Burner & Tube Installation - Schwank STS-JZ Installation & Owner's Manual

18. BURNER AND TUBE INSTALLATION
PRIOR TO PROCEEDING with the tube installation:
"Suspending the System ", and the following section of "IMPORTANT SPECIAL NOTES".
IMPORTANT SPECIAL NOTES: READ FIRST
1. STS-JZ/IQ 100 x 20 ft: Special Tube Coupling - Refer to Section 9.1, Fig 15
2. STS-JZ/IQ 175 & 200: Special Tube Coupling - Refer to Section 9.2, Fig 16
These firing rates have an unpainted titanium alloy stainless steel first tube with a flange
(painted "white"), and an unpainted aluminized steel tube as the second tube; all subsequent
tubes are painted steel. The first tube (titanium alloy stainless steel ) will "glow red" while
heater is in operation - THIS IS A NORMAL CONDITION
3. IF a 90° or 180° elbow is to be installed in the system, refer NOW to Section 8 and the El-
bow Kit installation instructions supplied with the elbow kit
4. TURBULATORS: Also refer to Table 3 & Illustration pages 23 & 24
60,000, & 80,000 Btuh:
30 ft heater: REMOVE 5 ft turbulator from the 2nd tube (aluminized steel) in the system.
•
Steel tube with 8 ft turbulator installs at vent end.
All other turbulators are factory installed inside tube(s) that are clearly labeled with in-
•
struction as to where the tube(s) must be installed
200,000 x 60 ft & 70 ft: Remove short piece of turbulator from the upstream end of the
ALL MODELS: INSTALL THE FIRST AND SECOND TUBES ONLY (FROM BURNER END)
WITH THE WELDED SEAM ALONG THE TUBE LENGTH FACING DOWNWARD
1. All hangers must be:
a) Suspended at the same height = horizontal alignment of
tubes (level)
b) In a straight line = vertical alignment of tubes
c) Spaced 116" (295 cm) apart = correct spacing for reflec-
tor length and attachment to hangers
d) Orient hangers with the "cavity side" facing the burner
end of the system (except the last plate hanger at the
vent end = the cavity side faces the vent)
2. Insert the swaged end of the first tube (tube with flange) through the 4" (10 cm) hole in the
first plate hanger - 1st Tube:
a) Ensure the 'cavity' side of the hanger faces the burner end of the system
b) The distance between the tube flange and first hanger must be 4.5 inches (114 mm)
b) Slide a Torctite tube coupler past the swage onto the tube
The final position of the coupler will be on the 'burner' side of the 2nd hanger
•
c) Guide the tube into the second hanger (webbed) – ensure the cavity side of the hanger
faces the burner end of the system
d) Position first plate hanger 4.5 inches (114 mm) from the tube flange – provides access to
bolt the burner to the flange, and ensures correct spacing of consecutive system hangers
e) Check that the first tube is level
turbulator tube prior to installation (see sheet in Primary tube kit)
Locate welded seam facing downward
33
Read and understand Section 8 -
STS-JZ-F / IQ-F I&O Manual Z83.20-2016
IM101220
RD: APR 2019
RL: 20C