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Desa VMH26NR8 manual

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Table of contents for the manual

  • Page 1

    For more information, visit www .desatech.com W ARNING: If the information in this manual is not           [...]

  • Page 2

    www .desatech.com 1 131 10-01H 2 SAFETy T ABLE OF CONTENTS Safety .................................................................. 2 Product Identication ........................................... 4 Optional Remote Control Accessories ................. 4 Local Codes......................................................... 4 Product Features .[...]

  • Page 3

    www .desatech.com 1 131 10-01H 3 Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this replace.           ?[...]

  • Page 4

    www .desatech.com 1 131 10-01H 4 No te : Du ri ng in it ia l op er at io n, sl ig ht sm ok in g co ul d occ ur d ue to lo g cur in g and  rep la ce burning manufacturing residues. 8. To prevent the creation of soot, follow the instructions in Cleaning and Mainte- nance, page 28. 9. Before using furniture polish, wax, carpet cleaner , or similar [...]

  • Page 5

    www .desatech.com 1 131 10-01H 5 State of Massachusetts: The inst all ati on must be made by a licensed plumber or gas t - ter in the Commonwealth of Massachusetts. Sellers of unvented propane or natural gas-red supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit. V ent-f ree gas pr oduc ts are[...]

  • Page 6

    www .desatech.com 1 131 10-01H 6 ASSEMBL y Continued Figure 3 - Assembling Hood Hood T ab Sheet Metal Screws Louver Bafe Firebox T op Hood Hood T abs AIR FOR COMB USTION AND VENTILA TION W ARNING: This heater shall         ?[...]

  • Page 7

    www .desatech.com 1 131 10-01H 7                         ?[...]

  • Page 8

    www .desatech.com 1 131 10-01H 8 B. V ent room directly to the outdoo rs. See V entilation Air From Outdoors . C. Install a lower Btu/Hr replace, if lower Btu/Hr size makes room unconned. If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconned space. Y ou will need no additional fresh air v[...]

  • Page 9

    www .desatech.com 1 131 10-01H 9 INST ALLA TION NOTICE: This heater is intended            ?[...]

  • Page 10

    www .desatech.com 1 131 10-01H 10  W ARNING: Maintain the minimum clearances shown             [...]

  • Page 11

    www .desatech.com 1 131 10-01H 11 26 7 / 8 " 26 7 / 8 " 3/4" Off The Floo r Minimum 10 1 / 2 " Figure 7 - Rough Opening for Installing in Wall 36 5 / 8 " 25 7 / 8 " 51 3 / 4 " 26 7 / 8 " Figure 8 - Rough Opening for Installing in Corner INST ALLA TION Continued Note: If not installing blower accessory , you m[...]

  • Page 12

    www .desatech.com 1 131 10-01H 12 13" 16" 19" 21" 2 1 / 2 " 6" 8" 10" Note: A ll vertical measurements are from top of fireplace opening to bottom of mantel shelf. All measurements are in inches. Mantel Shelf Side of Firebox INST ALLA TION Continued W ARNING: Do not allow ?[...]

  • Page 13

    www .desatech.com 1 131 10-01H 13 INST ALLA TION Continued 4. Route exible gas line through access hole in hearth base. 5. Center cabinet mantel on hearth base (see Figure 12). Make sure mantel is ush against wall and centered left to right on base. 6. Use screws provided with mantel acces - sory to attach mantel assembly to base (see mantel [...]

  • Page 14

    www .desatech.com 1 131 10-01H 14                 [...]

  • Page 15

    www .desatech.com 1 131 10-01H 15 3 2 1 INST ALLA TION Continued Figure 16 - Installing Blower Bracket Assembly Wire Harness Blower Bracket Assembly Screw Wire Harness Switch Bafe Wiring Routing Hole in Bafe Switch Plate Blue Red V alve Cover Shield Snap Bushing Black Blower Mounting Holes Lower Louver Door Power Cord Figure 17 - Wiring Diagr[...]

