Desa MVO18VPA Checking GAS Connections, Natural, Propane/LP, Test Pressures In Excess Of 1/2 Psig

Page 8

INSTALLATION

Continued

CAUTION:Useonlynew,black ironorsteelpipe.Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas vol- ume to heater. If pipe is too small, undue loss of volume will occur.

Installation must include an 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 log set (see Figure 7).

IMPORTANT: Install equipment shutoff valve in an accessible location.The equipment 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.

We recommend that you install a sediment trap in supply line as shown in Figure 7. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and appliance. Locate sediment 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.

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or fittings.

 

 

CSA Design-Certified

 

 

Equipment Shutoff

 

 

Valve with 1/8" NPT

 

 

Tap*

Natural

 

 

 

 

 

 

From Gas

Approved Flexible

 

Meter (5" W.C.**

Gas Hose (If

 

 

to 10.5" W.C.

allowed by local

 

Pressure)

codes)

3" Min.

 

 

 

 

Propane/LP

Pipe

Cap

Tee

From External

Regulator (11"

Nipple

Joint

W.C.** to 14"

Sedament Trap

W.C. Pressure)

 

 

 

Figure 7 - Gas Connection

*Purchase the optional CSAdesign-certified shutoff valve from your dealer. See Accessories, page 17.

** Minimum inlet pressure for purpose of input adjustment.

CHECKING GAS CONNECTIONS

 

WARNING: Test all gas piping

and connections 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 detection fluid

toalljoints.Bubblesformingshow

a leak. Correct all leaks at once.

 

CAUTION: Make sure exter-

nal regulator has been installed

between propane/LP supply

and appliance. See guidelines

under Connecting to Gas Sup-

ply, page 7.

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 control valve.

2.

Cap off open end of gas pipe where equipment

 

shutoff valve was connected.

8

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114924-01B

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Contents What to do if YOU Smell GAS MVO24VNA, MVO24VPA MVO18VNA and MVO18VPATable of Contents Safety Information Provide adequate clearances around air openings Local CodesHigh traffic areas Windy or drafty areas Product Features InstallationRemove log set assembly from carton Product IdentificationInstallation and Clearances Flue Opening SpecificationsVenting Specifications for InstallationInstallation Items Needed Installing ApplianceConnecting to GAS Supply Checking GAS Connections NaturalPropane/LP Test Pressures In Excess Of 1/2 PsigTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Placement of Loose EmbersPressure Testing Appliance Gas Connections Lighting Instructions For Your Safety Read Before LightingOperating Appliance Wiring Diagram When Using RemoteTo Turn OFF GAS To Appliance Optional HAND-HELD Remote OperationCleaning Maintenance Inspecting BurnersPilot Flame Pattern Check pilot flame pattern and burner flame pat- terns oftenTroubleshooting Observed Problem Possible Cause RemedyContact local natural or Pilot is lit Burner orifices clogged Propane/LP gas companyReplace burner orifices Replace burner orificeBurners are lit Position when burners are Operation Processes and log curing Hours of operationTurn control knob to LO Cold Minute Air is gas line Operate burners until air isGas leak. See Warning statement at top Gas leak. See WarningStatement at top Service Hints Technical ServiceAccessories Replacement PartsIllustrated Parts Breakdown MVO24VNA, MVO24VPA MVO18VNA, MVO18VPAParts List Limited Warranty Vented GAS LOG Appliances Warranty InformationKeep this Warranty

MVO24VPA, MVO18VNA, MVO18VPA, MVO24VNA specifications

Desa MVO18VPA, MVO24VPA, MVO18VNA, and MVO24VNA represent a line of versatile and efficient heating solutions designed for various residential and commercial applications. These models are tailored to meet diverse user requirements while providing exceptional value through advanced technologies and features.

At the core of the Desa line is the commitment to energy efficiency. The MVO series incorporates high-efficiency motors and advanced heat exchange systems that ensure optimal performance while minimizing energy consumption. This not only leads to cost savings on utility bills but also reflects a commitment to sustainability, making these models an excellent choice for eco-conscious consumers.

In terms of heating capacity, the MVO18 models offer a robust output suitable for medium-sized spaces, while the MVO24 models are designed for larger areas, providing flexibility for different applications. The ability to adjust heating levels allows users to customize their environment according to their specific needs, enhancing comfort.

The MVO series is equipped with innovative technologies that ensure consistent performance. The integration of intelligent temperature controls provides precise management of heating levels, enabling users to maintain their desired comfort without unnecessary energy expenditure. Additionally, these models feature durable construction materials that ensure longevity and reliable operation over time.

User convenience is a significant consideration in the design of the MVO series. Remote control functionality allows users to effortlessly adjust settings from a distance, adding a layer of convenience for those with busy lifestyles. Furthermore, some models are equipped with programmable timers, enabling users to set specific heating schedules that align with their daily routines.

Safety is paramount in the design of the Desa MVO series. These models come with multiple safety features, including overheat protection and automatic shut-off mechanisms, ensuring peace of mind for users.

In summary, the Desa MVO18VPA, MVO24VPA, MVO18VNA, and MVO24VNA heating models stand out for their energy efficiency, advanced heating technologies, and user-friendly features. Their adaptability makes them suitable for a range of environments, catering to the diverse needs of homeowners and businesses alike. With a focus on safety and reliability, the Desa MVO series represents an excellent investment for those seeking effective heating solutions.
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