INSTALLATION AND OPERATION INSTRUCTIONS OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and understood before installing, operating or servicing this heater. INFRARED RADIANT CERAMIC HEATER R (B,S,M) D SERIES ! INSTALLER: This manual is the property of the owner. Please present this manual to the owner when you leave the job site. Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury or death.
WHAT TO DO IF YOU SMELL GAS: ! ! ! ! DO NOT try to light any appliance. Extinguish any open flame. Open windows. DO NOT touch any electrical switch. DO NOT use any telephone in your building. Immediately call your gas supplier from a neighbor’s telephone. Follow the gas supplier's instructions. If you cannot reach your gas supplier, call the Fire Department. ♦ Installation and service must be performed by a qualified installer, service agency or the gas supplier.
1) SAFETY This heater is a self-contained infrared radiant ceramic heater. Safety information required during installation and operation of this heater is provided in this manual and the labels on the product. The installation, service and maintenance of this heater must be performed by a contractor qualified in the installation and service of gas fired heating equipment. All personnel in contact with the heater must read and understand all safety information, instructions and labels before operation.
SAFETY REQUIREMENTS The heater area must be kept clear and free from combustible materials, gasoline and other flammable vapors and liquids. This heater is designed for use with one type of gas (LPG or Natural). Make sure that the type of gas to be supplied to this heater matches that shown on the heater rating plate. DO NOT install this heater directly onto an LPG container or propane cylinder without directions from your propane company.
This heater is for Indoor Installation only and can be used in Unvented mode. The term Unvented actually means Indirect Vented. While the products of combustion are expelled into the building, national codes require 4 CFM/1000 BTU of heater input ventilation in the building to dilute these products of combustion. This ventilation may be provided by gravity or mechanical means. This heater is not an explosion proof heater.
Combustible Items Include: Wood Paper Fabric Chemicals Wall or roof insulation Moving Objects Include: Overhead doors Vehicles on lifts Cranes Hoists Car wash equipment When installing the infra-red heater system, the minimum clearances to combustibles must be maintained. These distances are shown in Chart below and on the heater.
INSTALLER In locations used for storage of combustible materials where they may be stacked below the heater, NFPA 54 requires that the installer must post signs that will “specify the maximum permissible stacking height to maintain the required clearances from the heater to combustibles.” Mestek recommends posting these signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.
6) R (B,S,M) D SERIES DIMENSIONS 7) HANGING The heater can be mounted with the reflector horizontal or angled up to 35º from horizontal. When the heater is to be angle mounted, make sure the gas manifold assembly is on the lower side of the heater. Coil chains (No. 2 or larger) or rigid supports may be used to mount the heater, which must be suspended from a permanent structure with adequate load capacity.
8) GAS CONNECTIONS AND REGULATION 1. Connect to the supply tank or manifold in accordance with the latest edition of National Fuel Gas Code (ANSI Z223.1), and local building codes. Authorities having jurisdiction should be consulted before the installation is made. 2. All gas supply lines must be located in accordance with the required clearances to combustibles below the heater as listed on the nameplate of the heater. 3. Pipe joint compounds must be resistant to the action of liquefied petroleum gases.
5. This appliance is equipped with a snap-opening, combination Certified connections are gas valve. The maximum supply pressure to the appliance is recommended to be installed as 14” W.C. or 1/2 P.S.I. If the line pressure is more than the shown, in one plane, and without maximum supply pressure, then use a line regulator as sharp bends, kinks or twists. The gas indicated in the following illustration, or a line regulator which take off from the supply line must be corresponds to the supply pressure.
9) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION SUPPLY PRESSURE 1. The installer will provide a 1/8” N.P.T. plugged tapping, accessible for test gauge connection immediately upstream of the gas supply connection to the heater. OUTLET GAS PRESSURE CHECK AND ADJUSTMENTS (HONEYWELL 1-STAGE GAS VALVES) 1. Turn the gas valve to the “OFF” position. Remove the 1/8” plug from the combination gas valve at the outlet pressure tap and connect a 1/8” N.P.T. nipple to the tapped hole. Connect gauge to nipple.
