Desa VS24NR VS30NR user manual

User manual for the device Desa VS24NR VS30NR

Device: Desa VS24NR VS30NR
Category: Electric Heater
Manufacturer: Desa
Size: 0.66 MB
Added : 9/23/2013
Number of pages: 26
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Abstracts of contents
Summary of the content on the page No. 1

N
O
T
O
DESA INTERNATIONAL
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
Variable Manually-Controlled Models Also Design-Certified As
Vented Decorative Appliances
OWNER’S OPERATION AND INSTALLATION MANUAL
CFS18NR, VS18NR,
VS24NR VS30NR
®
18", 24", and 30"
Remote-Ready Models
WARNING: Improper installation, ad-
WARNING: If the information in this
justment, alteration, service, or mainte-
manual is not followed exactly, a fire or
nance can cause injury or property
explosion may result causing prop

Summary of the content on the page No. 2

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER • if you cannot reach your gas supplier, 12. Do not use a blower insert, heat ex- SAFETY call the fire department changer insert or other accessory not INFORMATION approved for use with this heater. 3. This heater shall not be installed in a bedroom or bathroom unless installed 13. This heater needs fresh, outside air ven- WARNINGS as a vented appliance (see Installing tilation to run properly. This heater has Damper Clamp Accessory, page 10).

Summary of the content on the page No. 3

T HI TEMP MAN LO ON AU O OFF STATUS OWNER’S MANUAL PRODUCT PRODUCT IDENTIFICATION FEATURES Crossover Log OPERATION Top Middle This heater is clean burning. It requires no Log Rear Log outside venting. There is no heat loss out a Left vent or up a chimney. Heat is generated by Front realistic, dancing yellow flames. This heater Branch is designed for vent-free operation with flue damper closed. It has been tested and ap- proved to ANS Z21.11.2 standard for Front unvented heaters. State and local

Summary of the content on the page No. 4

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code (ANS Z223.1, COMBUSTION AND 1992 Section 5.3) defines a confined space The following are excerpts from National VENTILATION as a space whose volume is less than 50 Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- 3 cubic feet per 1,000 Btu per hour (4.8 m per tion 5.3, Air for Combustion and Ventilation. kw) of the aggregate input rating of all WARNING: This

Summary of the content on the page No. 5

OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued 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 passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height = ___________________ c

Summary of the content on the page No. 6

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER AIR FOR 12" COMBUSTION AND VENTILATION Ventilation Continued Ventilation Grills Grills VENTILATION AIR Into Adjoining Room, Into Adjoining Or Option 2 Room, Remove Ventilation Air From Inside Option 1 Door into Building Adjoining This fresh air would come from an adjoining Room, unconfined space. When ventilating to an Option adjoining unconfined space, you must pro- vide two permanent openings: one within 3 12" of the ceiling and one within

Summary of the content on the page No. 7

OWNER’S MANUAL INSTALLATION AND INSTALLATION WARNING: Never install the CLEARANCES heater (Vent-Free Operation Only) • in a bedroom or bathroom un- NOTICE: This heater is intended less install as a vented appli- for use as supplemental heat. Use WARNING: Maintain the mini- ance, see page 10 this heater along with your pri- mum clearances. If you can, pro- • in a recreational vehicle mary heating system. Do not in- vide greater clearances from • where curtains, furniture, stall this heater as y

Summary of the content on the page No. 8

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER sory. Even if noncombustible material is If Using Mantel INSTALLATION more than 12", you may need the hood You must have noncombustible material(s) Continued accessory to deflect heat away from your above the fireplace opening. Noncombus- mantel shelf. See Figure 5 and Figures 6 and tible materials (such as slate, marble, tile, NOTICE: Manual control heaters 7, page 9 for minimum clearances. etc.) must be at least 1/2 inch thick. With may be use

Summary of the content on the page No. 9

OWNER’S MANUAL Mantel Shelf INSTALLATION 10" Underside of 8" Continued Mantel Shelf 6" 1 2 /2" MANTEL CLEARANCES In addition to meeting noncombustible mate- All minimum distances are rial clearances, you must also meet required in inches Minimum Non- clearances between fireplace opening and (A) Combustible mantel shelf. If you do not meet the clear- Material 1 1 12" 20" 24 /2" 27 /2" 30" ances listed below, you will need a hood. Determining Minimum Mantel Top of Fireplace Opening Clearances M

Summary of the content on the page No. 10

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued Damper Clamp INSTALLING DAMPER Damper CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appli- Damper Clamp ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. If your heater is a manually controlled model, you may use this heater as a vented product. Damper There are three reasons for operating your Damper heater in the vented

