HTP EL-399NVWH - Manual (Page 6)

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LP- 346 REV. 3.20.14
C. CONDENSATE REMOVAL ...................................................................................................................................................... 53
D. FINAL CHECKS BEFORE STARTING HEATER ..................................................................................................................... 54
E. SETTING UP A SINGLE HEATER ........................................................................................................................................... 54
F. SETTING UP A CASCADED SYSTEM .................................................................................................................................... 54
G. LOCKOUT CONDITION ........................................................................................................................................................... 55
H. CASCADE SYSTEM PROGRAMMING .................................................................................................................................... 55
PART 9 – START-UP PROCEDURE ......................................................................................................................................... 56
A. CONTROL OVERVIEW ............................................................................................................................................................ 56
B. NAVIGATION OF THE DISPLAY ............................................................................................................................................. 56
C. OPERATING INSTRUCTIONS ................................................................................................................................................ 57
D. PROGRAMMING HEATER SETTINGS ................................................................................................................................... 57
E. PROGRAMMING THE SYSTEM SETTING ............................................................................................................................. 58
F. SYSTEM SETTING PROGRAM NAVIGATION ........................................................................................................................ 58
G. RESETTING THE MAINTENANCE SCHEDULE ..................................................................................................................... 60
PART 10 – START-UP PROCEDURES FOR THE INSTALLER ............................................................................................... 61
A. HEATER CONTROL STATUS MENU ...................................................................................................................................... 61
B. CASCADE MENU ..................................................................................................................................................................... 62
C. HEATER TEST MODE ............................................................................................................................................................. 63
PART 11 – TROUBLESHOOTING ............................................................................................................................................ 63
A. HEATER ERROR CODE .......................................................................................................................................................... 63
B. HEATER ERROR ..................................................................................................................................................................... 63
C. HEATER FAULT....................................................................................................................................................................... 63
D. USER INTERFACE DISPLAY .................................................................................................................................................. 64
PART 12 – MAINTENANCE ...................................................................................................................................................... 69
A. MAINTENANCE PROCEDURES ............................................................................................................................................. 69
B. COMBUSTION CHAMBER COIL CLEANING INSTRUCTIONS FOR HEATER ...................................................................... 70
C. CLEANING WATER SIDE OF HEAT EXCHANGER ................................................................................................................ 70
D. MAINTAINING THE CONDENSATE SYSTEM ........................................................................................................................ 71
HEATER START-UP REPORT .................................................................................................................................................. 76
MAINTENANCE REPORT ......................................................................................................................................................... 76
MAINTENANCE NOTES ................................................................................................................................................................. 80
HTP CUSTOMER INSTALLATION RECORD FORM ...................................................................................................................... 81
PART 1 – GENERAL SAFETY INFORMATION
A. PRECAUTIONS
This appliance is for indoor installations only. Clearance to combustible materials: 0” top, bottom, sides and back. Left side has all
heater mechanical connections. 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.
For installation on combustible flooring. Category IV vent systems only.