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Installation, Operation & Maintenance Manual (IOPCKKS60220510B1)
UNIT FLASH CODES
Various flash codes are utilized by the unit control board (UCB) to
aid in troubleshooting. Flash codes are distinguished by the short
on and off cycle used (approximately 200 ms on and 200 ms off). To
show normal operation, the control board flashes a 1 second on, 1
second off heartbeat during normal operation. This is to verify that
the UCB is functioning correctly. Do not confuse this with an error
flash code. To prevent confusion, a 1-flash, flash code is not used.
Current alarms are flashed on the UCB LED. Pressing and releasing
the ALARMS button on the UCB can check the alarm history.
The UCB will cycle through the last five (5) alarms, most recent
to oldest, separating each alarm flash code by approximately 2
seconds. In some cases, it may be necessary to “zero” the ASCD
for the compressors in order to perform troubleshooting. To reset
all ASCDs for one cycle, press and release the UCB TEST button
once. See table 10, Unit Flash Codes.
1: These flash codes do not represent alarms
TABLE 10: UNIT FLASH CODES
MAINTENANCE
The Saber Packaged Air Conditioners are premium quality
machines with very low maintenance requirements. Compressors
used in Saber Packaged Units are of Scroll type and are charged
with the correct amount of refrigerant and lubricating oil. Unless
there is a leak in the system, no topping up is generally required.
Standard DMS Saber Models except 16TR models (DMS 190) need
lubrication every 12 months.
EVERY MONTH
t Remove the filters and blow compressed air over them to get
rid of loose dust. Visually inspect the filter conditions, replace
them with new ones of same sizes if required.
t Saber Packaged Air Conditioners are provided with a specially
designed drain pan, for proper maintenance check and clean
blockages at drain connections if any.
EVERY 3 MONTHS
In addition to the monthly maintenance above, check the belt
tension of evaporator fan. A correct tension is indicated when
the belt has a relaxation of approximately 10 mm to 13 mm when
pressed lightly with a finger.
EVERY SIX MONTHS
In addition to the maintenance done every three months :
t The condenser coils should be cleaned by spraying water
over it at low pressure or with a brush while ensuring that the
fins are not damaged.
t Check all electrical connections and tighten them if required.
t Clean all accessible electrical panels of dirt and dust. Before
cleaning the control panels, ENSURE that the electrical power
to the unit is switched off.
EVERY 12 MONTHS
In addition to the maintenance done every six months :
t Use a proper cleaning cloth to clean fan blades and motors.
t Ensure that the unit is working properly by checking, current,
voltages, pressures and temperatures.
t Check the earthing or grounding of the unit.
t Check the exterior of the unit for any signs of corrosion. Even
though it is highly unlikely, if any corrosion that is seen, should
be removed by proper sanding the surface. Repaint the unit
with proper touch up paint, availablefrom York.
t Check the unit for any unusual vibrations or noise, locate the
cause and rectify it by changing mounts, base.