Gas Connections And Regulations.12; Instructions For Pressure Test Gauge Connection.12 - Space-Ray LTS Series Assembly, Installation And Operation Instructions

20) GAS CONNECTIONS AND REGULATIONS
1. Connect to the supply tank or manifold in accordance with the iatest edition of National Fuel Gas Code (ANSI Z223.1),
and local building codes. Authorities having jurisdiction should be consulted before the installation is made. (In Canada,
refer to the latest edition of CAN Standard B.149-1 & -2, Installation Codes for Gas Burning Appliances and Equipment.)
2. All gas supply lines must be located in accordance with the required clearances to combustibles below the heater as
listed on the nameplate of the heater.
3. Pipe joint compounds must be resistant to the action of liquefied petroleum gases.
4. Straight tube heaters (LTS series) can expand/contract during operation. If rigid pipe connections are planned, provisions
for expansion/contraction must be provided. Where local codes do not prohibit, a CSA or U.L approved flexible connector
(minimum 5/8" I.D.) is recommended between the rigid piping and the heater. A union and an approved shut off valve
should be installed before the control valve inlet. The shut off valve should be installed within 6 feet of the union.
5. This appliance is equipped with a step-opening, combination gas valve. The maximum supply pressure to the appliance
Is 14" W.C. or 1/2 P.S.I. If the line pressure is more than the maximum supply pressure, then a second stage regulator
which corresponds to the supply pressure must be used.
6. If a
2''<'
stage regulator is used and gas seeps through it, the redundant combination gas valve is designed to lock out.
Pressure build-up in the supply lines prior to the heater must be released before proper heater operation.
7. After all gas connections have been made, make sure the heater and all gas outlets are turned off before the main gas
supply is turned on. Turn the gas pressure on and check for leaks. To check for leaks, apply a soap suds solution to all
connections and joints or check by one of the methods listed in Appendix D of the National Fuel Gas Code.
¥ Ava//abfe as Accessories
SIDE VIEW
21) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION
♦ Supply Pressure
1. The installer will provide a
1/8'
N.P.T. plugged tapping, accessible for test gauge connection immediately upstream of
the gas supply connection to the heater.
♦ Manifold Pressure
1. Turn the gas valve to the "OFF" position. Remove the
1/8'
plug from the combination gas valve at the outlet pressure tap
and connect a
1/8'
nipple to the tapped hole. Connect the gauge to the nipple. Turn on the gas supply.
2. With the main burner operating, check the burner manifold pressure using a water manometer. Gauges that measure
pressure in pounds per square inch are not accurate enough to measure or set the manifold pressure. All measurements
MUST BE made when this heater and ail other gas burning equipment that is connected to the gas supply system are
operating at maximum capacity.
3. The combination gas valve is factory set and should
acaution
not be adjusted. If full rate adjustment is required,
remove the cover screw. Using a small screwdriver,
turn the adjustment screw clockwise O to increase
or counterclockwise O to decrease the gas pressure
to the burner. Replace the cover screw. NOTE: The
step opening pressure of this gas valve Is not
adjustable.
4. Check the burner at step pressure, observing burner
ignition and flame characteristics. The burner should
ignite properly and without flashback to the orifice,
and should remain lit. Cycle the burner several
times. Wait 30 seconds between cycles to allow the
Never jumper these terminals. This
Pressure Reeulator AcUustment shorts out valve coil and may burn
/ (Under Cap Screw) Out heat anticipator in thermostat.
Form #43155010