Samsung AC BNZDCH Series Installation Manual page 22

Wiring Work
Single circuit line wiring connections
If an accessory heat kit is installed, power must enter the unit on the top or the top-left side of the unit as
shown below (A).
CAUTION
1. Before wiring work, you must turn off all power source.
2. Only copper power cables should be used.
3. Remove the blower and control box access panel (door).
4. Install the cable connectors on the 7/8" diameter holes on
the right side of the control box.
5. Insert the wires through the holes in the casing and through
the cable connectors.
6. Connect the black supply wire to the L1[1(L)] high voltage
connection terminal with compressed ring terminals.
7. Connect the white supply wire to the L2[2(N)] high voltage
connection terminal with compressed ring terminals.
8. Connect the green wire to the ground lug near the supply
wire connections with a compressed ring terminal and
tighten the ground screw. Make sure to leave extra slack
in the ground wire to allow service to the unit without
disconnecting the ground wire.
IMPORTANT - All insulation on field wiring must be rated at 140°F (60°C) or higher. Please refer to the wiring diagrams on
the air handler or the tables in this manual for more information.
IMPORTANT - Refer to the NEC National Electrical Code (NFPA 70) or the Canadian Electrical Code, Part I (CSA C22.1) and
local codes for wiring material requirements.
Power supply wiring with accessory electric heat kit
1. Before wiring work, you must turn off all power source.
2. Only copper power cables should be used.
3. Remove the blower and control box access panel (door).
4. Install the cable connectors on the 7/8" diameter holes on
the left side of the control box.
5. Connect the included power pigtail leads with ring
connectors (included with heat kit) to 1(L) and 2(N)
terminals located on the right side of the control box.
6. Route the power pigtail leads through the control box
opening pictured below and route to the left side of the
control box for connection to the heat breakers in a later
step.
22 English
DB68-11271A-02_IM_CAC Universal AHU Indoor_AA_EN_.indd 22
A
A
C
A
Left side
A - Power conduit connection opening (must use when
installing accessory electric heat kit).
B - Power conduit connection opening (do not use when
installing accessory electric heat kit).
C - Communication wire conduit connection opening
Power conduit connection openings
B
Right side
2022-09-15 오전 9:53:19