Specifications

6
LP- 276 REV. 9.4.14
B. CHECK FOR GAS LEAKS ........................................................................................................................................................ 51
C. CONDENSATE REMOVAL ...................................................................................................................................................... 51
D. FINAL CHECKS BEFORE STARTING BOILER ....................................................................................................................... 51
E. SETTING UP A SINGLE BOILER ............................................................................................................................................. 51
F. SETTING UP A CASCADED SYSTEM ..................................................................................................................................... 52
G. LOCKOUT CONDITION ........................................................................................................................................................... 52
H. CASCADE SYSTEM PROGRAMMING .................................................................................................................................... 52
PART 9 – START-UP PROCEDURE ......................................................................................................................................... 53
A. OPERATING INSTRUCTIONS ................................................................................................................................................. 53
B. ADJUSTING THE OPERATING SET POINTS OF THE VWH DISPLAY .................................................................................. 54
C. STATUS MENU ........................................................................................................................................................................ 54
D. TEST MODE ............................................................................................................................................................................. 55
PART 10 – START-UP PROCEDURES FOR THE INSTALLER ............................................................................................... 56
A. PROGRAMMING FOR THE INSTALLER ................................................................................................................................. 56
B. PROGRAM ACCESS ................................................................................................................................................................ 56
C. PROGRAM NAVIGATION ........................................................................................................................................................ 56
PART 11 – TROUBLESHOOTING ............................................................................................................................................ 57
A. VWH ERROR CODE ................................................................................................................................................................ 57
B. BOILER ERROR ....................................................................................................................................................................... 57
C. BOILER FAULT ........................................................................................................................................................................ 58
PART 12 – MAINTENANCE ...................................................................................................................................................... 60
A. MAINTENANCE PROCEDURES .............................................................................................................................................. 60
B. COMBUSTION CHAMBER COIL CLEANING INSTRUCTIONS FOR HEATER ...................................................................... 61
C. CLEANING WATER SIDE OF HEAT EXCHANGER ................................................................................................................ 62
BOILER START-UP REPORT ................................................................................................................................................... 68
MAINTENANCE REPORT ......................................................................................................................................................... 68
MAINTENANCE NOTES .................................................................................................................................................................. 72
HTP CUSTOMER INSTALLATION RECORD FORM...................................................................................................................... 73
PART 1 – GENERAL SAFETY INFORMATION
A. PRECAUTIONS
This appliance is for indoor installations only. Clearance to combustible materials: 0” top, bottom, sides and back. Front must have
room for service, 24” recommended. (A combustible door or removable panel is acceptable front clearance.) This appliance has been
approved for closet installation. Do not install this appliance directly on carpeting. This appliance may be installed on combustible
flooring. For use with Category IV vent systems only.
INSTALLER – Read all instructions in this manual before installing. Perform steps in the order given.
USER – This manual is for use only by a qualified heating installer/service technician. Refer to user’s information manual for your
reference. Have this boiler serviced/inspected by a qualified service technician annually.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE AND HAVE THIS BOILER SERVICED/INSPECTED ANNUALLY
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.