  • Page 16

    www .desatech.com 1 131 10-01H 16 INST ALLA TION Continued Extension Cord Use extension cord if needed. The cord must have a three-prong, grounding plug and a three-hole receptacle. Make sure cord is in goo d sh ape. It must b e heavy eno ugh to car ry the current needed. An undersized cord will cause a drop in line voltage. This will result in los[...]

  • Page 17

    www .desatech.com 1 131 10-01H 17 INST ALLA TION Continued Propane/LP Supply T ank                   [...]

  • Page 18

    www .desatech.com 1 131 10-01H 18 INST ALLA TION Continued * Purchase the optional CSA design-certied equipment shutoff valve from your dealer . Figure 22 - Gas Connection CSA Design-Certied Equipment Shutoff V alve With 1/8" NPT T ap* 3" Minimum Approved Flexible Gas Line Pipe Nipple Cap T ee Joint  Fr[...]

  • Page 19

    www .desatech.com 1 131 10-01H 19 Figure 26 - Checking Gas Joints (Propane/LP Only) Propane/LP Supply T ank Equipment Shutoff V alve Equipment Shutoff V alve Gas Meter Figure 27 - Checking Gas Joints (Natural Gas Only) Gas Control V alve Gas Control V alve INST ALLA TION Continued 2. Pressuri ze supply piping system by either opening propane/LP sup[...]

  • Page 20

    www .desatech.com 1 131 10-01H 20  CONNECTIONS 1. Open equipment shutoff valve (see Figure 25, page 19). 2. Open main gas valve located on or near gas meter for natural gas or open pro - pane/LP supply tank valve. 3. Make sure control knob of replace is [...]

  • Page 21

    www .desatech.com 1 131 10-01H 21 Fi gu re 3 1 - Ins tall ing Batt ery in H and- Held Remote Control Unit 9-V olt Battery Battery Housing Battery Cover T erminal Wires Remote Control Unit Figure 33 - Back V iew of Thermostat Base Feed wires through rectangular slots W R Figure 34 - Thermostat Base T erminals “W” and “R” T erminal “W” T [...]

  • Page 22

    www .desatech.com 1 131 10-01H 22 INST ALLA TION Continued Log Shoulder Screw Screen 8 . Move temperature adjustment back and forth to insure bimetal is free from restrictions. 9. Replace cover onto base. (Upon installa- tion, thermostat must be allowed to sta - bilize at room temperature for a minimum of 30 minutes for proper operation). 10. Set s[...]

  • Page 23

    www .desatech.com 1 131 10-01H 23 OPERA TION FOR YOUR SAFETY READ BEFORE LIGHTING W ARNING: If you do not fol- low these instructions exactly ,           - ?[...]

  • Page 24

    www .desatech.com 1 131 10-01H 24 OPERA TION Continued Note: If pilot does not stay lit, contact a qualied service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure. 8. Keep control knob pressed in for 30 sec - onds after lighting pilot. After 30 seconds, [...]

  • Page 25

    www .desatech.com 1 131 10-01H 25 Figure 39 - Setting the Selector Switch, Control Knob, and Flame Adjustment Knob for Hand-Held Remote Operation O F F P I L O T L O I H REMOTE OFF ON O N Flame Adjustment Knob Control Knob Selector Switch in REMOTE Position (Optional Hand-Held Remote Control) Figure 40 - On/Off Hand-Held Remote Control Unit ?[...]

  • Page 26

    www .desatech.com 1 131 10-01H 26 Safety Features Whe n away fro m home for an ext ende d peri od of time or as a child safety feature to prevent acc ide ntal ignit ion of the repla ce, the recei ver ON/OFF/REMOTE switch should be in the OFF position. Auto Shutoff Feature  If the average room temperature reaches a range of 82° F (28° [...]

