ROYAL HEAT 240 / 360 GAS FURNACE INSTRUCTIONS Manufacturers of Quality Equipment Since 1910 PO Box 658 303 S. Main St. George, IA. 51237 Phone 888-475-3317 Fax 712-475-3490 www.siebringmfg.com Email sales@siebringmfg.
TABLE OF CONTENTS: 1. Cover 2. Blank 3. Table of Contents 4. Condition of Sale - Warranty 5. Warnings & Cautions 6. General Information 7. General Information & Instructions 8. New Installations 9. Placement 10. Placement Options 11. Venting 12. Venting (continued) 13. Gas Supply Information 14. CO Level Standards 15. Gas Pipe Capacities 16. Pilot Adjustment 17. Electrical Diagram 18. Troubleshooting 19. Troubleshooting (continued) 20. Troubleshooting (continued) 21.
CONDITION OF SALE SIEBRING MANUFACTURING, INC. GEORGE, IA 51237 Pursuant to Magnuson-Moss Warranty Federal Trade Commission Improvement Act P.L. 93-637, 88 STAT.2183-2193; U.P.C. 2301-2312 (Jan. 4, 1975), the following limited warranty will now replace all prior warranties issued by Siebring Manufacturing, Inc.
FOR YOUR SAFETY IF YOU SMELL GAS: 1. OPEN WINDOWS. 2. DON’T TOUCH ELECTRICAL SWITCHES. 3. EXTINGUISH ANY OPEN FLAMES. 4. DO NOT TRY TO LIGHT THE FURNACE 5. IMMEDIATELY CALL YOUR GAS SUPPLIER. WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.
GENERAL INFO: This unit complies with the American National Standard for Gas Unit Heaters (special units, which are not AGA certified, may also use this manual). 1. The installation must conform with all local codes, or, in the absence of local codes, it must follow the National Fuel Gas Code, ANSI Z223.1-1988. 2. All installation and servicing must be handled by qualified personnel. 3. This furnace should not be operated in an explosive or dusty environment. 4.
24” The chimney height will be determined by the surrounding roof & trees. The chimney should extend at least 24” above the high point of the roof with no obstructions from nearby roofs, trees or other structures. THIMBLE Draft Cap The vent pipe should extend only to (and not beyond) the inside wall of the chimney. Cement vent pipe tightly into chimney opening.
NEW INSTALLATIONS Electrical Information Important! Before beginning any electrical work, be certain the electrical supply is disconnected. For the furnace to operate properly, it must be wired exactly as outlined in this manual. An electrical diagram has been provided in this manual and on the face of the furnace. 1. If any wires as originally supplied are replaced, they should be replaced with type “T” wires, with a 63°F (35°C) rise wire in similar colors. 2.
PLACEMENT: This unit is designed to be used in various configurations. In greenhouses it may be positioned directly on the ground or suspended from the greenhouse structure. In aircraft hangars or garages, the unit will need to be suspended. 1. This unit may be suspended if necessary. Suitable framework, capable of handling the weight of the furnace, can be fabricated from angle, channel or tubing material.
Placement Options End Broadcast & Fan Furnace Horizontal Airflow Fan Fan 6’ 40’ Inter – House Heating Note: - 24” sq. air returns (fan assist) on each end of the greenhouse - One heat unit for two houses is not recommended Heated Air Heated Air Under Bench Heating Air forced under bench through poly-tubing duct. Heated Air Air forced under bench. Bench covered with used poly.
VENTING Vent connectors serving Category I & Category II heaters shall not be connected into any portion of mechanical draft systems operating under positive pressure. This furnace is equipped with a blocked vent shut off system. DO NOT attempt to run this furnace until a qualified service man has checked the installation. INSTALLATION The installation must conform with local building codes or in the absence of local codes, the installation must conform with the National Fuel Code, ANSI Z223.
C E I J B F V A D H F I A. Draft Diverter B. Horizontal Flue (must slope up ¼” per foot) C. Vertical Flue (must be twice as tall as horizontal distance - B) D. Alternate stack design for free standing support E. Chimney should extend 2 – 4 feet above high point of roof F. A “Tee” instead of an elbow is recommended on the bottom of the vertical stack to facilitate water drainage and chimney cleaning. Install a cap on the bottom of the “Tee”.
