4 RS8FE102, 080R9278 © Danfoss A/S (RA Marketing/MWA), Nov. 08
OPTYMA
TM
Control three-phase Operation and Maintenance Guide
Description
The OPTYMA
TM
Control three-phase is a controller for
refrigeration systems with a three-phase compressor
or for controlling the three-phase evaporating unit
only, for complete cold room management. Front
access to the magnetothermic protection and motor
circuit breaker for the compressor and an innovative
design combine to make it the ideal choice for
effective refrigeration control.
Applications
- Complete management of three-phase refrige-
rating systems up to 7.5 HP static or ventilated,
with off-cycle or electrical defrosting.
Functions and main characteristics
- LED icons to signal plant status.
- Electronic control with wide LED display and easy
to use buttons.
- Display and adjustment of cold room temperature
accurate to 0.1 °C.
- Display of evaporator temperature from para-
meter.
- System control activation/deactivation.
- Alarm signalling: probe errors, minimum and
maximum temperature alarm, compressor protec-
tion (man-in-cold-room alarm in preset models).
- Evaporator fan control.
- Automatic and manual defrost control (static,
heating element).
- Direct or pump-down control of motor compressor
unit (selectable by terminal block connection in
preset models).
- Room light activation, via panel key or door
switch
- Auxiliary relay with activation configurable by
parameter.
- Parameter access with password (4 different
selectable restriction levels).
- General magnetothermic circuit breaker accessible
from the front panel, which cuts the general power
supply.
- Adjustable motor circuit breaker for compressor
protection accessible from the front panel (in
preset models).
General
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