Installation manual

installation manual TWIN 80 EN
2
CONTENTS
CHAPTER 1. GENERAL
1.1. Technical data……………………………………………………………………………………………………………… 04
1.2. Dimensional sketch…………………………………………………………………………………….………………….. 05
1.3. Boiler layout…………………………………………………………………………………………….…………………… 06
1.4. Diagrams
1.4.1. Functional flow diagram………………………………………………………………….……………………. 08
1.4.2. Wiring diagram…………………………………………………………………………..…………………….. 09
1.5. Condensing boiler………………………………………………………………………………………………………….. 10
1.6. Operation
1.6.1. Display
1.6.2. Master – Left hand side printed circuit board.
1.6.3. Slave –right hand side printed circuit board.
1.7. LED indication
1.8. Permitted flue discharge and air supply resistance………………………………………………………..…………… 11
1.8.1. “Concentric flue and air” system
1.8.2. “2 pipe” system
1.9. Configurations……………………………………………………………………………………………………………… 12
1.10. Regulations
CHAPTER 2. INSTALLATION
2.1. Mounting………………………………………………………………………………………………..……………………. 13
2.1.1. Bracket
2.1.2 Adapter
2.1.2.1. “Concentric flue and air” system
2.1.2.2. “2 pipe” system (100/100)
2.1.3. Boiler
2.2. GAS………………………………………………………………………………………………….………………………. 14
2.3. WATER
2.3.1. Safety valve
2.3.2. Filling and straining device
2.3.3. Expansion vessel……………………………………………………………………………………….………………… 15
2.3.4. Dirt filter
2.3.5. Differential bypass valve
2.3.6. Condensation discharge
2.4. PUMP………………………………………………………………………………………..………………………………. 16
2.4.1. Unit system pump
2.4.2. External system pump (option)
2.5. ELECTRICAL……………………………………………………………………………………………………………….. 17
2.5.1. Supply connection
2.5.2. Supply fuse
2.5.3. Input
2.5.4. Output
2.5.5. Cascade connection of master and slave
2.6. Lay-out BIC992………………………………………………………………………………….………………………….. 18
2.6.1. Connectors & pinning
2.6.2. Table, pinning
2.7. Green connector block……………………………………………………………………………………………….……. 19
2.7.1. 24 Volt on/off room thermostat (standard)
2.7.2. 0-10 Volt input regulation (standard)
2.7.3. OpenTherm (standard)
2.7.4. Outdoor sensor (standard)
2.8. Options with installer responsibility……………………………………………………………………………………….. 20
2.8.1.
2.8.2. 230 Volt room thermostat (installer responsibility)
2.8.3. Remote alarm (installer responsibility)
CHAPTER 3. COMMISSIONING
3.1. Filling…………………………………………………………………………………………………………..…………….. 21
3.2. Reading the water pressure
3.3. Venting