Lennox EL196UHE Series - IV-HEATING SYSTEM SERVICE CHECKS; C.S.A. Certification; Gas Piping; Testing Gas Piping


IV-HEATING SYSTEM SERVICE CHECKS
A-C.S.A. Certication

       -

B-Gas Piping
IMPORTANT

        

       

        

-
-

C-Testing Gas Piping
IMPORTANT
In case emergency shutdown is required, turn o󰀨 the
main shut-o󰀨 valve and disconnect the main power
to unit. These controls should be properly labeled
by the installer.
 



MANUAL MAIN SHUT-OFF
VALVE WILL NOT HOLD
NORMAL TEST PRESSURE
CAP
FURNACE
ISOLATE
GAS VALVE
1/8” N.P. T. PLUGGED TAP
FIGURE 56
       
      




WARNING
Do not use matches, candles, ame or any other
source of ignition to check for gas leaks.
D-Testing Gas Supply Pressure
Gas Flow(Approximate)
TABLE 17
GAS METER CLOCKING CHART
ML193
Unit
Seconds for One Revolution
Natural LP
1 cu ft
Dial
2 cu ft
Dial
1 cu ft
Dial
2 cu ft
Dial
    
    
    
    
  66  

-
         -



         

NOTE - To obtain accurate reading, shut o all other gas
appliances connected to meter.
Supply Pressure Measurement
        


         




-

Manifold Pressure Measurement
         -
-

1 - 

         

 

 
       

 󰀨
 

6 -         
