Desa VFRMV18PA, VFRMV18NA, VFRMV24NA, VFRMV24PA installation manual Connecting to GAS Supply

Page 13

INSTALLATION

Continued

Note: Install optional GHRCTB Receiver and Hand-Held Remote Control Kit (see Accessories, page 26) before installing gas log heater. See in- stallation instructions included with the kit.

1.Apply pipe joint sealant lightly to male threads of gas fitting (not provided). Connect approved flexible gas hose to inlet side of gas control (see Figure 11).

2.Position heater assembly in fireplace.

3.Connect to gas supply. See Connecting To Gas Supply.

Gas Control Valve

Flexible Gas Hose (if allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose

to Heater Gas Regulator

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING:Aqualifiedservice personmustconnectheatertogas supply. Follow all local codes.

CAUTION: Never connect propane/LP fireplace directly to the propane/LP supply. This heater requires an external regu- lator (not supplied). Install the external regulator between the heater and propane/LP supply.

WARNING: Never connect natural gas fireplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

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

•external regulator (supplied by installer)

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•equipment shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

•approved flexible gas line with gas connector (if allowed by local codes) (provided)

*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 26.

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, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure 12. Pointing the vent down protects it from freezing rain or sleet.

CAUTION: Use only new,

black iron or steel pipe. Inter-

nally-tinned copper tubing may

be used in certain areas. Check

your local codes. Use pipe of

1/2" diameter or greater to allow

proper gas volume to heater. If

pipe is too small, undue loss of

volume will occur.

Propane/LP

External

Regulator

Supply Tank

 

Vent

 

Pointing

 

Down

 

Figure 12 - External Regulator With Vent Pointing Down

114745-01B

www.desatech.com

13

Page 12 Page 14
Image 13
Page 12 Page 14
Contents Ansi Z21.11.2a-2003 Ansi Z21.60-2003 VFRMV18NA, VFRMV18PA VFRMV24NA, VFRMV24PATable of Contents Safety Information Provide adequate clearances around air openings Local Codes Product IdentificationUnpacking Providing Adequate Ventilation AIR for Combustion VentilationDetermining FRESH-AIR Flow for Appliance Location Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors AIR for Combustion Ventilation InstallationCheck GAS Type Installation and Clearances for VENT-FREE OperationMinimum Noncombustible Material Clearances InstallationFloor Clearances Mantel ClearancesInstalling Heater Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Masonry Manufactured FireplaceFireplacePropane/LP External Regulator Supply Tank Vent Pointing Down Connecting to GAS SupplyTo Gas Control Valve Checking GAS ConnectionsPropane/LP From Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 Psig 3.5 kPaOperating Heater For Your Safety Read Before LightingLighting Instructions Propane/LP Natural To Turn OFF GAS To ApplianceShutting Off Heater Optional HAND-HELD Remote Operation Manual Lighting ProcedureON/OFF Series Model Ghrcb Thermostat Series Model GhrctbInspecting Burners Auto Shutoff FeaturePilot Flame Pattern Check pilot flame pattern and burner flame pat- terns oftenBurner Flame Pattern Cleaning MaintenanceBurner Injector Holder and Pilot AIR Inlet Hole Propane/LP Wiring DiagramObserved Problem Possible Cause Remedy TroubleshootingSafety interlock system has Out when control knob is reClean ODS/pilot see Low gas pressure AssemblyGas regulator defective Replace gas regulator Cleaners or similar productsOperation Processes and logs curing Hours of operation Turning control knob to HIGas leak. See Warning Replacement Parts SpecificationsTechnical Service AccessoriesReceiver and HAND-HELD Remote Control KIT Ghrcb Receiver and HAND-HELD Thermostat Remote Control KIT GhrctbWALL-MOUNT Thermostat Switch GWMT1 FB36CA, FB42C Series CIRCULATING, FB36NCA, FB42NCVFRMV18NA, VFRMV18PA Illustrated Parts BreakdownParts List 114745-01B 114745-01B Keep this Warranty Warranty InformationLimited Warranty VENT-FREE GAS LOG Heaters

VFRMV24PA, VFRMV18PA, VFRMV18NA, VFRMV24NA, VFRMV24PA specifications

Desa's VFRMV series is a line of advanced heating solutions designed for energy efficiency and optimal comfort. The series includes models VFRMV24PA, VFRMV18PA, VFRMV18NA, VFRMV24NA, and VFRMV24PA. Each model is tailored to meet different heating demands, making them suitable for various residential and commercial applications.

One of the defining features of the VFRMV series is its inverter technology, which adjusts the compressor speed to match the heating or cooling needs of the environment. This capability not only enhances energy efficiency but also contributes to a quieter operation. Users can expect significant energy savings, as the inverter technology minimizes energy consumption during periods of low demand.

Each model in the VFRMV series boasts high-performance SEER and HSPF ratings, indicating superior energy efficiency and performance. With such ratings, these units are designed to make substantial contributions to reducing heating and cooling costs while complying with modern environmental standards.

The VFRMV24PA and VFRMV24NA models are particularly effective in larger spaces, offering robust heating capacities while remaining energy efficient. On the other hand, the VFRMV18PA and VFRMV18NA models cater to medium-sized spaces, ensuring that homes or offices maintain a comfortable atmosphere without overspending on energy bills.

Additional characteristics include advanced filtration systems that improve indoor air quality by removing dust, allergens, and pollutants. This feature is particularly beneficial for allergy sufferers or anyone keen on maintaining a healthier living environment.

Moreover, the VFRMV series incorporates smart home compatibility, allowing users to control their heating and cooling systems remotely via smartphone apps. This feature not only adds convenience but also enables better energy management, as users can adjust settings based on their schedules or occupancy patterns.

In summary, Desa's VFRMV series, comprising models VFRMV24PA, VFRMV18PA, VFRMV18NA, VFRMV24NA, and VFRMV24PA, offers a blend of efficiency, performance, and advanced technology. The use of inverter technology, high SEER and HSPF ratings, robust heating capabilities, advanced filtration, and smart home features make these units ideal choices for anyone looking to enhance comfort while minimizing energy expenses.
Top Page Image Contents