A B C 30, 50, 60 389 422 371 90, 100 608 641 591 C 13" (330mm) Dimensions - mm Size 120, 150 827 860 810 160, 200 1046 1080 1029 8-1/2" (216mm) 23-23/32" (603mm) B NOTE: Four (4) mounting holes 3/8” (9.
FIGURE 2 - Clearances to Combustibles (Inches and mm) 3D VIEW Sizes 30, 50, & 60 ONLY C C C B B E E A B STACKING HEIGHT ALL Sizes D D D M A A-D E H M D See Table below. Mounting Angle (5 - 30°) Stacking Height (equals M-D) Mounting Height (See table on page 4.) H • In locations used for the storage of combustible materials, signs shall be posted to specify the maximum permissible stacking height to maintain required clearances from the heater to combustibles. (ANSI Z233.
5.0 Suspending the Unit (cont'd) FIGURE 3A - Rigid or Chain Suspension applies to all Sizes Heater must be level. Be certain to check local codes for mounting requirements and permission to use flexible gas connectors. Local codes may require rigid mounting. It is recommended that either the piping or the mounting be flexible to prevent fatigue failure from vibration and/or thermal expansion. Heaters may be mounted with an angle of 5-30°. Do not angle heaters more than 30°.
If a heater is located in an aircraft hangar or near overhead doors, it should be rigidly mounted to prevent swinging. The installer is responsible for suspension of the heater. Under no circumstances should either the gas supply line or electrical supply line to the unit be used to provide assistance in suspension. Do not run any gas or electric service lines above or below the heater or near the path of the flue products. 6.0 Gas Supply 6.1 Gas Supply Line (Refer to FIGURE 6.
6.0 Gas Supply (cont'd) 6.2 Gas Pressure The main supply line pressure must be limited to 14" w.c. If the line pressure can go above 14" w.c. (1/2 p.s.i.) at any time, a separate positive lockup, high-pressure type, service regulator must be used. Always check local codes for gas venting requirements for high-pressure regulators. High-pressure regulators will NOT turn off the flow of gas. The minimum supply line pressure at the inlet to the heater regulator must, in no case, be lower than 7" w.c.
7.2 Electrical Requirements by Voltage and Control Types More specific electrical requirements may vary depending on whether the unit is single-stage (115V), single-stage (24V), or two-stage (24V). Select the information that applies to the unit being installed. NOTES common to FIGURES 6A, 6B, and 6C (page 12): • * Mechanical ventilation interlock is required when all combustion air is provided by a mechanical air supply system.
7.0 Electrical (cont'd) 7.2 Electrical Requirements by Voltage and Control Types (cont'd) FIGURE 6C - With 24 VAC DIRECT SPARK IGNITION (DSI) 2-STAGE CONTROLS (Option AG2R on RIHV100, RIHVN150, and RIHVN200 only) • • • • • Electrical supply: 24 VAC - 60 Hz or 50 Hz - 1 Phase. Maximum total heater current draw: 0.96 Amps. Total heater power consumed: 23.1 VA (23.1W). 3-wire field service required to 2-stage thermostat. 4-wire thermostat cable required from thermostat to heater.
FIGURE 7B - 24 VAC SINGLE-STAGE DIRECT SPARK IGNITION ELECTRICAL CONNECTION DIAGRAM 24 VAC – 60 or 50 Hz – 1 Phase Heater Maximum Current Draw = 0.66 Amps. Total Heater Power Consumed = 15.
8.0 Ignition and Operation LIGHTING INSTRUCTIONS 1. Turn manual gas valve to OFF position. 2. Turn electrical supply OFF. 3. Wait at least five (5) minutes. 4. Set thermostat above room temperature. 5. Turn manual gas valve to ON position. 6. Turn electrical supply ON. 7. Set thermostat at desired temperature. 8. If heater does not light, repeat Steps 1-7.
9.0 Commissioning and Startup □□Be certain 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 if it is not electrically grounded to the burner; it will lockout and shut off. □□Clearance to combustibles must be maintained. (See Paragraph 4.2.) Check location of sprinkler heads; high temperature heads may be required.
10.0 Accessories The following are field-installed accessories. Follow the instructions shipped with the option package. Thermostat, Option CL34 is a 24/120 volt thermostat that can be used to control 1-5 units. This thermostat can also be used to control the exhaust fan circuit. Thermostat, Option CL82 is a 24-volt, 2-stage digital thermostat that can be used with Option AG2R for automatic control of 1-5 units.
11.0 Maintenance and Service Refer to the illustrations below. • FIGURE 8 illustrates general arrangement of heater operation. • FIGURE 9 shows the direct spark assembly. • FIGURE 10 illustrates burner removal. 11.1 Maintenance Procedures and Illustrations Annual maintenance should be performed as follows: CAUTION: Always wear protective goggles when cleaning heaters. 1. Disconnect all power sources related to the installation and close the gas supply valve at the heater. 2.
11.0 Maintenance and Service (cont'd) 11.2 Troubleshooting Guide SYMPTOM Gas Odor POSSIBLE CAUSE 1. Gas pipe joints loose. New Installation 1. Heaters not isolated during high pressure leak testing of heaters not of gas lines working 2. All gas lines not completely bled of air No gas Electrical circuit closed but heater not working.
SYMPTOM Dark spots on ceramic surface Low ceramic surface temperature POSSIBLE CAUSE 1. Foreign matter behind the ceramic surface 2. Foreign matter inside burner assembly 1. Venturi obstructed (by spider web) 2. Foreign matter in venturi 3. Orifice partially blocked 4. Supply gas pressure low 5. Manifold gas pressure low 2-Stage transition from low-heat to high-heat does not happen 2-Stage transition from high-heat to low-heat does not happen Index 6.
INSTALLATION RECORD - to be completed by the installer: Installer: Name ________________________________________________________ Company ________________________________________________________ Address ________________________________________________________ ________________________________________________________ ________________________________________________________ Phone _________________________________ Distributor (company from which the unit was purchased): Contact _______________
