Desa VFRMV18NB, VFRMV24NB, VFRMV24PB Piping System Test Pressures In Excess Of 1/2 Psig KPa

Page 15

Installation

Continued

Piping System

Test Pressures In Excess Of 1/2 PSIG

(3.5 kPa)

1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator.

Propane/LP Supply Tank

Equipment

Shutoff Valve

Control Valve

Location

2. Cap off open end of gas pipe where equipment shutoff valve was connected.

3. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

4. Check all joints of gas supply piping system. Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

Test Pressures Equal To or Less Than

1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Figure 15).

2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

3. Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP sup- ply to equipment shutoff valve for propane/LP (see Figure 16 or 17). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4. Correct all leaks at once.

Equipment Open

Shutoff

Valve

Closed

Figure 15 - Equipment Shutoff Valve

Figure 16 - Checking Gas Joints

(Propane/LP Gas Only)

Equipment

Shutoff Valve

Gas Meter

Control Valve

Location

Figure 17 - Checking Gas Joints

(Natural Gas Only)

Pressure Testing Heater Gas

Connections

1. Open equipment shutoff valve (see Figure 15).

2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3. Make sure control knob of heater is in the OFF position.

4. Check all joints from equipment shutoff valve to gas control (see Figures 16 and 17). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater, page 16). Check all other internal joints for leaks.

7. Turn off heater.

116412-01B

www.desatech.com

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Contents Ansi Z21.11.2b-2004 Ansi Z21.60-2003 Models VFRMV18NB, VFRMV18PB VFRMV24NB and VFRMV24PBTable of Contents Safety Information Safety Information Local Codes Optional Remote Control AccessoriesProduct Features Product IdentificationFor Appliance Location Air For Combustion VentilationProviding Adequate Ventilation Determining FRESH-AIR FlowAIR for Combustion Ventilation Ventilation AIRVentilation Air From Inside Building Ventilation Air From Outdoors InstallationInstallation and Clearances for vent-free operation Check GAS TypeCeiling Minimum Noncombustible Material Clearances Safe InstallationFloor Clearances Mantel ClearancesMasonry Manufactured FireplaceFireplace Installing Damper Clamp Accessory for Vented OperationInstalling Remote Control Accessory bracket Installing Heater AssemblyInstallation Items Needed Connecting to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Propane/LP FromPressure Testing Heater Gas Connections Piping System Test Pressures In Excess Of 1/2 Psig KPaTest Pressures Equal To or Less Than Psig 3.5 kPa For Your Safety Read Before Lighting Operating HeaterLighting Instructions Shutting Off Heater Operating HeaterTo Turn OFF GAS To Appliance Propane/LPNaturalOn/Off Series Model HRC100 Manual Lighting ProcedureOptional Hand-Held Remote OperationInspecting Burners Safety FeaturesAuto Shutoff Feature Key Pad Lock FeatureCleaning Maintenance Burner Flame PatternBurner Injector Holder Pilot Air Inlet Hole Propane/LP Cleaning MaintenanceWiring Diagram Technical ServiceObserved Problem Possible Cause Remedy TroubleshootingMaintenance, TroubleshootingOperation Processes and logs curing Hours of operation Checking Gas Connections Gas leak. See warningAccessories SpecificationsReplacement Parts Service HintsAccessories Models VFRMV18NB, VFRMV18PB, VFRMV24NB Shown and VFRMV24PB Illustrated Parts BreakdownParts List 116412-01B 116412-01B Warranty Information Keep this WarrantyLimited Warranty VENT-FREE GAS LOG Heaters

VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB specifications

The Desa VFRMV series is a sophisticated line of heating solutions known for its efficiency and modern design. The models in this series include the VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB, each sharing a commitment to provide superior comfort and versatility in various living spaces.

One of the most notable features of the VFRMV series is its advanced heating technology. These units are equipped with a powerful burner system designed to maximize heat output while minimizing energy consumption. This makes the units not only environmentally friendly but also cost-effective, as users can enjoy warm indoor spaces without incurring high energy bills. The gas burners achieve a high thermal efficiency, ensuring that a significant amount of heat is delivered into the room promptly.

The VFRMV series is designed with customer convenience in mind. The models feature easy-to-read digital displays that allow users to adjust temperatures and settings effortlessly. These displays are intuitive, providing feedback on heating levels, operational status, and timer functions, enhancing the user experience. Furthermore, the inclusion of a remote control option allows homeowners to manage the heating from the comfort of their sitting area.

In terms of safety, the VFRMV series implements several key features. Each unit is equipped with an oxygen depletion sensor and a safety shut-off system. This ensures that the unit operates safely within its designated space, automatically shutting down if carbon monoxide levels rise or oxygen levels drop beyond safe limits. This commitment to safety provides peace of mind for households, making it a suitable choice for a wide range of environments.

Aesthetically, the VFRMV24NB and VFRMV24PB models feature a sleek design, with the "NB" models showcasing a bold black finish, while the "PB" variants offer a more classic propane-blue coloration. The smaller VFRMV18 series similarly combines elegance with functionality, ensuring that they can seamlessly blend into any home décor.

In summary, the Desa VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB models exemplify modern heating solutions. With their advanced burner technology, user-friendly features, stringent safety measures, and stylish designs, they cater to contemporary requirements for effective indoor heating. Whether for residential or commercial use, the VFRMV series promises reliability and comfort all year round.
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