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9.2 Multiburner System Design Requirements
A CTHN multiburner system has a number of radiant
tube sections interconnected by manifold tube to a
pump to form a complete system. Reflectors can be
used over the manifold tube but are not required.
The system design parameters are such that the
manifold sections are not subjected to condensate
when the system is fully heated up. It is required that
heat-treated aluminized or coated tubing is used for
the manifold to increase system life and to handle
initial condensation during start-up. Damper
couplings may be necessary to balance system
vacuum.
Design requirements for a CTHN multiburner system
are summarized on Page 30, Table 10.
FIGURE 18: Typical CTHN Multiburner System Installation
SECTION 9: M
CTHN multiburner heaters are typically shipped as
burner packages and tube and accessory packages.
The tube and accessory packages contain enough
tube, reflector and hanging parts for the radiant
section of one CTHN heater. Elbows, tees, manifold
tube, pumps, controls, damper couplings and any
other parts used beyond the burner, radiant tube and
reflector must be purchased separately. See Figure
18 for a general overview of a simple CTHN
multiburner system. Depending on system
requirements, CTHN multiburner systems may be
controlled by either a ROBERTS GORDON
Control (shown) or by a relay system.
H
I
ULTIBURNER
EATER
NSTALLATION
®
System
29
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