XIII. ELECTRICAL WIRING
Field wiring must comply with the National Electrical Code* and local ordinances that
may apply.
*C.E.C. in Canada
A. POWER WIRING
1. It is important that proper electrical power is available at the unit. Voltage should
not vary more than 10% from that stamped on the unit rating plate. On three
phase units, phases must be balanced within 3%.
2. Install a branch circuit disconnect within sight of the unit and of adequate size.
3. For branch circuit wiring (main power supply to unit disconnect), the minimum
wire size can be determined using the circuit ampacity found on the unit name-
plate.
4. This unit incorporates single point electrical connection for unit and electric heat
accessory.
5. Power wiring must be run in grounded rain-tight conduit. Connect the power field
wiring as follows:
a. NO ELECTRIC HEAT - Connect the field wires directly to the contactor pigtail
in the electric heat access area. Connect ground wire to ground lug.
b. WITH ELECTRIC HEAT - Connect the field wires to the terminal block on the
electric heater kit in the electric heat access area. Connect the unit contactor
pigtails to the appropriate fuse block on the heater kit. Connect the ground
wire to the ground lug on the heater kit.
NOTE:
For field installation of a heater kit, follow the instructions provided with the
heater kit.
6. The pigtail wires in the electric heat access area are factory wired to the contac-
tor in the control box.
7. DO NOT connect aluminum field wires to electric heat kit power input terminals.
B. SPECIAL INSTRUCTIONS FOR POWER WIRING WITH ALUMINUM
CONDUCTORS.
1. Select the equivalent aluminum wire size from the tabulation below:
2. Attach a length (6" or more) of recommended size copper wire to the unit termi-
nals L1 and L3 for single phase, L1, L2, L3 for three phase.
TABLE E. wIRE SIzES
AWG Copper AWG Aluminum Connector Type and Size
Wire Size Wire Size (or equivalent)
#12 #10 T&B Wire Nut PT2
#10 #8 T&B Wire Nut PT3
#8 #6 Ilsco Split Bolt AK-6
#6 #4 Ilsco Split Bolt AK-4
#4 #2 Ilsco Split Bolt AK-2
#3 #1 Ilsco Split Bolt AK-1/0
#2 #0 Ilsco Split Bolt AK-1/0
#1 #00 Ilsco Split Bolt AK-2/0
#0 #000 Ilsco Split Bolt AK-4/0
fIguRE 12
CONDENSATE DRAIN
DO NOT OVERTIghTEN DRAIN fITTINg
14
Содержание RLKN-B073 Series
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