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A. MAINTENANCE PROCEDURES ....................................................................................................... 70
B. COMBUSTION CHAMBER COIL CLEANING INSTRUCTIONS FOR HEATER ............................... 71
BOILER START-UP REPORT ................................................................................................................... 78
MAINTENANCE REPORT .......................................................................................................................... 79
MAINTENANCE NOTES ............................................................................................................................ 82
HTP CUSTOMER INSTALLATION RECORD FORM ........................................................................ 83
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
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE CAN RESULT IN SUBSTANTIAL
PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDERWATER. Immediately call a qualified
service technician. Replace any part of the control unit that has been under water.
NOTE: If the boiler is exposed to the following, do not operate until all corrective steps have been made
by a qualified serviceman:
• FIRE
• DAMAGE
• WATER
Any claims for damage or shortage in shipment must be filed immediately against the transportation
company by the consignee.
Due to low water content of the boiler, improperly sizing the boiler in regard to heating system load will
result in excessive boiler cycling and accelerated component failure. HTP DOES NOT warrant failures
caused by improperly sized boiler applications. DO NOT oversize the boiler to the system. Modular boiler
installations greatly reduce the likelihood of boiler oversizing.