Chilled water/Hot water coils Coils are manufactured from seamless copper tubes mechanically expanded into drawn fin collars of the fin surface. Tubes are staggered in the direction of airflow. Coil circuiting is counter flow to direction of airflow.
Headers
Seamless copper tube with die-formed holes that provide a parallel surface to the coil tube for strong brazing joints. Standard 1⁄4” vent with brass Schrader valve.
Connections
Sweat connections are standard with optional red brass schedule 40 male pipe thread (MPT).
Casing
Standard casings are manufactured from 18 Gauge G-90 galvanized material and include 1” flanges for ease of stacking and mounting.
Testing
All coils are leak tested under water at 500 PSIG of air and are suitable for operation at 400 PSIG.
Direct expansion coils Coils are manufactured from seamless copper tubes mechanically expanded into drawn fin collars of the fin surface. Tubes are staggered in the direction of airflow. Coil circuiting is counter flow to direction of airflow.
Distributors
Brass liquid distributors are factory mounted using equal length tubes and circuited for equal refrigerant distribution to coil.
Connections
Sweat connections are standard
Casing
Standard casings are manufactured from 18 Gauge G-90 galvanized material and include 1” flanges for ease of stacking and mounting.
Testing
Coils are leak tested under water at 500 PSIG dehydrated, charged with nitrogen and sealed prior to shipping.
