User`s manual

sightfi'om,theunit,Refertotheunitratingplate%r maximm_l
fhseicircnit breaker size and mininmm circuit amps (ampacity) for
wire sizing. See Tables 4 and 5 fbr electrical data.
The fieldosupplied disconnect switch box may be mounted on the
unit over the highovoltage inlet hole when the standard power and
low-voltage entIy points are used. See Fig. 2 & 3 fbr acceptable
location.
See unit wiring label and Fig. 10 fbr refkrence when making high
voltage connections. Proceed as follows to complete the laiglao
voltage connections to the unit.
Single phase units:
1. Run the high-voltage (L1, L2) and ground leads into the
contwl box.
2. Connect ground lead to chassis ground connection.
3. Connect LI to pressure tug connection 11 of the compressor
contactor.
4. Connect L2 to pressure tug connection 23 of the compressor
contactor
Three phase units:
1_ Run the highovoltage (L!, L2, L3) and ground leads into the
control box.
2_ (onnect ground lead to chassis ground connection.
3_ Locate the black and yellow wires connected to the lines side
of the contactor.
4_ (onnect field L1 to black wire on connection 11 of the
compressor contactor
5. Connect field wire L2 to yellow wire on connection 13 of the
compressor contactor
6. (onnect field wire L3 to Blue wire fiom compressor.
SPE(IAL PROCEDI_ RES FOR 208-V OPERATION
Make sure that the power supply to the unit is switched OFF
and lockout tag installed before making any wiring changes.
Electlical shock can cause serious injury or death.
CONTROL VOLTAGE ( ONNE(TIONS
NOTE: Do not use any type of power-stealing thermostat Unit
control problems may result.
Use no. 18 American Wire Gage (AWG) colorocoded, insulated
(35 C minimum) wires to make the control voltage connections
between the thermostat and the unit_ If the thermostat is located
more than 100 if. f?om the unit (as measured along the control
voltage wires), use no. 16 AWG color-coded, insulated (35 C
minimum) wires.
STANDARD CONNE( TION
Remove knockout hole located in the electlic heat panel adiacent
to the contlol access panel. See Fig 2 & 3. Remove the rubber
grommet fi'om the installer's packet (included with unit) and install
grommet in the knockout opening Provide a drip loop before
running wire through panel.
Run the towovoltage leads from the thermostat, through the inlet
hole, and into unit tow-voltage splice box.
Locate five 18-gage wires leaving control box. These low-voltage
connection leads can be identified by the colors red, green, yellow,
brown, and white (See Fig. 10). Ensure the leads are tong enough
to be routed into the low-voltage splice box (located below right
side of control box). Stlipped yellow wire is located in connection
10
box. Route leads through hole in bottom of contlol box and make
tow-voltage connections (See Fig. 10). Secure all cut wires, so that
they do not interfere with operation of unit
TRANSFORMER PROTECTION
The tran.iJbr_er is of the energy-limiting type. It is set to
withstand a 30osecond overload or shorted secondary condition.
PREoSTARToUP
Failure to observe the fbllowing warnings could result in
serious personal injuw:
1. Follow recognized safk w practices and wear protective
goggles when checking or servicing refi'igerant system.
2. Do not operate compressor or provide any electlic power to
unit unless compressor terminal cover is in place and
secured.
3. Do not remove compressor terminal cover until all electrio
cal sources are disconnected.
4. Relieve and recover all refrigerant ti'om system before
touching or disturbing anything inside terminal box if
refrigerant leak is suspected around compressor terminals.
5. Never attempt to repair soldered connection while refrigo
erant system is under pressure.
6. Do not use torch to remove any component. System
contains oil and refrigerant under pressure. To remove a
component, wear protective goggles and proceed as fblo
lows:
a. Shut off electrical power to unit.
b. Relieve and reclaim all refrigerant fi'om system using
both high- and lowopressure ports
c (Jut component connecting tubing with robing cutter and
remove component fiom unit.
d. Carefully unsweat remaining tubing stubs when neceso
sa W. Oil can ignite when exposed to torch flame.
Proceed as %llows to inspect and prepare the unit %r initial
startup:
1. Remove access panel
2. Read and follow instructions on all WARNING, CAUTION,
and INFORMATION labels attached to, or shipped with, unit.
3. Make the fbllowing inspections:
a Inspect for shipping and handling damages such as broken
lines, loose parts, disconnected wires, etc.
b. Inspect fbr oil at all refi'igerant robing connections and on
unit base Detecting oil generally indicates a refi'igerant
leak Leak test all refi'igerant robing connections using
electronic leak detector, halide torch, or liquid-soap solu-
tion. If a refrigerant leak is detected, see Check fbr
Refrigerant Leaks section.
c Inspect all field= and fitctoryowiring connections Be sure
that connections are completed and tight
d. Ensure electrical wiring does not contact refrigerant robes
or sharp metal edges
e Inspect coil fins If damaged during shipping and handling,
carefhlly straighten fins with a fin comb.
Verif}' the following conditions:
a Make sure that condenser-fan blade is correctly positioned
in fan orifice Leading edge of condenser-fan blade should
be 1/2 in. maximum from fan orifice (See Fig 11).
b. Make sure that air filter(s) is in place.
c Make sure that condensate &ain trap is I_lled with water to
ensure proper &ainage