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. 9.4.14

B. LCD DISPLAY DESCRIPTIONS .............................................................................................................................................. 41

C. START-UP SEQUENCE .......................................................................................................................................................... 41

D. CHANGING THE DHW SET-POINT ........................................................................................................................................ 42

E. CHANGING THE TEMPERATURE INDICATOR ..................................................................................................................... 42

F. CHANGING THE CH SET-POINT ............................................................................................................................................ 42

G. STORAGE MODE .................................................................................................................................................................... 43

H. STATUS DISPLAY MODE ....................................................................................................................................................... 43

I. INSTALLER MODE .................................................................................................................................................................... 44

J. ERROR MODE ......................................................................................................................................................................... 46

K. ERROR TREE ANALYSIS ........................................................................................................................................................ 49

1. FLAME DETECTION ................................................................................................................................................................... 49

2. GAS DETECTION ....................................................................................................................................................................... 49

3. APS / BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH ................................................................................... 50

4. STORAGE / DHW / OP / CH OVERHEAT / EXHAUST OVERHEAT SENSORS ....................................................................... 50

L. OUTDOOR TEMPERATURE MODE (OPTIONAL)................................................................................................................... 50

M. 0-10 VOLT INPUT .................................................................................................................................................................... 51

PART 11 – START-UP PREPARATION.................................................................................................................................... 52

A. CHECK / CONTROL WATER CHEMISTRY ............................................................................................................................. 52

B. CHECK FOR GAS LEAKS ....................................................................................................................................................... 52

C. FILL AND TEST WATER SYSTEM .......................................................................................................................................... 53

D. PURGE AIR FROM CH AND INTERNAL STORAGE TANK .................................................................................................... 54

E. PURGE AIR FROM DHW SYSTEM ......................................................................................................................................... 54

F. CHECK THERMOSTAT CIRCUIT(S) ....................................................................................................................................... 54

G. CONDENSATE REMOVAL ...................................................................................................................................................... 55

H. FINAL CHECKS BEFORE STARTING APPLIANCE................................................................................................................ 55

I. ADJUSTING GAS PRESSURE AT THE APPLIANCE ............................................................................................................... 55

J. SETTING AND VERIFYING THE COMBUSTION SETTING .................................................................................................... 56

PART 12 –INSTALLATION AND START-UP CHECKLIST ...................................................................................................... 57

PART 13 – TROUBLESHOOTING ............................................................................................................................................ 58

PART 14 – ANNUAL MAINTENANCE PROCEDURES ............................................................................................................ 59

REPLACEMENT PARTS ................................................................................................................................................................ 64

Limited Warranty for Combination Appliances ........................................................................................................................... 67

MAINTENANCE REPORT .............................................................................................................................................................. 69

MAINTENANCE NOTES ................................................................................................................................................................. 72

CUSTOMER INSTALLATION RECORD FORM ............................................................................................................................. 73