Electronic Panel; Routine Leak Testing; Condenser Fan(S) & Motor(S); Certification & Approval - Emerson Copeland EazyCool ZX Series Manual

It is suggested that the main electromechanical terminations be checked for tightness at least
once every 6 months. The components most likely to be affected by vibrations are the main
terminal strip and compressor contactor.
Most of the control wiring (and terminations) are low voltage connections and should not be
affected in the same way as the heavier electro-mechanical terminations. Most terminations are
of the crimped type and inside plastic plugs. Visual inspection once per half year should be
sufficient for these terminations.
5.4

Electronic panel

This is a fixed PCB (Printed Circuit Board) and other than the terminations mentioned in the
previous section, the panel itself is not a routine maintenance item.
It does have one fuse as protection and the wiring diagram provides a guide to its location on the
board. It is important not to upgrade it from its design 3.5 A rating otherwise the electronic board
will not be protected. If the fuse keeps blowing this is usually an indication that some external (to
electronic panel) and connected device, eg, solenoid valve coil is causing the problem.
It is strongly advisable not to touch any components on the electronic board unless anti-static
finger gloves are used.
NOTE: The electronic board casing must not be removed and the electronic board must
not be tampered with unless absolutely necessary!
5.5

Routine leak testing

All joints within the system should be leak-tested as part of a regular maintenance schedule.
5.6 Condenser fan(s) & motor(s)
A yearly inspection of these items is recommended. Fastenings can come loose, bearings may
wear and fans may require cleaning of solid deposits that can cause rotational imbalance.
Motors come with lifelong lubrication bearings that do not require lubricating on a routine basis,
but just need to be checked for wear.
6 Certification & approval

The piping is in compliance with the Pressure Equipment Directive 97/23/EEC (Art.3§3 -
Sound Engineering Practice).

Components of the condensing units carry a CE mark as far as required and thereby
establish conformity with the relevant directives.

Conformity Declarations for components are available as far as required.

The units are in conformity with the low voltage directive. The applied harmonised standard
is EN 60335-2-891 (Safety Household and Similar Electrical Appliance, Part 1: General
Requirements)

To incorporate these products into a machine the Manufacturer's Declaration of
Incorporation has to be respected.
7 Dismantling & disposal
Removing oil and refrigerant:
Do not disperse in the environment.
Use the correct equipment and method of removal.
Dispose of oil and refrigerant properly.
Dispose of unit properly.
22 C6.1.6/1108-0509/E