OUTLET GAS PRESSURE CHECK AND ADJUSTMENTS (WHITE-RODGERS 1 STAGE) GAS VALVES Gauges that measure pressure in pounds per square inch are not accurate enough to measure or set the manifold pressure. All measurements MUST BE made when the heater and all other gas burning equipment that is connectied to the gas supply system are operating at maximum capacity. The combination gas valve is factory set and should not need adjustment. If gas pressure adjustment is required, follow the instructions: 1.
10) ELECTRICAL CONNECTIONS 1. All electric wiring shall conform to the latest edition of the National Electrical code (ANSI/NFPA No. 70), or the code legally authorized in the locality where the installation is made. 2. The unit must be electrically grounded in accordance with the National Electrical code (ANSI/NFPA No. 70-latest edition). In Canada, refer to current standard C22.1 Canadian Electrical Code Part 1. 3.
FIELD CONNECTION AND THERMOSTAT WIRING DIAGRAMS A. LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS – SINGLE HEATER PER THERMOSTAT B. LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS – MULTIPLE HEATERS PER THERMOSTAT C. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – MULTIPLE HEATERS PER THERMOSTAT – (POWER SUPPLIED FROM FAN CENTER RELAY) D.
11) VENTILATION Where unvented infrared heaters are used, natural or mechanical means shall be provided to supply and exhaust at least 4 cfm per 1000 Btu per hr input of installed heaters. Exhaust openings for removing flue products shall be above the level of the heaters. This heater requires ventilation in the building to dilute the products of combustion and provide fresh air for efficient combustion.
DIRECT SPARK IGNITION SYSTEM (Ignition Suffix “1”) 1. Turn on the gas supply. 2. Set the thermostat to call for heat. 3. Ignition should occur immediately. 4. If the burner fails to light, or flame is not detected during the first trial for ignition (a period of approximately 10 seconds) the gas valve is de-energized and the control goes through an interpurge delay of approximately 15 seconds before another ignition attempt.
14) CLEANING AND ANNUAL MAINTENANCE This heater consists of multiple individual atmospheric burners. Due to the variation in tile porosity, there could be color variations between the burners. This is natural and should not be a cause for concern during the initial startup.
C) TROUBLESHOOTING CHART TROUBLE Heater is not glowing red… POSSIBLE CAUSE The supply gas pressure is too low. Improper size of gas piping. The orifice is clogged. Incorrect orifice size. There is insufficient heat in the building Heater will not attain the desired temperature… for heat loss (i.e., not enough heaters). The thermostat sensing bulb is incorrectly placed. The thermostat is out of calibration. The gas pressure is too high.
C) TROUBLESHOOTING CHART Continued 18 Form #43219040 Jan 2014
16) OPTIONAL PARABOLIC REFLECTOR EXTENSION ASSEMBLY The heater is completely factory assembled and requires no field assembly. If the optional parabolic reflector extension is utilized, locate and identify the end panels and side panels as shown in the following diagram. Attach the side panels as shown. Attach the end panels so that the end flanges of the end panels overlap the side panels. Attach the side panels and end panels together with the screws provided in the kit.
20) REPLACEMENT PARTS GUIDE ITEM# PART # DESCRIPTION ITEM# PART # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 30755040 30755030 30279000 30632030 30295020 3056704 43856029 Valve-WR 36J22-232-propane gas @ 10” WC Valve-WR 36J22-2xx-natural gas @ 6” WC Transformer AT120B1051 Spark Module, Fenwal #35-605950-015 Electrode PSE-GF9 Ignition Cable 7” Burner Assembly Kit (Ignition Unit) 43862010 43862020 43862030 43862040 43847010 43847020 43847030 43847040 43908010 43908020 Manifold for RD033, RD035, R
21) WARNINGS CARD This card is furnished with each heater. Additional copies may be ordered under part no. 43344970.
