35
INSTALLATION AND SERVICING INSTRUCTIONS
Installer Checklist
Please remember to carry out the following checks after installation. This will achieve complete customer
satisfaction, and avoid unnecessary service calls. A charge will be made for a service visit where the fault is not
due to a manufacturing defect.
Has a correct by-pass been fitted and adjusted?
Has the system and boiler been flushed?
Is the system and boiler full of water, and the correct pressure showing on the pressure gauge?
Is the Auto Air Vent open?
Has the pump been rotated manually?
Is the gas supply working pressure correct?
Is the boiler wired correctly? (See installation manual).
Has the D.H.W. flow rate been set to the customer requirements?
Has the customer been fully advised on the correct use of the boiler, system and controls?
Has the Benchmark Checklist in the use and maintenance section of this manual, been completed?
TABLE OF CONTENTS
5.1 Receiving the product . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.2 Dimensions and weight. . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4 Ventilation requirements . . . . . . . . . . . . . . . . . . . . . . . . 37
5.5 New installation or installation of a replacement
appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.6 Cleaning the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.7 Characteristics of feedwater and system treatment . . 38
5.8 Boiler installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.9 Plumbing connections . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.9.1 Plumbing accessories (optional) . . . . . . . . . 39
5.10 Condensate outlet/collection . . . . . . . . . . . . . . . . . . . . . 39
5.11 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.12 Connecting the flue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.12.1 Flue Terminal Positions . . . . . . . . . . . . . . . . 40
5.12.2 Smoke outlet and air inlet (combustion/heat
pump). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.12.3 Coaxial ducts (Ø 160/200 mm) for air inlet/
outlet (combustion/heat pump) . . . . . . . . . . 41
5.12.4 Holes for air inlet/outlet. . . . . . . . . . . . . . . . 42
5.12.5 Fitting the air ducts . . . . . . . . . . . . . . . . . . . 42
5.12.6 Smoke outlet (Ø 80 mm). . . . . . . . . . . . . . . . 43
5.13 Mounting the main control panel (remote) . . . . . . . . . . 43
5.14 Electrical connections and External controls. . . . . . . . 44
5.14.1 External sensor. . . . . . . . . . . . . . . . . . . . . . . 45
5.14.2 Chrono-thermostat or room thermostat for
the zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.14.3 EXAMPLE of use of the command/control
device on some types of heating systems. . 47
5.15 Refilling or emptying. . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.15.1 Method of filling a sealed system . . . . . . . . 48
5.15.2 SYSTEM Filling . . . . . . . . . . . . . . . . . . . . . . . 49
5.15.3 EMPTYING operations . . . . . . . . . . . . . . . . . 49
6.1 Preliminary operations . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.2 Before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.2.1 Self-calibrating procedure. . . . . . . . . . . . . . 50
6.3 Main control panel display and settings . . . . . . . . . . . . 51
6.3.1 Settings using the MODE button . . . . . . . . . 51
6.3.2 Navigating using the MODE button . . . . . . . 53
6.3.3 Settings using the MENU button . . . . . . . . . 54
6.3.4 Navigating using the MENU button. . . . . . . 59
6.4 Parameter setting and display . . . . . . . . . . . . . . . . . . . . 60
6.5 Fault / malfunction codes. . . . . . . . . . . . . . . . . . . . . . . . 63
6.6 Display of operating data and counters. . . . . . . . . . . . . 64
6.7 Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.7.1 Chimney sweep function . . . . . . . . . . . . . . . 65
6.8 Domestic hot water comfort function (preheating) . . . 66
6.9 Gas conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.1 Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.2 External cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.2.1 Cleaning the case . . . . . . . . . . . . . . . . . . . . . 67
7.3 Burner Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.3.1 Burner access. . . . . . . . . . . . . . . . . . . . . . . . 67
7.3.2 Cleaning the burner and the combustion
chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.3.3 Checking the ignition/detection electrode . 68
7.3.4 Cleaning the smoke exchanger . . . . . . . . . . 69
7.3.5 Final operations . . . . . . . . . . . . . . . . . . . . . . 69
7.3.6 Cleaning the heat pump. . . . . . . . . . . . . . . . 69
7.4 Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.4.1 Checking the flue . . . . . . . . . . . . . . . . . . . . . 69
7.4.2 Checking the expansion vessel pressure . . 69
7.5 Circuit Board Replacement . . . . . . . . . . . . . . . . . . . . . . 70
7.6 Malfunction codes and possible solutions . . . . . . . . . . 70