Desa NZ100, NZ119 Checking GAS Connections, Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa

Page 13

Installation

Continued

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 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.

Install sediment trap in supply line as shown in Figure 17, page 12. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps mois- ture 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 the pressure regulator with wrench when connecting it to gas pip- ing and/or fittings. Do not over tighten pipe connection to regulator. The regulator body could be damaged.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, 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.

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 equip- ment 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 equip- ment 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 sys- tem. 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 18).

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 19) or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 20). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Equipment

Open

 

Shutoff Valve

 

CAUTION: For propane/LP gas, make sure external regula- tor has been installed between propane/LP supply and heater. See guidelines under Connect- ing to Gas Supply, page 12.

Closed

Figure 18 - Equipment Shutoff Valve

118621-01B

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Contents Actual heater may Vary from illustration What to do if YOU Smell GASSafety Information Table of ContentsSafety Information Product Identification Product FeaturesLocal Codes UnpackingProviding Adequate Ventilation Air For Combustion VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation AIR InstallationCheck GAS Type Ventilation Air From Inside BuildingLocating Heater Installation ItemsHeaterpilotandburnermustbeat least 18 45.7 cm above floor This heater is designed to be mounted on a wallInstalling Heater to Wall Attaching To Wall Stud Method Installing Bottom Mounting ScrewsAttaching To Wall Anchor Method Placing Heater On Mounting BracketInstalling batteries into remote Installing Remote Control ReceiverMounting Base Feet to Floor Where required by local code Mounting heater to floor With optional floor kitConnecting to GAS Supply Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Checking GAS ConnectionsClose equipment shutoff valve see Figure Pressure Testing Heater Gas Connections Connecting to electrical supplyExtension Cord Operating Heater For Your Safety Read Before LightingLighting Instructions Do not try to light any applianceTo Turn OFF GAS To Appliance Manual Lighting ProcedureHand-Held Remote Operation Setting Fahrenheit and Celsius Scale Setting the ClockSetting Programs ButtonsChildproof Lock Out CP Low Battery IndicatorReceiver Slide Code SettingGeneral Information Operating Blower Inspecting HeaterPilot Flame Pattern Burner Flame PatternService Hints Cleaning MaintenanceTechnical Service ODS/PILOT and BurnerObserved Problem Possible Cause Remedy TroubleshootingClean burner orifices Replace pilot assembly Replace control valveBurner backfiring during Combustion Or damagedBatteries not installed cor Service personStalled. Battery power is Replace batteries in re Low When heated, vapors fromGas leak. See Warning Models Illustrated Parts Breakdown117103-04 Parts List097555-01 Not a field replaceable part Burner Assembly Illustrated Parts Breakdown and Parts ListWiring Diagrams SpecificationsAccessories Replacement PartsService Publications Parts Central Keep this Warranty Warranty InformationModel 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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