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DIRECT VENT GAS INSERT

READ BEFORE INSTALLING. SAVE THESE INSTRUCTIONS

INSTALLATION AND 

OPERATING 

INSTRUCTIONS

MODELS: 

 490IDVNV, 490IDVPV, 

380IDVNV, AND 380IDVPV 

WARNINGS

IF THE INFORMATION IN THESE INSTRUCTIONS 

ARE  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 supplier, call the fire department.
–  Installation  and  service  must  be  performed  by  a  qualified  installer,  service  agency  or  the 

gas supplier. 

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, unless a certified kit is used. 

Summary of Contents for 490IDVNV

Page 1: ...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...

Page 2: ...rt Burner System Location 17 Checking Gas Pressure 19 Electrical Installation 20 Electrical Wiring 20 Remote Wall Switch 20 Log Placement 21 Surround and Trim Installation 24 Installing Facing 24 Inst...

Page 3: ...perly Get fresh air at once Have the insert inspected and serviced by a qualified service person Some people are more affected by carbon monoxide than others These include pregnant women people with h...

Page 4: ...and Maintenance page 32 11 Keep the area around your insert clear of combustible materials gasoline and other flammable vapor and liq uids Do not run insert where these are used or stored Do not plac...

Page 5: ...iency rating of this appliance is a product thermal efficiency rating determined under continuous operating condi tions and was determined independently of any installed system Thermal Efficiency up t...

Page 6: ...Supply Pressure 13 Minimum Supply Pressure 4 5 Minimum Supply Pressure 11 NOTE 490IDVNV 490IDVPV 380IDVNV and 380IDVPV inserts work without any electrical supply Blower must be attached to 110 120 VAC...

Page 7: ...80IDVNV PV 490IDVNV PV 380IDVNV PV A 243 4 629mm 223 4 578mm H 223 4 578mm 203 4 527mm B 3311 16 856mm 303 16 767mm I 2313 16 605mm 215 8 549mm C 311 8 791mm 275 8 702mm J 2415 16 633mm 223 4 578mm D...

Page 8: ...g the gas fireplace insert consider the functioning needs of the fireplace Confirm the size of the fireplace cavity the design of the chimney and the availablility of the gas supply and electricity fo...

Page 9: ...not protrude more than 3 4 from the facing If it does it is considered a mantel and must meet the mantel requirements shown above Hearth requirements The insert must be installed on a non combustible...

Page 10: ...aware of the large amount of heat this appliance produces when determining a location The gas line should be installed prior to insert placement Run the on off switch wires to the right behind the sur...

Page 11: ...face for zero capabilities DO NOT BLOCK THESE PASSAGES WARNING Do not remove or alter the insulation or any structured rigid frame members metal sides floor door frame face of the fireplace etc insta...

Page 12: ...vent kit instructions Only a qualified installer service person should install venting system The installer must follow these safety rules Wear gloves and safety glasses for protection Use extreme ca...

Page 13: ...M Maximum 1 305mm Offset at Base of Insert Make sure you have the following before installing 490 unit 4 and 3 UL 1777 Listed gas liner for air inlet and exhaust Vertical termination kit AI42TK43A Mak...

Page 14: ...or use at high altitude contact your dealer Failure to adjust air shutter properly may lead to improper combustion which can create a safety hazard Consult your dealer or installer if you suspect an i...

Page 15: ...imney space so that air is drawn down chimney for combustion air Block off Plate AI42AK43 or AI31AK331 non combustible materials Inlet Masonry Fireplace NOTE You may use either reline configuration wi...

Page 16: ...ent Figure 12 Temporarily attach flex vent to top of chimney Leave some extra slack in flex vent 6 Slide insert into place Guide the manifold over the insert until it is fully in place Figure 13 7 Rem...

Page 17: ...to gas supply Follow all local codes WARNING installation items needed Make sure you have the items listed below before installing appliance External regulator supplied by installer Piping check loca...

Page 18: ...as shown in Figure 15 Locate sediment trap drip leg where it is within reach for cleaning Install in piping system between fuel supply and burner system Locate sediment trap drip leg where trapped mat...

Page 19: ...n or a gas sniffer 4 To adjust flame height turn HI LO knob to HI to get maximum pressure to burner Turn HI LO knob to LO to get minimum pressure 5 To check gas pressures at valve turn captured screw...

