Carrier 58GSC - Manual (Page 4)

c. Measure adjusted gas input rate using method out­
lined in step 8.
d. Replace regulator adjustment screw seal cap.
10. Inspect burner and pilot flame. The main burner flame
should be clear blue, almost transparent. The pilot
flame should be soft blue in color and it must provide
good impingement on the pilot-sensing element. The
flame should extend above the burner carryover port to
provide proper burner ignition. See Figs. 2 and 3. When
the pilot flame requires adjustment:
a. Locate adjustment screw marked PILOT ADJ on
top of gas valve. See Figs. 4 and 5.
b. Remove cap and turn adjustment screw clockwise
to decrease pilot gas flow. Turn screw counter­
clockwise to increase pilot gas flow.
c. When proper adjustment is obtained, replace screw
cap.
11. Turn furnace gas valve control knob to OFF.
12. Remove manometer and replace manifold pressure tap
plug.
13. Turn furnace gas valve control knob to ON.
14. With main burners ignited, check pressure tap plugs
for gas leaks.
E. Check Lockout Timer Module (LOD) Operation
1. Turn off electrical supply.
2. With furnace off, remove wire from terminal No. 5 of
gas valve.
3. Set room thermostat to “call for heat.”
4. Turn on electrical supply.
5. Let pilot spark until lockout timer breaks spark genera­
tor circuit (approximately 5 minutes).
6. Replace wire on terminal No. 5 of gas valve.
' 7. Electrically reset lockout timer by setting room ther­
mostat below room temperature for approximately 30
seconds.
8. Sign and date conversion label P/N 310167-312 pro­
vided in kit, and attach to outside of blower compart­
ment door.
9. Replace control access door.
10. Reset room thermostat to desired temperature.
During normal operation, if the pilot flame is not proven
within approximately 5 minutes, the lockout timer opens,
deenergiziug the gas valve, and stopping the gas flow to the
pUot. The lockout timer will remain open until it is electri­
cally reset.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations.
B°°k| 1
I
4 PC 101 Catalog No. 565-817 Printed in U.S.A. Form 58D,G-2SI Pg 4 11-88 Replaces: 58SSB-4SI
Tab I6al8a