Instructions / Assembly

ManualsBrandsWestinghouse ManualsHeating, Ventilation, and Air ConditioningCondensing 93.2% Combination Natural Gas Floor Mount Boiler/Water Heater with 140,000 BTU Input

WHL-015 REV. 8.24.16

PART 10 – OPERATING SYSTEM INSTRUCTIONS ................................................................................................................ 48

A. CONTROL PANEL ................................................................................................................................................................... 48

B. LCD DISPLAY DESCRIPTIONS .............................................................................................................................................. 49

C. START-UP SEQUENCE .......................................................................................................................................................... 49

D. CHANGING THE DHW SET-POINT ........................................................................................................................................ 50

E. CHANGING THE TEMPERATURE INDICATOR ..................................................................................................................... 50

F. CHANGING THE CH SET-POINT ............................................................................................................................................ 50

G. STORAGE MODE .................................................................................................................................................................... 51

H. STATUS DISPLAY MODE ....................................................................................................................................................... 51

I. INSTALLER MODE .................................................................................................................................................................... 52

J. ERROR MODE ......................................................................................................................................................................... 54

K. ERROR TREE ANALYSIS ........................................................................................................................................................ 57

1. FLAME DETECTION ................................................................................................................................................................... 57

2. GAS DETECTION ....................................................................................................................................................................... 57

3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH ................................................................................... 58

4. STORAGE / DHW / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS ....................................................................... 58

L. OUTDOOR TEMPERATURE MODE (OPTIONAL)................................................................................................................... 58

M. 0-10 VOLT INPUT .................................................................................................................................................................... 59

PART 11 – START-UP PREPARATION.................................................................................................................................... 60

A. CHECK / CONTROL WATER CHEMISTRY ............................................................................................................................. 60

B. GLYCOL ANTIFREEZE SOLUTIONS ...................................................................................................................................... 60

C. CHECK FOR GAS LEAKS ....................................................................................................................................................... 61

D. FILL AND TEST WATER SYSTEM .......................................................................................................................................... 61

E. PURGE AIR FROM CH AND INTERNAL STORAGE TANK .................................................................................................... 62

F. PURGE AIR FROM DHW SYSTEM ......................................................................................................................................... 62

G. CHECK THERMOSTAT CIRCUIT(S) ....................................................................................................................................... 63

H. CONDENSATE REMOVAL ...................................................................................................................................................... 63

I. FINAL CHECKS BEFORE STARTING APPLIANCE ................................................................................................................. 63

J. ADJUSTING GAS PRESSURE AT THE APPLIANCE .............................................................................................................. 63

K. SETTING AND VERIFYING THE COMBUSTION SETTING ................................................................................................... 64

PART 12 –INSTALLATION AND START-UP CHECKLIST ...................................................................................................... 65

PART 13 – TROUBLESHOOTING ............................................................................................................................................ 67

PART 14 – ANNUAL MAINTENANCE PROCEDURES ............................................................................................................ 68

REPLACEMENT PARTS ................................................................................................................................................................ 72

Limited Warranty for Combination Appliances ........................................................................................................................... 82

START-UP REPORT ....................................................................................................................................................................... 84

MAINTENANCE REPORT .............................................................................................................................................................. 85

MAINTENANCE NOTES ................................................................................................................................................................. 88

CUSTOMER INSTALLATION RECORD FORM ............................................................................................................................. 89