Ariston MICROCOMBI 23 MFFI Installation And Servicing Instructions

2
TABLE OF CONTENTS
1. GENERAL INFORMATION PAGE.3
1.1 G
ENERAL INSTRUCTIONS PAGE.3
1.2 O
VERALL VIEW PAGE.4
2. INSTALLATION PAGE.4
2.1 R
EFERENCE STANDARDS PAGE.4
2.2 SITING THE APPLIANCE PAGE.5
2.3 O
VERALL DIMENSIONS PAGE.6
2.4 CLEARANCES PAGE.6
2.5 MOUNTING THE APPLIANCE PAGE.7
2.6 E
LECTRICAL CONNECTION PAGE.7
2.7 GAS CONNECTION PAGE.8
2.8 WATER CONNECTION PAGE.8
2.9 FLUE CONNECTION PAGE.10
2.10 C
ONTROL PANEL PAGE.17
2,11 REMOVING THE FRONT PANEL PAGE.17
2.12 ROOM THERMOSTAT
CONNECTION PAGE.18
2.13 ELECTRICAL/SYSTEM DIAGRAMS PAGE.19
2.14 WATER CIRCUIT DIAGRAM PAGE.20
3. COMMISSIONING PAGE.21
3.1 I
NITIAL PREPARATION PAGE.21
3.2 INITIAL START-UP PAGE.22
3.3 OPERATIONAL ADJUSTMENTS PAGE.22
3.4 COMBUSTION ANALYSIS PAGE.23
3.5 P
RODUCT OF COMBUSTION
DISCHARGE MONITORING PAGE.23
3.6 BOILER SAFETY SYSTEMS PAGE.23
3.7 D
RAINING THE SYSTEM PAGE.24
3.8 COMPLETION PAGE.24
3.9 OPERATIONAL CHECKS PAGE.24
3.10 I
NSTRUCTING THE END USER PAGE.25
4. GAS ADJUSTMENTS
4.1 CHANGING THE TYPE OF GAS PAGE.26
4.2 ADJUSTING THE GAS PRESSURES
(SIT SIGMA)PAGE.26
ADJUSTING THE GAS PRESSURES
(HONEYWELL)PAGE.28
5. MAINTENANCE PAGE.30
6. SERVICING INSTRUCTIONS PAGE.31
6.1 R
EPLACEMENT OF PARTS PAGE.31
6.2 TO GAIN GENERAL ACCESS PAGE.31
6.2.1 R
EMOVING THE FRONT
PANEL PAGE.31
6.2.2 REMOVING THE SEALED
CHAMBER FRONT PANEL PAGE.32
6.2.3 REMOVING THE SIDE
PANELS PAGE.32
6.3 A
CCESS TO THE COMBUSTION
CHAMBER PAGE.33
6.3.1 REMOVING THE
COMBUSTION CHAMBER PAGE.33
6.3.2 REMOVING THE BURNER
AND
JETS PAGE.33
6.3.3 REMOVING THE
ELECTRODES PAGE.33
6.3.4 REMOVING THE MAIN HEAT
EXCHANGER PAGE.34
6.3.5 REMOVING THE AIR
PRESSURE SWITCH PAGE.35
6.3.6 R
EMOVING THE FAN PAGE.35
6.4 ACCESS TO THE GAS VALVE PAGE.36
6.4.1 REMOVING THE SPARK
GENERATOR (SIT SIGMA)PAGE.36
6.4.2 REMOVING THE SPARK
GENERATOR (HONEYWELL)PAGE.36
6.4.3 R
EMOVING THE GAS VALVE
(SIT SIGMA)PAGE.37
6.4.4 REMOVING THE GAS VALVE
(HONEYWELL)PAGE.37
6.5 A
CCESS TO THE WATER CIRCUIT PAGE.38
6.5.1 REMOVING THE PUMP
PRESSURE SWITCH PAGE.38
6.5.2 R
EMOVING THE SAFETY
VALVE PAGE.38
6.5.3 REMOVING THE AUTOMATIC
AIR VENT PAGE.38
6.5.4 REMOVING THE PUMP PAGE.39
6.5.5 REMOVING THE PRESSURE
GAUGE PAGE.40
6.5.6 R
EMOVING THE EXPANSION
VESSEL PAGE.40
6.5.7 REMOVING THE OVERHEAT
THERMOSTAT PAGE.41
6.5.8 REMOVING THE CENTRAL
HEATING TEMPERATURE
SENSOR (N.T.C.) PAGE.41
6.5.9 REMOVING THE D.H.W.
TEMPERATURE SENSOR
(N.T.C.) PAGE.41
6.5.10 REMOVING THE D.H.W.
FLOW SWITCH PAGE.42
6.6 ACCESS TO THE CONTROL SYSTEM PAGE.42
6.6.1 C
HECKING THE FUSES PAGE.42
6.6.2 REMOVING THE TIME CLOCK PAGE.43
6.6.3 REMOVING THE P.C.B. PAGE.43
7. FAULT FINDING PAGE.44
7.1 F
AULT FINDING GUIDE
(FLOW-CHARTS)PAGE.44
8. SHORT SPARE PARTS LIST PAGE.49
9. TECHNICAL INFORMATION PAGE.52

Ariston MICROCOMBI 23 MFFI Specifications

General

Brand	Ariston
Model	MICROCOMBI 23 MFFI
Category	Boiler
Language	English