Desa EFS33NRB - Manual (Page 15)

www.desatech.com 113132-01A 15
ON
POSITION
OFF
POSITION
2. Pressurize supply piping system by either
opening propane/LP supply tank valve for
propane/LP gas or opening main gas valve lo-
cated 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 sup-
ply to equipment shutoff valve for propane/LP
(see Figures 22 and 23). Apply noncorrosive
leak detection fluid to all joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
CHECKING GAS CONNECTIONS
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.
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.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
fireplace. See guidelines under
Connecting Fireplace to Gas
Supply, page 14.
Pressure Testing Gas Supply Piping
System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect fireplace with its main gas valve
(control valve) and equipment shutoff valve
from gas supply piping system. Pressures
in excess of 1/2 psig will damage fireplace
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 lo-
cated on or near gas meter for natural gas, or
using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace 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 21).
INSTALLATION
Continued
Figure 21 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff Valve
Figure 23 - Checking Gas Joints for
Propane/LP Gas
Propane/LP
Supply Tank
Figure 22 - Checking Gas Joints for
Natural Gas
Gas Control Valve
Equipment Shutoff Valve
Equipment Shutoff Valve
Gas Meter
Gas Control Valve
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Figure 21).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup-
ply tank valve.