Unical PANEL BOARD DUAL-STAGE CASCADE, Руководство по эксплуатации

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Table of contents
1 - SYMBOLS USED IN THE MANUAL
Pay special attention when reading this manual to the parts marked by the symbols:
NOTE!
Suggestions for the user ATTENTION!
Possible hazardous situation
for the product and the environment DANGER!
Serious danger for
personal safety and life
2 - APPROPRIATE USE OF APPLIANCE
XC-K appliances have been built according to the current level of engineering and acknowledged technical
safety rules.
Nonetheless, if improperly used, dangers could arise for the safety and the very life of the user and other
persons or damage to the equipment or other objects.
The appliance is intended to operate in hot air circulation heating systems.
Any other use must be considered improper.
UNICAL shall not held be liable for any damage resulting from improper use; in this case the user is fully
responsible for the risk.
Use according to the intended purposes also include careful compliance with the instructions in this manual.
3 - WATER TREATMENT
• The hardness of the supplied water conditions the frequency at which the domestic hot water exchanger must be
cleaned.
• If the water has a hardness greater than 15°f, we recommend using water softeners, chosen according to the
characteristics of the water.
• We recommend checking and cleaning the domestic hot water exchanger at the end of the first year of use and
every two years thereafter; on this occasion, also check the state of wear of the anode.
TABLE OF CONTENTS
1 Symbols used in the manual ...................................................................................................................................................... 2
2 Appropriate use of appliance ...................................................................................................................................................... 2
3 Water treatment .......................................................................................................................................................................... 2
4 Information for system manager by installer/maintenance technician ........................................................................................ 3
5 Safety warnings .......................................................................................................................................................................... 3
6 Operating instructions ................................................................................................................................................................ 4
6.1 MODULATING MASTER panel board code 37892 (with single boiler) ............................................................................... 4
6.2 MODULATING MASTER panel board code 37892 (with boilers in cascade) ...................................................................... 7
6.3 MODULATING CASCADE panel board code 37900 (with boilers in cascade) ................................................................. 10
6.4 DUAL-STAGE MASTER panel board code 38778 (with single boiler) ............................................................................... 15
6.5 DUAL-STAGE MASTER panel board code 38778 (with boilers in cascade) ..................................................................... 18
6.6 DUAL-STAGE CASCADE panel board code 37901 (with boilers in cascade) ................................................................... 21
6.7 Checks before commissioning ...........................................................................................................................................
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6.8 Eliminating faults ................................................................................................................................................................ 26