14
AGL_Unit_ZX_Small_E_Rev03
3.3.4
Main fuses
WARNING
Main switch "On"! Danger of electric shock!
Before changing the fuses,
turn the isolating switch off to de-energize the unit.
Circuit
Fuse size
Fuse range
Ident number
Control circuit
Fuse 5 x 20
3.15 A
3233538
Main power supply
Fuse 10 x 38
12 A
3200810
Table 12: Main fuses sizes and ranges
3.4 Location & fixings
IMPORTANT
Dust and dirt contamination! Unit lifetime reduction!
The unit should
always be installed in a location where clean airflow is ensured. External
fouling of the condenser fins leads to high condensing temperatures and will
reduce the lifetime of the unit.
It is required to maintain a clearance of 300 mm between the wall (or the next unit) and the unit left
and rear panels while a clearance of 500 mm must be maintained from the unit right, top and front
panels (seen facing the front of the unit)
– see
Figure 12
hereunder. Both service access and
airflow have been considered in making these recommendations.
Figure 12: Distances required for unit installation (in mm)
Where multiple units are to be installed in the same location, the contractor needs to consider each
individual case carefully. There can be many variations of unit quantities and available space and it
is not the intention of this manual to go over these. However, as a rule, air by-pass around each
condenser and between the units should always be avoided.
Ideally, the unit should be mounted level on a solid concrete slab with anti-vibration pads between
unit feet and concrete. However, the ZX Small refrigeration unit has also been designed for wall
mounting on suitable brackets. In this case it is equally important that the dimensional guidelines
given above are followed and that additional consideration is given for possible air recycling if units
are installed one above the other. Wall mounting brackets are not part of the standard delivery.
Another factor to consider in finding a good installation site is the direction of the prevailing wind.
For example, if the air leaving the condenser faces the prevailing wind, the airflow through the
condenser can be impeded, causing high condensing temperatures and ultimately resulting in
reducing the unit lifetime. A baffle is a remedy for this situation.
