Astria.US.com
126823-01C
14
INSTALLATION
Continued
We recommend that you install a sediment
trap in supply line as shown in
Figure 13,
Page 13
. Locate sediment trap where it is
within reach for cleaning. Install in piping sys-
tem between fuel supply and heater. Locate
sediment trap where trapped matter is not
likely to freeze. A sediment trap traps mois-
ture 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 fi ttings.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open fl ame to check for a leak.
Apply a noncorrosive leak detec-
tion fl uid 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 heater. See guidelines un-
der Connecting to Gas Supply,
Page 12.
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 equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig
(3.5 kPa) will damage heater 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 located 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
fl
uid to
all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect appliance and equipment
shutoff valve to gas supply. Check recon-
nected
fi
ttings for leaks.
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve
(see Fig-
ure 14).
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 equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP
(see Figure 15 or
Figure 16, Page 15)
. Apply noncorrosive
leak detection
fl
uid to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 14 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 15 - Checking Gas Joints
(Propane/LP Only)
Control Valve
Location
Propane/LP
Supply Tank
Equipment
Shutoff Valve
