Lennox Hearth MPD-35 Series Millivolt Honeywell Systems, Kits, Millivolt SIT Systems

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Millivolt Honeywell Systems -

Natural To Propane Gas Conversion

Kits

Models

Unit Type

Catalog No.

 

 

 

MPDT-3328

Millivolt

26M51

MPDR-3328

 

 

MPD-3530

Millivolt

26M52

 

 

 

MPD-4035

Millivolt

26M53

 

 

 

MPD-4540

Millivolt

26M54

 

 

 

MPDT-3328

Electronic

26M59

MPDR-3328

 

 

MPD-3530

Electronic

26M60

 

 

 

MPD-4035

Electronic

26M61

 

 

 

MPD-4540

Electronic

26M62

 

 

 

Millivolt SIT Systems -

Natural To Propane Gas Conversion

Kits

Models

Unit Type

Catalog No.

 

 

 

MPDT-3328

millivolt

H2009

MPDR-3328

 

 

MPD-3530

millivolt

H2011

 

 

 

MPD-4035

millivolt

H2013

 

 

 

MPD-4540

millivolt

H2015

 

 

 

Step 4. Millivolt Appliances - SIT Systems

a. See Figure 59 and the instructions provided with the kit. Using a Torx T20, remove and discard the three pressure regulator mounting screws. Remove the pressure regulator, spring, poppet, diaphragm and bushing. Discard all removed components. Ensure the rubber gas- ket installed on the back of the replacement pressure regulator is properly positioned and install the new pressure regulator using the new screws supplied with the kit. Tighten screws to 25 In. lb. torque.

Millivolt Honeywell Systems -

Propane To Natural Gas Conversion

Kits

Models

Unit Type

Catalog No.

 

 

 

MPDT-3328

Millivolt

26M55

MPDR-3328

 

 

MPD-3530

Millivolt

26M56

 

 

 

MPD-4035

Millivolt

26M57

 

 

 

MPD-4540

Millivolt

26M58

 

 

 

MPDT-3328

Electronic

26M63

MPDR-3328

 

 

MPD-3530

Electronic

26M64

 

 

 

MPD-4035

Electronic

26M65

 

 

 

MPD-4540

Electronic

26M66

 

 

 

Millivolt SIT Systems -

Propane To Natural Gas Conversion

Kits

Models

Unit Type

Catalog No.

 

 

 

MPDT-3328

millivolt

H2010

MPDR-3328

 

 

MPD-3530

millivolt

H2012

 

 

 

MPD-4035

millivolt

H2014

 

 

 

MPD-4540

millivolt

H2016

 

 

 

SIT Millivolt Gas Valve

Pressure

Regulator

Remove

These

Components

Figure 59

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Pilot for SIT Millivolt Gas Valve

Pilot

Orifice

Figure 60

b. Attach manometer to the manifold side pressure test fitting and verify manifold pres- sure reads 3.5 inches water column (0.87 kPa) for natural gas, and 10.0 inches water column (2.49 kPa) for propane gas.

c. Refer to Figure 60 and remove the pilot hood assembly to access the hexed pilot ori- fice. Remove and replace the orifice with the one provided with the kit.

Step 5. Millivolt Appliances -

Honeywell Systems

a. Convert the gas valve as follows (see Figure 61 ):

Remove the plastic protecting cap. Remove the gas type setting screw by turning it coun- terclockwise. Obtain the replacement gas type setting screw from the kit and screw it into place (red for propane and blue for natural gas). Tighten the gas type setting screw by turning it clockwise. Replace the plastic pro- tecting cap.

Honeywell Millivolt Gas Valve

Adjusting Knob

Regulator Cap

Conversion screw

(blue natural gas;

red LP/propane gas)

