Guspro BB-8416884 - 4.2 System Checks Prior To Start-Up

2017_E_TYPE-HL.doc Page 26 of 55 24-Oct-2017
temperature rise in the process and oxidizer chambers if not regulated. On loads that have a high
combustible content, it may be necessary to program a ramp and soak temperature profile in the
process chamber controller. Special temperature controllers are available to automatically
implement these control strategies.
4.1.3 Oxidizer Chamber
Hydrocarbon vapour, water vapour and hot gases generated in the process chamber are
directed into the thermal oxidizer chamber, which is designed for a total residence time of
between 0.75 - 1 second. The temperature in the oxidizer chamber is maintained between 1400
o
F (760
o
F) - 1600
o
F (870
0
C) by an independent second burner.
Note: As discussed in Section 2.0, the oxidizer chamber temperature is dependent on
regulations set forth by the local air pollution control authority.
Ambient air is drawn via stack induced natural draft through a fresh airport designed to
provide up to 50% excess air into the oxidizer chamber. This mixes with the incoming stream
from the process chamber and oxidation is completed in the oxidizer chamber prior to entering
the stack.
The hot stack gases discharged to the atmosphere consist primarily of excess
oxygen/nitrogen, water vapour and carbon dioxide, which are invisible, odourless and harmless.
This assures compliance with the most stringent North American, U.S. (EPA), European and
regional air pollution standards.
4.2 System Checks Prior To Start-Up
Vibrations from shipping and installation can sometimes cause wires and relays to come
loose. It is recommended that the following steps be performed prior to initial start-up.
1. Before turning on electrical power visually check for loose wires. It is good practice to
snug the wire terminal screws with a screwdriver.
2. Push on all relays to ensure they are plugged into bases properly.
3. Activate the electrical power to the unit.
4. Turn on the power switch located on the panel.
5. Push all reset buttons including burner flame safeties and burner motors. The High
Temperature Safety controller located on all panels has a reset button.