Hearth Sense VF18LA-2 Manual
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Hearth Sense VF18LA-2 Manual

Ambilog vent-free gas log heater
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AMBILOG VENT-FREE GAS LOG HEATER
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 va-
pors 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.
• 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 reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Questions, problems, missing parts? Before returning to your retailer, call
our customer service department at 1-866-573-0674, 8:00 am - 4:30 pm CST,
Monday through Friday or email customerservice@usaprocom.com
MODELS
VF18NA-2
VF18LA-2
VF24NA-2
VF24LA-2
PFS
®
US

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Summary of Contents for Hearth Sense VF18LA-2

  • Page 1 AMBILOG VENT-FREE GAS LOG HEATER MODELS VF18NA-2 VF18LA-2 VF24NA-2 VF24LA-2 ® 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 va- pors and liquids in the vicinity of this or any other appliance.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Specifications ..........3 Operation ..........19 Safety ............3 Inspecting Burners........22 Product Features ........5 Care And Maintenance ......23 Local Codes..........5 Troubleshooting ........24 Unpacking..........5 Replacement Parts ........27 Qualified Installing Agency ......6 Technical Services ........

  • Page 3: Specifications

    Altered burner patterns WARNING: Models VF18NA-2 can cause sooting. and VF24NA-2 are equipped for natural gas. Models VF18LA-2 WARNING: Any change to and VF24LA-2 are equipped for this heater or its controls can propane/LP gas. Field conver- be dangerous.
  • Page 4 SAFETY 5. If fireplace has glass doors, never operate WARNING: Do not place this heater with glass doors closed. If you clothing or other flammable operate heater with doors closed, heat will build-up inside fireplace and cause glass material on or near the appli- to burst.

  • Page 5: Product Features

    PRODUCT FEATURES This log set has been tested and approved to ANSI Z21.11.2 standard for Unvented Heaters and can be operated with the flue damper closed. State and local codes in some areas prohibit the use of vent-free heaters. SAFETY PILOT PIEZO IGNITION SYSTEM This heater has a pilot with an Oxygen Deple- This heater is equipped with an electronic...

  • Page 6: Qualified Installing Agency

    QUALIFIED INSTALLING AGENCY Only a qualified agency should install and in such work; that is familiar with all precau- replace gas piping, gas utilization equipment tions required; and that has complied with or accessories, and repair and equipment ser- all the requirement of the authority having vicing.
  • Page 7 AIR FOR COMBUSTION AND VENTILATION Unusually Tight Construction The air that leaks around doors and windows c. caulking or sealants are applied to areas may provide enough fresh air for combustion such as joints around window and door and ventilation. However, in buildings of un- frames, between sole plates and floors, usually tight construction, you must provide between wall-ceiling joints, between wall...
  • Page 8 AIR FOR COMBUSTION AND VENTILATION The space in the above example is a confined Btu/Hr the space can support, the space space because the actual Btu/Hr used is more is an unconfined space. You will need no than the maximum Btu/Hr the space can sup- additional fresh air ventilation.

  • Page 9: Installation

    INSTALLATION NOTICE: This heater is intended WARNING: Never install the for use as supplemental heat. heater Use this heater along with your • in a bedroom or bathroom primary heating system. Do not • in a recreational vehicle install this heater as your pri- •...
  • Page 10 INSTALLATION IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form too much moisture. See Air for Combustion and Ventilation, pages 6 through 8. Before beginning assembly or operation of the product, make sure all parts are pres- ent.
  • Page 11 INSTALLATION you must have noncombustible material be- NOTICE: This heater may be hind it. Noncombustible material must extend used as a vented product. If so, at least 8" up. If noncombustible material is you must always operate log set less than 12", you must install the fireplace hood accessory.
  • Page 12 INSTALLATION FLOOR CLEARANCES A. If installing appliance on the floor level, B. If combustible materials are less than 14" you must maintain the minimum distance to the fireplace, you must install appliance of 14" to combustibles (see Figure 8). at least 5" above the combustible flooring (see Figure 9).
  • Page 13 INSTALLATION INSTALLING HEATER BASE ASSEMBLY Connecting Masonry WARNING: You must secure Wire Screw this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater Connecting Port may cause a gas leak. WARNING: If installing in a sunken fireplace, special care is needed.
  • Page 14 INSTALLATION CONNECTING TO GAS SUPPLY WARNING: A qualified ser- CAUTION: For natural gas, vice technician must connect check your gas line pressure heater to gas supply. Follow all before connecting heater to gas local codes. line. Gas line pressure must be no greater than 10.5"...
  • Page 15 INSTALLATION Typical Inlet Pipe Diameters Install sediment trap in supply line as shown Use 1/2" black iron pipe or greater. Installa- in Figure 13. Place sediment trap where it is tion must include an equipment shutoff valve, within reach for cleaning. Place sediment trap union, and plugged 1/8"...
  • Page 16 INSTALLATION CHECKING GAS CONNECTIONS 3. Check all joints from gas meter to equip- WARNING: Test all gas piping ment shutoff valve for natural gas or and connections, internal and propane/LP supply to equipment shutoff external to unit, for leaks after valve for propane/LP (see Figure 16 or 17).
  • Page 17 INSTALLATION ELECTRICAL WIRING (MILLIVOLT) CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous opera- tion. Verify proper operation after servicing. Note: The millivolt valve is a self-powered combination gas control that does not require 110 VAC to operate.
  • Page 18 INSTALLATION INSTALLING LOGS 6. Insert the pin on the bottom of log #6 into WARNING: Failure to posi- recessed hole in log #1, with the other end tion the parts in accordance placed on log #2. with these diagrams or failure 7.

