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Part number 550-100-260/0520
2
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
Contents
The ECO Tec Gas-fired water boilers . . . . . . . . . . . . . 3
Please read before proceeding . . . . . . . . . . . . . . . . 6
Boiler location . . . . . . . . . . . . . . . . . . . . . . . . . 7
Prepare boiler location. . . . . . . . . . . . . . . . . . . . . 9
Wall-mounting the boiler. . . . . . . . . . . . . . . . . . . 10
Boiler hydrostatic test . . . . . . . . . . . . . . . . . . . . 12
Gas conversions . . . . . . . . . . . . . . . . . . . . . . . 14
Gas piping — sizing gas lines . . . . . . . . . . . . . . . . 19
Venting/air piping — general . . . . . . . . . . . . . . . . 20
Commonwealth of Massachusetts installations . . . . . . 24
Vent termination requirements . . . . . . . . . . . . . . . 25
Boiler room air openings. . . . . . . . . . . . . . . . . . . 26
Vent and air piping and boiler connections . . . . . . . . . 27
DIRECT VENT — Sidewall with separate pipes . . . . . . . 28
DIRECT VENT — Sidewall concentric . . . . . . . . . . . . 30
DIRECT VENT — Sidewall with W-M vent/air plate . . . . . 32
DIRECT VENT — Vertical with separate pipes. . . . . . . . 34
DIRECT VENT — Vertical concentric. . . . . . . . . . . . . 36
DIRECT VENT — Vertical vent /sidewall air . . . . . . . . . 38
Concentric termination, typical (sidewall or vertical). . . . 40
Install boiler water piping . . . . . . . . . . . . . . . . . . 41
Direct Connect System Piping - Single Boiler System 80/110/150
Boilers only . . . . . . . . . . . . . . . . . . . . . . . . . 46
Verify the application will work: . . . . . . . . . . . . . . . . . 46
Expansion tank location. . . . . . . . . . . . . . . . . . . . . . 46
Diaphragm- or bladder-type tank: . . . . . . . . . . . . . . . . 46
Closed-type expansion tank: . . . . . . . . . . . . . . . . . . . 47
Install relief valve . . . . . . . . . . . . . . . . . . . . . . . . . 48
ZONE VALVE zoning – direct connection . . . . . . . . . . . . . 49
Primary/Secondary System Piping - Single Boiler System . 50
Expansion tank location. . . . . . . . . . . . . . . . . . . . . . 50
Diaphragm- or bladder-type tank: . . . . . . . . . . . . . . . . 50
Closed-type expansion tank . . . . . . . . . . . . . . . . . . . 50
Install relief valve . . . . . . . . . . . . . . . . . . . . . . . . . 51
System water piping methods . . . . . . . . . . . . . . . . . . 52
ZONE VALVE zoning – primary/secondary . . . . . . . . . . . . . . . 53
Circulator zoning – primary/secondary . . . . . . . . . . . . . . . . 54
Circulator zoning – Multiple temperature zones with primary/secondary . 55
Install condensate drain line & trap assembly . . . . . . . 56
Gas piping . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Field wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 58
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels
or to important information concerning the life of the product.
Indicates presence of hazards that will cause severe
personal injury, death or substantial property
damage.
Indicates presence of hazards that can cause severe
personal injury, death or substantial property
damage.
Indicates presence of hazards that will or can
cause minor personal injury or property damage.
Indicates special instructions on installation,
operation or maintenance that are important
but not related to personal injury or property
damage.
Hazard definitions
Wiring diagram — schematic . . . . . . . . . . . . . . . . 66
Wiring diagram — ladder . . . . . . . . . . . . . . . . . . 68
Zoning with the ECO Tec Control. . . . . . . . . . . . . . . 70
ECO Tec control operation . . . . . . . . . . . . . . . . . . 72
Control settings menus . . . . . . . . . . . . . . . . . . . 76
EXPRESS SETUP — Example A . . . . . . . . . . . . . . . 78
EXPRESS SETUP — Example B . . . . . . . . . . . . . . . 80
EXPRESS SETUP — Example C . . . . . . . . . . . . . . . 82
HOMEOWNER NAVIGATION menus . . . . . . . . . . . . . . 86
CONTRACTOR menus. . . . . . . . . . . . . . . . . . . . . 87
BOILER SETTINGS menu . . . . . . . . . . . . . . . . . . . 88
Priority Setting screens . . . . . . . . . . . . . . . . . . . 89
System Settings . . . . . . . . . . . . . . . . . . . . . . . 91
Configure Inputs and Outputs . . . . . . . . . . . . . . . . 92
AUX Pump/Output . . . . . . . . . . . . . . . . . . . . . . 93
DIAGNOSTIC menu . . . . . . . . . . . . . . . . . . . . . . 94
SERVICE menus . . . . . . . . . . . . . . . . . . . . . . . 96
Startup — fill the system . . . . . . . . . . . . . . . . . . 97
Startup — final checks . . . . . . . . . . . . . . . . . . . 99
Check-out/startup verification. . . . . . . . . . . . . . . . 104
Annual startup and general maintenance . . . . . . . . . . 105
Annual startup . . . . . . . . . . . . . . . . . . . . . . . . 106
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 114
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 126
Cleaning heat exchanger flue side . . . . . . . . . . . . . 127
Cleaning DHW and Brazed Plate Heat Exchanger . . . . . . 131
Cleaning/maintenance for Domestic Water Inlet & Outlet Mani-
folds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Replacement parts . . . . . . . . . . . . . . . . . . . . . . 136
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Ratings — ECO Tec boilers . . . . . . . . . . . . . . . . . 149
Installation and Service Certificate . . . . . . . . . . . . . 151
Installation and Gas Boiler Data Collection Sheet. . . . . . 152
DO NOT SERVICE THE BOILER
WITHOUT AN ECO
Tec
MAINTENANCE KIT AVAILABLE
The maintenance kit includes components that may have to be
replaced when accessing or disassembling parts of the boiler.
Failure to replace damaged components and to use only the
parts specifically intended for the boiler can result in severe
personal injury, death or substantial property damage. See
Figure 125, page 137 for part number.
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