02-658 C.M.R. ch. 109, § 22 - Welding of Heat Exchangers

1. The manufacturer shall be consulted to determine whether the welding of a heat exchanger is feasible and would be consistent with sound engineering practice. The manufacturer shall provide a written statement as to the feasibility of its heat exchanger being welded.

2. The repair of a heat exchanger by welding shall be performed by a welder in a procedure suitable for the material. It is the responsibility of the master licensee to oversee such repairs.

3. The master licensee shall receive guidance from the welder as to the feasibility and acceptability, of performing the welding procedure of the metals prior to the repair of any heat exchanger.

4. After completion of said repairs or welding, the master licensee shall obtain a written statement from the welder documenting that the heat exchanger has been welded, tested, and is acceptable for use without leakage of after-products into the living space.

5. Written documentation of said repairs or welding shall be provided to the homeowner. The original documentation shall be kept on file by the master licensee who requested the welding. A copy of all the repair documents containing, at a minimum, the following information shall be sent to the Board:

A. The name of the owner and location where the repair was completed;

B. The name and address of the welder;

C. The specific area(s) or location(s) where the repair or welding was performed;

D. Written approval of the repair from the manufacturer;

E. Equipment identification information, i.e. model name, model number, serial number and gross Btu. rating; and

F. The name, address, and license number of the master licensee who requested the repair.

6. The welding repair of a heat exchanger may be performedonce by a State Certified Welder welder. If for any reason the welding repairs have to be done a second time, the master licensee shall notify the Board for approval before attempting to weld a second time. When circumstances are such that the heat exchanger is no longer in production, the master licensee shall request approval from the Board in writing prior to any repairs being performed.

Notes

02-658 C.M.R. ch. 109, § 22