16
JCB
409ZX Loader
GENERAL GUIDE
General Guide to Cabin Sealing, Testing, and Commissioning of BreatheSafe variable speed Pressurisation Units
(Clean Cabin with HEPA vacuum)
1
Inspect the cabin and ensure all cover panels are in place and any cabin pressure leaks are sealed with grommets, sealer, fit new door seals for used equipment, etc
2
Sitting inside the cabin with the door open, turn on the ignition to power up the unit.
3
The pressuriser fan should power up to full speed, and the monitor should indicate 0 Pa pressure (Allow ± 2 pascals wind gusts).
4
With the ignition on, close all doors and windows. If the cabin is adequately sealed, the monitor should indicate 50 Pa (Pascals), set pressure or whichever pre-set
has been chosen. (If not achieved, check for cabin pressure leaks).
5
Once a cabin pressure of 50 Pa is confirmed. Go to the setting menu, select
“System Check.”
The display will indicate
“System
Test - Max
Fan”
on the screen while
showing the maximum cabin pressure.
6
The MAX cabin pressure should be above 250 Pascals related to the efficiency of cabin seals (Please note the minimum result for warranty compliance is 250
pascals tested with a new 500000 HEPA filter). Therefore, a cabin pressure result of 300 to 500 pascals is the ideal result.
7
If the above pressure is not achieved, leave the unit at full speed and investigate external leaks outside the cabin: e.g., A/C outlets, drains, window & door seals,
locks & hinges, etc.
8
If necessary, with the ignition on, controller on
‘MAX
FAN
SPEED,’
A/C blower OFF & all doors & windows closed, set off a smoke emitter inside the cabin (SWP
attached).
9
Locate any air leaks around the cabin and re-test. If silicone sealant or similar is used, allow it to dry before re-testing, as even slamming the door could push the
seal back out.
10
Continue the sealing and testing procedure as above until a satisfactory outcome is achieved. Fill out the record below and attach photo evidence of maximum
pressure result and NANOZEN Real-time Dust Monitoring result to register for warranty
