A. GENERAL ...................................................................................................................................................................................................... 23
F. LONGER VENT RUNS ................................................................................................................................................................................... 26
H. VENTING DRAWINGS ................................................................................................................................................................................... 27
2. VENTING THROUGH AN EXISTING SYSTEM .................................................................................................................................................. 31
I. CONDENSATE REMOVAL SYSTEM............................................................................................................................................................... 35
PART 6 - WIRING ..................................................................................................................................................................... 37
A. LINE VOLTAGE INPUT .................................................................................................................................................................................. 37
B. LINE VOLTAGE CONDENSATE OUTPUT ..................................................................................................................................................... 37
C. LOW VOLTAGE OUTDOOR SENSOR INPUT ............................................................................................................................................... 37
D. INTERNAL WIRING DIAGRAM ...................................................................................................................................................................... 38
PART 7 - GAS CONNECTIONS ............................................................................................................................................... 38
A. GAS PIPING ................................................................................................................................................................................................... 39
B. GAS TABLE .................................................................................................................................................................................................... 39
C. GAS VALVE ................................................................................................................................................................................................... 40
PART 8 - CONTROLS............................................................................................................................................................... 41
A. CONTROL AND DISPLAY OVERVIEW .......................................................................................................................................................... 41
B. BASIC CONTROL FUNCTIONS ..................................................................................................................................................................... 42
1. TURNING WATER HEATER ON / OFF .............................................................................................................................................................. 42
2. RESETTING THE WATER HEATER .................................................................................................................................................................. 42
4. CHANGING USER SETPOINT ........................................................................................................................................................................... 43
C. ADVANCED CONTROL FUNCTIONS ............................................................................................................................................................ 43
2. TECHNICAL SERVICE AND NAVIGATION ........................................................................................................................................................ 43
D. OUTDOOR RESET ........................................................................................................................................................................................ 44
1. INQUIRY MODE AND NAVIGATION .................................................................................................................................................................. 45
2. HISTORY MODE AND NAVIGATION ................................................................................................................................................................. 45
3. RESET MODE AND NAVIGATION ..................................................................................................................................................................... 46
PART 9 - START-UP PROCEDURE ......................................................................................................................................... 47
A. OPERATING INSTRUCTIONS ....................................................................................................................................................................... 47
B. TEST MODE ................................................................................................................................................................................................... 47
C. MAINTENANCE ............................................................................................................................................................................................. 48
PART 10 - SHUTDOWN ............................................................................................................................................................ 49
A. SHUTDOWN PROCEDURE ........................................................................................................................................................................... 49
B. VACATION PROCEDURE .............................................................................................................................................................................. 49
C. FAILURE TO OPERATE ................................................................................................................................................................................ 49
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WHL-001 REV. 9.3.14