Vanguard VYS18NWA Owner's Manual

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UNVENTED (VENT-FREE)

NATURAL 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 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.

• 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 sup-

plier, call the fire department.

— Installation and service must be per-

formed by a qualified installer, service

agency, or the gas supplier.

WARNING: Improper installation, adjust-

ment, alteration, service, or maintenance

can cause injury or property damage.

Refer to this manual for correct installa-

tion and operational procedures. For

assistance or additional information

consult a qualified installer, service

agency, or the gas supplier.

WARNING: This appliance is for in-

stallation only in a solid-fuel burning

masonry or UL127 factory-built fire-

place, or in an approved ventless fire-

box. It is design certified for these

installations in accordance with ANSI

Z21.11.2. Exception: Do not install this

appliance in a factory-built fireplace

that includes instructions stating it

has not been tested or should not be

used with unvented gas logs.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in

which it is installed. Provisions for adequate combustion and ventilation air must be

provided. Refer to

Air for Combustion and Ventilation

section on page 4 of this manual.

Patent Pending

FLAME-MAX

Models VYS18NWA,

VYS24NWA, and

VYS30NWA (Millivolt)

Remote Ready

VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED

AS VENTED DECORATIVE APPLIANCES

OWNER’S OPERATION AND INSTALLATION MANUAL

Save this manual for future reference.

PIL

OFF

AUTO

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

This appliance may be installed in an aftermarket*, permanently located, manufac-

tured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This

appliance is not convertible for use with other gases.

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Summary of VYS18NWA

Page 1
Unvented (vent-free) natural 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 vapors and liquids in the vicinity of this or an...
Page 2: Vanguard
2 105189 unvented natural gas log heater vanguard safety information carbon monoxide poisoning: early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be work- ing properly. Get fresh air at once! Have heater servi...
Page 3: Owner’S Manual
3 105189 owner’s manual au to of f on o f f p il ot o n h i l o h i l o au to on off co ol er w ar me r te mp product identification figure 1 - product identification flame-max ® vintage logs product features operation this heater is clean burning. It requires no outside venting. There is no heat lo...
Page 4: Vanguard
4 105189 unvented natural gas log heater vanguard providing adequate ventilation the following are excerpts from national fuel gas code ansi z223.1/nfpa 54, sec- tion 5.3, air for combustion and ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1. Unu...
Page 5: Owner’S Manual
5 105189 owner’s manual determining fresh-air flow for heater location determining if you have a confined or unconfined space use this work sheet to determine if you have a confined or unconfined space. Space: includes the room in which you will install heater plus any adjoining rooms with doorless ...
Page 6: Vanguard
6 105189 unvented natural gas log heater vanguard air for combustion and ventilation continued figure 3 - ventilation air from outdoors figure 2 - ventilation air from inside building outlet air ventilated attic outlet air inlet air inlet air ventilated crawl space to crawl space to attic or remove ...
Page 7: Owner’S Manual
7 105189 owner’s manual warning: never install the heater • in a bedroom or bathroom un- less installed as a vented ap- pliance, see page 10 • in a recreational vehicle • where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the heat...
Page 8: Vanguard
8 105189 unvented natural gas log heater vanguard minimum noncombustible material clearances if not using mantel note: if using a mantel, proceed to if using mantel. If not using a mantel, follow the information below. You must have noncombustible material(s) above the fireplace opening. Noncombus- ...
Page 9: Owner’S Manual
9 105189 owner’s manual installation continued figure 6 - minimum mantel clearances without using hood figure 7 - minimum mantel clearances when using hood continued mantel clearances in addition to meeting noncombustible mate- rial clearances, you must also meet required clearances between fireplac...
Page 10: Vanguard
10 105189 unvented natural gas log heater vanguard installing heater base assembly warning: you must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak. Warning: if installing in a sunken fireplace, special care is needed. You...
Page 11: Owner’S Manual
11 105189 owner’s manual aut o of f on o f f p il ot o n h i l o h i l o installation continued figure 11 - attaching flexible gas hose to heater figure 12 - attaching base assembly to fireplace floor fitting flexible gas hose (if allowed by local codes) masonry screw mounting flanges installing gwm...
Page 12: Vanguard
12 105189 unvented natural gas log heater vanguard installation continued warning: never use an open flame to check for a leak. Apply a noncorrosive leak de- tection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once. Warning: test all gas pip- ing and connections for leaks ...
Page 13: Owner’S Manual
13 105189 owner’s manual on position off position aut o of f on o f f p il ot o n h i l o h i l o it is very important to install the logs exactly as instructed. Do not modify logs. Only use logs supplied with heater. 1. Place one-piece log set on grate to fit as illustrated in figure 17. Make sure ...
Page 14: Vanguard
14 105189 unvented natural gas log heater vanguard o f f pil ot o n l o i h auto off on lighting instructions operating heater for your safety read before lighting warning: if you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or...
Page 15: Owner’S Manual
15 105189 owner’s manual ignitor electrode pilot burner figure 20 - pilot caution: do not try to adjust heating levels by using the equip- ment shutoff valve. Warning: make sure the se- lector switch is in the off posi- tion when you are away from home for long periods of time. Heater will come on a...
Page 16: Vanguard
16 105189 unvented natural gas log heater vanguard on off remote o ff pilo t o n l o i h thermocouple pilot burner figure 23 - correct pilot flame pattern figure 24 - incorrect pilot flame pattern inspecting burners check pilot flame pattern and burner flame patterns often. Pilot flame pattern figur...
Page 17: Owner’S Manual
17 105189 owner’s manual 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. Possible cause 1. Ignitor elect...
Page 18: Vanguard
18 105189 unvented natural gas log heater vanguard observed problem burner does not light after ods/pilot is lit delayed ignition burner burner backfiring during combustion slight smoke or odor during initial operation moisture/condensation noticed on windows heater produces a whistling noise when b...
Page 19: Owner’S Manual
19 105189 owner’s manual 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. Follow the gas supplier’s instructions. • if you c...
Page 20: Vanguard
20 105189 unvented natural gas log heater vanguard specifications vintage oak vintage oak 18" 24" and 30" btu (variable) 17,500/27,000 19,000/31,500 type gas natural gas only natural gas only ignition piezo piezo pressure manifold 3.5" w.C. 3.5" w.C. Inlet gas pressure (in. Of water) maximum 10.5" 1...
Page 21: Owner’S Manual
21 105189 owner’s manual cleaning and maintenance warning: turn off heater and let cool before cleaning. Caution: you must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied servi...
Page 22: Vanguard
22 105189 unvented natural gas log heater vanguard illustrated parts breakdown flame-max™ vintage oak log models (vys18nwa, vys24nwa, vys30nwa) 4 13 13 14 22 13 8 18 7 6 9 1 12 5 16 15 17 3 11 2 10 24 23 23 19 19 20 21 26 o f f p il ot o n h i l o o f f p il ot o n h i l o 25.
Page 23: Owner’S Manual
23 105189 owner’s manual parts list this list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under replacement parts on page 20 of this manual. Key part number for no. Vys18nwa vys24nwa vys30nwa description qty. 1 105185-01 105185-02 105185-03 log...
Page 24: Vanguard
24 105189 unvented natural gas log heater vanguard accessories purchase these heater accessories from your local dealer. If they can not supply these accessories, call desa international at 1-866-672-6040 for referral informa- tion. You can also write to the address listed on the back page of this m...
Page 25: Owner’S Manual
25 105189 owner’s manual notes _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________________________________________________________...
Page 26: Warranty Information
Limited warranty vent-free natural gas log heaters desa international warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all ap...