INSTALLATION

Continued

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

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

1.Close equipment shutoff valve (see Figure 8).

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.

Pressure Testing Appliance Gas Connections

1.Open equipment shutoff valve (see Figure 8).

2.Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3.Make sure control knob of appliance is in the OFF position.

4.Check all joints from equipment shutoff valve to gas control (see Figure 9 or 10). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light appliance (see Operating Appliance, page 10) Check all other internal joints for leaks.

3.

Check all joints from gas meter to equipment

7.

Turn off appliance.

 

shutoff valve for natural gas or propane/LP

PLACEMENT OF LOOSE EMBERS

 

supply to equipment shutoff valve for propane/

 

 

 

 

LP (see Figure 9 or 10). Apply noncorrosive

 

 

 

leak detection fluid to all joints. Bubbles form-

 

CAUTION: Do not place

 

ing show a leak.

 

any loose embers around pilot

 

Equipment

Open

 

assembly.

 

Shutoff

 

 

 

 

Valve

 

Two bags of loose embers are provided with this

 

 

 

unit. For this installation use the embers that are

 

 

Closed

approximately 1" square in size. If needed, larger

 

Figure 8 - Equipment Shutoff Valve

embers can be broken to size. These embers aid in

 

concealing the burner pan, directing flames through

 

 

 

Propane/LP

Equipment

the ember bed, quiet operation of the unit and gives

Supply Tank

Shutoff Valve

a natural random flame pattern.

 

 

 

Place embers as follows:

 

 

 

1.

Place embers around the center ember bed or

 

 

 

 

ember pod.

 

 

 

2.

Place individual embers on their edge (not flat)

 

 

 

 

along the top of the burner pan. This aids in di-

 

 

 

 

recting flames from the burner through the ember

 

 

 

 

bed. Note: Too many embers or embers placed

 

 

Control Valve

 

flat along burner pan can suppress the flames.

 

 

 

 

 

 

Location

3.

When unit is lit, check flames for random appear-

 

Figure 9 - Checking Gas Joints

 

ance and ember bed glowing red-orange in color

 

(Propane/LP Gas Only)

 

(see Burner Flame Pattern, page 11). If this is

 

 

not happening, either add, remove or reposition

 

 

Equipment

 

 

 

 

loose embers. IMPORTANT: Turn unit off and

 

 

Shutoff Valve

 

 

 

 

let cool before repositioning loose embers.

 

 

 

 

Gas Meter

Control Valve Location

Figure 11 - Placement of Embers

Figure 10 - Checking Gas Joints

(Natural Gas Only)

114925-01C

www.desatech.com

9

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Desa MPF18VPA, MPF24VPA, MPF18VNA Placement of Loose Embers, Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa
Page 8 Page 10

MPF18VNA, MPF24VPA, MPF18VPA specifications

The Desa MPF24VPA, MPF18VPA, and MPF18VNA are innovative models designed for efficient heating solutions tailored to a variety of residential and commercial applications. These products showcase advanced technology and engineering that cater to diverse consumer needs, making them notable players in the heating equipment market.

One of the defining features of the Desa MPF series is their high heating capacity. The MPF24VPA, for instance, can deliver a robust output suitable for larger spaces, while the MPF18VPA and MPF18VNA offer slightly lower capacities, making them ideal for smaller areas. This range allows consumers to choose models according to the specific requirements of their environments.

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In conclusion, the Desa MPF24VPA, MPF18VPA, and MPF18VNA are exemplary heating units that combine efficiency, effectiveness, and safety. With diverse features and options designed to cater to a wide audience, these models stand out as reliable choices for anyone looking for high-quality heating solutions. Whether for a cozy home or a bustling commercial space, the Desa MPF series is engineered to deliver warmth and comfort through innovative design and technology.
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