Breezaire WKSL SERIES Installation Instructions Manual page 5

Plumbing the system: The two units are connected by a ¼ inch "liquid line" copper tube, and a
3
/ inch "suction line" copper tube. The line-set should have a maximum calculated length no
8
longer than 50 ft. for each line. (Note: Enclose the suction line in a flexible insulation jacket to
prevent condensation from forming on the tube.) Reduce the line-set length by 10 feet for every
hard 90° bend.
Remove the cores from the access valves before soldering tubing to the valves. Caution: hold
charging valve assembly body with an appropriate wrench when removing or tightening the cap or
opening and closing the valve. The sight glass and strainer/dryer are separate pieces supplied with
the unit. The sight glass and strainer/dryer should be connected to the condensing unit's liquid
line. If the condensing unit is mounted higher level than the fan/coil unit, a P-trap must be installed
in the suction line at the evaporator discharge.
The fan /coil unit is equipped with a ½ inch O.D. plastic fitting for removal of condensate. Connect
a ½ inch I.D. vinyl hose to the fitting and route the hose to an approved drain. Ensure the ½ inch
I.D. vinyl hose has an air break installed with in 2 to 10 inches from unit connection. A condensate
pump is required if the vinyl drain hose has any vertical rise, significant horizontal or near
horizontal run.
Wiring the system: Wire the system in accordance with local code and the wiring diagrams.
Electrical connections are made to the terminal strip in the fan/coil and the relay in the condensing
unit. Both the fan/coil and condensing unit must be connected to properly grounded electrical
sources of adequate capacity (see unit specification for unit electrical requirements).
FAN/COIL WIRING
SENTRY III
LINE 1
LINE2/COM
GND
TRANSFORMER
Top Connections
LOW VOLTAGE
WKSL 05/11 PG5
CONDENSER WIRING
RELAY
LINE 1
LINE2/COM
COMP
GND
INSTALLER WIRED
B = BLACK WIRE
W = WHITE WIRE
G = GREEN WIRE
LV1= LOW VOLTAGE COLORED WIRE
LV2= LOW VOLTAGE COLORED WIRE
FACTORY WIRED