Technical information

2
TABLE OF CONTENTS
1. GENERAL INFORMATION
1.1. GENERAL INFORMATION
1.2. O
VERALL
VIEW
2. INSTALLATION
2.1. R
EFERENCE
STANDARDS
2.2. SITING THE APPLIANCE
2.3. OVERALL DIMENSIONS
2.4. MINIMUM CLEARANCES
2.5. MOUNTING THE
APPLIANCE
2.6. ELECTRICAL CONNECTION
2.7. GAS C
ONNECTION
2.8. WATER
CONNECTIONS
2.9. FLUE CONNECTIONS
2.10. ACCESSORY
CONNECTION
2.10.1. ROOM T
HERMOSTAT CONNECTION
2.10.2. REMOTE CONTROL CONNECTION
2.10.3. ACCESSORY CONNECTION TERMINAL BLOCK
2.10.4. CYLINDER TEMPERATURE PROBE CONNECTION
2.10.5. REMOTE CONTROL TERMINAL BLOCK AND
CYLINDER PROBE
2.11. E
LECTRICAL DIAGRAM
2.12. WATER CIRCUIT DIAGRAMS
3. COMMISSIONING
3.1. INITIAL PROCEDURES
3.2. REMOVING THE CASING
3.3. C
ONTROL PANEL
3.4. INITIAL START-UP
3.5. DISPLAY:MESSAGES SHOWN DURING
N
ORMAL OPERATION
3.6. O
PERATING
PARAMETERS
3.6.1. REGULATION MENU TABLE
3.6.2. SETTINGS DISPLAY
3.6.3. C
OMFORT
KEY
3.6.4. GAS REGULATION CHECK
3.6.5. IGNITION DELAY
3.6.6. A
DJUSTING THE
MAXIMUM HEATING POWER
3.6.7. SOFT LIGHT ADJUSTMENT
3.7. CHANGING THE TYPE OF GAS
3.8. BOILER SAFETY SYSTEMS
3.9. C
OMBUSTION ANALYSIS
3.10. DRAINING
4. ZONE VALVES
5. MAINTENANCE
5.1. GENERAL REMARKS
5.2. CLEANING THE PRIMARY EXCHANGER
5.3. C
LEANING THE CONDENSATE TRAP
5.4. OPERATIONAL TES
6. SERVICING INSTRUCTIONS
6.1. REPLACEMENT OF PARTS
6.2. TO GAIN GENERAL ACCESS
6.2.1. R
EMOVING THE
SIDE PANELS
6.3. A
CCESS TO THE COMBUSTION CHAMBER
6.3.1. REMOVING THE FAN
6.3.2. R
EMOVING THE
BURNER
6.3.3. R
EMOVING THE ELECTRODES
6.3.4. REMOVING THE COMBUSTION CHAMBER
INSPECTION
PANEL
6.3.5. R
EMOVING THE HEAT EXCHANGER
6.3.6. R
EMOVING THE CONDENSATE COLLECTOR
6.3.7. R
EMOVING THE CONDENSATE TRAP
6.3.8. R
EMOVING THE INJECTOR
6.4. REMOVING THE GAS VALVE
6.5. A
CCESS TO THE WATER C
IRCUIT
6.5.1. R
EMOVING THE D.H.W.
(S
ECONDARY)EXCHANGER
6.5.2. REMOVING THE SAFETY VALVE
6.5.3. R
EMOVING THE
AUTOMATIC AIR VENT
6.5.4. REMOVING THE PUMP PRESSURE SWITCH
6.5.5. REMOVING THE DIVERTER VALVE ACTUATOR
(MFFI
ONLY)
6.5.6. R
EMOVING THE D.H.W. FLOW SWITCH
(MFFI ONLY)
6.5.7. R
EMOVING THE PUMP
6.5.8. REMOVING THE PRESSURE GAUGE
6.5.9. REMOVING THE EXPANSION VESSEL
6.5.10. R
EMOVING THE D.H.W. TEMPERATURE
PROBE (N.T.C. - MFFI ONLY)
6.5.11. R
EMOVING THE C.H. FLOW TEMPERATURE
P
ROBE (N.T.C.)
6.5.12. R
EMOVING THE C.H. RETURN TEMPERATURE
PROBE (N.T.C.)
6.6. A
CCESS TO THE CONTROL SYSTEM
6.6.1. C
HECKING THE
FUSES
6.6.2. REMOVING THE PRINTED CIRCUIT BOARDS
6.6.3. REMOVING THE TIME CLOCK
7. FAULT FINDING
7.1 FAULT FINDING GUIDE (FLOW-CHARTS)
8. SHORT SPARES PARTS LIST
8.1. ecoCOMBI 27 MFFI
8.2. ecoSYSTEM 27 RFFI
9. TECHNICAL INFORMATION