µC
2
SE for process chiller
Electronic controller
ENG
I n t e g r a t e d C o n t r o l S o l u t i o n s & E n e r g y S a v i n g s
ATTENTION DISPOSAL
CAREL bases the development of its products on several years’ experience in the HVAC field, on continuous investment in technological innovation of the product, on rigorous quality procedures and processes with in-circuit and function tests on 100% of its production, on the most innovative production technologies available on the market.
CAREL and its branch offices/affiliates do not guarantee, in any case, that all the aspects of the product and the software included in the product will respond to the demands of the final application, even if the product is built according to state-of-the-art techniques.
The client (builder, developer or installer of the final equipment) assumes every responsibility and risk relating to the configuration of the product in order to reach the expected results in relation to the specific final installation and/or equipment.
CAREL in this case, through specific agreements, can intervene as consultant for the positive result of the final start-up machine/application, but in no case can it be held responsible for the positive working of the final equipment/apparatus.
The CAREL product is a state-of-the-art product, whose operation is specified in the technical documentation supplied with the product or can be downloaded, even prior to purchase, from the website www.carel.com
.
Each CAREL product, in relation to its advanced technological level, needs a phase of definition / configuration / programming / commissioning so that it can function at its best for the specific application. The lack of such phase of study, as indicated in the manual, can cause the final product to malfunction of which CAREL cannot be held responsible.
Only qualified personnel can install or carry out technical assistance interventions on the product.
The final client must use the product only in the manner described in the documentation related to the product itself.
Without excluding proper compliance with further warnings present in the manual, it is stressed that in any case it is necessary, for each CAREL product:
Not allow the electronic circuits getting wet. Rain, humidity and all types of liquids or condensate contain corrosive mineral substances that can damage the electrical circuits. In any case, the product should be used and stored in environments that respect the temperature and humidity limits specified in the manual;
Not to install the device in a particularly hot environments. Temperatures that are too high can shorten the duration of the electronic devices, damaging them and distorting or melting the parts in plastic. In any case, the product should be used and stored in environments that respect the temperature and humidity limits specified in the manual;
Not to try to open the device in any way different than that indicated in the manual;
Not to drop, hit or shake the device, because the internal circuits and mechanisms could suffer irreparable damage.
Not to use corrosive chemical products, aggressive solvents or detergents to clean the device;
Not to use the product in application environments different than those specified in the technical manual.
All the above reported suggestions are also valid for the control, serial boards, programming keys or however for any other accessory in the CAREL product portfolio.
CAREL adopts a continuous development policy. Therefore, CAREL reserves the right to carry out modifications and improvements on any product described in this document without prior notice.
The technical data in the manual can undergo modifications without forewarning.
The liability of CAREL in relation to its own product is governed by CAREL’s general contract conditions edited on the www.carel.com
and/or by specific agreements with clients; in particular, within the criteria consented by the applicable norm, in no way will
CAREL, its employees or its branch offices/affiliates be responsible for possible lack of earnings or sales, loss of data and information, cost of replacement goods or services, damage to objects or persons, work interruptions, or possible direct, indirect, accidental, patrimonial, coverage, punitive, special or consequential damage in any way caused, be they contractual, out-of-contract, or due to negligence or other responsibility originating from the installation, use or inability of use of the product, even if CAREL or its branch offices/affiliates have been warned of the possibility of damage.
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INFORMATION FOR THE USERS REGARDING THE CORRECT
HANDLING OF WASTE ELECTRIC AND ELECTRONIC EQUIPMENT
(WEEE)
With reference to European Parliament and Council Directive 2002/96/EC issued on 27
January 2003 and the related national implementation legislation, please note that:
WEEE cannot be disposed of as municipal waste, said waste must be collected separately;
the public or private waste collection systems defined by local legislation must be used. Moreover, the equipment can be returned to the distributor at the end of its working life when buying new equipment;
this equipment can contain hazardous substances: improper use or incorrect disposal of such may have negative effects on human health and on the environment;
the symbol (crossed-out wheeley bin) shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately;
in the event of illegal disposal of electrical and electronic waste, the penalties are specified by local waste disposal legislation.
Materials warranty: 2 years (from the date of production, excluding consumables).
Type-approval: the quality and safety of CAREL S.P.A. products are guaranteed by the design system and ISO 9001 certified production.
ATTENTION: separate the probe cables and the digital input cables as much as possible from the inductive load and power cables to prevent possible electro-magnetic interference. Never introduce power cables and signal cables (including those of electric control board) into the same cable troughs.
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Index
1. Introduction ..............................................................................................................................................................................................................................................7
1.2 Codes .............................................................................................................................................................................................................................................7
1.3 Accessories....................................................................................................................................................................................................................................7
2. Installation.................................................................................................................................................................................................................................................9
2.1 Type of fixing and dimensions.................................................................................................................................................................................................9
2.3 µC
2
SE wiring diagram.............................................................................................................................................................................................................. 10
2.4 I/O board wiring diagram....................................................................................................................................................................................................... 10
2.7 Connection with CONV0/10VA0 and CONVONOFF0 modules ................................................................................................................................... 11
2.8 Installation.................................................................................................................................................................................................................................. 11
2.9 Programming key (copy of the set-up)............................................................................................................................................................................... 12
3.1 Display ........................................................................................................................................................................................................................................ 13
3.2 Keyboard.................................................................................................................................................................................................................................... 13
3.4 Programming ............................................................................................................................................................................................................................ 14
4. Commissioning..................................................................................................................................................................................................................................... 15
4.2 Configuration ............................................................................................................................................................................................................................ 15
4.3 Minimum and maximum fan speed calculation............................................................................................................................................................... 16
5. Functions................................................................................................................................................................................................................................................ 17
5.2 Probes (analogue inputs)....................................................................................................................................................................................................... 17
5.7 Compensation........................................................................................................................................................................................................................... 19
6. Control .................................................................................................................................................................................................................................................... 21
6.1 Anti-freeze.................................................................................................................................................................................................................................. 21
6.3
6.3
Anti-freeze automatic switch-on ........................................................................................................................................................................................... 21
Anti-freeze with EVD
4
............................................................................................................................................................................................................... 21
6.4 Compressors management ................................................................................................................................................................................................... 21
6.6 Compressor – evaporator pump/valve delays.................................................................................................................................................................. 24
8. Alarms ..................................................................................................................................................................................................................................................... 35
8.1 Type of alarms .......................................................................................................................................................................................................................... 35
8.3 Alarm digital inputs/outputs .................................................................................................................................................................................................. 38
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