Specifications

G A S C O M B I T H ER M — I N S TA L L AT I O N M A NU A L #MN-28898
PG. 16
®
COMBITHERM
The Alto-Shaam gas Combitherm has been set to
operate with either natural gas or propane as indicated
on the identification name plate. Make certain the gas
supply matches the nameplate information. Should
conversion to the opposite fuel be desired, conversion
parts must be ordered from the factory. Conversion must
be completed by a qualified service person only. Always
remember to reflect the conversion on the oven's
nameplate. Residential gas connections and hard-piped
gas connections DO NOT meet NSF certifications.
GAS SUPPLY & INSTALLATION REQUIREMENTS
GA S PR E SSU R E CH A RT
The oven has been factory adjusted according
to the gas type specified on the identification
name plate.
TECHNICAL SPECIFICATIONS
N a t u r a l G a s
Min. Connected Pressure 5.5" W.C. 1.12 kPa
Max. Connected Pressure 14.0" W.C. 3.5 kPa
Prop ane Gas
Min. Connected Pressure 9.0" W.C. 1.99 kPa
Max. Connected Pressure 14.0" W.C. 3.5 kPa
I N S TA L L AT I O N R E Q U I R E M E N T S
GAS CONNECTION: 3/4" NPT
CHECK PLUMBING CODES FOR PROPER SUPPLY LINE SIZING TO
ATTAIN MINIMUM BURNER MANIFOLD PRESSURE SHOWN
:
NATURAL GAS: 3.4" W.C.
PROPANE GAS: 5.6" W.C.
On 20•20esG models, the bottom valve should be set all
the way open and the the upper valve should be set to
the appropriate manifold pressure.
MAXIMUM INLET PRESSURE: 14" W.C.
NOTE: If a flexible gas line is used, it must be AGA
approved, commercial type and at least
3
/
4
" I.D.
HOOD INSTALLATION IS REQUIRED
GAS VALVE MAY REQUIRE FIELD ADJUSTMENT ABOVE
3,250' (991m)
AND IS NOT ADJUSTED AT THE FACTORY.
G A S S P E C I F I C AT I O N S
■■
N
ATURAL GAS
■■
P
ROPANE GAS
6•10esG 45,000 Btu/hr. 45,000 Btu/hr.
10•10esG 68,000 Btu/hr. 68,000 Btu/hr.
7•14esG 91,000 Btu/hr. 91,000 Btu/hr.
10•20esG 105,000 Btu/hr. 105,000 Btu/hr.
12•18esG 105,000 Btu/hr. 105,000 Btu/hr.
20•20esG 190,000 Btu/hr. 190,000 Btu/hr.
SPECIFICATIONS
D A N G E R
CONNECTING TO THE WRONG GAS
SUPPLY COULD RESULT IN FIRE OR
AN EXPLOSION CAUSING SEVERE
INJURY AND PROPERTY DAMAGE.
W A R N I N G
TO AVOID SERIOUS PERSONAL
INJURY, installation of this appliance
must conform to local, state, and
national codes; the current edition of
the American National Standard
Z223.1, National Fuel Gas Code, and
all local municipal building codes. In
Canada, installation must be in
accordance with Standard CAN/CSA
B 149.1 and Installation Codes - Gas
Burning Appliances, and local codes.