MT3255 and MT3270
1 --- 3
GAS SPECIFICATIONS
GAS CONNECTIONS
Domestic and General Export installations
The gas line should be large enough to accommo-
date the peak demand of all the gas appliances.
TABLE 2 reflects a straight line, 50 foot run w ith no
coupling restrictions and no other appliances
drawing service. Gas line installations MUST con-
form to National Fuel Gas Code NFPA 54/ANSI
Z223.1 Sec. 1.4 (Latest Edition). TABLE 2 should
be used as a guideline only.
NOTE: For any pipe runs over 50 feet (15 m), con-
sult the factory.
CE approved installations
1. Connect the oven to the gas line with the prop -
er type of gas according to Local and National
Installation Standards. See TABLE 2.
GAS REQUIREMENTS
The firing rat e for the MT3255 and MT3270 is
150,000 BTU/Hr. (43.9 kW/Hr.)
NOTE: For natural gas meter sizing, consult your
local gas company to ensure that your me-
ter will provide the proper supply.
Installations within the U .S.
1. Add the total BTU’s/hr of all the gas
appliances.
2. Convert BTU’s to cubic ft/hr using the formula
Cu Ft/Hr = 1000 BTU/Hr for natural gas.
3. Size the meter accordingly.
Installa tions outside the U.S.
1. Add the total M
3
/min of all the appliances.
2. Size the meter accordingly.
DOMESTIC AND GENERAL EXPORT
Natural Gas Propane Gas
Gas Line Sizing
Single
Double
Triple
3/4” line
1-1/4” line
1-1/4” line
3/4” line
1I line
1-1/4” line
Orifice Size #1 #29
Incoming Gas Pressure W.C. kPa mbar W.C. kPa mbar
Static
Operational
7”
5.5”
1.74
1.36
17.4
13.7
12.5”
11”
3.11
2.73
31.1
27.4
CE APPROVED UNITS
Type o f
Gas
Inlet
Pressure
mbars
Burner Pressure
mbars
Injector
Diameter
mm
Air
Opening
mm
Pilot
Injector
mm
Standard
Delivery
Value kW (H
S
)
G25 25 12 5,80 16 2 x 0,63 46 Nat. Gas
G20 20 8 5,80 16 2 x 0,63 46 Nat. Gas
G20/G25 20/25 Totally Inscrewed
Pressure Regulator
5,15 16 2 x 0,63 46 Nat. Gas
G31 30/37/50 24 3,48 16 2 x 0,30 46 Propane
TABLE 2
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