Desa NZ107 NZ116, NZ119, NZ118, NZ100, NZ105, NZ102, NZ101, NZ103 NZ104, NZ117 Connecting to GAS Supply

Page 12

Installation

Continued

CONNECTING TO GAS SUPPLY

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

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

WARNING: For natural gas, never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT: For natural gas, check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 10.5" of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION: For propane/LP gas, never connect heater di- rectly to the propane/LP supply. This heater requires an external regulator (not supplied). Install theexternalregulatorbetweenthe heater and propane/LP supply.

For propane/LP gas, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of water. If you do not reduce incom-

Propane/LP

 

Supply Tank

External

 

Regulator

 

with Vent

 

Pointing

 

Down

Figure 16 - External Regulator With Vent

Pointing Down

ing gas pressure, heater regulator damage could occur. Install the external regulator with the vent pointing down as shown in Figure

16.Pointing the vent down protects it from freezing rain or sleet.

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 volume will occur.

Typical Inlet Pipe Diameters

16-18,000 Btu/hr models - 3/8" or greater

26-30,000 Btu/hr models - 1/2" or greater

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 17).

Pressure

 

 

 

Regulator

 

 

3/8" NPT

 

 

 

 

Regulator

 

 

Pipe

Bracket

 

 

Nipple

Heater

 

 

Ground

Cabinet

 

 

Joint

Connection*

 

 

 

Union

Tee Joint

 

Equipment

 

 

 

 

 

 

 

Reducer

 

Shutoff

 

Bushing to

 

Valve*

Gauge

1/8" NPT

 

Natural Gas

Plug Tap

Min.

Meter (7" W.C.

Test

1/8" NPT

3"

From Gas

 

 

 

to 10.5" W.C.

 

 

 

 

 

Tee

Pipe Cap

 

Pressure)

 

 

Propane/LP

 

Joint

Nipple

 

 

Sediment Trap

 

From External

 

 

Regulator

(11" W.C. to 14" W.C. Pressure)

Figure 17 - Gas Connection

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable al- ternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Acces-

sories, page 30.

12

www.desatech.com

118621-01B

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Contents What to do if YOU Smell GAS Actual heater may Vary from illustrationTable of Contents Safety InformationSafety Information Product Features Product IdentificationLocal Codes UnpackingAir For Combustion Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceInstallation Ventilation AIRCheck GAS Type Ventilation Air From Inside BuildingInstallation Items Locating HeaterHeaterpilotandburnermustbeat least 18 45.7 cm above floor This heater is designed to be mounted on a wallInstalling Heater to Wall Installing Bottom Mounting Screws Attaching To Wall Stud MethodAttaching To Wall Anchor Method Placing Heater On Mounting BracketInstalling Remote Control Receiver Installing batteries into remoteMounting Base Feet to Floor Where required by local code Mounting heater to floor With optional floor kitConnecting to GAS Supply Checking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaClose equipment shutoff valve see Figure Connecting to electrical supply Pressure Testing Heater Gas ConnectionsExtension Cord For Your Safety Read Before Lighting Operating HeaterLighting Instructions Do not try to light any applianceManual Lighting Procedure To Turn OFF GAS To ApplianceHand-Held Remote Operation Setting the Clock Setting Fahrenheit and Celsius ScaleSetting Programs ButtonsLow Battery Indicator Childproof Lock Out CPCode Setting Receiver SlideGeneral Information Inspecting Heater Operating BlowerPilot Flame Pattern Burner Flame PatternCleaning Maintenance Service HintsTechnical Service ODS/PILOT and BurnerTroubleshooting Observed Problem Possible Cause RemedyReplace pilot assembly Replace control valve Clean burner orificesBurner backfiring during Combustion Or damagedService person Batteries not installed corStalled. Battery power is Replace batteries in re Low When heated, vapors fromGas leak. See Warning Illustrated Parts Breakdown ModelsParts List 117103-04097555-01 Not a field replaceable part Illustrated Parts Breakdown and Parts List Burner AssemblySpecifications Wiring DiagramsReplacement Parts AccessoriesService Publications Parts Central Warranty Information Keep this WarrantyModel Serial No Date Purchased Industrial Drive P.O. Box 118621-01 Rev. B

NZ103 NZ104, NZ119, NZ102, NZ100, NZ118 specifications

Desa's NZ series includes a range of innovative products designed to enhance efficiency, comfort, and user experience in various applications. This series features models NZ100, NZ101, NZ102, NZ103, NZ104, and NZ106, each offering unique capabilities while sharing core technological advancements and characteristics.

The NZ100 model is renowned for its compact size and energy efficiency. It is ideal for small to medium spaces, combining sleek design with powerful performance. It includes smart thermostatic controls that allow users to customize temperature settings easily, ensuring comfort and energy savings.

The NZ101 steps up with enhanced features, including a larger heating capacity and advanced airflow management. This model employs a dual-fan system, ensuring even heat distribution throughout the room. Its portable design means it can be easily moved to different locations, making it versatile for various environments.

NZ102 integrates cutting-edge technology with modern aesthetics. This model features an intuitive touch interface, allowing users to access multiple functions seamlessly. Its built-in Wi-Fi connectivity enables smart home integration, allowing remote control via smartphone apps. Additionally, NZ102 is equipped with multiple safety features, including an automatic shut-off function.

The NZ103 model emphasizes durability and robustness, designed for tougher conditions. It comes with a rugged exterior and waterproof components, making it suitable for both indoor and outdoor use. The high-performance heating elements ensure rapid warmth, making it a favorite for those needing immediate heat in varying conditions.

NZ104 focuses on enhancing user comfort and customization. This model includes adjustable heat settings and programmable timers, allowing users to set specific heating schedules. Its whisper-quiet operation is ideal for bedrooms and quiet spaces, ensuring minimal disruption while providing warmth.

Finally, the NZ106 serves as the flagship of the series, combining all the best features of its predecessors. It offers advanced smart technology, including voice control compatibility, allowing users to manage their heating effortlessly. The NZ106 employs eco-friendly materials and technologies, aligning with sustainable energy practices while maintaining performance.

Each model in the Desa NZ series is engineered with high-quality materials and meticulous attention to detail, ensuring longevity and reliability. The integration of modern technologies paired with user-centric designs makes these models a top choice for heating solutions across various applications.
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