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Part No. XG0120

Page 8

MD44-DV  Direct Vent Vented Fireplace

Installation

Installation Of Vertical Vent DV

n

Vertical Terminations must be installed:

minimum 2' (two feet) above the highest point where
vent passes through the roof.

minimum 6' (six feet) from a mechanical air inlet

minimum 18" (1 1/2 feet) from a parapet wall.

n

Maximum vent height is 30 feet above fireplace.
Note: Flame characteristics will change if the maximum vent height
is used.

n

Minimum clearances 1" from vent to all combustible materials must
be maintained.

n

A maximum of two offsets

 (each offset has two 90° bends)

 may be

made and shall not exceed total length of 25% of the vertical vent height,
when measured center to center of piping.

Example:

Typical vent installation.
20' vertical vent
2 - 2' offsets required
25% of 20' = 5' max. offset allowed

This venting configuration meets requirements.

A - Termination

PVTK-1

B - Flex sections

PFL-1 (12" section)

PFL-2 (24" section)

PFL-3 (36" section)

PFL-4 (48" section)

C - Solid sections

PEXT-1 (12" section)

PEXT-2 (24" section)

PEXT-3 (36" section)

PEXT-4 (48" section)

PEXT-6 (72" Section)

D - Support Ring & Plate

PSPXT-8 (8" dia.)

E - Firestop

PS-8 (8" dia.)

F - Roof Flashing

PRF-7 (1/12 - 7/12 pitch)

PRF-12 (7/12 - 12/12 pt.)

PRF-16 (12/12 - 16/12 pt.)

2' min.

Storm collar

Support ring

Roof flashing

30' max.

* Minimum 1" clearance to all combustibles

Support plate

Firestop

Storm collar

Support ring

PEXT
Solid Section

Roof flashing

30' max.

* Minimum 1" clearance to all combustibles

Support plate

Firestop

Firestop

2' min.

PXT-10

Adaptor

PEXT

Flue

Collar

Figure 15.

 Vertical venting with 2 offsets (1 offset= two 

90° bends).

Figure 14.

 Vertical venting with 1 offset (1 offset= two 

90° bends).

2' min.

2'

Storm collar

Roof flashing

30' max.

* Minimum 1" clearance to all combustibles

Support straps or
support plate & ring

Firestop

Firestop

Firestop

Support plate
& ring

Figure  13.

Straight,  vertical  venting  using  the

  required  PXT-10

adaptor.

Top Vent

Summary of Contents for MD44-DV

Page 1: ...r gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Warning Improper installation adjustment alteration serviceormaintenancecancause injury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier For Your Safety Do not st...

Page 2: ...nstallations in Canada must conform to the current CAN CGA B 149 1 and 2 Gas Installation Code and local regulations When the unit employs the optional Blower Kit part no RFK1060 it must be electrically grounded in accordance with CSA C22 1 Canadian Electrical Code Part 1 and or Local Codes Installations in the USA must conform to the National Fuel Gas Code ANSI Z223 1 1988 When the unit employs t...

Page 3: ...t 49 5 8 See Vent Termination Section for framing of termination opening When installing a shelf over the top of the fireplace the following guidelines must be adhered to For Rear Vent models MD44DR the minimum clearance from the top of the fireplace to a shelf is 10 For Top Vent models MD44DT the normal minimum clearance is 44 However if the horizontal vent run is 12 or less then the top clearanc...

Page 4: ...w areas take extra care to prevent snow buildup from obstructing the vent termination Installing The Gas Line The gas line must be installed before finishing the D44DV Fireplace Natural Gas requires a minimum inlet gas supply pressure of 5 5 W C a manifold pressure of 3 5 W C Propane Gas requires a minimum inlet gas supply pressure of 11 W C a manifold pressure of 10 5 W C Provision must also be m...

Page 5: ... mounting brackets are facing the bottom of the termination See inset This will provide more heat protection at the top of the termination where temperatures are highest 2 Attach to the faceplate of the termination using four sheet metal screws Installing Heat Guards over Terminations MSR PTO 3F PTO 3 Installing Terminations with MOSR Frames 12 12 12 MOSR 1 Frame the termination opening to 12 x 12...

Page 6: ...nge of the vent termination is 7 ft this would NOT be an acceptable installation Figure 7 Venting Graph Center of Vent Pipe Hearth Horizontal Run feet Vertical Height feet Max Horizontal Run 0 5 10 15 20 0 5 10 15 20 Example For our shortest venting configuration use components A and F see Figure 8 Example A 10 section and elbow PIHR 10 used in conjunction with 3 ft flex section PFL 3 will when ex...

Page 7: ...ections with no vertical rise must not exceed maximum horizontal length of 3 feet see Figure 12 Flex runs over 3 feet must fall within the limits set by the venting graph and must have a minimum vertical rise of 3 per foot of flex Figure 8 Simple Top Vent installation If the 90 elbow is installed directly on the fireplace the height to the center of the termination is 49 5 8 PEXT Section PEL 90 El...