  • Page 19: Operation

    OPERATION Avoid any drafts that alter burner flame The initial break-in operation should last two patterns. Do not allow fans to blow directly to three hours with the burner at the high- into the fireplace. Do not place a blower inside est setting.
  • Page 20 OPERATION Note: The first time that the heater is 9. This valve is equpped with a HI/LO fea- operated after connecting the gas supply, ture. Set fireplace input as desired. the control knob should be pressed for 10. If heater will not operate, follow the instruc- about thirty (30) seconds.
  • Page 21 OPERATION OPTIONAL HAND-HELD REMOTE OPERATION Note: All remote control accessories must Note: The burner may light if hand-held re- be purchased separately. Follow instructions mote was on when selector switch was last included with the remote control. turned off. You can now turn the burner on and off with the hand-held remote control unit.

  • Page 22: Inspecting Burners

    INSPECTING BURNERS IMPORTANT: Owner’s should check pilot flame pattern and burner flame pattern often. Incorrect flame patterns indicate the need for cleaning (see Care and Maintenance, page 23) or service. WARNING: Only a qualified service person should service and repair heater. This includes maintenance requiring replacement or alteration of components.

  • Page 23: Care And Maintenance

    CARE AND MAINTENANCE WARNING: Turn off heater and let cool before servicing. CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service techni- cian.

  • Page 24: Troubleshooting

    TROUBLESHOOTING 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 supplier’s instructions.
  • Page 25 TROUBLESHOOTING Problem Possible Cause Corrective Action ODS/pilot lights but flame 1. Control knob is not fully 1. Press in control knob fully. goes out when control pressed in. knob is released. 2. Control knob is not pressed 2. After ODS/pilot lights, keep in long enough.
  • Page 26 TROUBLESHOOTING Problem Possible Cause Corrective Action Slight smoke or odor 1. Residues from manufactur- 1. Problem will stop after a few during initial operation. ing process. hours of operation. Heater produces a whis- 1. Turning control knob to high 1. Turn control knob to low tling noise when burner position when burner is cold.

  • Page 27: Replacement Parts

    REPLACEMENT PARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. • Model and serial number of your heater If they can’t supply original replacement •...

  • Page 28: Parts

    PARTS MODELS VF18NA-2, VF18LA-2, VF24NA-2 AND VF24LA-2 14-6 14-4 14-7 14-1 14-3 14-2 14-5 14-8(1) 14-8(2) 14-8(3) 14-8(4) 14-8(5) 14-8(6) www.usaprocom.com 200067-01A...
  • Page 29 PARTS MODELS VF18NA-2, VF18LA-2, VF24NA-2 AND VF24LA-2 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 27 of this manual. ITEM VF18NA-2 VF18LA-2 VF24NA-2 VF24LA-2 DESCRIPTION 0820637 0820636...
  • Page 30 NOTES ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ www.usaprocom.com 200067-01A...
  • Page 31 NOTES ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ www.usaprocom.com 200067-01A...

  • Page 32: Warranty

    WARRANTY KEEP THIS WARRANTY Model _______________________________ Serial No. ____________________________ Date Purchased _______________________ Keep receipt for warranty verification. REGISTER YOUR PRODUCT AT WWW.USAPROCOM.COM IMPORTANT: We urge you to register your product within 10 days of date of installation, complete with entire serial number which can be found on the rating plate. Please fill out the warranty infor- mation above for your personal records.

This manual is also suitable for:

Vf18na-2Vf24na-2Vf24la-2

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