Page 2 - Air
www.desatech.com 119421-01A 2 SAFETy INFORMATION WARNING: Improper in - stallation, adjustment, al - teration, service or main-tenance can cause in- jury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or addi-tional information con- sult ...
Page 3 - known to the state of California; Early signs of carbon; Get fresh; this heater or its controls can; SAFETy INFORMATION; Continued; will remain hot for a time after
www.desatech.com 119421-01A WARNING: This product con - tains and/or generates chemicals known to the state of California to cause cancer or birth defects or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely b e f o r e t r y i n g t o a s s e m b l e , operate or...
Page 4 - LOCAL CODES; The National Fuel Gas Code, ANSI; State of Massachusetts:
www.desatech.com 119421-01A 4 4. If you smell gas • shut off gas supply • do not try to light any appliance • do not touch any electrical switch; do not use any phone in your building • immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions • if you cannot...
Page 5 - OpERATION; WARNING: This heater shall
www.desatech.com 119421-01A 5 Figure 1 - Vent-Free Gas Log Heater Base Grate Log Set Control Knob Burner Piezo Ignitor PRODUCT IDENTIFICATION PRODUCT FEATURES OpERATION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated b...
Page 6 - as construction where:; Ventilation Air From Outdoors; If your home does not meet all of the three; Determining; AIR FOR COMbUSTION
www.desatech.com 119421-01A 6 Exhaust fans, fireplaces, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances. pROVIDING ADEQUATE VENTILATION The follo...
Page 7 - WARNING: If the area in; National Fuel Gas Code,; VENTILATION AIR; Ventilation Air From Inside Building; National Fuel Gas; Figure 3 - Ventilation Air from Outdoors; Ventilation Air From Outdoors; Section 5.3, Air for Combustion and Ventilation
www.desatech.com 119421-01A 7 Example: Gas water heater ____________ Btu/Hr Vent-free fireplace + ___________ Btu/Hr Total = ___________ Btu/Hr 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used. _________ Btu/Hr (maximum the space can support) _________ Btu/Hr...
Page 8 - INSTALLATION; CHECK GAS TYpE
www.desatech.com 119421-01A 8 INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri - mary heat source. If you have a central heating system, you may run system’s circulating blower wh...
Page 9 - INSTALLATION AND CLEARANCES; WARNING: Maintain the; MINIMUM FIREpLACE CLEARANCE; Figure 4 - Minimum Clearance for; NOTICE: Manual control heaters; Installing Damper; Clearances; If Using
www.desatech.com 119421-01A 9 INSTALLATION AND CLEARANCES (Vent-Free Operation Only) WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling and adjoining wall. MINIMUM FIREpLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling 18" 16"...
Page 10 - Accessory for Vented Operation,; MANTEL CLEARANCES; Determining Minimum Mantel Clearance; Follow all minimum clearances; Noncombustible Requirements for
www.desatech.com 119421-01A 10 If Using Mantel You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" thick. With sheet metal, you must have non - combustible material behind it. Noncombustible mate...
Page 11 - FLOOR CLEARANCES; see
www.desatech.com 119421-01A 11 NOTICE: If your installation does not meet the minimum clear- ances shown, you must do one of the following: • operate the logs only with the flue damper open • raise the mantel to an accept - able height • remove the mantel INSTALLATION Continued Figure 7 - Minimum Ma...
Page 12 - CAUTION: Do not remove the; Height; Figure 11 - Attaching Flexible Gas Hose
www.desatech.com 119421-01A 12 See chart below for minimum permanent flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times. INSTALLATION Continued INSTALLING HEATER BASE ASSEMBLY CAUTION: Do not remove the data plates attached to the...
Page 13 - Figure 12 - Attaching Base Assembly to; CONNECTING TO GAS SUppLY; WARNING; Installation Items Needed; • sediment trap
www.desatech.com 119421-01A 1 INSTALLATION Continued Figure 12 - Attaching Base Assembly to Fireplace Floor - Dual Burner Model Masonry Screw Mounting Bracket CONNECTING TO GAS SUppLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. W...
Page 14 - Figure 14 - Gas Connection; NATURAL; CHECKING GAS CONNECTIONS; and external to unit, for leaks; necting to Gas Supply
www.desatech.com 119421-01A 14 Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 14). IMPORTANT: Install equipment valve in an acces - sible location. The equi...
Page 15 - Figure 15 - Equipment Shutoff Valve; INSTALLING LOGS; With the heater set to HI, check
www.desatech.com 119421-01A 15 INSTALLATION Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 15). 2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or...
