Crestron electronic 1.5 Manual De Usuario

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Installation & Operation Manual
6  
Gas connections
Connecting gas supply piping
1.  Refer to FIG. 6-1 to pipe gas to the boiler.
 
a.  Install ground joint union for servicing, when 
  
required.   
 
b.  In Canada – When using manual main shutoff 
  
valves, it must be identified by the installer.
Figure 6-1 Gas Supply Piping 
2.  Support piping with hangers, not by the boiler or its 
accessories.
Do not check for gas leaks with an open 
flame – use the bubble test.  Failure to 
use the bubble test or check for gas leaks 
can cause severe personal injury, death, or 
substantial property damage.
3.  Purge all air from the gas supply piping.
4.  Before placing the boiler in operation, check the boiler 
and its gas connection for leaks.
 
a.  The appliance must be disconnected from the gas 
  
supply piping system during any pressure testing of 
  
that system at a test pressure in excess of 1/2 PSIG 
  
(3.5  kPa).
 
b.  The appliance must be isolated from the gas supply 
 
 
piping system by closing a manual shutoff valve 
 
 
during any pressure testing of the gas supply piping 
 
 
system at test pressures equal to or less than 1/2 PSIG 
  (3.5 
kPa).
 
c.  The appliance and its gas connection must be leak 
 
 
tested before placing it in operation.
The gas valve and blower will not support 
the weight of the piping.  Do not attempt 
to support the weight of the piping with 
the boiler or its accessories.  Failure to 
comply could result in severe personal 
injury, death, or substantial property 
damage.
 WARNING
 WARNING
5.  Use pipe sealing compound compatible with propane 
gases.  Apply sparingly only to male threads of the pipe 
joints so that pipe dope does not block gas flow.
GAS SUPPLY
UNION
(FACTORY SUPPLIED)
MANUAL SHUTOFF
VALVE
(FACTORY SUPPLIED)
SEDIMENT TRAP /
DRIP LEG CLEAN OUT
(FACTORY SUPPLIED)
Failure to apply pipe sealing compound as 
detailed in this manual can result in severe 
personal injury, death, or substantial 
property damage.
 WARNING
Model
Gas Inlet Size
FB1500
1 1/2"
FB2000
1 1/2"
FB2500
2"
FB3000
2"
FB3500
2"
Table 6A Gas Inlet Size 
For dual fuel models, reference the Crest 
Dual Fuel Supplemental Manual.
 NOTICE