Reznor RPBL Unit Installation Manual - Manual (Page 52)

Form I-SSCBL/RPBL, Page 52
8.11 Burner Air
Shutters
Size
Burner Orifices (sea level) Propane
Carryover Orifice Qty per
Furnace
Natural Gas Propane
Drill Size P/N Drill Size P/N Drill Size P/N
500 12 #44 11833 #55 11830 #59 10370
600 12 #42 84437 1.45 mm 61652 #59 10370
700, 1050 14 #42 84437 1.45 mm 61652 #56 9791
400, 800, 1200 16 #42 84437 1.45 mm 61652 #56 9791
Air shutters are required on propane
units, optional on natural units. A slot-
ted screw on the end of the manifold
bracket moves air shutters and adjusts
all burners simultaneously (See FIG-
URE 56.) Turning the screw clockwise
opens the air shutter; counterclock-
wise closes shutter.
After the furnace has been in opera-
tion for 15 minutes, close air shut-
ter until the flame turns yellow. Open
shutter until yellow disappears.
Burner Air Shutter
Adjustment Screw
FIGURE 56 -
Propane Burner
Rack Showing
Burner Air Shutter
Adjustment Screw
DANGER
Failure to adjust air
shutters according
to directions could
cause property
damage, personal
injury, and or death.
9.0 Check
Installation
and Start-Up
9.1 Check the installation prior to start-up:
 Verify suspension/mounting methods and clearances. See Paragraphs 4.0 & 5.0.
 Check the duct connection. See Paragraph 6.4.
 Check venting. See Paragraph 6.2. Be sure that flue discharge and combustion air
openings are free of obstructions. Be sure electrical entrance and gas supply pipe
openings are sealed.
Electrical Checks:
 Be certain the electrical supply matches voltage rating of the furnace. (Refer to the
rating plate.)
 Check all field wiring against the wiring diagram. Be sure that wire gauges are as
required for the electrical load.
 Check that fuses or circuit breakers are in place and sized correctly.
 Option AG41 or AG42 - set the heat stage controllers. See Paragraph 8.7.4.
Gas Supply Checks:.
 Check piping for leaks and proper gas line pressure. Bleed gas lines of trapped air.
See Paragraph 6.1.
a) Turn manual shutoff valve to off position.
b) Turn gas supply on.
c) Observe gas meter for movement, or
d) Attach pressure gauge readable to .1" w.c. and after turning gas on for ten
seconds, turn gas supply off. No change in pressure should occur over a three-
minute period.
e) If either c) or d) above indicate a leak, locate leak by brushing a soapy solution
on all fittings. Bubbles will appear at a leak. Repair and repeat tests.
Blower Checks:
 Check blower pulley and motor pulley to be sure they are secure to the shafts.
Check belt tension and alignment. Check blower rotation. See Paragraph 6.5.
 With optional dampers - Check damper linkage. See Paragraph 6.3.3.
8.0 Controls
(cont'd)
8.10 Burners,
Orifices, and
Carryover
System
(cont'd)
All propane gas burners are equipped with one flash carryover and a regulated gas
lighter tube system. The carryover lighter tube receives its gas supply through a regula-
tor, simultaneously with the gas to the burner orifices.
During regular service, check the main burner ports, the carryover assemblies, and the
orifices for cleanliness.
Burner Orifices - Heaters are shipped with orifices of proper size and type for gas
specified. NOTE: Natural gas units do not require a carryover orifice.