Mars Air Systems L-2254 - Manual (Page 9)

9
❖ ❖ ❖ ❖ ❖
English L-2254 Installation
Installation Checklist
(Review prior to installation)
Note: Refer to the Elite and Passport I/O manuals
for installation and operation of those digital
controls.
Seawater Cooling System
❑ Speed scoop located as far below the water line and
as close to the keel as possible
❑ Shut off valve (sea cock) and speed scoop properly
sealed and tight
❑ Seawater pump is at least one foot below water line
and securely mounted
❑ Strainer mounted below pump with access to filter
❑ Double/reversed stainless steel hose clamps on all
hose connections
❑ Teflon tape on all threaded connections
❑ Hose runs uphill from speed scoop and sea cock to
strainer, pump and a/c unit, then downhill (if possible)
from a/c unit to overboard discharge
❑ Water flowing freely from overboard discharge while
pump is running
❑ Pump relay panel, if used, must have its own circuit
breaker sized for the pump (20 amp max)
❑ All metal fittings should be bonded
Mounting
❑ Not in engine room or bilge areas, must be sealed
away from exhaust or fumes
❑ Proper spacing allowed around unit
❑ Attached to solid level platform with hold down clips
provided
❑ Condensate drain routed aft and down hill to a sealed
sump (not bilge)
❑ Blower rotated toward supply air grille
Electrical
❑ The wiring diagram is located in the electrical box. If
that diagram is damaged or if you need a copy, please
call Dometic with the unit part number, serial number,
and wiring diagram number, all of which are located on
the unit data plate.
❑ All butt connections on pumps wire tightly crimped and
heat shrunk
❑ AC power source installed and grounded/bonded in
accordance with ABYC standards
❑ Control wires connected to terminal strip with captive
fork or ring terminals
❑ Circuit breakers sized according to specifications on
the data plate label
❑ Digital display cable is connected at both ends
❑ Pump Relay Panel (if used) has a dedicated circuit
breaker sized for the pump but not to exceed 20 amps
maximum.
Grilles and Ducting
❑ Supply air grille mounted as high as possible
❑ Return air grille mounted as low and as close to the
a/c unit as possible
❑ Return air grille mounted away from bilge vapors or
exhaust fumes
❑ Ducting is pulled taut, straight, smooth and properly
connected with no excess