Vanguard Heating VN2550ITB, VN1800ITB Connecting to GAS Supply, Typical Inlet Pipe Diameters

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®

VENT-FREE NATURAL GAS HEATER

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

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

WARNING: A qualified service person must connect heater to gas supply. Follow all local codes.

IMPORTANT: Install an equipment shutoff valve in an accessible location. The equip- ment shutoff valve is for turning on or shutting off the gas to the appliance.Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Locate sedi- ment 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.

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas pip- ing and/or fittings.

WARNING : Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas.

IMPORTANT: Check gas line pressure be- fore connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

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 large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pres- sure will occur.

Typical Inlet Pipe Diameters

VN1800ITB 3/8" or greater

VN2550ITB 1/2" or greater

 

Pressure

 

 

 

Regulator

 

 

 

Regulator

 

 

 

Bracket

 

 

 

 

3/8" NPT

 

Heater

Pipe Nipple

 

Cabinet

 

 

 

 

Ground Joint

 

 

 

Union

 

 

Tee Joint

 

 

Test

Reducer

 

Equipment

Bushing to

 

Shutoff

Gauge

 

1/8" NPT

Typical

Valve *

 

Connection *

Inlet Pipe

 

 

1/8" NPT

From Gas

 

 

 

Plug Tap

 

Meter

 

 

 

(7" W.C. to

 

 

 

10.5" W.C.

 

Tee Joint

 

Pressure)

Sediment

 

 

Trap

Pipe Nipple

3" Minimum

 

 

Cap

 

 

Figure 13 - Gas Connection

 

 

Installation must include 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 13).

*A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design-certified equipment shutoff valve from your dealer. See Accessories, page 23.

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Contents Infrared VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information VENT-FREE Natural GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Locating Heater InstallationInstallation Items Check GAS TypeInstalling Heater to Wall Thermostat Sensing BulbAttaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Connecting to GAS Supply Typical Inlet Pipe DiametersPressure Testing Heater Gas Connections Pressure Testing Gas Supply Piping SystemChecking GAS Connections Operating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureTo Select Heating Level Thermostat OperationCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyVENT-FREE Natural GAS Heater Heater produces unwanted odors Illustrated Parts Breakdown VN1800ITBParts List KEY Part Number Description QTYVN2550ITB20 VN2550ITB Technical Service SpecificationsReplacement Parts Service HintsFloor Mounting Stand AccessoriesEquipment Shutoff Valve GA5010 Models VN1800ITB GA4000B Models VN2550ITB GA4010BWarranty Information

VN2550ITB, VN1800ITB specifications

The Vanguard Heating VN1800ITB and VN2550ITB are high-efficiency heating solutions designed to cater to the diverse needs of residential and commercial spaces. These units exemplify advanced technology, offering reliable and consistent warmth while prioritizing energy efficiency.

The VN1800ITB model is engineered to deliver a powerful heating capacity of 18,000 BTUs, making it suitable for medium-sized rooms. It boasts a sleek design that allows for seamless integration into various decor styles. One of the standout features of the VN1800ITB is its innovative variable-speed blower, which not only enhances comfort by maintaining even temperatures but also reduces energy consumption. The blower adjusts its speed based on demand, resulting in quieter operation and improved efficiency.

In addition, the VN1800ITB includes a state-of-the-art digital thermostat that enables precise temperature control. Users can easily program heating schedules, leading to further savings on energy bills. The inclusion of a high-quality air filter improves indoor air quality by trapping dust and allergens, making it an ideal choice for households with allergy sufferers.

On the other hand, the VN2550ITB offers an impressive heating capacity of 25,000 BTUs, making it suitable for larger areas. This model incorporates similar advanced features as its counterpart, including the variable-speed blower and digital thermostat. However, it also features enhanced insulation, which minimizes heat loss and increases overall efficiency. The VN2550ITB is equipped with advanced safety features, including overheat protection and a flame rollout switch, ensuring the unit operates safely even in demanding conditions.

Both models utilize cutting-edge combustion technology that maximizes warmth while minimizing emissions. This commitment to environmental responsibility not only helps users meet local regulations but also contributes to a greener planet.

In conclusion, the Vanguard Heating VN1800ITB and VN2550ITB combine performance, efficiency, and safety features in aesthetically pleasing designs. These heating units provide dependable warmth, programmable convenience, and a commitment to indoor air quality, making them a smart investment for those seeking effective heating solutions.
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