Carel µC2 User Manual

5
E N G L I S H
µC
2
- +030220731 - rel. 1.2 - 26.10.2007
Content
1. INTRODUCTION 7
1.1 General description ..............................................................................................................................7
1.2 User interface ........................................................................................................................................7
2. CONNECTIONS 9
2.1 General diagram ...................................................................................................................................9
2.2 Network layout .....................................................................................................................................9
3. APPLICATIONS 10
3.1 Air/air unit ..............................................................................................................................................10
3.2 AIR/AIR heat pump ..............................................................................................................................
11
3.3 AIR/WATER chiller ................................................................................................................................
13
3.4 AIR/WATER heat pump .......................................................................................................................
14
3.5 WATER/WATER chiller .........................................................................................................................
16
3.6 WATER/WATER heat pump with reversal on gas ..........................................................................
circuit ...............................................................................................................................................................17
3.7 WATER/WATER heat pump with reversal on water circuit ..........................................................
19
3.8 Air-cooled condensing unit without reverse cycle .......................................................................
20
3.9 Reverse-cycle air-cooled condensing unit ......................................................................................
21
3.10 Water-cooled condensing unit without reverse cycle ................................................................
22
3.11 Reverse-cycle water-cooled condensing unit ...............................................................................
23
4. PARAMETERS 25
4.1 General parameters .............................................................................................................................25
4.2 Menu structure .....................................................................................................................................25
4.3
Parameter tables ..................................................................................................................................26
5. DESCRIPTION OF THE PARAMETERS 32
6. TABLE OF ALARMS 4
9
7. CONNECTIONS,ACCESSORIES AND OPTIONS 5
3
7.1 Connection diagram .............................................................................................................................53
7.2 Expansion card .......................................................................................................................................54
7.3 EVD4*: Electronic expansion valve driver ........................................................................................
54
7.4 Fan speed control board (code MCHRTF*) .....................................................................................55
7.5 Fan ON/OFF control board (code CONVONOFF0) ......................................................................55
7.6 PWM to 0 to 10Vdc (or 4 to 20 mA)conversion board for fans (code CONV0/10A0) .........55
7.7 Minimum and maximum fan speed calculation .............................................................................55
7.8 Programming key (code PSOPZKEYA0) ...........................................................................................56
7.9 RS485 serial options ..............................................................................................................................57
7.10 Remote terminal for µC
2
.....................................................................................................................57
8. DIMENSIONS 61
9. CODES 6
3
10. TECHNICAL SPECIFICATIONS AND SOFTWARE UPDATES 6
4
10.1 Technical specifications .....................................................................................................................64
11.1 Software updates ................................................................................................................................65

Carel µC2 Specifications

General

Brand	Carel
Model	µC2
Category	Controller
Language	English