Demir Dokum HK 50 M Service Bulletin
                                                                                                                                                | |
Contents
| 
HK 50 M – HK 10M – HK 100S SERVICE BULLETIN1.7.11. Condense collection siphonIt's under the combustion chamber, on the right side. It is made from composite material. (Figure 1.14)1.7.12. Control panelIn HK 50 M and HK 100 M model products, it has one master card (main PCB) and one or two slave PCBs.HK 100 S model has 2 slave PCBs. In cascade applications, with HK 50 M and HK100M, it controls the slave cards connected to the whole system via a BUS connection.The device is controlled by a microprocessor and a self-diagnosis based system. It is possible to connect 60heating units to the system. In cascade applications, besides device heating, it is possible to make fastconnection to 2 different zones and to domestic hot water systems. (Figure 1.15)17.13. Water differential pressure switchIt is under the unit combustion chamber. If the flow water flow rate in one unit is below 500 l/h, it turns offthe system.When there is no water in the system, it turns off the burner and protects the system. (Figure 1.16)Working threshold;ON system water flow rate > 700-720 l/h (p 50-55 mbar)OFF system water flow rate < 540-560 l/h (p 35-40 mbar)Service Administration 11 03/2010 |
Related manuals for Demir Dokum HK 100M
manualsdatabase
Your AI-powered manual search engine