  • Page 27

    www .desatech.com 1 131 10-01H 27 INSPECTING B URNERS Figure 43 - Correct Pilot Flame Pattern (Propane/LP Shown) Pilot Burner Thermocouple Figure 44 - Incorrect Pilot Flame Pattern (Propane/LP Shown) Pilot Burner Thermocouple Check pilot ame pattern and burner ame patterns often.    Fig[...]

  • Page 28

    www .desatech.com 1 131 10-01H 28 CLEANING AND MAINTENANCE                [...]

  • Page 29

    www .desatech.com 1 131 10-01H 29 CLEANING AND MAINTENANCE Continued Switch Black Auto Off On Red Red White Thermopile Gas Control TPTH TH TPTH TP LOG SET • If you remove one-piece log set for clean - ing, refer to Installing Log Set and Screen , page 22, for placement instructions. • Replace log set if broken or chipped (dime- sized or larger)[...]

  • Page 30

    www .desatech.com 1 131 10-01H 30 TROUBLESHOO TING                  [...]

  • Page 31

    www .desatech.com 1 131 10-01H 31  1 . Control knob not fully pressed in 2. Control knob not pressed in long enough 3 . Safety interlock system has been triggered 4. Equipment shutoff valve not fully open 5. Pilot flame not touching thermocouple, which al - lows the rmoc oupl e to cool , causing pilot am[...]

  • Page 32

    www .desatech.com 1 131 10-01H 32  Slight smoke or odor during initial operation Fireplace produces a whistling noise when burner is lit White powder residue forming within burner box or on adja - cent walls or furniture Moi stu re/ cond ens ati on not ice d on windows REMEDY 1. Prob lem wil l stop af[...]

  • Page 33

    www .desatech.com 1 131 10-01H 33 REMEDY 1. Replace 9-volt batter ies in receiver and remote control 1. This is normal with most replaces. If noise is ex - cessive, contact qualied service person 1 . Open window to venti - late room. Stop using odor causing products while replace is running 2 . Refill supply tank (pro- pane/LP only) 3. Loc[...]

  • Page 34

    www .desatech.com 1 131 10-01H 34 SPECIFICA TIONS  • Rating: 14,000/26,000 Btu/Hr • Gas T ype: Propane/LP Gas Only • Ignition: Piezo • Manifold Pressure: 8" W .C. • Inlet Gas Pressure (in. of water): Maximum: 14" W .C., Minimum*: 1 1" W .C. • Di me nsi on s (H x W x D): Fir epl ac e (in cl ud ing h[...]

  • Page 35

    www .desatech.com 1 131 10-01H 35 ACCESSORIES Purc hase these access orie s from you r local de al er . If they can not sup ply the se acc es so ri es cal l DESA Heati ng, LLC at 1-8 66- 672- 604 0 for information. Y ou can also write to the address listed on the back page of this manual. [...]

  • Page 36

    www .desatech.com 1 131 10-01H 36 P ARTS   39 37 38 4 22 40 32 1 1 28 30 12 7 35 25 10 9 7 23 1 2 20 20 8 14 8 24 33 34 13 41 21 26 18 15 27 20 3 20 29 16 18 3 17 42 36 6 4 20 19 31 31 43 44 5[...]

  • Page 37

    www .desatech.com 1 131 10-01H 37 P ARTS This list contains replaceable parts used in your replace. When ordering parts, follow the instructions listed under Replacement Parts on page 34 of this manual.        1 102633-02 Outer Casing T op • • 1 2 10262[...]

  • Page 38

    www .desatech.com 1 131 10-01H 38 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ __________________________________________[...]

  • Page 39

    www .desatech.com 1 131 10-01H 39 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ __________________________________________[...]

  • Page 40

    1 131 10-01 Rev . H 09/08 NOT A UPC 113110 01 DESA Heating, LLC 2701 Industrial Drive Bowling Green, KY 42101 www .desatech.com 1-866-672-6040 WARRANTy kEEP THIS WARRANTy DESA HEA TING, LLC LIMITED WARRANTIES  Standard W arranty: DESA Heating, LLC warrants this new product and any parts thereof to be free from de[...]