REGULATOR
REGULATOR
_ADJUSTMENT
SCREW
INLET
PRESSURE TAP
REGULATOR SPRING
(PROPANE - WHITE. 6 TURNS
NATU RAL - SILVER, 10 TURNS)
GASPRESSURE
ADJUSTMENT
A03142
Fig. 50--Redundant Automatic Gas Valve
BURNER J
ORIFICE
Fig. 51--Burner Orifice
BURNER FLAME
A93059
BURNER
TERMINALS WITH
THERMOSTAT REMOVED
VOLT/AMMETER
10TURNS
FROM UNIT 24-VOLT
TERMINAL BLOCK
EXAMPLE: 5.0 AMPS ON AMMETER = 0.5 AMPS FOR THERMOSTAT SETTING
10 TURNS AROUND JAWS
A80201
Fig. 53--Amp Draw Check with Ammeter
Table 11--Altitude Derate Multiplier for U.S.A.
ALTITUDE % OF DERATE MULTmPUER
{FT) DERATE FACTOR
0--2000 0 1.00
2001--3000 4--6 0.95
3001--4000 6--8 0.93
4001--5000 8--10 0.91
5001--G000 10--12 0.89
6001--7000 12--14 0.87
7001 --8000 14--16 0.85
8001 --9000 16--18 0.83
9001--10,000 18--20 0.81
* Derate multiplier factor Jsbased on midpoint altitude for altitude range.
b. Reinstall burner box cover.
c. Gas valve regulator seal cap MUST be on.
d Turn off all other gas appliances and pilots.
e Start furnace and let operate for 3 minutes
£ Measure time (in sec) fbr gas meter test dial to complete 1
revolution
g Refer to Table 12 for cu ft of gas per hr
h Multiply gas rate (cu ftihr) X heating value (Btuicu ft)
using natural gas heating value from local gas
utility/supplier.
MANIFOLD
A89020
Fig. 52--Burner Flame
CANADA
At installation altitudes from 2001 to 4500 f_, this furnace
must be derated 5% by an authorized Gas (onversion
Station or Dealer To detem_ine correct input rate for
altitude., see example above and use 0.95 as derate multi°
plier factor.
45
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