Summary of the content on the page No. 11

OWNER’S MANUAL CONNECTING TO GAS INSTALLATION CAUTION: Use only new, SUPPLY Continued black iron or steel pipe. Inter- nally-tinned copper tubing may 3. Mark screw locations through holes in NOTICE: A qualified service per- be used in certain areas. Check front panel of base (see Figure 12). If son must connect heater to gas your local codes. Use pipe of 1/2" installing in a brick-bottom fireplace, supply. Follow all local codes. diameter or greater to allow mark screw locations in mortar joint

Summary of the content on the page No. 12

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER Test Pressures Equal To or Less Than Pressure Testing Heater Gas INSTALLATION 1/2 PSIG Connections Continued 1. Close manual shutoff valve (see Fig- 1. Open manual shutoff valve (see Fig- ure 14). ure 14). CHECKING GAS 2. Pressurize supply piping system by either 2. Open main gas valve located on or near CONNECTIONS using compressed air or opening main gas gas meter. valve located on or near gas meter. 3. Make sure control knob of heater is in

Summary of the content on the page No. 13

OWNER’S MANUAL Front Log (#1L) INSTALLATION Top Middle Log (#4) Continued Front Log Notch (#1R) INSTALLING LOGS Hole WARNING: Failure to position Hole the parts in accordance with these diagrams or failure to use only Peg parts specifically approved with Grate this heater may result in property Prongs damage or personal injury. Metal Grate Bar Each log is marked with a number. These numbers will help you identify the log when Figure 16- Installing Front Logs installing. It is very important to

Summary of the content on the page No. 14

O N O T DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER LIGHTING OPERATING WARNING: Burners will come INSTRUCTIONS on automatically within one HEATER minute when the selector switch WARNING FOR YOUR SAFETY is in the ON position after the • If fireplace has glass doors, READ BEFORE pilot is lit. never operate this heater with LIGHTING glass doors closed. If you op- 4. Press in and turn control knob clock- erate heater with doors closed, wise to the OFF position (see WARNING: If you do not

Summary of the content on the page No. 15

OWNER’S MANUAL IMPORTANT: Do not leave the se- MANUAL LIGHTING OPERATING lector switch in the REMOTE posi- PROCEDURE HEATER tion when the pilot is not lit. This will 1. Follow steps 1 through 6 under Light- drain the battery. Continued ing Instructions, page 14. IMPORTANT: Be sure to press the 2. Depress control knob and light pilot 9. Slightly push in and turn control ON/OFF buttons on the hand-held with match. knob counterclockwise to remote control unit for up to 3 sec- 3. Keep control knob

Summary of the content on the page No. 16

P O F F O DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER 4. To turn the burners off when oper- OPERATING ating in the manual mode, press the HEATER OFF button. If operating in the auto mode, press the MAN button, then Continued press the OFF button. The pilot will remain lit. 3. Use the STATUS button on the hand- held remote control unit to see the IMPORTANT: To turn the pilot off, operation mode being used and the manually turn the control knob on the temperature setting selected. A red hea

Summary of the content on the page No. 17

OWNER’S MANUAL FRONT BURNER FLAME INSPECTING PATTERN BURNERS Figure 27 shows correct front burner flame Check pilot flame pattern and burner flame pattern. Figure 28 shows incorrect front patterns often. burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of PILOT FLAME PATTERN blue flame. Figure 25 shows a correct pilot flame pattern. Figure 26 shows an incorrect pilot flame WARNING: If yellow tipping pattern. The incorrect pilot flame is not touch- occurs, your

Summary of the content on the page No. 18

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER Pilot Air Inlet 1. Shut off the unit, including the pilot. CLEANING AND Hole Allow the unit to cool for at least thirty MAINTENANCE minutes. 2. Inspect burner, pilot, and primary air inlet holes on injector holder for dust WARNING: Turn off heater and dirt (see Figure 29). and let cool before cleaning. 3. Blow air through the ports/slots and Pilot Assembly holes in the burner. CAUTION: You must keep 4. Check the injector holder located at the

Summary of the content on the page No. 19

OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off and un- CAUTION: Never use a wire, plug heater and let cool before needle, or similar object to clean Note: For additional help, visit DESA servicing. Only a qualified ser- ODS/pilot. This can damage ODS/ International’s technical service web site vice person should service and pilot unit. at www.desatech.com. repair heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor butto

Summary of the content on the page No. 20

DESA INTERNATIONAL UNVENTED NATURAL GAS LOG HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY One or both burners do not light after ODS/ 1. Inlet gas pressure is too low 1. Contact local natural gas company pilot is lit 2. Burner orifice(s) clogged 2. Clean burner(s) (see Cleaning and Main- tenance, page 18) or replace burner orifice(s) 3. Mislocated crossover tube 3. Contact qualified service person 4. Burner orifice(s) diameter is too small 4. Replace burner orifice(s) 5


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