TECHNICAL MANUAL
CVM 3000
C 5030 CV/04-99 GB
41
10 Upgrading Eprom
The software version is identified by the following code, shown above the EPROM:
MSK XX-XX
If you need to upgrade the software of a board from an MSK19_16 version or older to an
MSK 19_17 version or higher, contact CLIMAVENETA.
If you need to upgrade the board from an MSK 19_17 version to an improved version,
follow this procedure:
1. disable the compressors (see chap.8.4);
2. the displays must be off;
3. print the parameters (see chap.11);
4. disconnect the power supply to the unit;
5. remove the EPROM (Figure 1-1 MAIN BOARD) from its base;
6. install the new EPROM; be careful not to touch the pins with your fingers;;
7. install the self-calibration kit in the appropriate board terminals;
8. reconnect the power supply;
9. to access the programming menu, press the NASCOSTO 2*+C3 keys “arrow up”. A
dot should start flashing on the C2 display;
10.scroll through the parameter list using the C3 keys, until the “PASS” message appears
on the C2 display;
11.enter the password visualised on the B5 display using the B6 keys;
12.scroll through the parameter list using the C3 keys, visualise parameter 120 on the C2
display;
13.press the NASCOSTO 1*+C3 key “arrow up”. The LED on the T7 key will light up.
Wait until the LED on the T7 keys goes off;
14.scroll through the parameter list using the C3 keys, visualise parameter 121 on the C2
display;
(*) For information on these keys, contact the Climaveneta Customer Service Dept.
SOFTWARE MODEL:
19 = STANDARD AND SCREW
VERSION
SOFTWARE VERSION:
PROGRESSIVE UPGRADE
NUMBER