MN-35947       
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       Rev 15       
•
       01/18       
•
       Combitherm® CT PROformance™ and CT Classic Series Installation Manual        
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       47
Installation
Item Part Description Qty.
1 1012504 PLATE, RESTRICTOR COMBI, 20mm, 10-20 G30, 20-20 G30 1
2 1012817 PLATE, RESTRICTOR COMBI, 25mm, 7-20 G25 1
3 1013843 PLATE, RESTRICTOR COMBI, 14mm, 6-10 1
4 1013844 PLATE, RESTRICTOR COMBI, 21mm, 10-20 G25, 20-20 G25 1
5 1013845 PLATE, RESTRICTOR COMBI, 22mm, 10-20 G20, 10-20 G31, 20-20 G20, 20-20 G31 1
6 1014619 PLATE, RESTRICTOR COMBI, 17mm, 10-10 G31, 10-10 G30, 20-10 G31, 20-10 G30 1
7 1015074 PLATE, RESTRICTOR COMBI, 18mm, 10-10 G20, 10-10 G25, 20-10 G20, 20-10 G25 1
8 1015075 PLATE, RESTRICTOR COMBI, 23mm, 7-20 G31 1
9 1015076 PLATE, RESTRICTOR COMBI, 24mm, 7-20 G20, 7-20 G30 1
Item Part Description Qty.
1 OR-35874 ORIFICE, GAS VALVE DISC 4.60mm, 6-10 G25, 10-20 G31, 20-20 G31 1
2 OR-35876 ORIFICE, GAS VALVE DISC 2.60mm, 6-10 G30 1
3 OR-35877 ORIFICE, GAS VALVE DISC 4.00mm, 10-10 G30, 20-10 G30, 7-20 G30 1
4 OR-35878 ORIFICE, GAS VALVE DISC 4.10mm, 10-10 G31, 20-10 G31, 10-20 G30, 20-20 G30 1
5 OR-35943 ORIFICE, GAS VALVE DISC 5.70mm, 10-10 G20, 20-10 G20, 10-20 G20, 20-20 G20 1
6 OR-36006 ORIFICE, GAS VALVE DISC 6.30mm, 7-20 G25 1
7 OR-36007 ORIFICE, GAS VALVE DISC 6.00mm, 10-10 G25, 20-10 G25 1
8 OR-36207 ORIFICE, GAS VALVE DISC 6.40mm, 10-20 G25, 20-20 G25 1
9 OR-36625 ORIFICE, GAS VALVE DISC 3.75mm, 6-10 G20 1
10 OR-36626 ORIFICE, GAS VALVE DISC 2.75mm, 6-10 G31 1
11 OR-36627 ORIFICE, GAS VALVE DISC 5.55mm, 7-20 G20 1
12 OR-36628 ORIFICE, GAS VALVE DISC 4.20mm, 7-20 G31 1
NOTE:  Natural Gas = G20
  Propane = G31
  Butane = G30
  Low Calorifi c Natural Gas = G25
 
Electric shock hazard.
Perform lockout/tagout procedures before 
cleaning or servicing this appliance.
INSTALLATION REQUIREMENTS
GAS CONNECTION: 3/4" NPT 
For Europe, gas connection thread fittings should conform to  
EN ISO 228-1, or ISO 7-1, or shall have a compression fitting.
If the appliance has casters, a restraint system must be 
installed. See section 
Mobile Equipment Restraint
, page 53.
NOTE:
If a flexible gas line is used, it must be AGA 
approved, commercial type and at least 3/4" I.D. or 
comply to European Standard EN203.
HOOD INSTALLATION IS REQUIRED
After installation, burner and gas valve should be checked and 
adjusted by a qualified and trained Alto-Shaam technician for 
proper operation and validate CO2 levels. GAS VALVE MAY 
REQUIRE FIELD ADJUSTMENT ABOVE 2,000' (610m) AND IS 
NOT ADJUSTED AT THE FACTORY.
GAS SUPPLY AND INSTALLATION
WARNING
Improper installation, adjustment of burner 
pressures, alteration, service, maintenance, 
or use can cause carbon monoxide 
poisoning, explosion, fire, electrical shock, 
or other conditions which may cause 
SERIOUS INJURY, DEATH or PROPERTY 
DAMAGE. Consult a qualified and trained 
installer, service agency, local gas supplier, 
or your distributor for information or 
assistance. The qualifiedand trained 
installer or agencymust use only factory-
authorized and listed kits or accessories 
when modifying thisappliance.
GAS TRAIN - 
RESTRICTOR PLATE
GAS TRAIN - ORIFICE
When converting gas units to either propane 
or natural gas you will need to provide the 
corresponding orice and restrictor plate, 
and new serial data tags, part numbers: 
LA-26348 and LA-26349