6
LP-542 REV. 6.2.16
PART 9 – CONNECT ELECTRICAL POWER / INITIAL STARTUP ......................................................................................... 44
A. GENERAL OPERATING CONDITIONS ................................................................................................................................... 44
B. WIRING INFORMATION .......................................................................................................................................................... 44
C. DIP SWITCHES ....................................................................................................................................................................... 45
D. WIRING A CASCADE SYSTEM ............................................................................................................................................... 46
PART 10 – OPERATING SYSTEM INSTRUCTIONS ................................................................................................................ 51
A. CONTROL PANEL ................................................................................................................................................................... 51
B. LCD DISPLAY DESCRIPTIONS .............................................................................................................................................. 51
C. START-UP SEQUENCE .......................................................................................................................................................... 51
D. CHANGING THE CH SET-POINT ............................................................................................................................................ 52
E. CHANGING THE TIME ............................................................................................................................................................. 53
F. STATUS DISPLAY MODE ........................................................................................................................................................ 53
G. INSTALLER MODE .................................................................................................................................................................. 54
H. ERROR MODE ......................................................................................................................................................................... 57
I. SETTING UP A CASCADE SYSTEM ........................................................................................................................................ 60
J. OUTDOOR TEMPERATURE MODE (OPTIONAL) ................................................................................................................... 61
K. 0-10 VOLT INPUT .................................................................................................................................................................... 62
L. STEP MODULATION ................................................................................................................................................................ 62
M. ERROR TREE ANALYSIS ....................................................................................................................................................... 63
1. FLAME DETECTION ................................................................................................................................................................... 63
2. GAS DETECTION ....................................................................................................................................................................... 63
3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH ................................................................................... 64
4. STORAGE / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS .................................................................................. 64
PART 11 – START-UP PREPARATION.................................................................................................................................... 64
A. BOILER WATER CHEMISTRY ................................................................................................................................................ 65
B. GLYCOL ANTIFREEZE SOLUTIONS ...................................................................................................................................... 65
C. CHECK FOR GAS LEAKS ....................................................................................................................................................... 65
D. FILL AND TEST WATER SYSTEM .......................................................................................................................................... 66
E. PURGE AIR FROM SYSTEM ................................................................................................................................................... 67
F. CHECK THERMOSTAT CIRCUIT(S) ....................................................................................................................................... 67
G. CONDENSATE REMOVAL ...................................................................................................................................................... 67
H. FINAL CHECKS BEFORE STARTING BOILER ...................................................................................................................... 68
I. ADJUSTING GAS PRESSURE AT THE BOILER ...................................................................................................................... 68
J. SETTING AND VERIFYING THE COMBUSTION SETTING .................................................................................................... 69
PART 12 –INSTALLATION AND START-UP CHECKLIST ...................................................................................................... 70
PART 13 – TROUBLESHOOTING ............................................................................................................................................ 72
PART 14 – ANNUAL MAINTENANCE PROCEDURES ............................................................................................................ 72
REPLACEMENT PARTS ................................................................................................................................................................ 76
Limited Warranty for UFT Boilers ................................................................................................................................................. 83
START-UP REPORT ....................................................................................................................................................................... 85
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