ABB Totalflow NGC8206 Startup Manual page 7

Position the vent tubing in a downward direction so that moisture
does not accumulate in the tubing. Units mounted inside a
building may require vents to be extended outside.
IMPORTANT: Remove plastic caps from the ends of the purge coil on
any sample conditioning module(s).
6B Connect carrier (CAR) and calibration gas (S4, default) to the
feed-through assembly. Purge gas through the tubing during
connection.
NOTE: If using pressure regulators that include a built-in low pressure
switch, these can be connected to digital inputs on the NGC.
However, to meet the Division 1 certification, the user must go
through a barrier located in a safe area. If used, the carrier bottle
connects to digital input 1 (DI1) and the calibration blend bottle to
digital input 2 (DI2). See the termination board drawing on page
15.
Step 7 Set Carrier Regulator to 90 PSIG , Cal. Blend and Sample
Probe Regulators to 15 PSIG and Open Valves
Step 8 Check for Leaks
Leaks in the carrier, sample or calibration gas lines will produce
unsatisfactory results from the unit.
8A Close tank valves, and
monitor the gauges on the
regulator. If pressure
drops, a leak is present.
8B Locate and repair all
leaks.
8C Continue until all leaks
have been corrected and regulator gauges maintain pressure.
8D Leave sample, carrier and calibration gas valves open.
Step 9 Install Power Supply
Install the power source, and complete all power wiring before
continuing. Reference any power wiring drawings supplied with the unit
plus any corresponding instructions in the Installation chapter of the
NGC8206 User's Manual.
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