Desa MPF24VPA, MPF18VPA Installing Appliance, Connecting to GAS Supply, Installation Items Needed

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INSTALLATION

Continued

INSTALLING APPLIANCE

WARNING: Special care is required if you are installing the unit into a sunken fireplace. You must raise the fireplace floor to allow access to gas log controls. This will insure adequate air flow and guard against sooting. Raise the fireplace floor using noncombustible material.

CAUTION: Do not pick up ap- pliance assembly by logs. This could damage unit. Only handle assembly by grate.

IMPORTANT: Make sure appliance is level. If unit is not level it will not work properly.

Center the appliance in the fireplace. Make certain the grate front feet sit inside the front edge of the fireplace and that there is adequate clearance around the appliance for access and operation.

Note: The installation of appliances designed for manufactured home (U.S. only) or mobile home installation must conform with the standard CAN/ CSA Z240, Mobile Housing, in Canada, or with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, in the United States, or when such a standard is not applicable, ANSI/NCSBCSA225.1/NFPA501A, Manufactured Home Installations Standard.

CONNECTING TO GAS SUPPLY

WARNING:Aqualifiedservice personmustconnectheatertogas supply. Follow all local codes.

WARNING: This appliance requiresa3/8"NPT(NationalPipe Thread) inlet connection to the control valve.

CAUTION: Never connect propane/LP unit directly to the propane/LP supply. This unit requires an external regulator (not supplied). Install the external regulatorbetweentheunitandthe propane/LP supply.

WARNING:Neverconnectnatu- ralgasfireplacetoprivate(non-util- ity)gaswells.Thisgasiscommonly known as wellhead gas.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

approved flexible gas hose and fittings (supplied with appliance -if allowed by local codes)

external regulator (propane/LP models only)

piping (check local codes)

sealant (resistant to propane/LP gas)

equipment shutoff valve*

test gauge connection*

sediment trap

tee joint

pipe wrench

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 17.

For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pres- sure, control valve damage could occur. Install external regulator with the vent pointing down as shown in Figure 6. Pointing the vent down protects it from freezing rain or sleet.

Propane/LP

External

Supply Tank

Regulator

Vent

 

Pointing

 

Down

 

Figure 6 - External Regulator with Vent

 

Pointing Down

114925-01C

www.desatech.com

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Contents MPF24VNA, MPF24VPA MPF18VNA and MPF18VPA What to do if YOU Smell GASTable of Contents Safety Information High traffic areas Windy or drafty areas Local CodesProvide adequate clearances around air openings Product Identification Product FeaturesInstallation Remove log set assembly from cartonInstallation Installation and ClearancesFlue Opening Specifications Venting Specifications forConnecting to GAS Supply Installing ApplianceInstallation Items Needed Test Pressures In Excess Of 1/2 Psig 3.5 kPa Checking GAS ConnectionsNatural From Gas Meter 5 W.C.** to 10.5 W.C. Pressure Pressure Testing Appliance Gas Connections Placement of Loose EmbersTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Operating Appliance Check pilot flame pattern and burner flame pat- terns often Inspecting BurnersPilot Flame Pattern ON/OFF Series Model HRC100Replacement Parts Service HintsCleaning Maintenance Technical ServiceObserved Problem Possible Cause Remedy TroubleshootingReplace burner orifice Contact local natural orPilot is lit Burner orifices clogged Propane/LP gas company Replace burner orificesControl valve defective Check manifold pressure Burners are lit Position when burners areCleaners or similar products Gas regulator defectiveStatement at top Gas leak. See WarningGas leak. See Warning statement at top Accessories SpecificationsWiring Diagram MPF24VNA, MPF24VPA MPF18VNA, MPF18VPA Illustrated Parts BreakdownParts List Keep this Warranty Warranty InformationLimited Warranty Vented GAS LOG Appliances

MPF18VNA, MPF24VPA, MPF18VPA specifications

The Desa MPF24VPA, MPF18VPA, and MPF18VNA are innovative models designed for efficient heating solutions tailored to a variety of residential and commercial applications. These products showcase advanced technology and engineering that cater to diverse consumer needs, making them notable players in the heating equipment market.

One of the defining features of the Desa MPF series is their high heating capacity. The MPF24VPA, for instance, can deliver a robust output suitable for larger spaces, while the MPF18VPA and MPF18VNA offer slightly lower capacities, making them ideal for smaller areas. This range allows consumers to choose models according to the specific requirements of their environments.

Energy efficiency is another hallmark of the Desa MPF series. These models incorporate state-of-the-art combustion technology, ensuring maximum fuel utilization and reduced emissions. With features such as automatic ignition and efficient heat exchangers, users can expect quick heat responses and consistent comfort without wasting energy, contributing to lower utility bills.

Durability and user-friendly operation are also significant characteristics of the MPF24VPA, MPF18VPA, and MPF18VNA. Constructed with high-quality materials and components, these heaters are built to withstand the rigors of regular use. Moreover, the intuitive controls make operation straightforward, allowing users to easily adjust settings to suit their needs.

Safety is always a top priority in any heating appliance, and Desa takes this aspect seriously. The MPF series includes several safety features, such as automatic shut-off in case of overheating, low oxygen sensors, and robust construction that prevents overheating and accidental damage. These precautions ensure that consumers can enjoy their heating solutions confidently.

Additionally, the MPF series features versatile installation options. The models can be configured for vented or vent-free operation, providing flexibility based on local regulations or personal preferences. Their sleek designs are also aesthetically pleasing, allowing them to blend seamlessly into various home or office environments.

In conclusion, the Desa MPF24VPA, MPF18VPA, and MPF18VNA are exemplary heating units that combine efficiency, effectiveness, and safety. With diverse features and options designed to cater to a wide audience, these models stand out as reliable choices for anyone looking for high-quality heating solutions. Whether for a cozy home or a bustling commercial space, the Desa MPF series is engineered to deliver warmth and comfort through innovative design and technology.