Cable Preparation; Wiring Procedure; Wiring Method; Connection Diagrams - Rheem RHMV4821SNACJA Manual De Instalación

■ How to connect wiring to the terminal
Caution when wiring cable
• When stripping off the coating of a lead wire, always use a special tool such as a wire
stripper. If there is no special tool available, carefully strip the coating with a knife etc.
(1) Use ring terminals with insulating sleeves as shown in the fi gure below to connect
to the terminal block.
(2) Securely clamp the ring terminals to the wires using an appropriate tool so that the
wires do not come loose.
Strip : 3/8 in (10 mm)
(3) Use the specifi ed wires, connect them securely, and fasten them so that there is no
stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a
screwdriver that is too small, otherwise, the screw heads may be damaged and
prevent the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
Screw with special washer
Ring terminal
Wire
Terminal blocks
(6) Refer to the following table for the terminal screw tightening torques.
Tightening torque [lbs·in (N·m)]
M4 screw
M5 screw

3.12.3. Wiring method

■ Connection diagrams

When connecting the power supply cable, make sure that the phase of the power
supply matches with the phase of the terminal board. If the phases do not match, the
compressor will rotate in reverse and will not be able to compress.
Indoor unit
Terminal
DISCONNECT
SWITCH
(Locally
procured)
3
2
1
Indoor unit terminal block
Connection cable
NOTE: Factory installed protective inline fuses for indoor units' conductors are installed on
the Power Supply PCB.
En-10
9374995677-02_IM.indb 10 9374995677-02_IM.indb 10
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Wire
10.6 to 15.9 (1.2 to 1.8)
17.7 to 26.5 (2.0 to 3.0)
CAUTION
Outdoor unit
Terminal
Earthing
(grounding) line
L2
Control line
L1
3
2
1
(Inter Unit)
Power line
Outdoor unit terminal block
1 2 3 L1 L2
Power supply cable

■ Cable preparation

Keep the earth (ground) wire longer than the other wires.
NOTE: When using a sealed cable
Earth wire

■ Wiring procedure

• Remove the service panel. And connect the cable to the terminal in accordance with the
terminal name plate.
• Use a ring terminal to connect the electric cables to the power supply terminal board.
• Keep the earth cable longer than the other cables.
• After connecting the electric cable, secure them with a cable clamp.
• Connect the cable without applying excessive tension.
• Use the specified cable type and connect the cable securely.
Secure with a cable clamp as shown in the following figure.
(Ring terminal)
Connection cable
Conduit (connection cable)
Power supply cable
and connection cable
(Ring terminal)
Power supply cable
Cable tie with clip
(Outdoor unit attached)
Conduit (power supply cable)
12/9/2020 3:41:48 PM 12/9/2020 3:41:48 PM