Page 16 - Tab
www.desatech.com 119421-01A 16 INSTALLATION Continued Figure 19 - Installing Middle Log #2 Figure 20 - Installing Back Log #3 Middle Log (#2) Tab Burner U-Shaped Slot Hole in Grate Base Pins Burner Back Log (#) Figure 18 - Installing Front Log #1 Front Log (#1) GrateFingers Grate Base 3. Locate pins...
Page 17 - OPERATING HEATER; FOR YOUR SAFETY; low these instructions exactly,; LIGHTING
www.desatech.com 119421-01A 17 OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per - sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. Wh...
Page 18 - just heating levels by using the; Shutting Off Heater; Lighting; WARNING: Do not operate
www.desatech.com 119421-01A 18 Figure 22 - Control Knob and Ignitor Button Location Ignitor Button Control Knob Figure 23 - Pilot Thermocouple Pilot Burner IgnitorElectrode VARIABLE CONTROL OpERATION The variable control valve can be set to any heat setting and flame height desired, by simply turnin...
Page 19 - INSPECTING bURNERS; pILOT FLAME pATTERN; To Turn Off Gas to Ap-; BURNER pRIMARY AIR HOLES; Figure 24 - Correct Pilot Flame Pattern; CLEANING AND; WARNING: Turn off heater
www.desatech.com 119421-01A 19 INSPECTING bURNERS Check pilot flame pattern and burner flame pat - terns often. pILOT FLAME pATTERN Figure 24 shows a correct pilot flame pattern. Figure 25 shows an incorrect pilot flame pattern. The incor - rect pilot flame is not touching the thermocouple. This wil...
Page 20 - LOGS
www.desatech.com 119421-01A 20 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. Inspect burner, pilot and primary air inlet holes on injector holder for dust and dirt (see Figure 26). 3. Blow air through the ports/slots and holes in the burner. 4. Che...
Page 21 - TROUbLESHOOTING; WARNING: Turn off heater and let cool before servicing. Only a; pOSSIBLE CAUSE; Cleaning; OBSERVED pROBLEM
www.desatech.com 119421-01A 21 TROUbLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting i...
Page 22 - damaged; REMEDY; pilot is lit
www.desatech.com 119421-01A 22 TROUbLESHOOTING Continued pOSSIBLE CAUSE 1. Burner orifice clogged 2. Inlet gas pressure is too low 1. Manifold pressure is too low 2. Burner orifice clogged 1. Burner orifice is clogged or damaged 2. Damaged burner 3. Gas regulator defective 1. Not enough air 2. Gas r...
Page 23 - IMPORTANT; odors
www.desatech.com 119421-01A 2 TROUbLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Fol - low the gas s...
Page 24 - When Gas pressure Is Too Low; REPLACEMENT PARTS; pARTS UNDER WARRANTY
www.desatech.com 119421-01A 24 SPECIFICATIONS MODEL HDVF3018P • Rating: 16,000/30,000 Btu/Hr • Gas Type: Propane/LP • Ignition: Piezo • Manifold Pressure: 8.0" W.C. • Inlet Gas Pressure (inches of water): • Max. 14", Min.* 11" • Shipping Weight: 25 lbs. *For the purpose of input adjustme...
Page 25 - ACCESSORIES; EQUIpMENT SHUTOFF VALVE
www.desatech.com 119421-01A 25 ACCESSORIES Purchase these fireplace accessories from your lo - cal dealer. If they can not supply these accessories, call DESA Heating Products’ Sales Department at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of t...
Page 26 - ILLUSTRATED PARTS bREAkDOWN
www.desatech.com 119421-01A 26 ILLUSTRATED PARTS bREAkDOWN VARIABLE MANUALLY-CONTROLLED MODELS HDVF3018P AND HDVF3018N 24 21 11 12 13 4 6 3 2 21 8 21 7 10 9 16 15 17 19 22 18 14 19 23 20 18 5 1
Page 27 - PARTS LIST; listed under; Painted Base Assembly; Lava Rock
www.desatech.com 119421-01A 27 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. KEY NO. PART NO. DESCRIpTION QTY. 1 119420-01 Front Log (#1) • • 1 2 119420-02 Middle Log (#2) • ...
Page 28 - Date Purchased; WARRANTy INFORMATION; kEEP THIS WARRANTy; NOT A UPC; LIMITED WARRANTy
Model Serial No. Date Purchased WARRANTy INFORMATION kEEP THIS WARRANTy Always specify model and serial numbers when communicating with the factory.We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no...