Desa VN30TA, VN18A, VP16A, VP26A, VP26TA VN30A, VP16TA Test Pressures In Excess Of 1/2 Psig 3.5 kPa

Page 13

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 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 a 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 fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 16).

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 for natural gas (see Figure 17) or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 18). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

PRESSURE TESTING HEATER GAS CONNECTIONS

1.Open equipment shutoff valve (see Figure 16).

2.For natural gas open main gas valve located on or near gas meter. For propane/LP gas 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 thermostat gas valve (see Figure 17 or 18). Apply a 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 14 ). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Ap- pliance, page 15 or 17 depending on your model).

8.Replace front panel.

Equipment

Open

 

Shutoff Valve

 

 

Closed

Figure 16 - Equipment Shutoff Valve

Thermostat Gas Valve

Gas

Meter

Equipment

Shutoff Valve

Figure 17 - Checking Gas Joints for

Natural Gas

Thermostat Gas Valve

Propane/LP

Supply Tank

Equipment

Shutoff

Valve

Figure 18 - Checking Gas Joints for

Propane/LP Gas

113052-01D

www.desatech.com

13

Image 13
Contents Model VN30A Shown VN30A, VN30TA, VP16ITA, VP22ITATable of Contents Safety Information Local Codes Product FeaturesUnpacking Providing Adequate Ventilation AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Building Ventilation AIRInstallation Items InstallationCheck GAS Type Locating HeaterThermostat Sensing Bulb Installing Heater to WallThermostat Models Only Mounting BracketMarking Screw Locations Methods For Attaching Mounting Bracket To Wall5 Plaque Heaters Plaque HeaterPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Connecting to GAS SupplyMounting Heater to Floor Mounting Base Feet to HeaterNatural Gas Checking GAS ConnectionsPropane/LP 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 NON-THERMOSTAT Models For Your Safety Read Before LightingLighting Instructions Thermostat Models For Your Safety Read Before Lighting Manual Lighting ProcedureTo Select Heating Level To Turn OFF GAS To ApplianceTurn thermostat control knob counter If pilot does not lightIgnitor Button Control Knob Plaque Thermostat OperationShutting Off Heater Pilot Flame Pattern Inspecting HeaterBurner Flame Pattern ODS/PILOT and Burner Cleaning MaintenanceBurner Pilot AIR Inlet CabinetObserved Problem Possible Cause Remedy TroubleshootingODS/pilot lights but flame Gas leak. See Warning When heated, vapors fromSpecifications Illustrated Parts Breakdown Parts List Cabinet Body Models VP16ITA and VP22ITA KEY Part Number VP16ITA VP22ITA Description QTY Burner Assembly Models VP16A and VN18A Illustrated Parts Breakdown and Parts ListODS/Pilot Burner Assembly VP26A, VN30A Burner Assembly Models VP26A and VN30ABurner Assembly VP22ITA Burner Assembly VP16ITA Burner Assembly Models VP16ITA and VP22ITABurner Assembly Models VP16TA, VN18TA, VP26TA and VN30TA Service Publications Service Hints Replacement PartsTechnical Service Parts Under WarrantyParts Central AccessoriesFAN Kits GA3250T Equipment Shutoff Valve GA5010113052-01D 113052-01D Keep this Warranty Warranty InformationLimited Warranty Vanguard VENT-FREE Infrared GAS Heaters