Page 20: ...ing Diagram for Wall Switch Electrical installation Electrical Wiring Electrical connections should only be performed by a qualified licensed electrician Main power must be off when connecting to main...

Page 21: ...n irritation from ceramic fibers After handling the logs wash your hands gently with soap and water to remove any traces of fibers The positioning of the logs is critical to the safe and clean operati...

Page 22: ...in the bottom of the left base log 2 with two 2 pins on the left side of insert Install left base log See Figure 20 6 Line up holes in bottom of right base log 3 on two 2 pins to the right of rear lo...

Page 23: ...Installing Y Log 7 8 Set right corner log 5 on center pin to the left of right base log See Figure 23 9 Place one end of right top log 6 on cutout of right base log 3 Line up other end on right center...

Page 24: ...alling On Off switch 1 After installing surround disconnect the on off switch from wires leading from heater 2 Insert switch into hole in upper right side of the trim See Figure 28 3 Reattach wires Se...

Page 25: ...cabinet door frame on to front of unit Make sure the four 4 hooks of the cabinet door frame are inside four slots on front of unit See Figure 29 2 Slide top filigree panel on to four 4 shoulder screw...

Page 26: ...r and water solution before lighting the heater Any fingerprints left on the facing will be permanent when heater is lit notice door installation Installing Doors Slide one door onto hinges Repeat for...

Page 27: ...re or explosion D Do not use this appliance if any part of it has been under water Immediately call a qualified service tech nician to inspect the appliance and to replace any part of the control syst...

Page 28: ...ontrol has an interlock device that does not allow the lighting of the insert up to the moment the safety device of the flame has not interrupted the gas flow After that period of time when the magnet...

Page 29: ...gure 34 It will take less than four 4 seconds for the burner to ignite Pilot position Depress and turn knob to pilot position to keep burner off while maintaining the pilot light See Figure 35 Depress...

Page 30: ...opane installation at sea level The burner on Natural Gas Models may be adjusted for high altitude as fol lows To increase air mixture open the shutter more This will reduce soot formation See Figure...

Page 31: ...See Figure 40 2 Carefully remove broken glass 3 Slide new glass frame back down onto insert and fasten two latches See Figure 40 Always use gloves when handling broken glass caution Make sure the gla...

Page 32: ...o more than two or three times a season Use a mild glass cleaner to clean the door Do not use abrasive cleaners They will damage the glass surface Let glass cool before cleaning Do not clean glass whe...

Page 33: ...ts or other marks left on optional gold or nickel surface may become etched in place if they are not wiped clean prior to turning stove on Clean gold or nickel with a 50 50 vinegar and water solution...

Page 34: ...normal If excessive sooting is found heater must be adjusted Contact dealer where you bought heater 4 Clean burner and burner ports See Figure 44 5 Replace log set and rock wool per instructions on p...

Page 35: ...rify proper operation after servicing caution NOTE Unplug power cord before servicing The blowers are attached to insert bottom and back with Velcro To remove blower for servicing pull away from Velcr...

Page 36: ...36 57D0215 1 3 4 6 5 7 8 9 10 11 1 13 14 15 16 17 18 19 20 21 22 23 24 25 26 replacement parts...

Page 37: ...5 43D0095 43D0095 14 ON OFF Knob Extension s 1 43D0094 43D0094 43D0094 43D0094 15 Piezo Igniter 1 14D0503 14D0503 14D0503 14D0503 16 ON OFF Wire Harness 1 48D0163 48D0163 48D0163 48D0163 17 Hex bushin...

Page 38: ...od but there is no spark 2 Check for spark arcing from the elec trode to pilot Adjust and retighten 1 Check for proper connection of thermo couple to rear of valve 2 Bleed line Contact dealer 3 Check...

Page 39: ...ECORDED BY THE INSTALLER FOR WARRANTY PURPOSES AND FUTURE REFERENCE MHSC Model ______________________________ Name of Owner Name of Installer Address Address Phone Phone Name of Dealer Address Phone M...

Page 40: ...40 57D0215...

Page 41: ...57D0215 41...

Page 42: ...42 57D0215...

Page 43: ...y will also be void if the appliance is not operated and maintained according to the operating instructions supplied with the appliance and does not extend to 1 firebox burner assembly dam age by acci...

Page 44: ...August 2008 57D0215 Rev 6 MHSC 149 Cleveland Drive Paris Kentucky 40361 www mhsc com...

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