Figure 61

Image 30
Contents OTL Report No -F-13-4 MPD-3530CPE MPD4540CNE-BTable of Contents Input of millivolt models is shown in the following table Electronic ModelsAll Models Appliance and Vent Clearances Typical LocationsLocation Other heating/air conditioning ductingVertical Vent Termination Clearances Typical Installation SequenceVent Termination Clearances Roof Pitch FeetDetailed Installation Steps FramingRouting GAS Line = Clearance to service regulator vent outlet Feet 91cm Canadian Installation US InstallationMeter/regulator assembly Inches 30cm33 1/4 37 3/4 12 7/8 845 959 327 45 1/4 40 1/4 26 11/16 44 3/4Framing with Square Horizontal Termination SV4.5HT-2 Massachusetts Top ViewFront View Right Side View 33 1/8 30 1/8 27 1/2 19 5/8 21 1/2 10 3/4 13/16 11/32New York City, NY Installation of Vent RestrictorVent Restrictor Installation Rear Vent Select Venting System Horizontal or VerticalSV4.5FA or Vertical Straight InstallationVent Section Length Chart SV4.5SCVertical Offset Installation Vent / Appliance Collar Connection10-1/2 267 mm 305 mm Framing Dimensions for Roof Pitch12/12 10-1/2 17-3/4 267 mm 451 mmTable B Vertical Vent FIGURES/TABLESTable a FeetSV4.5HF Table DCeiling Firestop/Spacer Wall SV4.5VF CeilingFrame exterior wall opening Install firestop/spacer at ceilingPlan the vent run Support the vertical run sections See Section E onInside the inner until the termination seats Install the desired terminationFor the last step , from outside the exterior SV4.5RCHTable F Exterior Wall ThicknessInches mm Table GHorizontal Vent FIGURES/TABLES Table HH1H Table K Table LCeiling Pull and extend the inner flexible vent pipe Install the Outer Flex PipeInstall Firestop/Spacers at ceilings and walls Pull and extend the outer flexible vent pipeSIT and Honeywell Millivolt Wiring Field WiringWiring Optional Forced AIR Blower KIT Electronic Wiring See orConnecting GAS Line Propane applicationsUse an open flame to check for leaks Electronic Appliance Checkout Installing the Glass DoorSIT Gas Valve Honeywell Piezo Ignitor Checking Appliance OperationFinishing Requirements Burner Adjustments Flame Appearance and sootingHood Installation Wall DetailsInches mm Cold Climate InsulationMantel Clearances TOPCat.No Model No Description Installation AccessoriesCat.No. Model No. Description Support PlateCat Model Description Model DescriptionGAS Conversion Kits CanadaMillivolt Honeywell Systems KitsMillivolt SIT Systems Arrows shown in Figure Pilot for Honeywell Millivolt Gas ValveShown on the tab Orifice Strip Tab PositioningPilot Assembly Ignitor AssemblyFlare Nut Clip

MPD-35 Series, MPD-45 Series, MPD-33 Series, MPD-40 Series specifications

The Lennox Hearth MPD-33, MPD-40, MPD-45, and MPD-35 Series are sophisticated and innovative products designed for both aesthetic appeal and functional heating efficiency. These multi-sided gas fireplaces are engineered to bring warmth and style to any space, making them a popular choice for homeowners looking to enhance their living environment.

One of the standout features of the MPD Series is their versatile design. Each model is available in different sizes with stylish options, catering to various room dimensions and decor styles. The MPD-33, MPD-40, and MPD-45 models provide flexibility in installation, while the MPD-35 offers extra depth for a more pronounced fire presence, making them suitable for both contemporary and traditional interiors.

A key characteristic of the Lennox Hearth MPD Series is its high-efficiency operation. These fireplaces are designed to maximize heat output while minimizing fuel consumption, resulting in lower energy bills. The innovative burner system produces a realistic flame effect that can be adjusted to create the perfect ambiance for any occasion. The use of advanced technology ensures that the heat generated is evenly distributed, enhancing overall comfort.

Safety is paramount in the design of the MPD Series. Each model is equipped with a state-of-the-art safety shut-off system that activates if the flame goes out, ensuring peace of mind for users. Additionally, the glass front not only provides a clear view of the flames but is designed to stay cool to the touch, making it safe for families with children and pets.

The efficiency of these models is further complemented by an optional remote control feature, allowing users to adjust the flame height and thermostat settings with ease. The MPD Series is also compatible with smart home systems, providing users with added convenience.

Overall, the Lennox Hearth MPD-33, MPD-40, MPD-45, and MPD-35 Series exemplify the perfect combination of efficiency, safety, and design. Their ability to blend function with visual appeal makes them an ideal choice for creating a cozy atmosphere in any room, from living areas to bedrooms. These fireplaces stand as a testament to Lennox's commitment to quality and innovation in home heating solutions. With advanced technologies and a focus on user comfort, the MPD Series is designed to meet the needs of modern homeowners seeking reliable and stylish heating options.