Desa VI33PRB Checking Gas Connections, Natural, Pressure Testing Gas Supply Piping System

Models: VI33NRB VI33PRB

1 36
Download 36 pages 24.18 Kb
Page 14
Image 14
CHECKING GAS CONNECTIONS

INSTALLATION

Continued

3.Route gas supply line through access open- ing of fireplace insert (see Figure 15).

NOTICE: Most building codes do not permit concealed gas con- nections. A flexible gas line is provided to allow accessibility from the fireplace (see Figure 16). The flexible gas supply line con- nection to the equipment shutoff valve should be accessible.

4.Connect gas supply line to flexible gas line attached to gas regulator of fireplace insert (see Figure 16). Use sealant on all male pipe threads.

5.Check all gas connections for leaks. See Checking Gas Connections.

6.Replace log base assembly back into fireplace insert. Feed flexible gas line into fireplace in- sert base area while replacing log base assem- bly. Make sure the entire flexible gas line is in fireplace insert base area. Reattach log base assembly to fireplace insert with screws re- moved in step 2, page 13.

Burners

Two

 

Screws Log Base

Gas

Assembly

Line

 

 

Access

Figure 15 - Removing Log Base Assembly From Fireplace Insert

To Fireplace

 

Gas Regulator

Equipment

 

 

Shutoff Valve

 

Propane/LP

 

To External

Flexible Gas Line

Regulator

 

from Fireplace Gas

 

Regulator Provided

Natural

with Fireplace Insert

To Gas Meter

Figure 16 - Attaching Flexible Gas Lines

Together

CHECKING GAS CONNECTIONS

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM WARNING: Test all gas pip- ing and connections, internal and external to unit, for leaks after installing or servicing. Cor- rect all leaks at once.

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak de- tection 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 equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage fireplace insert gas regulator.

2.Cap off open end of gas pipe where equip- ment shutoff valve was connected.

3.Pressurize supply piping system by either open- ing propane/LP supply tank for propane/LP gas or opening main gas valve located on or near gas meter or using compressed air.

4.Check all joints of gas supply piping system. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect fireplace insert and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

14

www.desatech.com

113195-01A

Page 14
Image 14
Desa VI33PRB, VI33NRB installation manual Checking Gas Connections, Natural, Pressure Testing Gas Supply Piping System