All cooling and heating coils shall optimize rows and ﬁns per inch to meet the speciﬁed capacity. Coils shall have seamless copper tubes and shall be mechanically expanded to provide an efﬁcient, permanent bond between the tube and ﬁn.
Fins shall have high efﬁciency aluminum surface optimized for heat transfer, air pressure drop and carryover.
All coils shall be tested at 350 PSIG air pressure under water, and rated for a maximum 300 PSIG working pressure at 180°F maximum water temperature. Heating coils shall be furnished in the reheat position as standard.
Direct expansion cooling coils shall include a distributor and nozzle.
Steam coils shall be standard single tube steam type suitable for temperatures above 35°F and 15 PSIG maximum working pressure.
All water coils shall be provided with a manual air vent ﬁtting to allow for coil venting.
- Provide automatic air vents in lieu of manual-air vents.