GAS SUPPLY INFORMATION This furnace is designed to run on several gas types. Natural and LP are the most common. Each furnace is set up for one type of gas. DO NOT attempt to burn another type of gas without replacing proper burner and gas valve modifications. 1. An Individual shut off valve is required for each furnace before the gas regulator. 2.
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Furnace Adjustments Pilot Adjustment The pilot flame should bathe the thermocouple in flame (1 ½” – 2”). Each gas valve has a pilot flame adjustment. Remove the screw beside the pilot gas line on the gas valve. The adjustment screw is down in this threaded hole. Turn counter-clockwise to increase flow. ⅜ TO ½ INCH Approx. 2” PILOT THERMOCOUPLE Pilot Burner Adjustment (on gas valve): 1. Remove Pilot adjustment cap. 2. 3. 4. Adjust pilot key to provide properly sized flame. 2” preferred.
Royal Heat – Gas 240 / 360 200°Snap Disc CB Fan & Limit 180°Snap Disc To Blower Motor To Blue Bird switch To Terminal block To “Blue Bird” switch Transformer 120V to 24V To Thermostat Gas Valve Robert Shaw 700-406 16
TROUBLESHOOTING 1. Blower motor – heats up and trips out thermal protector on motor or the main breaker on power source. A. Belt tension too tight Loosen belt (1/2” – 1” deflection) B. Electrical supply wiring & distance exceeded Install correct wire gauge, usually larger C. Blower bearing will not turn freely Replace or oil bearings D. Bad motor (amp draw, shorted…) Take motor to authorized repair center or replace E.
TROUBLESHOOTING (continued) 4. Unable to light pilot A. First time light attempt – air in gas line Purge air from gas line (test gas supply pressure) B. Blocked pilot orifice Clean or replace C. Check gas supply Gas line connected? Valve open? D. Pilot out of adjustment Open up needle valve (counter clock-wise to increase) E. Blocked or defective gas valve Replace gas valve 5. Pilot won’t stay lit after releasing gad cock dial, goes out immediately A.
TROUBLESHOOTING (continued) 7. 8. 9. Main burner will not light – test gas pressure A. Thermostat not calling for heat Raise thermostat setting / replace thermostat B. Check preceding pilot tips Proceed as required C. Bad transformer Replace if 120V in, nothing out. 24V is correct D. Bad gas valve Replace by qualified technician Main burner lights weakly – test gas pressure, tank level A. L.P. – Inadequate gas tank temperature or evaporation area B. Tank valve undersized and freezing up.
TROUBLESHOOTING (continued) 10. Blower motor starts and stops frequently (while main burner is on) A. Improperly set fan & limit switch Set switch to proper temperatures (90°/ 110°/ 170°) B. Defective fan & limit switch Replace C. Furnace is not at full firing rate See main burner section 11. Discharge air too hot / too cold A. Check firing rate Check gas pressures, orifice size B. Improperly set fan & limit switch Set switch to proper temperatures (90°/ 110°/ 170°) C. Defective fan & limit Replace D.
RH240 / RH360 Parts 1. Draft Diverter 2. Snap Disc - 200° (Draft Diverter) 3. 12” X 9” Ø Pipe extension (RH360 only) 4. Breaker box 5. 25 Amp Breaker 6. Fan & Limit Switch 7. Snap Disc – 180° (Furnace Shell) 8. 24V Transformer 9. Terminal Block, low voltage 10. Blower Motor * (RH240 - ¾ HP, RH360 – 1 HP) DO NOT Replace blower motor with farm duty or manual reset model 11. Drive (motor) Pulley (RH240 – 4 ½”, RH360 – 3 ¾”) 12. Motor Mount Bracket (RH240 – Small, RH360 – Large) 13.
RH240 / RH360 Parts 1 10* 11 12 13 2 3 4 5 6 2 5 A 14 7 15 8 16 17 Not Shown 9 Parts may not be drawn to scale 18 22
20 19 18 21 25 22 23 24 26 Side View 27 28 Top View 27 Pilot & Thermocouple 21 23 28
