Electrical Requirement; How To Connect The Wire To The Terminals; Connection Diagrams - Rheem Classic Plus Série Manuel D'installation

5. 2. Electrical requirement

Be sure to install a breaker of the specifi ed capacity.
Regulation of cables and breaker differs from each locality, refer in accordance with
local rules.
Voltage rating
Operating range
Cable Cable size
18 type: 14AWG
Power supply cable
24 type: 12AWG
Connection cable
1) Selected sample: Select the correct cable type and size according to the country or
region's regulations.
Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the
wire diameter when the wire length is long.
Breaker
Circuit breaker
Earth leakage breaker
2) Select the appropriate breaker of the described specifi cation according to the national
or regional standards.
3) Select the breaker that enough load current can pass through it.

5. 3. How to connect the wire to the terminals

• 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.
Earth wire
How to connect wiring to the terminal
Caution when wiring cable
(1) Use ring type terminals with insulating sleeves as shown in the fi gure to connect to
the terminal block.
(2) Securely clamp the ring type terminals to the wires using an appropriate tool so that
the wires do not come loose.
(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.
(6) See the table below for the terminal screw tightening torques.
Strip : 3/8 in. (10 mm)
Screw with special washer
Ring type terminal
Wire
Terminal blocks
Tightening torque [lbf·in (N·m)]
M4 screw
En-9
CAUTION
1Φ 208/230V (60Hz)
187-264V
1)
* Remarks
2 cable + Ground, 1 Ø 208/230V
14AWG 3 cable + Ground, 1 Ø 208/230V
Specifi cation
*
18 type: 15(A)
24 type: 20(A)
Leakage current : 30mA 0.1sec or less *
Power supply cable
and connection cable
Ring type terminal
Sleeve
Screw with special washer
Ring type
terminal
Wire
10.6 to 15.9 (1.2 to 1.8)

5. 4. Connection diagrams

24 type
INDOOR
INDOOR UNIT A
TERMINAL
1
2
3
G
INDOOR UNIT B
TERMINAL
1
2
3
G
INDOOR UNIT C
2)
TERMINAL
1
2
3)
3
G
18 type
INDOOR
INDOOR UNIT A
TERMINAL
1
2
3
G
INDOOR UNIT B
TERMINAL
1
2
3
G
Disconnect switch and for over current protection given in the table below is to be
installed between the indoor unit and the outdoor unit.
Disconnect switch
Be sure to refer the above diagram and do correct fi eld wiring.
Wrong wiring causes malfunction of the unit.
Check local electrical codes and also any specifi c wiring instructions or limitation.
(Inter-unit)
Power lines
208/230 V
208/230 V
208/230 V
Grounding
DISCONNECT SWITCH
line
(FIELD SUPPLY)
208/230 V
208/230 V
208/230 V
Grounding
DISCONNECT SWITCH
line
(FIELD SUPPLY)
208/230 V
208/230 V
208/230 V
Grounding
DISCONNECT SWITCH
(FIELD SUPPLY) line
(Inter-unit)
Power lines
208/230 V
208/230 V
208/230 V
Grounding
DISCONNECT SWITCH
line
(FIELD SUPPLY)
208/230 V
208/230 V
208/230 V
Grounding
DISCONNECT SWITCH
line
(FIELD SUPPLY)
WARNING
15A
CAUTION
OUTSIDE
OUTDOOR UNIT
TERMINAL
UNIT A
1
2
3
G
UNIT B
1
2
3
G
UNIT C
1
2
3
G
L1
L2
G
OUTSIDE
OUTDOOR UNIT
TERMINAL
UNIT A
1
2
3
G
UNIT B
1
2
3
G
L1
L2
G