Installation – Desa VML27PR User Manual

Page 17

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111115-01F

1

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

1. Close equipment shutoff valve (see Figure 19).

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 to equipment

shutoff valve for natural gas or propane/LP

supply to equipment shutoff valve for propane/

LP (see Figure 20 or 21). Apply noncorrosive

leak detection fluid to all joints. Bubbles form-

ing show a leak.

4. Correct all leaks at once.

inStALLAtion

Continued

Figure 19 - Equipment Shutoff Valve

Open

Closed

Equipment
Shutoff Valve

pRESSURE TESTING HEATER GAS
CONNECTIONS

1. Open equipment shutoff valve (see Figure 19).

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 heater is in the OFF

position.

4. Check all joints from equipment shutoff valve

to control valve (see Figure 20 or 21). Apply

noncorrosive leak detection fluid to all joints.

Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater, page 19).

Check all other internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appli-

ance, page 20).

INSTALLING LOGS

WARNING: Failure to posi-

tion the parts in accordance

with these diagrams or failure

to use only parts specifically

approved with this heater may

result in property damage or

personal injury.

CAUTION: After installa-

tion and periodically thereafter,

check to ensure that no flame

comes in contact with any log.

With the heater set to HI, check

to see if flames contact any log. If

so, reposition logs according to

the log installation instructions

in this manual. Flames contact-

ing logs will create soot.

It is very important to install the logs exactly as

instructed. Do not modify logs. Only use logs

supplied with heater.

1. Place base log (#1) on grate to fit as illustrated

in Figure 22, page 18. Make sure open areas of

log set line up with burner ports (see Figure 23,

page 18). Log will fit securely on chassis.

IMPORTANT: Make sure log does not cover

any burner ports.

Figure 21 - Checking Gas Joints for

Propane/LP Gas

Control Valve Location

Propane/LP
Supply Tank

Equipment Shutoff Valve

Figure 20 - Checking Gas Joints for

Natural Gas

Gas Meter

Equipment Shutoff Valve

Control Valve
Location

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