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VENT-FREE
FIREPLACE SYSTEMS
INSTALLATION AND
OPERATING INSTRUCTIONS
MODEL: DIS33G
Natural Gas or Propane/LPG
Control Type: Milli-Volt and T-Stat
WW ARNINGS ARNINGS
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 fl ammable
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
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CONTENTS Checking Gas Pressure .........................................18 Important Safety Information ..................................3 Electrical Wiring (Milli-Volt) ...................................19 Product Features ......................................................5 Operation ..............................................................5 Electrical Wiring (Fan) ............................................21 Log Placement ........................................................22
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IMPORTANT SAFETY INFORMATION INSTALLER OWNER Please leave these instructions with the appliance. Please retain these instructions for future reference. IMPORTANT Read these instructions carefully before installing or trying to operate this vent-free gas heater. • Any change to this heater or its controls can be dangerous. • Improper installation or use of the heater can cause serious injury or death from fi re, burns, explosion or carbon monoxide poisoning. • Do not allow fans to blow directly i
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IMPORTANT SAFETY INFORMATION Continued from page 3 THIS APPLIANCE MAY BE INSTALLED IN AN AFTERMARKET, PERMANENTLY 16. Keep room area clear and free from combustible materi- als, gasoline and other flammable vapors and liquids. LOCATED, MANUFACTURED (MOBILE) HOME, WHERE NOT PROHIBITED BY 17. Unvented gas heaters are a supplemental zone heater. They LOCAL CODES. are not intended to be the primary heating appliance. THIS APPLIANCE IS ONLY FOR USE 18. Unvented gas heaters emit moisture into t
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PRODUCT FEATURES Optional Face Plate Fireplace Screen Optional T-stat Sensor On/Off Switch Piezo Ignitor Blower Control Knobs Figure 1 - Unvented Gas Heater with Control Access Door Open Your vent-free fireplace must be mounted to the floor or the fireplace hearth. OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency. 23D8020 5
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PRODUCT FEATURES AND SPECIFICATIONS NATURAL GAS Milli-Volt and T-Stat Pressure Regulator Pressure Setting: 3.5" w.c. Pilot Regulator: 3.5" w.c. Gas Inlet Pressure: Max. 10 1/2" w. c. Min. 5" w.c. Gas Rate Model Number Control Max BTU/HR Min BTU/HR DIS33NTG Millivolt 28,000 19,000 DIS33NVG T-Stat 28,000 19,000 PROPANE/LPG Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c. Milli-Volt and T-Stat Pressure Regulator Pressure Setting: 10" w.c. Gas Inle
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GETTING STARTED MAKE SURE YOU HAVE RECEIVED ALL PARTS Check your packing list to verify that all listed parts have been received. You should have the following: • Installation/Operating instructions • Black Louvers (5) • 33" unvented gas heater with brick panels. • Canopy • Volcanic rock and rock wool • Two (2) anchoring screws • Mounting screws for canopy • Log box (refer to installation instructions) Accessory face plates available to finish the insert. • DIFACESM Black small face 33"H
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GENERAL INSTALLATION INFORMATION REMOVING SCREEN Remove fireplace screen by pushing screen frame panel up and out. See Figure 2. Do not operate the unit without the screen frame panel and canopy installed. NOTE: Fireplace screen must be removed to access log box and to install canopy. Figure 2 - Removing Fireplace Screen INSTALLING CANOPY 1. Remove the fireplace screen as described in the previous section. 2. Align canopy with the holes in the top frame assembly. See Figure 3. 3. Install
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GENERAL INSTALLATION INFORMATION CODES Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can be obtained from… American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 or National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 Do not install the heater … • Where curtains, furniture, clothing, or other fl ammable objects are less than 42" from the front of the heater. • In high tr
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GENERAL INSTALLATION INFORMATION Counter Fireplace H W Figure 4 - Example of a Large Room with 1/2 Wall Divider The following formula can be used to determine the maximum heater rating per the definition of unconfined space: (L1 + L2) Ft x (W) Ft x (H) Ft x 1000 BTU/Hr = 50 Consider two connecting rooms with an open area between, with the following dimensions: 1 L1 = 15 /2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft. 1 (15 /2 + 12) x (12) x (8) x 1000 = 52800 BTU/Hr BTU/Hr = 50 If there were
