Rheem RLKN-B073 Series, Installation Instructions Manual, Page: 15 / 28

3. Splice copper wire pigtails to aluminum wire with U.L. recognized connectors for
copper-aluminum splices. Follow these instructions very carefully to make a
positive and lasting connection;
a. Strip insulation from aluminum conductor.
b. Coat the stripped end of the aluminum wire with the recommended inhibitor
and wire brush aluminum surface through inhibitor. Inhibitors: Brundy, Pentex
“A”; Alcoa, No. 2EJC; T&B KPOR Shield.
c. Clean and recoat aluminum conductor with inhibitor.
d. Make the splice using the above listed wire nuts or split bolt connectors.
e. Coat the entire connection with inhibitor and wrap with electrical insulating
tape.
WARRANTY MAY NOT APPLY IF CONNECTIONS ARE NOT MADE PER INSTRUC-
TIONS
C. CONTROL WIRING (Class II)
1. Low voltage wiring should not be run in conduit with power wiring.
2. Control wiring is routed through the 7/8" hole adjacent to the compressor access
panel. See Figure 13. Use a minimum #18 AWG thermostat wire. For wire
lengths exceeding 50', use #16 AWG thermostat wire. The low voltage wires are
connected to the unit pigtails which are supplied with the unit in the low voltage
connection box located below the unit control box.
3. Figure 13 shows representative low voltage connection diagrams. Read your
thermostat installation instructions for any special requirements for your specific
thermostat.
NOTE — Units installed in Canada require that an outdoor thermostat (30,000
min. cycles of endurance) be installed and be wired with C.E.C. Class I wiring.
D. INTERNAL WIRING
1. A diagram of the internal wiring of this unit is located on the inside of the com-
pressor access panel. If any of the original wire as supplied with the appliance
must be replaced, the wire gauge and insulation must be the same as original
wiring.
E. GROUNDING
GROUNDING MAY BE ACCOMPLISHED BY GROUNDING THE POWER LINE
CONDUIT TO THE UNIT. MAKE SURE THE CONDUIT NUT LOCKING TEETH
HAVE PIERCED THE INSULATING PAINT FILM OF THE SIDE PANEL.
ThE uNIT MuST BE pERMANENTLy
gROuNDED. A gROuNDINg Lug IS
pROVIDED IN ThE ELECTRIC hEAT
KIT ACCESS AREA fOR A gROuND
wIRE. fAILuRE TO gROuND ThIS
uNIT CAN RESuLT IN fIRE OR ELEC-
TRICAL ShOCK CAuSINg pROpER-
Ty DAMAgE, SEVERE pERSONAL IN -
juRy OR DEATh.
s
WARNING
!
fIguRE 13
LOw VOLTAgE CONNECTIONS DIAgRAMS
STANDARD CONTROL wIRINg
R
W
G
Y
Y2
C
RED
BLACK
GRAY
YELLOW
ORANGE
BROWN
THERMOSTAT
SUB-BASE
UNIT CONTROLS
WIRE PIGTAILS
15