Installing Rotary Valves
Installing Rotary Valves 3
If you purchased a heated valve box (19238A/B, G1580A, or
G1581A), or a side mount kit (G2748A or G2749A), install it
before installing your valve.
To install a valve in a heated valve box, see page 3.
To install a valve on a side mount bracket, see page 8.
Tools needed
Torx T-10 and T-20 drivers
Flat blade screwdriver
Needle-nose pliers
3 mm hex key wrench
Installing a valve in a heated valve box
1 If the detector top cover is installed, remove it.
2 Remove the upper valve box. Remove the two mounting
screws using a T–20 Torx screwdriver and lift off the upper
valve box. Set it aside.
WARNING
Do not install a liquid sampling valve (LSV) in the valve box if you
plan to heat the box above 75°C. Heating an LSV over 75°C can cause
a leak and subsequent explosion. Liquid sampling valves should be
mounted in the side location to avoid potential explosions.
The oven, inlet, detector, and valve box may be very hot. Before
proceeding, turn off the oven and all other heated zones and let them
cool down.
Harmful gases may be present. Hydrogen (if used) can present an
explosion hazard. Before proceeding, turn off all supply gases at
their sources.
Shock hazard. Before proceeding, turn off the GC and disconnect the
power cord.
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