Electrical Connections - Toshiba CARRIER RAV-SP300AT2-UL Installation Manual

Outdoor Unit
7

ELECTRICAL CONNECTIONS

WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
• The unit cabinet must have an uninterrupted or
unbroken ground to minimize personal injury if an
electrical fault should occur. The ground may consist
of electrical wire or metal conduit when installed in
accordance with existing electrical codes.
• Before performing service or maintenance, be sure
main power switch is turned OFF.
CAUTION
All wiring and connections must comply with NEC, CEC,
local codes.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage
or improper operation.
• Unit failure as a result of operation on improper line
voltage or excessive phase imbalance constitutes
abuse and may cause damage to electrical
components.
• Wrong wiring may cause a burn-out of some electrical
parts.
• Do not damage or scratch the conductive core or inner
insulator of the power and inter-connecting wires
when peeling them.
Electrical control box
Field wiring
terminal
blocks
Banding
band
Front pipe cover
Front panel
Conduit connection
holes
Piping knockout
– 14 –
Field wiring
The dashed lines show field wiring.
(Field power
supply)
L
Input
1
power
L
2
208/230 V~,
60 Hz
circuit breaker
Outdoor unit
ground
• System interconnection wire size must be AWG12.
• Breaker must have a capacity specified in the
following table.
• All wiring must comply with local electric codes and
NEC (National Electric Code) or CEC (Canadian
Electric Code).
Model RAV-
Power supply
MCA
MOCP (MAX Fuse/CB)
Breaker
System interconnection wires
MCA = Minimum Circuit Amps
MOCP =Maximum Over Protection Device Amps.
• Connect the system interconnection (indoor to
outdoor) wires to the identical terminal numbers on
the terminal block of each unit.
Incorrect connection may cause a failure.
1. With the front panel removed the electrical control
box is exposed at the top right corner of the unit.
2. Terminate the field wiring conduit (if used) at the
conduit connection holes provided.
3. Route the field power wires and the system
interconnection wires as shown on the following
pages. Terminate the wires at field wiring terminal
blocks located immediately below the electrical
control box.
Installation Manual
(System
interconnection wires)
L L
1 1
L
L
2
2
Remote
S
S
controller
Indoor unit
SP420
208/230 V, 60 Hz
24 A
40 A
25 A
AWG12
EN
14-EN