Schwank comfortSchwank - Powder STW-JZ - Manual (Page 48)

48
SPW-JZ, STW-JZ(2) / IWP, IW(2) I&O Manual
IM101229
RL: 13A
RD: MAY 2014
MODELS:
SPW-JZ / IWP
STW-JZ / IW
STW-JZ2 / IW2
TURBULATOR
LENGTH
(IF REQUIRED)
200,000 - 70/60/50 ft 10’ (3 m)
175,000 - 70/60/50 ft 10’ (3 m)
150,000 - 60 ft not required
150,000 - 50 ft not required
150,000 - 40 ft 12' (3.66 m)
130,000 - 50 ft not required
130,000 - 40 ft 10' (3 m)
130,000 - 30 ft 14' (4.3 m)
MODELS:
SPW-JZ / IWP
STW-JZ / IW
STW-JZ2 / IW2
TURBULATOR
LENGTH
(IF REQUIRED)
110,000 - 50 ft not required
110,000 - 40 ft 10' (3 m)
110,000 - 30 ft 14' (4.3 m)
80,000 - 40 ft 10’ (3 m)
80,000 - 30 ft 14' (4.3 m)
80,000 - 20 ft 14' (4.3 m)
60,000 - 30 ft 14' (4.3 m)
60,000 - 20 ft 14' (4.3 m)
45,000 - 20 ft 14' (4.3 m)
NOTE: Improper location of a turbulator can cause malfunction of the heater,
property damage, and will void the heater warranty.
Tube Heaters are supplied with all required turbulator(s) factory installed into
the tube(s). Tubes with turbulators are installed at the vent end of the system
configuration and are clearly labeled for easy identification.
28. TURBULATORS:
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.
Installations above 4,000 ft: Restrict the length of any heater to the shortest tube length
available for the input rate.
~ ORIFICE TABLE ON NEXT PAGE ~
29. HIGH ALTITUDE INSTALLATION