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105056
BLUE-FLAME VENT-FREE PROPANE/LP AND
NATURAL GAS GREENHOUSE CO2 GENERATOR
Figure 13 - Gas Connection
* An A.G.A. or G.G.A. design certified manual shutoff valve with 1/8" NPT tap is an
acceptable alternative to test gauge connection. Purchase the optional A.G.A. or G.G.A.
design certified manual shutoff valve from your dealer. See Accessories, page 15.
Install sediment trap in supply line as shown
in Figure 13. Locate sediment trap where it
is within reach for cleaning. Locate sedi-
ment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture
and contaminants. This keeps them from
going into appliance controls. If sediment
trap is not installed or is installed wrong,
appliance may not run properly.
IMPORTANT:
Hold pressure regulator
with wrench when connecting it to gas pip-
ing and/or fittings.
CAUTION: Use pipe joint seal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Typical Inlet Pipe Diameters
30,000 Btu/Hr models 1/2" or greater
CONNECTING TO GAS
SUPPLY
Propane/LP Only: The installer must supply
an external regulator. The external regulator
will reduce incoming gas pressure. You
must reduce incoming gas pressure to be-
tween 11 and 14 inches of water. If you do
not reduce incoming gas pressure, appli-
ance regulator damage could occur. Install
external regulator with the vent pointing
down as shown in Figure 12. Pointing the
vent down protects it from freezing rain or
sleet. Minimum inlet pressure shall be no
less than 11 inches of water.
NOTICE: A qualified service per-
son must connect CO2 generator
to gas supply. Follow all local
codes.
CAUTION: (Propane/LP Only)
Never connect appliance directly
to the propane/LP supply. This
appliance requires an external
regulator (not supplied). Install the
external regulator between the
appliance and propane/LP supply.
Figure 12 - External Regulator with Vent
Pointing Down (Propane/LP Only)
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of 1/2"
diameter or greater to allow
proper gas volume to appliance.
If pipe is too small, undue loss of
pressure will occur.
INSTALLATION
Continued
External
Regulator
Propane/
LP Supply
Tank
Vent
Pointing
Down
3" Minimum
Tee Joint
Reducer Bushing
to 1/8" NPT
1/8" NPT Plug Tap
Test
Gauge
Connection *
Tee Joint
Pipe Nipple
Cap
Cabinet
Pressure
Regulator
3/8" NPT
Pipe
Nipple
Ground Joint
Union
Manual
Shutoff
Valve *
Propane/LP Only:
Typical Inlet
Pipe From
External Regulator
(11" W.C. to 14"
W.C. Pressure)
Sediment
Trap
Note:
Burner bracket
not shown for clarity
Continued
Natural Only:
Typical Inlet
Pipe From Gas
Meter
(4" W.C. to 10.5"
W.C. Pressure)
WARNING: Never connect
appliance to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
Natural Gas Only:
IMPORTANT:
Check gas
line pressure before connecting appliance to
gas line. Gas line pressure must be no greater
than 10.5 inches of water. If gas line pres-
sure is higher, appliance regulator damage
could occur. Minimum inlet pressure shall
be no less than 4 inches of water.
Installation must include a manual shutoff
valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from
appliance (see Figure 13).
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 appliance valves.