Superior SDVST-N-B Care And Operation Instructions Manual page 7

Millivolt Models - BTU Input
Millivolt models come standard with the manu-
ally-modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
The BTU Input for millivolt models is shown
in Table 1.
Input (BTU) Manually-Modulated Gas
Valves (millivolt)
Models Fuel Type
Natural or
SDVST
Propane Gas
SDVPF
Table 1
Tables 2 and 3 show the appli-
Gas Pressure
ances' gas pressure requirements.
Inlet Gas Supply Pressure
(all models - millivolt)
Fuel # Minimum
5.0" WC
Natural Gas
(1.24 kPa)
11.0" WC
Propane
(2.74 kPa)
Table 2
Manifold Gas Supply Pressure
(all models - millivolt)
Fuel # Low
Natural (Lo) 2.2" WC (Hi) 3.5" WC
Gas (.55 kPa)
(Lo) 6.3" WC (Hi) 10.0" WC
Propane
(1.57 kPa)
Table 3
Test gauge connections are provided on the
front of the millivolt gas control valve, identified
IN for the inlet and OUT for the manifold side
(see Figure 3 on Page 9).
These appliances must be isolated
from the gas supply piping system (by
closing their individual manual shut-off
valve) during any pressure testing of
the gas supply piping system at test
Input Rate
(BTU / HR)
pressures equal to or less than 1/2 psig
(3.5 kPa).
37,500 high
30,000 low
These appliances and their individual
shut-off valves must be disconnected
from the gas supply piping system dur-
ing any pressure testing of that system
at pressures greater than 1/2 psig (3.5
kPa).
Orifice Sizes - Sea Level to High Altitude
Maximum
(All Models)
10.5" WC
(2.61 kPa)
These appliances are tested and approved for
13.0" WC installation at elevations of 0-4500 feet (0-1372
(3.23 kPa) meters) above sea level using the standard
burner orifice sizes (marked with an "*" in Table
4). For elevations above 4500 feet, contact your
gas supplier or qualified service technician.
Deration - At higher elevations, the amount
of BTU fuel value delivered must be reduced
High
by either:
• Using gas that has been derated by the gas
(.87 kPa)
company.
• Changing the burner orifice to a smaller size
as regulated by the local authorities having
(2.49 kPa)
jurisdiction and by the (USA) National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest
edition or, in Canada, the CAN/CSA-B149.1
codes - latest edition.
Install the appliance according to the regulations
of the local authorities having jurisdiction and,
in the USA, the National Fuel Gas Code NFPA
54 / ANSI Z223.1 - latest edition or, in Canada,
the CAN/CSA-B149.1 - latest edition.
NOTE: Flame appearance will diminish 4% per
thousand feet.
NOTE: Each model has two burners and 2
Orifices.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
Elevation Natural Gas
Feet (meters) drill size (inches)
0-4500 #44 (.086") *
(0-1372) 60J80 •
* Standard size installed at factory
** Standard size in LP conversion kit
Table 4
• Part /Cat. Number
Burn-in Period
During the first few fires of this appliance there
will be some odor due to the curing of the
paint and burning off of lubricants used in the
manufacturing process. Depending on your
use, the burn-in period may take a few hours
or a few days.
KEEP YOUR HOUSE WELL VENTILATED
DURING THE CURING PROCESS. THE ODOR
AND HAZE EMITTED DURING THE CURING
PROCESS CAN BE QUITE NOTICEABLE AND
MAY SET OFF A SMOKE DETECTOR.
If an optional blower is installed, Do Not turn
it on during the Burn-In period.
A white film may develop on the glass front
during the first few fires as part of the curing
process. The glass should be kept clean during
the first two weeks of use to prevent the film from
baking on (making it very difficult to remove).
See Cleaning Glass on Page 10.
Propane
Gas
drill size (inches)
#55 (.052")**
19L52 •
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