Desa VFRMV18PB, VFRMV18NB Checking GAS Connections, Pressure Testing Gas Supply Propane/LP From

Page 14

Installation

Continued

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.

Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 14).

IMPORTANT: Install equipment shutoff valve in an accessible location within 6 feet of the appli- ance. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Approved Flexible Gas Hose (if allowed by local codes)

To Gas

Control

Valve CSA Design-Certified

Equipment Shutoff Valve

With 1/8" NPT Tap*

3" Minimum

Tee Pipe Cap

Joint Nipple

Sediment Trap

We recommend that you install a sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or fittings.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure ex- ternal regulator has been in- stalled between propane/LP supply and heater. See guide- lines under Connecting to Gas Supply, page 13.

Pressure Testing Gas Supply

Propane/LP - From

External Regulator

(11" W.C.** To 14"

W.C. Pressure)

Natural - From Gas

Meter (5" W.C.**

To 10.5" W.C.

Pressure)

Figure 14 - Gas Connection (Remote-Ready Models Only)

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 26.

**Minimum inlet pressure for purpose of input adjustment.

14

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116412-01B

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Contents Models VFRMV18NB, VFRMV18PB VFRMV24NB and VFRMV24PB Ansi Z21.11.2b-2004 Ansi Z21.60-2003Table of Contents Safety Information Safety Information Product Identification Optional Remote Control AccessoriesProduct Features Local CodesDetermining FRESH-AIR Flow Air For Combustion VentilationProviding Adequate Ventilation For Appliance LocationVentilation Air From Inside Building AIR for Combustion VentilationVentilation AIR Installation Ventilation Air From OutdoorsCeiling Installation and Clearances for vent-free operationCheck GAS Type Safe Installation Minimum Noncombustible Material ClearancesMantel Clearances Floor ClearancesInstalling Heater Assembly Installing Damper Clamp Accessory for Vented OperationInstalling Remote Control Accessory bracket Masonry Manufactured FireplaceFireplaceConnecting to GAS Supply Installation Items NeededPressure Testing Gas Supply Propane/LP From Checking GAS ConnectionsTest Pressures Equal To or Less Than Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsPiping System Test Pressures In Excess Of 1/2 Psig KPa Lighting Instructions For Your Safety Read Before LightingOperating Heater Propane/LPNatural Operating HeaterTo Turn OFF GAS To Appliance Shutting Off HeaterRemote Operation Manual Lighting ProcedureOptional Hand-Held On/Off Series Model HRC100Key Pad Lock Feature Safety FeaturesAuto Shutoff Feature Inspecting BurnersBurner Injector Holder Pilot Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Technical Service Cleaning MaintenanceWiring Diagram Propane/LPTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Maintenance,Operation Processes and logs curing Hours of operation Gas leak. See warning Checking Gas ConnectionsService Hints SpecificationsReplacement Parts AccessoriesAccessories Illustrated Parts Breakdown Models VFRMV18NB, VFRMV18PB, VFRMV24NB Shown and VFRMV24PBParts List 116412-01B 116412-01B Limited Warranty VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty

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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