Installation Guide
www.usaprocom.com
200199-01B20
9.  Turn control knob counterclockwise   
to  the  ON  position.  The  main  burner 
should light.
  Note: If burner does not light, push the 
slide switch on the receiver box to the OFF 
position, then back to the ON position.
  Note: Please wait one minute after shut-
ting off replace to allow the control valve 
to reset before starting again.
10. If heater will not operate, follow the instruc-
tions To Turn Off Gas To Appliance, and 
call your service technical or gas supplier.
 CAUTION: Do not try to ad-
just heating levels by using the 
equipment shutoff valve.
 WARNING: If input gas 
type is NG, make sure NG pilot 
burner ignites. If input gas type 
is LP, make sure LP pilot burner 
ignites.
• If  control  knob  does  not  pop  up  when 
released,  contact  a  qualified  service 
technician or gas supplier for repairs.
6.  With  control  knob  pressed  in,  push 
down  and  release  ignitor  button.  This 
will  light  pilot.  The  pilot  is  attached  to 
the  rear  of  the  burner. If  needed,  keep 
pressing  ignitor  button  until  pilot  lights. 
Note: If pilot does not stay lit, refer to 
Troubleshooting, page 25. Also contact a 
qualied service technician or gas supplier 
for repairs. Until repairs are made, light 
pilot with match. To light pilot with match, 
see Manual Lighting Procedure.
7.  Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds, 
release control knob.
  Note: If pilot goes out, repeat steps 3 
through 7. This heater has a safety inter-
lock system. Wait one (1) minute before 
lighting pilot again.
8.  Be sure the slide switch on the front of the 
receiver box is in the ON position.
OPERATION
Shutting Off Heater
Turn  control  knob  clockwise    to  the 
OFF position.
Shutting Off Burner Only (pilot 
stays lit )
Turn  control  knob  clockwise   to  the 
PILOT position.
1.  Follow steps 1 through 7 under Lighting 
Instructions, page 19.
2.  With control knob in PILOT position, strike 
match, and hold near pilot. Press in control 
knob; pilot should light.
3.  Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds, 
release control knob. 
4.  Make sure the heater screen is in place 
before operating heater.
TO TURN OFF GAS TO APPLIANCE
MANUAL LIGHTING PROCEDURE










