Space-Ray LRDL15, Инструкции по сборке, установке и эксплуатации

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Form #44201117
-26- Dec 2021
10.0) GAS CONNECTIONS AND REGULATIONS
IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER
a.
Connect to the supply tank or manifold in accordance with state or local building codes. Authorities having
jurisdiction should be consulted before the installation is made.
b.
Check that the gas fuel on the burner rating plate matches the fuel for the application.
c.
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.
d.
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. See Table 12 Below.
Table 12
Gas type
Appliance
Category Nominal Supply
Pressure Maximum
Supply Pressure Minimum Supply
Pressure Setting Pressure
Natural Gas (G20) 2
H
20 mbar 25 mbar 17 mbar 12.5 mbar
LPG (G31) 3
P
37 mbar 45 mbar 30 mbar 25 mbar
e.
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.
f.
Pipe joint compounds must be resistant to the action of liquefied petroleum gases.
g.
Tube heaters will expand/contract during operation. Use an approved flexible connector for connections
between the rigid piping and the heater.
Minimum size to be ½” (12.7mm x 1m long) bore. A union should
be installed before the control box inlet. An approved shut off valve should be installed within 1.8m of the
union.
h.
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.
i.
This appliance is equipped with a step-opening, combination gas valve. The maximum supply pressure to the
appliance is 60 mbar. 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.
j.
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.
k.
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 higher than 60 mbar 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.
l.
High gas pressure regulators need to be installed upstream of flexible gas lines.
m.
The entire gas supply system must be checked for leaks prior to heater operation.