Airwell K CassetteSeries, Руководство по обслуживанию и установке

Страница: 13 / 36

REGULAR MAINTENANCE
These units have been designed for minimum maintenance
through the use of permanently lubricated components.
However, there are operational maintenance requirements that
require regular attention to ensure optimum performance.
Maintenance must be performed by appropriately experienced
personnel.
WARNING: Isolate unit from power supply before working on
unit.
1. REMOVAL OF PANELS
All access panels are removable by unscrewing the self-
tapping retaining screws.
2. FILTER CLEANING
The Filters should be washed in warm soapy water at
regular intervals, as required by the application and the
environment of the installation. The electrostatic and
carbon activated filters should be replaced as required.
2.1 Filter Cleaning – Ducted Units
The filters are provided and fitted by the installer and
consequently specifications will vary with personal
preference. For normal air conditioning duty the
common filter is either a 25 mm or 50 mm thick
permanent type which may be cleaned with the aid of
a vacuum cleaner then washed in a weak solution of
detergent and warm water. However, the installer’s
recommendation should be sought to ascertain the
method and frequency of cleaning best suited to the
type used and the needs of the particular installation.
3. FAN DRIVE SYSTEM (Indoor)
Fan shaft and motor bearings are of permanently
lubricated, sealed type and require no regular
maintenance other than a check on their general condition.
4. OUTDOOR COIL
The coil surface will become laden with dust and may be
blocked by leaves or papers over a period of time. The
surface should be inspected periodically and cleaned
down by hosing or steam cleaning as required.
5. ELECTRICAL
The contact surfaces of relays and contactors should be
inspected regularly by an electrician and replaced as
judged necessary. On these occasions the control box
should be blown out with compressed air to remove any
accumulation of dust or other contaminants.
6. REFRIGERATION
The refrigeration system is hermetically sealed and should
require no regular maintenance. However, it is
recommended that the system be leak tested and the
general operating and control systems be checked on a
regular basis. The operating pressures should be checked
particularly at these times as they are an excellent guide to
other areas of the system in need of maintenance.
7. MAINTENANCE CHECK LIST
7.1 Electrical
Check
(a) Clean down external panels.
(b) Remove panels.
(c) Check insulation for damage or deterioration
and repair as necessary.
7.2 Condensate Drain Check
(a) Check drain ports and piping are clear.
(b) Clean out accumulated dirt.
(c) Check for signs of rusting.
7.3 Refrigeration System
(a) Gas leak check.
(b) Check pipes or capillaries rubbing or vibrating.
(c) Check compressor for unusual noise or
vibration.
(d) Check discharge temperature.
(e) Test refrigerant charge using Suction
superheat method.
7.4 Outdoor Coil
(a) Clean fin surfaces as required.
(b) Note condition of fans and motors.
7.5 Indoor Section
(a) Check fin surface is clean.
(b) Clean
filters.
(c) Check condition of fan and fan motor.
(d) Check fan bearings for signs of wear.
7.6 Electrical
(a) Check fuse rating and condition.
(b) Check for loose terminal screws.
(c) Generally check for loose wiring.
7.7 Replace panels, replacing any missing screws.
Page 11