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42" Minimum 9" 9" Minimum Minimum 3 22/4" 7 23/8" A 33" B CLEARANCES AND HEIGHT REQUIREMENTS The dimensions shown in Figures 5 and 8 and defi ned in the fi replace manufacturer's instructions are minimum clearances to maintain when installing this heater. Left and right clearances are determined when facing the front of the heater. Follow these instructions carefully to ensure safe installation. Failure to follow instructions exactly can create a fi re hazard. NOTE: Clearances are necessary to c
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CLEARANCES and HEIGHT REQUIREMENTS HEAT RESISTANT MATERIAL (MINIMUM REQUIRE- MENTS) WITH NO WOODEN MANTEL OR OTHER COM- BUSTIBLE PROJECTION Heat resistant material (minimum requirements) with wooden mantel or other combustible projection: No combustible materials To install the heater with a wooden mantel shelf or other combustible within 8” of opening. projection above, first measure the heat resistant material shown in Do not cover louvers. Figure 7. 12" Hood 10" 8" 26" Example: A mantel
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CLEARANCES and HEIGHT REQUIREMENTS The gas log heater must be installed at least 5" above any combustible flooring material, such as carpeting or tile, which is closer than 14" to the base of the fireplace. See Figure 10. Combustible Material 5" Non-combustible Material 1” Figure 10 - Minimum Clearance above Combustible Flooring 23D8020 13
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FIREPLACE FRAMING If unit is to be “built in,” fireplace framing can be built 5 22 /8" before or after the appliance is set in place. BE SURE THAT ALL PACKING MATERIAL HAS BEEN REMOVED FROM THE UNDERSIDE OF THE UNIT PRIOR TO SETTING THE FIREBOX IN PLACE. Construct fireplace framing following Figures 16" 11 through 14. See Figure 6 on page 11 for fireplace dimensions. The framing headers may not rest directly on top of the firebox. 1 33 /2" The fireplace may be installed directly on a co
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SECURING HEATER TO FLOOR NOTE: Clearance requirements as detailed in “Clearances and Height Requirements” section of this manual must be met before securing heater in place. To prevent movement, the heater must be secured to the floor or hearth. 1. Lift off louvers and remove the screen. 2. Remove log set. 3. To remove the grate and base assembly, take out two screws as shown in Figure 15. 4. Lift grate and base assembly out of the fire- box. 5. Secure the firebox with two anchoring sc
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CONNECTING THE GAS NOTICE: A qualifi ed gas appliance installer must connect the heater to the gas supply. Consult all local codes. Use new black or steel pipe. Internally tinned copper or copper tubing can be used per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfi de limits, and where permitted by local codes. Gas piping system must be sized to provide minimum inlet pressure (listed on Data Plate) at the maximum fl ow rate (BTU/Hr). Undue pressure loss will occur if th
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CONNECTING THE GAS CHECK GAS TYPE: The gas supply must be the same as stated on heater's rating plate. Located behind the control access door (Figure 1, page 5). If the gas supply is different, DO NOT INSTALL the heater. Contact your dealer for the correct model. Connecting to the wrong gas type may result in property damage or personal injury. Connecting directly to an unregulated propane/L.P.G. tank can cause an explosion. To reach factory installed flex line, go through access door on ri
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CHECKING GAS PRESSURE The stainless flex line is on the right side facing the fireplace and can 3 1 connect to either a /8 NPT female or /2 NPT male pipe. To connect from Connecting directly to an the opposite side, route the pipe under the rear portion of the unit. unregulated propane/LPG tank can cause an explosion. Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com- pleting connection. DO NOT USE AN OPEN FLAME. C
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ELECTRICAL WIRING (MILLI-VOLT) The milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. ODS On/Off Pilot Switch ODS Pilot Wall Millivolt Switch Valve On/Off Spade Switch Terminal TH = 3 TP = 1 TP/TH = 2 See Figure 20 and installation instructions provided with optional wall swi
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ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER (Figure 21) THESE INSTRUCTIONS SUPERCEDE THE SECTION ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. 1. Remove cover on control panel to show opening for remote Remote receiver. Receiver 2. Connect the remote connectors located in the unit. 3. Slide remote receiver in the opening of control panel. Use two screws provided to attach remote receiver to the control panel. 4. Replace
