Desa VFRMV18PA, VFRMV18NA, VFRMV24NA, VFRMV24PA Test Pressures In Excess Of 1/2 Psig 3.5 kPa

Page 15

INSTALLATION

Continued

PRESSURE TESTING GAS SUPPLY 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

Propane/LP Supply Tank

Equipment

Shutoff Valve

Control Valve

Location

 

heater regulator.

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 14).

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 supply to equipment shutoff valve for propane/ LP (see Figure 15 or 16). Apply noncorrosive leak detection fluid to all joints. Bubbles form- ing show a leak.

4.Correct all leaks at once.

Equipment

Open

Shutoff

 

Valve

 

 

Closed

Figure 14 - Equipment Shutoff Valve

Figure 15 - Checking Gas Joints

(Propane/LP Gas Only)

Equipment

Shutoff Valve

Gas Meter

Control Valve

Location

Figure 16 - Checking Gas Joints

(Natural Gas Only)

PRESSURE TESTING HEATER GAS CONNECTIONS

1.Open equipment shutoff valve (see Figure 14).

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 15 and 16). 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.

114745-01B

www.desatech.com

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Contents Ansi Z21.11.2a-2003 Ansi Z21.60-2003 VFRMV18NA, VFRMV18PA VFRMV24NA, VFRMV24PATable of Contents Safety Information Provide adequate clearances around air openings Product Identification Local CodesUnpacking AIR for Combustion Ventilation Providing Adequate 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 ClearancesMasonry Manufactured FireplaceFireplace Installing Damper Clamp Accessory for Vented OperationInstalling Heater Assembly Installation Items NeededPropane/LP External Regulator Supply Tank Vent Pointing Down Connecting to GAS SupplyChecking GAS Connections To Gas Control ValvePropane/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 kPaFor Your Safety Read Before Lighting Operating HeaterLighting Instructions To Turn OFF GAS To Appliance Propane/LP NaturalShutting Off Heater Thermostat Series Model Ghrctb Manual Lighting ProcedureOptional HAND-HELD Remote Operation ON/OFF Series Model GhrcbCheck pilot flame pattern and burner flame pat- terns often Auto Shutoff FeatureInspecting Burners Pilot Flame PatternCleaning Maintenance Burner Flame PatternBurner Injector Holder and Pilot AIR Inlet Hole Propane/LP Wiring DiagramObserved Problem Possible Cause Remedy TroubleshootingLow gas pressure Assembly Out when control knob is reSafety interlock system has Clean ODS/pilot seeTurning control knob to HI Cleaners or similar productsGas regulator defective Replace gas regulator Operation Processes and logs curing Hours of operationGas leak. See Warning Accessories SpecificationsReplacement Parts Technical ServiceFB36CA, FB42C Series CIRCULATING, FB36NCA, FB42NC Receiver and HAND-HELD Thermostat Remote Control KIT GhrctbReceiver and HAND-HELD Remote Control KIT Ghrcb WALL-MOUNT Thermostat Switch GWMT1VFRMV18NA, VFRMV18PA Illustrated Parts BreakdownParts List 114745-01B 114745-01B Warranty Information Keep this WarrantyLimited 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.
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