Procom EN250TYLA-B Owner's Operation And Installation Manual page 7

CONNECTING TO GAS SUPPLY
WARNING: A qualified service per-
son must connect heater to gas supply.
Follow all local codes.
CAUTION: Never
directly to the gas supply. This heater
requires an external regulator (not
supplied). lnstall the external regulator
between the heater and gas supply.
INSTALLATION ITEMS NEEDED
Before installing heater, make sure you
have the items listed below.
piping (check local codes)
sealant (resistant to natural or propane/
LP gas)
equipment shutoff valve*
test gauge connection*
sediment trap
see joint
pipe wrench
flexible gas hose (check local codes).
* A CSA design-certified equipment shutoff
"
valve with 1/8 NPT tap is an acceptable
alternative to test gauge connection.
Purchase the optional CSA design-
certified equipment shutoff valve from
your dealer. See Accessories, page 14.
WARNING: Never connect heater to
private (non-utility) gas wells. This gas
is commonly known as wellhead gas.
Side View
Front
of
stove
unit
Figure 5-Gas Regulator Location and
Gas Line Access Into Stove Cabinet
* Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 14.
** 11" W.C. pressure is the minimum inlet pressure for purpose of input adjustment.
The installer must supply an external
regulator. The external regulator will
reduce incoming gas pressure. You
must reduce incoming gas pressure
to between 11 to 14 inches. If you do
connect heater
not reduce incoming gas pressure,
heater regulator damage could occur.
lnstall external regulator with the vent
pointing down as shown in Figure 6.
Pointing the vent down protects it
from freezing rain or sleet.
CAUTION: Only use a new black
iron or steel pipe. Internally-tinned
copper tubing may be used in cer-
tain areas. Check your local codes.
Use pipe of 1/2
to allow proper gas volume to heater.
If pipe is too small, undue loss of
pressure will occur.
Installation must include an equip-
ment 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 heater (see
Figure 7).
Front View
Figure 6- External Regulator
With Vent Pointing Down
INSTALLATION
Continued
"
diameter or greater
7
6
IMPORTANT: Install
shutoff valve in an accessible
location. The equipment shutoff
valve is for turning on or shutting
off the gas to the appliance.
Apply pipe joint sealant lightly to
male threads.This will prevent ex-
cess sealant from going into pipe.
Excess sealant in pipe could re-
sult in clogged heater valves.
CAUTION: Use pipe joint seal-
ant that is resistant to liquid
petroleum(LP) gas.
W e recommend that you install a
sediment trap in supply line as
shown in Figure 7. Locate sediment
trap where it is within reach for
cleaning. Install in piping system
between fuel supply and heater.
L o c at e sedim en t t r ap
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
is installed incorrectly, heater may
not run properly.
CAUTION: Avoid damage to
regulator. Hold gas regulator with
wrench when connecting into gas
piping and/or fittings.
NG MODELS: 5" to 10.5" W.C.
Gas supplier provides external
regulator for natural gas.
Figure 7 -Gas Connection
equipment
wh ere
installed or