this is the replacement coil only

compatible with most residential and commercial low voltage transformers

The ZP31K5E-TF5-830 has a rated LRA of 73A

and RK909RT-2 1/2-3

ensuring the furnace operates within safe thermal parameters to prevent heat exchanger overheating

Watts 0383740 Valve R-410A this is the replacement coilThe Watts 0383740 (Series 740) is a high capacity iron body boiler pressure relief valve designed specifically for large scale hot water industrial and commercial heating systems. This ASME Section IV certified valve features a 1. 5 inch NPT female inlet and a 2 inch NPT female expanded outlet to facilitate rapid pressure discharge, effectively preventing catastrophic system failure due to thermal runaway. With a factory set relief pressure of 40 PSI