Page 8: ...Termination PVTK 1 B Flex sections PFL 1 12 section PFL 2 24 section PFL 3 36 section PFL 4 48 section C Solid sections PEXT 1 12 section PEXT 2 24 section PEXT 3 36 section PEXT 4 48 section PEXT 6 72 Section D Support Ring Plate PSPXT 8 8 dia E Firestop PS 8 8 dia F Roof Flashing PRF 7 1 12 7 12 pitch PRF 12 7 12 12 12 pt PRF 16 12 12 16 12 pt 2 min Storm collar Support ring Roof flashing 30 max...

Page 9: ...8 vent run Note For Rear Vent models maximum horizontal run with no vertical lift must never exceed 20 3 45 Corner Installation Use a 45 elbow and a termination and frame if appropriate PEL 45 PTKO Series Termination Fireplace Collar Figure 16 Straight installation Figure 17 Corner installation 4 Corner Installation 45 or less Use a PFL 1 or 2 flex section 12 or 24 compressed length and a terminat...

Page 10: ...s prompted us to manufacture many models of fireplaces which are hot fuel and energy efficient Please be aware temperatures over the mantel will rise above normal room temperature and walls above fireplace may be hot to touch We recommend careful consideration be given to the effects of elevated mantel temperatures which may be in excess of product design for example candles plastic or pictures Th...

Page 11: ...A Transformer 115VAC 24VAC Grnd Screw Figure 15 Wiring for the MD44 DV I with Honeywell gas control and pilot Optional Blowers The MD44 DV fireplaces features an optional blower kit for increasing heat circulation into the living space Part No RFK1060 Installations in Canada which employ the optional Blower Kit must be electrically grounded in accordance with CSA C22 1 Canadian Electrical Code Par...

Page 12: ...m of door surround outwards and upwards Figure 25b Installing Glass Door Glass door frame Screws Removing and Installing the Insert You may remove the insert to protect it from theft and damage during construction 1 Remove the two machine screws 1 left 1 right at the top of the insert that attach the insert to the shell See Inset 1 2 Remove the fresh air flex from the collars on the shell See Figu...

Page 13: ...rn Off Gas To Appliance Operation Model MD44 DV 3 Push in gas control knob slightly and turn clockwise to Off Do not force 4 Flip up horizontal trim 1 Turn off remote switch 2 Fip down lower horizontal trim 1 STOP Read the safety information above on this label 2 Flip down lower horizontal trims 3 Push in gas control knob and turn clockwise to OFF 4 Wait five 5 minutes to clear out any gas Smell f...

Page 14: ...use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water Lighting Instructions 1 STOP Read the safety information above on this label 2 Remove lower brass trims 3 Turn switch on the gas control to OFF 4 Wait 5 minutes to clear out any gas ...

Page 15: ...ter Cleaning When the fireplace is first activated there may be some smoking and a visible film may be left on the glass This is a normal condition and is the result of burning of protective coatings on new metal n Glass must be cleaned periodically to remove any film which is a normal biproduct of combustion which may be visible Film can easily be removed by removing the door as shown on page 12 ...

Page 16: ...0 Check Transformer Line Volt Supply Replace SV9500 SV9600 Save old Igniter Flame Rod Assembly for service INSET HSI Terminals CHECK Line voltage power Low voltage transformer Limit Controller Thermostat Wiring Air proving switch on combustion air blower system Vent damper if used is open and end switch made Gas Control Valve Pilot Burner Adjustment 1 Remove Pilot Adjustment Cap See figure 22 2 Ad...

Page 17: ... such as wood coal or any other solid fuel will cause damage to the Gas Appliance will produce excessive temperatures and will result in a fire hazard Limitations On Liability Limitations On Liability Limitations On Liability Limitations On Liability Limitations On Liability It is expressly agreed and understood that The Companies sole obligation and purchaser s exclusive remedy under this Warrant...

Page 18: ...rner Assembly MD44 DV MD44 DV I 27 28 20 Add on Bay Window 21 Remote Control 22 4 PiecePictureFrameSurround PFS 23 3 Piece Picture Frame Surround PFO 24 Door Frame Arched DFA 25 Door Frame Square DFO 26 Horizontal Trim Kits 27 MTO 3 3F Termination 10 Jam Nut 1 4 11 Orifice rear burner 12 Jam Nut 5 16 13 Rear Burner 14 Front Burner 17 Rear Burner Tubing 5 16 18 Front Burner Tubing 1 4 19 Optional B...

Page 19: ... minimum J not to be installed above a meter regulator assembly within 40 103 cm horizontally from the centreline of the regulator K clearance to service regulator vent outlet 3 feet minimum in the United States 6 feet 1 8 m minimum in Canada L clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 16 inches 41 cm minimum for appliances 100 000 B...

Page 20: ...Part No XG0120 Page 20 MD44 DV Direct Vent Vented Fireplace Canadian Heating Products Inc Langley BC V4W 4A1 Montigo Del Ray Corp Ferndale WA 98248 XG0120 Rev 02 07 02 ...

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