President GAS FIRED VENTED ROOM HEATERS MODEL 520AN For Natural Gas MODEL 520AP For L P G (Propane) Gas WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. − Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. − WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
CONTENTS Page Safety information Installation instructions • General • Rates • Orifice data • Clearances • Floor requirements • Draft hood • Venting • Optional accessories • Possible installations • Contents of packs • Assembling outer cast-iron case • Heater preparation • Ignition spark check • Gas supply connection • Log installation • Operation check • System pressure check • Venting check • Aeration adjustment • Completion of assembly • Final checks Operating procedure • Lighting if igniter fails • Safe
SAFETY INFORMATION Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies. Keep the appliance area well clear and free from combustible materials, gasoline and other flammable vapors and liquids. Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or clothing ignition. If any changes are made to the room construction in the vicinity of the appliance after installation (e.g.
Rates (Btu/h) Natural Gas INSTALLATION INSTRUCTIONS 1. GENERAL Altitude Max. Min. (Ft)* Input 0-2000 20,000 7,700 2000-4500 17,800 7,000 Output 0-2000 15,000 5,300 2000-4500 12,500 4,900 * Altitudes above 2000ft require conversion kit 525HACK Propane Altitude (Ft) Max. Min. Input 0-4500 17,000 8,750 Output 12,750 Orifice Data For verification only. Do not attempt to drill or otherwise modify appliance output.
1.1 CLEARANCES: Make sure that the minimum clearances to combustible materials are maintained during installation including adequate space for the proper operation and servicing of the heater. The minimum clearances from the heater to combustible materials are shown in figure 1. The combustion air opening below the ashlip assembly and the clearance at the sides of the case rear must not be obstructed. ensure that no sags or dips are allowed to occur where the liner connects to the heater (figure 2). 2.
2. UNPACKING THE HEATER AND CASE 3. ASSEMBLING THE CAST IRON OUTER CASE CONTENTS OF THE PACKAGES Please read these instructions fully before attempting to install the Outer Case for the first time.
Fig. 5 Ashlip & feet assembly Take the ashlip/front feet assembly and observe the attachment arrangements (see Figure 5) at the rear of the assembly, and place on the floor, in front of the fireplace. Stand the heater upright. Remove the window unit assembly by detaching the knurled screws at the sides near the top. Lift the window unit up to clear locations at the bottom and Fig. 7 Window removal place carefully aside (see fig. 7).
5. CHECK IGNITION SPARK 7. CONNECT THE GAS SUPPLY To gain access to the appliance connection point, the center panel in the firebox floor must be removed by unscrewing four screws and lifting it clear (see figure 10). Route the supply gas line to the heater connection point. The appliance is supplied with a 3/8”NPT elbow Fig. 10 Firebox floor panel removal connector for connection to the supply pipe. Use only new black iron or steel pipes or copper tubing it acceptable - check local codes.
8. LOG INSTALLATION 8.1 Place the rear log (the log with only one short stub) in the retaining cradle behind the rear burner tube with its back against the firebox back wall (fig. 11). The short stub should be at the top right of the log. Center the log so that the gap to the firebox walls is the same at each side. 8.2 Place the front log on the retaining cradles between the rear and front burner tubes (fig. 12). Center the log so that the gap to the firebox walls is the same at each side. 8.
9. CHECK APPLIANCE OPERATION Depress the control knob. Turn counter clockwise until resistance is felt just before the piezo-electric ignition is activated. Keep the knob depressed for a few seconds to purge air from the gas lines. When it is judged that the air has been purged keep the knob depressed and turn to the ignition position. A spark should be produced which should ignite the pilot and cross lighting burner.
12. AERATION ADJUSTMENT (See Fig. 15) Natural gas appliances have adjustable shutters to control primary aeration on both rear and front burner tubes. Propane appliances have an adjustable shutter on the front burner tube only. The air holes are at the right side of the tubes. The appliances are supplied set at maximum aeration. For the majority of installations no adjustment will be necessary.
The Outer Case assembly can now be attached to the Heater. Locate the bolts and washers supplied, and fasten the Arched Lintel to the top surface of the Heat Engine as shown in Figure 20. Ensure the sheet metal components fit closely together, or adjust the Arched Lintel attachment points for height as shown in Figure 21 until they do so. Observe the correct operation of the door. Using the handle, lift the door slightly so that it is released from the “catch”. It should swing freely, and open/close easily.
MAKE FINAL CHECKS AND INSTRUCT OWNER Make sure that the logs have not been dislodged when fitting the case. Fit the Caution & Direction label to the right hand side of the case in the position shown in Figure 23. Recheck the operation of the fire on all control positions. Instruct the owner how to correctly operate the heater and especially point out the following:The heater has a pilot. To light the pilot, the control knob must be depressed and turned to the position.
. OPERATING PROCEDURE Full lighting instructions are given on the next pages. For your safety this heater is fitted with a Flame Supervision Device which will shut off the gas supply if for any reason the pilot flames go out. This device incorporates a fixed probe which senses heat from the pilot flame. If the probe is cool the device will prevent any gas flow unless the control knob is held down. When first turned on, the decorative flames will appear predominantly blue.
FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all round the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
LIGHTING INSTRUCTIONS STOP! Read the safety information on previous page. 1. Open the hinged access panel at rear right of case top 2. Turn the control knob on right side of heater clockwise to “OFF” position (marked l ). NOTE: Knob cannot be turned to off unless knob is pushed in partially. Do not force. 3. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information on previous page.
15. CLEANING All cleaning should be carried out when the heater is cold. Normally, the heater should only need dusting. Any stains on the glass can be removed with a non abrasive cleaner. Abrasive cleaners should never be used on the glass. 15.1 Cleaning the inside of the window: Open the case door fully. Remove the window unit by detaching the knurled screws at sides near the top. Lift the window unit assembly up to clear the locations at the bottom - see fig 7. In installation section of this manual.
SERVICING INFORMATION - (For qualified service engineers only) The repair parts are shown on the separate repair parts leaflet. Please always quote Part Number and description with requests for spares. TURN OFF THE GAS AND MAKE SURE THAT THE APPLIANCE IS COOL BEFORE COMMENCING ANY SERVICING. ALWAYS TEST FOR GAS SOUNDNESS AND CORRECT VENTING OF COMBUSTION PRODUCTS AFTER REFITTING THE APPLIANCE.
18.6 TO REMOVE THE PRESSURE REGULATOR 1.Remove the outer case see section 18.3. 18.8 TO REMOVE THE IGNITION SPARK GENERATOR 1.Remove the control valve and spark generator as 18.7 above. 2.Make sure that the valve is in the off position. 3.Remove the circlip holding the spark generator to the valve. Remove the generator. 4.Refit in the reverse order. Seal with pipe sealant. 18.9 TO REMOVE THE THERMOCOUPLE 1.Remove the outer case (see section 18.3) 2.Remove the window unit assembly 3.
Manufactured by HEATING BIRMINGHAM, ENGLAND Because our policy is one of constant development and improvement, details may vary slightly from those given in this publication. © Valor Ltd.
