The supply air grille(s) must be sized
and located to allow for proper air circulation within the cabin
area(s). Grille locations close to the ceiling, or directed upward,
provide the best air circulation. Undersized grilles and plenums,
along with any crushed or kinked ductwork, will result in poor or
inadequate air performance.
Both condensation drain lines must be
connected to the air handlers' two (2) drain pan spuds using
reinforced flexible hose (5/8") and clamps. The drains may be
teed together, providing there is a minimum drop of 2" from the
drain pan to the tee fitting. The drain line must be routed
downwards to a proper sump or overboard discharge. Properly secure
the drain lines to prevent movement or lifting during vessel
operation. Check the drains upon completion by pouring two (2)
quarts of water into the drain pan. NOTE: Condensation drain lines
may need to be insulated when located overhead in lockers to prevent
sweating of the line , which could cause water damage.
Water connections from the circulation
circuit to the unit are to be reinforced flexible hose and double
clamped, direction of clamps should be reversed. Attach the hose to
the 5/8" hose barb fittings on the water inlet and outlet of
the unit. All hose, pipe and connections must be insulated properly
to prevent condensation. Use approved closed cell tube insulation
(1/2" minimum) on the hose, and foam tape on the fittings (5-6)
wraps.
All wiring must be sized according to
marine design standards. Only stranded, tinned copper wire is to be
used. All electrical connections to the air handler are to be made
inside the electrical junction boxes provided on the assembly. All
units must be properly grounded.