©
B
R
E
A
T
H
E
S
A
F
E
2
0
1
9
www.breathe-safe.com.au
Page
19
Issue date:
Controlled document:
Revision:
WA900-3EO
COMPONENT MAINTENANCE
4. FAN BLADES
Check the fan blades for wear or damage. Check that blades are
tight on motor shaft.
Any damaged/worn blades should be replaced - DO NOT repair.
5.FRESHAIR FILTER (Pressuriser)
The fresh air pressurising lter is located inside the lter housing of
the pressuriser unit. The fresh air ltration system is comprised of a
pre-cleaner plus a lter element.
Both of these items should be checked at regular intervals for signs
of damage or deterioration. To service fresh air ltration systems
proceed as follows -
1. Remove pre-cleaner bowl (if tted) from top of lter housing.
Clean out accumulated dust and ret bowl.
Note: Take care not to over-tighten knurled knob on top
of pre-cleaner bowl cover.
2. Unclip or unscrew the lter housing and remove the cover.
3. Remove and clean the lter element by gently tapping on a
rm surface - DO NOT wash.
4. Check the rubber seals at the base of the lter element for
damage or deterioration.
5. Remove accumulated dust from lter housing.
6. Ret the lter element, ensuring that it seats correctly and
replace cover.
6. RECEIVER DRIER / INLINE DRIER
This is a fully sealed, non-serviceable component which should be
renewed whenever the refrigerant system is ‘opened’. After renewal
of the receiver drier the system must be evacuated and recharged.
The drier is isolated to minimise gas loss on replacement.
To remove:
1. Shut o line valve at condenser coil outlet
2. Run compressor and pump down liquid line.
3. Shut o line valve upstream of drier.
4. Remove and replace.
Note: Ensure both line valves are reopened once drier is
replaced. An access port is provided to evacuate this
section prior to re-opening.
7. PRESSURE CONTROL SWITCH
This is a fully sealed, pre-set, non-serviceable component.
It should be noted that this is tted on Schraeder valves and can be
replaced without loss of gas.
8. ELECTRONIC THERMOSTAT
This item is fully sealed and a non-serviceable item.
Please refer to FAULT DIAGNOSIS section to ensure correct
operation if required.
OPERATING INSTRUCTIONS
To Next Page
Loading...
Need help?
General
