Desa VVMR24, VVMR18 Propane/LP Gas Conversion, Gas Control Valve with Ther- mocouple and Pilot

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VENTED NATURAL GAS LOGS

INSTALLATION

Continued

2.Attach the pilot gas line to the pilot out- let of the gas control valve and tighten. Connect the thermocouple to the rear of the gas control valve. See Figure 11. Do not overtighten. If using propane/LP gas, see Changing Pilot Orifice, page 11.

3.Install the inlet fitting into the inlet opening of the gas control valve (see Figure 12). Use thread sealant on the male pipe threads.

4.Place the burner pan assembly in the center of the fireplace floor. Make sure front of pan faces the room from which you wish to control the appliance.

5.Thread the gas supply fitting to the fire- place gas supply pipe. Adjust to most convenient position.

6.Install the gas connector tube to the gas supply fitting. Carefully shape tube to attach to adapter fitting. Be careful not to cause kinks in tube.

7.Test for leaks following instructions under Testing Burner for Leaks, page 11.

8.Retighten and adjust the location of the gas control as necessary. The gas con- trol should be level, with the control rod to the front.

9.Install cover, provided with log set, to burner pan using screws provided.

10.Install thermocouple, pilot, and ignitor onto valve cover as shown in Figure 13. Use the provided screws.

Thermocouple

and Line

Pilot and Line

Gas Control

Valve

Figure 11 - Gas Control Valve with Ther- mocouple and Pilot

11.Push the control rod extension onto the “D” shaped control rod through the cen- ter hole in the cover.

12.Install the position decal and control knob making sure to align the marks with the correct stop positions of the gas control. Pilot position will allow the knob to push in about 1/2". Align the decals in the pilot position.

Gas

Connector

Tube

Gas Control

Inlet

Gas Inlet

Opening

Valve

Fitting

 

Figure 12 - Installing Inlet Fitting and Gas Connector Tube

Thermocouple

Screw

Pilot

Ignitor

Valve Cover

Piezo Ignitor

Control

Control Rod

Knob

Extension

Figure 13 - Installing Cover, Control Knob, and Piezo Ignitor

Propane/LP Gas Conversion

To convert to propane/LP gas, the burner inlet fitting and pilot orifice must be re- placed. The propane/LP burner inlet fitting is supplied with the orifice installed for a 24" log set. If you have an 18" set, you must change this orifice also. See Figure 1, page 3 for product identification.

Burner Inlet Fitting

1.Remove the burner inlet fitting from the burner pan assembly (see Figure 14). DO NOT remove the orifice from this fitting. The propane/LP burner inlet fit- ting is included in the hardware kit (see Figure 15).

2.Be sure to use the correct orifice for your appliance. The hardware kit included with this appliance contains two orifices with a cone-like shape. If you have an 18" set, the orifice for the burner inlet fitting is red. If you have a 24" log set, the orifice is already installed inside the fitting. The black orifice will not be used in any multi-side unit and may be discarded.

Burner Inlet Fitting for Natural Gas

Figure 14 - Remove Burner Inlet Fitting

Injector for

Injector for

Natural Gas

Propane/LP

 

Gas

NATURAL

PROPANE/

GAS

LP GAS

FITTING

FITTING

 

Figure 15 - Burner Inlet Fittings with Injectors

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualFor Use with Log Sets Safety Information Vented Natural GAS LogsRemote Control Ready Millivolt Safety VALVE/ Pilot KIT Local Codes Unpacking Optional Product FeaturesON/OFF Safety VALVE/ Pilot KIT and PROPANE/LP Conversion Remote Control AccessoriesUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Appliance Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Building Ventilation AIRVentilation Air From Inside Ventilation Air From OutdoorsVenting Specifications for Installation InstallationFlue Opening Specifications Check GAS TypePressure Testing Gas Supply Piping System Installing Damper ClampConnecting to GAS Supply Installation Items NeededKit Assembly Hearth KIT Assembly and InstallationOptional GA9000 ON/OFF Safety VALVE/PILOT KIT Assembly Installation and Gas ConnectionPropane/LP Gas Conversion Gas Control Valve with Ther- mocouple and PilotInstalling the Grate and Logs Testing Burner for LeaksAdding PAN Material Operating Appliance To Turn OFF GAS To Appliance Cleaning and MaintenanceTroubleshooting Shutting Off Burner Only pilot stays litClean pilot see Cleaning and Mainte Gas leak. See Warning statement at Illustrated Parts Breakdown VVMR18 VVMR24Parts List KEY Part Number for VVMR18 VVMR24 Description QTYLOG SET Models VMLR18, and VMLR24 KEY Part Number for VMLR18 VMLR24 Description QTYReplacement Parts AccessoriesWarranty Information International

VVMR18, VVMR24 specifications

Desa VVMR18 and VVMR24 are advanced solutions designed to enhance the efficiency of commercial and industrial heating systems. These models represent a significant leap in technology within the realm of industrial heaters, emphasizing energy efficiency, reliability, and user-friendly operation.

One of the main features of both the VVMR18 and VVMR24 models is their highly efficient heat exchange technology. The design incorporates a compact heat exchanger that maximizes thermal efficiency while minimizing energy waste. This means that users can not only save on operational costs but also reduce their carbon footprint, aligning with global sustainability goals.

The VVMR series utilizes advanced control systems that allow for precise temperature regulation and monitoring. These control systems are equipped with intelligent algorithms that adapt to varying load demands and external conditions, ensuring optimal performance at all times. This feature is particularly beneficial in environments where temperature fluctuations are common, providing stable heating without the need for constant manual adjustment.

In terms of construction, both models boast robust builds, designed to withstand the rigors of industrial use. The use of high-quality materials enhances durability and longevity, reducing maintenance requirements and extending the lifespan of the units. Additionally, their modular design facilitates easy installation and servicing, which is critical in industrial settings where downtime can be costly.

Safety is another critical characteristic of the VVMR18 and VVMR24 models. They come equipped with multiple safety features, including over-temperature protection and pressure relief systems, ensuring reliable operation without compromising on safety. These features are essential in industrial environments where safety regulations are paramount.

In conclusion, the Desa VVMR18 and VVMR24 offer a blend of efficiency, advanced technology, and robust design. Their intelligent control systems, efficient heat exchange technology, and focus on safety make them ideal choices for businesses seeking reliable heating solutions. Investing in these models not only supports operational efficiency but also promotes a commitment to environmental responsibility, making them a wise choice for modern industrial applications.