Turbulator Length & Location - Schwank STS-JZ Installation & Owner's Manual

TURBULATOR LENGTH & LOCATION IN SYSTEM:
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. See
asterisk notes below table.
GAS MODEL
TYPE Input x Length (ft)
NG or LP 45,000 x 20
NG or LP 60,000 x 20
NG or LP 60,000 x 30
NG or LP 80,000 x 20
NG or LP 80,000 x 30
NG or LP 80,000 x 40
NG ONLY 100,000 x 20
NG or LP 110,000 x 30
NG or LP 110,000 x 40
NG or LP 110,000 x 50
NG or LP 130,000 x 30
NG or LP 130,000 x 40
NG or LP 130,000 x 50
NG or LP 150,000 x 40 *
NG or LP 150,000 x 50 *
NG or LP 150,000 x 60
NG or LP 175,000 x 50/60
NG Only 175,000 x 70
NG Only 200,000 x 50
NG or LP 200,000 x 60/70 **
* 155 Models (150,000 Btuh): 2 ft turbulator is supplied in the Burner Kit and is field installed:

40 ft heater: Insert in end of third tube, prior to the 10 ft turbulator that is factory installed
in the last tube (total 12 ft turbulator)

50 ft heater: Insert in the vent end of the last tube in the system.
** 200,000 x 60 ft & 70': Remove short piece of turbulator from the upstream end of turbulator
TURBULATOR
LENGTH
14' (4.3 m)
14' (4.3 m)
14' (4.3 m)
14' (4.3 m)
14' (4.3 m)
10' (3 m)
8' (2.4 m) S/S
14' (4.3 m)
10' (3 m)
not required
14' (4.3 m)
10' (3 m)
not required
2' (0.6 m) *
+ 10' (3 m)
2' (0.6 m) *
not required
10' (3 m)
10' (3 m)
10' (3 m)
6' (2 m) **
tube, and install turbulator tube as the sixth tube in the system
23
TURBULATOR LOCATION
IN TUBE SYSTEM
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
-
VENT END - FACTORY INSTALLED IN TUBE
VENT END - FACTORY INSTALLED IN TUBE
-
2' FIELD INSTALLED AT END 3RD TUBE
VENT END - 10' FACTORY INSTALLED IN TUBE
2' FIELD INSTALLED AT VENT END
-
VENT END - FACTORY INSTALLED IN TUBE
6th tube = 50 TO 60 ft
VENT END - FACTORY INSTALLED IN TUBE
Remove 4 ft: 6th tube = 50 TO 60 ft
STS-JZ-F / IQ-F I&O Manual
IM101220
RD: MAY 2014
RL: 17A