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A key technical feature is the diaphragm isolated spring chamber
critical for ensuring a hermetic seal during brazing and maintaining system pressure integrity
provided the system pressure does not exceed the hose's rated burst capacity
With nominal dimensions of 18" x 19
If your unit utilizes ASME-certified cast iron headers
Fenwal 35-615957-115 Control Refrigerant A key technical feature isThe Fenwal 35 615957 115 Control is a microprocessor based 24V DSI Calcana Ignition Control engineered for high demand gas fired heating systems. This direct spark ignition module serves as the official replacement for 35 615925 115, providing seamless integration into Calcana infrared heaters and commercial burner assemblies. Operating on 24 VAC with a 1 4 HP combustion blower relay, it features a 15 second pre purge, 15 second inter purge, and a 10