HTP MC120 - Manual (Page 4)

4
LP-180 REV. 2.4.14
TABLE OF CONTENTS
PART 1 – PRODUCT AND SAFETY INFORMATION ............................................................................................................................... 4
A. APPLIANCE OPERATION ................................................................................................................................................................. 4
B. PRIMARY WATER ............................................................................................................................................................................. 4
C. FREEZE PROTECTION FLUIDS....................................................................................................................................................... 4
PART 2 – COMBUSTION AIR – CONTAMINATION PREVENTION ........................................................................................................ 5
PART 3 – MAINTENANCE SCHEDULE.................................................................................................................................................... 5
A. SERVICE TECHNICIAN .................................................................................................................................................................... 5
B. OWNER MAINTENANCE .................................................................................................................................................................. 6
PART 4 – MAINTENANCE PROCEDURES .............................................................................................................................................. 6
A. DAILY MAINTENANCE ...................................................................................................................................................................... 6
B. MONTHLY MAINTENANCE .............................................................................................................................................................. 7
C. 6 MONTH MAINTENANCE ................................................................................................................................................................ 7
MAINTENANCE NOTES .................................................................................................................................................................... 8
PART 1 – PRODUCT AND SAFETY INFORMATION
USER – Have this appliance serviced/inspected by a qualified service technician annually.
FAILURE TO ADHERE TO THE GUIDELINES IN THIS MANUAL CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE
PERSONAL INJURY, OR DEATH.
The combustion chamber insulation in this product contains ceramic fiber material. Ceramic fibers can be converted to cristobalite in
very high temperature applications. The International Agency for Research on Cancer (IARC) has concluded, “Crystalline silica inhaled
in the form of quartz or cristobalite from occupational sources is carcinogenic to humans (Group 1).” DO NOT, UNDER ANY
CIRCUMSTANCES, OPEN THE COMBUSTION CHAMBER OF THIS APPLIANCE! The combustion chamber of this appliance may be
opened by a qualified service technician ONLY. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SUBSTANTIAL
PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
A. APPLIANCE OPERATION

Do not block flow of the appliance exhaust vent or intake pipe.

Should overheating occur, or gas supply fail to shut off, do not turn off or disconnect electrical supply to the circulator. Instead,
shut off the gas supply at a location external to the appliance following the instructions on page 2.

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the
appliance and replace any part of the control system or gas control that has been under water.
B. PRIMARY WATER

Do not attempt to clean the heating system. Call a qualified service technician for service.

If you notice any leaks, immediately call a qualified service technician. Leaks in appliance or piping must be repaired at once.
C. FREEZE PROTECTION FLUIDS
Hydronic systems that use glycol as heat transfer fluid must be serviced periodically. Glycol can break down over time, become acidic,
and attack gaskets and seals in appliances. This can result in property damage, severe personal injury, or death.
Each glycol manufacturer has different recommendations for testing and replacement. Do not test glycol quality yourself. Have your
qualified service technician check glycol quality during annual servicing. If you are unsure when your glycol was last tested, call a
qualified service technician to test and replace glycol, if necessary.