Technical Manual Stage Controller MSR
eco
3140
Page 10
CONNECTION INFORMATION & SAFETY INSTRUCTIONS
Product warranty does not cover damage caused by failure
to comply with these operating instructions! Nor will ELREHA
be held liable for any personal injury or damage to property
caused by improper handling or failure to observe the savety
instructions and recommendations contained in this or any
other ELREHA supplied document related to this product!
This manual contains additional safety instructions throughout
the functional description. Please pay close attention to these
instruction!
TO AVOID RISK TO HEALTH OR POSSIBLE LOSS OF
LIFE, DO NOT OPERATE IF:
• The device has visible damage or doesn't work
• After a long storage period under unfavourable conditions
• The device is heavily soiled or wet
• When shipped under inadequate conditions
• Never use this product in equipment or systems that are
intended to be used in applications or under circumstances
that may affect human life. For applications requiring
extremely high reliability, please contact the manufacturer
before use.
•
This product may only be used in the applications
described on page 1.
• Electrical installation and placement into service
must be performed by qualified personnel only.
•
To avoid the risk of Electrical Shock, all ‘PE’ terminals
must be connected to ground. Without adequately
grounding the unit, the internal noise filter will not work,
which can cause faulty readings, or inaccurate displayed
values to occur.
• To prevent electrical shock, the device may only be
operated in a closed control cabinet or control box.
• Be sure to observe all local, state, or federal safety
regulations in the location that the unit is installed.
• Before installation, verify that the control specifications
suit the application details. Damage may occur to the
device when operated if the aforementioned conditions
are not within the device specifications.
Examples:
- Supply voltage (printed on the type label).
- Environmental limits for temperature/humidity.
- Maximum current rating for the relays.
• Sensor/probe cables must be shielded. Don’t install them
in parallel to high-current cables. Shielding must be
connected to PE at the end close to the controller.
If not, inductive interferences may occur.
• Note related to wire lenghts connected to the device:
Wire should be 0,5mm² at a minimum.
• Mounting the device in close proximity to power relays
is NOT recommended. Strong electro-magnetic
interference may cause the device to malfunction!
• All line interface wiring must meet the specified
requirements.
• All temperature sensors connected to the device must be
of the same type. The use of inconsistent sensor types
will cause the unit not function properly.
• Type TF sensors are not designed for long term immersion
in liquids. Any sensors of this type that are intended to be
immersed in any liquid environment should use a dip fitting
or suitable coating to protect the sensor against corrosion
or malfunction.
Environments with extreme temperature variations may
cause damage to the sensor(s).
Cleaning
The use of a dry, lint-free cloth is sufficient to clean the product.
Never use liquids or acidic fluids! Risk of damage!
Danger
Notice
Caution
Notice
The following conditions will result in an
„Assignment Error“:
- Exceeding 8HP stages or 8SP stages assigned.
- If the SP control sensor, HP control sensor, outdoor temperature
sensor, or the suction tube temperature sensor are selected more
than once.
- If no HP or SP control sensor has been selected.
- If relay functions 6-9 are assigned without the BMR being selected.
- If the SPcontrol sensor is selected without defining the SP stages
or SP analogue output.
- If the HP control sensor is selected without defining the HP stages
or HP analogue output.
- If the analogue output SP is selected without SP stages or the VVR
being switched on.
- If no SP control sensor is selected but
* SP stages
* a suction tube sensor
* SP analogue output
* Digital Input for
- feedback, load limitation, forced backrun,
external suction pressure error
- If no HP control sensor is selected but
* HP stages
* outdoor temperature sensor
* HP analogue output
* Digital Input for high pressure error
- If a motor with 0 stages is followed by a motor with 1 or more stages.
- If anything other than 1 relay is selected for each SP and HP stage.
- If a relay is selected for SP/HP stages which are not required.
- If there are more feedback inputs selected than the number
of motors.
- If the same input is selected more than once.
- Priorized motor is more than zero, but no SP stages are selected
- If the CRII mode is activated but
* SP motor 1 has less than 2 stages
* SP analogue output is selected
- If no SSR is assigned for CRII power stage.
- If at least 1 current input is selected but with no refrigerant defined.
Notice
