Space-Ray PGR 100-L5, Инструкция по установке и эксплуатации, Страница: 27 / 62

Form 43343120
-26- July 2021
11.0) GAS CONNECTIONS AND REGULATIONS
IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER
29.
Connect to the supply tank or manifold in accordance with the latest 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 CSA B149.1, Natural Gas and Propane Installation Code.)
A.
Check that the gas fuel on the burner rating plate matches the fuel for the application.
B. Check that the gas supply piping has the capacity for the total gas consumption of the heaters and any
other equipment connected to the line.
C. Check that the calculated supply pressure with all gas appliances and heaters operating will not drop
below the minimum supply pressure required for these heaters. Check inlet supply pressures on Section
12.0).
D. All gas supply lines must be located in accordance with the required clearances to combustibles from
the heater as listed on the clearances label of the heater and Section 4.0) of this manual.
E. Pipe joint compounds must be resistant to the action of liquefied petroleum gases.
F. Tube heaters will expand/contract during operation. Where local codes do not prohibit, a CSA or U.L.
approved flexible connector supplied with this heater is required for connections between the rigid
piping and the heater. A union should be installed before the burner box inlet. An approved shut off
valve should be installed within 6 feet of the union.
G. The gas pipe, flexible hose and connections must be self-supporting. The gas pipe work must not bear
any of the weight of the heater or any other suspended assembly.
H. 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.
I. 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 slowly. Turn the gas supply pressure on and check for leaks. To
check for leaks, check by one of the methods listed in Appendix D of the National Fuel Gas Code.
J. If a 2nd stage regulator is used, the ball valve down-stream in the supply line must be closed when
purging the gas lines to prevent gas seeping through it. If initial gas pressure is high
er than 14” w.c. 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.
Do not use an open flame of any kind to test for leaks.