HearthSense BF10M-B Manual De Funcionamiento página 16

For propane installations, apply pipe joint
sealant lightly to male threads. This will
prevent excess sealant from going into pipe.
Excess sealant in pipe could result in clogged
heater valves.
The installer must supply an external regulator.
The external regulator will reduce incoming
gas pressure. You must reduce incoming gas
pressure to between 11" and 14" of water. If
you do not reduce incoming gas pressure,
heater regulator damage could occur. Install
Ground
Joint Union
Tee Joint
Reducer
Bushing to
Test Gauge
1/8" NPT
Connection*
1/8" NPT
Plug Tap
Tee Joint
Sediment
Pipe Nipple
Trap
Gap
Figure 15 - Gas Connection
* Purchase the optional CSA design-certified equipment
shutoff valve from your dealer.
WARNING: Test all gas piping
and connections for leaks after
installing or servicing. Correct
all leaks at once.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect heater with its appliance main
gas valve (control valve) and equipment
shutoff valve from gas supply piping sys-
tem. Pressures in excess of 1/2 PSIG 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 supply tank valve for
propane gas or opening main gas valve
16
INSTALLATION
3/8" NPT
Pipe Nipple
3" Minimum
CHECKING GAS CONNECTIONS
HearthSense
external regulator with the vent pointing down
as shown in Figure 16. Pointing the vent down
protects it from freezing rain or sleet.
Install sediment trap in supply line as shown
in Figure 15. Place sediment trap where it is
within reach for cleaning. Place sediment trap
where trapped matter is not likely to freeze. A
sediment trap traps moisture 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.
Equipment
Shutoff Valve
Natural Gas
From Gas Meter
(5" W.C.** to 9.5" W.C.
Pressure)
Propane
From External
Regulator (11"
W.C.** to 14" W.C.
Pressure)
Figure 16 - External Regulator
with Vent Pointing Down
WARNING: Never use an open
flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. If bubbles form, there
is a leak. Correct all leaks at once.
located on or near gas meter for natural
gas or using compressed air.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap and
water to gas joints. If bubbles form, there
may be a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
fittings for leaks.
External
Regulator with
Propane
Vent Pointing
Supply Tank
Down
200549-01A