Schwank S100 - Turbulator Length and Location - U- Tube

50
S100-F / ITB-F I&O Manual
IM101230
RD: JAN 2014
RL: 9A
When this appliance is installed above the altitude stipulated below, the input must be de-rated
by 4% for each 1000 ft . If your local utility supplies gas with a de-rated heat content, no
orifice change is required in the heater . Check with your local utility regarding de-rating.
USA: The factory installed orifice for this appliance is approved for altitudes zero to
2000 feet above sea level. Above 2000 feet, refer to table below.
Canada: The factory installed orifice for this appliance is approved for altitudes zero to
4500 feet above sea level. When installed above 4500 feet, refer to the table below.
~ ORIFICE TABLE NEXT PAGE ~
26. HIGH ALTITUDE INSTALLATION
NG or LP S100 / ITB 130-15U 14' (4.3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 130-20U 10' (3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 155-20U * 2' (0.6 m)
FIELD INSTALLED AT END 3RD TUBE
+ 10' (3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 155-30U not required -
NG or LP S100 / ITB 175-30U 10’ (3 m) VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 200-30U 10’ (3 m)
VENT END - FACTORY INSTALLED IN TUBE
GAS
TYPE
MODEL
TURBULATOR
LENGTH
TURBULATOR LOCATION
IN TUBE SYSTEM
NG or LP S100 / ITB 60-10U 14' (4.3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 80-10U 14' (4.3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 80-15U 14' (4.3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 110-15U 14' (4.3 m)
VENT END - FACTORY INSTALLED IN TUBE
NG or LP S100 / ITB 110-20U 10' (3 m)
VENT END - FACTORY INSTALLED IN TUBE
NOTE: Improper location of a turbulator can cause malfunction of the heater,
property damage, and will void the heater warranty.
Tube Kits are supplied with 4 ft & 10 ft turbulator(s) factory installed into the
tube(s). Tubes with turbulators are clearly labeled for easy identification. The
155-20U model requires a 2 ft turbulator be installed in the field (see * below).
25B. TURBULATOR LENGTH & LOCATION IN SYSTEM: S100U / ITBU - ’U’- Tube
* 155 Models (150,000 Btuh): 2 ft turbulator is supplied in the Burner Kit and is field installed:
 20 ft U heater: Insert in end of third tube in system (1st tube after turn box), prior to the
10 ft turbulator that is factory installed in the last tube (total 12 ft turbulator)
 30 ft U heater: Discard 2 ft turbulator - not required.