Emerson 36J55 Manuel D’Utilisation

6

Regulator Cover Screw

Regulator

Cover Screw

Plastic

Adjust Screw

Regulator

Spring

Plastic Adjust Screw

Regulator Spring

 

These controls are shipped from the factory set 
for Natural Gas with the regulator set as specified 
on the control label. Consult the appliance rating 
plate to ensure burner manifold pressure is as 
specified. If another outlet pressure is required, 
follow these steps. For LP gas conversion, use LP 
conversion kit.

Single Stage Models – Outlet pressure will be 
factory-adjusted in the 

2.5" to 5" range. The valve 

cannot be adjusted outside this range.
Two-Stage Models: Low outlet pressure will be 
factory-  adjusted in the 

1 to 4" W.C. range and 

high outlet pressure will also be factory-adjusted 
in the 

2 to 5" W.C. range.  

The valve cannot be adjusted outside this range 
and the high outlet pressure setting must always 
be set at least 

1" above the low outlet pressure 

setting.

1.  Turn off all electrical power to the system.

2.  Back outlet pressure test screw out one turn,  

counterclockwise, not more than one turn. 
(see fig. 

8)

3.  Attach a hose and manometer to the outlet 

pressure boss of the valve.

4.  Turn on system power. Set thermostat to call 

for heat (low stage for two-stage systems). 
Main burner should light. Proceed to step 

7 for 

single stage systems.

5. (2-stage only) Remove regulator cover screw 

from the low outlet pressure regulator adjust 
tower (fig. 

8) and turn screw clockwise  

(

) to increase pressure, or counterclock-

wise (

) to decrease pressure. Always 

adjust regulator according to original equip-
ment manufacturer's specifications listed on 
the appliance rating plate. Replace regulator 
cover screw.

6. (2-stage only) Set thermostat to call for high 

stage.

7.  Remove regulator cover screw from the single 

stage or high outlet pressure regulator adjust 
tower (fig. 

8) and turn screw clockwise  

(

) to increase pressure, or counterclock-

wise (

) to decrease pressure. Always 

adjust regulator according to original equip-
ment manufacturer's specifications listed on 
the appliance rating plate. Replace regulator 
cover screw.

8.  Turn off all electrical power to the system.

9.  Remove manometer hose and turn outlet 

pressure test screw in to seal pressure port 
(clockwise, 

7 in-lb minimum).

10. Turn on electrical power to the system.

11. Turn on system power and energize valve.

12. Using a leak detection solution or soap suds, 

check for leaks at pressure boss screw. Bubbles 
forming indicate a leak. SHUT OFF GAS AND 
FIX ALL LEAKS IMMEDIATELY.