Carrier PHJ4 - A05385; Fig. 9 - Power Connection to Heater; 1. Make sure all disconnects are still open and tagged out as required previously.; 2. Mark the main unit nameplate with an “X” for the electric heater size being installed. Refer to the electrical data marked with an “X” on the nameplate for wire and maximum over current protection sizing.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
8
A05385
Fig. 9 – Power Connection to Heater
Single Point Electrical Connection
NOTE: All electrical connections, wire sizes and type of conduit shall
meet the National Electric Code (NEC) and state and local codes (or
International Electric Code) as applicable.
NOTE: Use minimum 75°C copper wire only.
1. Make sure all disconnects are still open and tagged out as required
previously.
2. Mark the main unit nameplate with an “X” for the electric heater
size being installed. Refer to the electrical data marked with an “X”
on the nameplate for wire and maximum over current protection
sizing.
3. Connect low voltage wires as shown in unit schematic diagrams
found on the base unit installation instructions. There connections
must be made in the 24v barrier section inside the unit panel (See
Fig. 10 or Fig. 11).
4. Insert field power line through the Electrical Panel hole (see Fig. 10
or Fig. 11) and connect to electric heater as shown in their
respective wiring diagram. Electrical heaters with factory installed
circuit breakers must have their field lines connected to the breaker
block lugs and electric heater without factory installed circuit
breakers must have their field lines connected to the heater leads
using wire nuts. Ground electrical equipment in the appropriate
locations.
IMPORTANT: Heaters with factory installed circuit breakers may be
installed on a branch circuit protected by either a fuse or circuit breaker.
For all other heaters, the branch circuit must be protected by a fuse or
circuit breaker supplied by others.
5. Connect black and yellow stripped wires from heater to the unit
compressor contactor leads using supplied wire nuts according to
their heater wiring diagram.
NOTE: Dress wires with wire ties provided. Separate all wires from
incoming power leads.
6. Close control box access panel.
Dual Point Heater Installation
NOTE: Complete single point heater installation procedures before
completing the following steps.
1. Open all electrical disconnects and install lockout tag before
beginning any installation or service work.
2. Remove Control Box Access Panel (see Fig. 1), check for clearance
on the inside of control box, and remove a 7/8-in knockout hole on
the Electrical Panel for second power line.
3. Attach warning and rating labels in the selected location (see
Fig. 1).
4. Mark the main unit nameplate with an “X” next to the accessory
heater “none”. Mark the dual point rating label installed at step 3
with an “X” for the electrical heater size being installed. Refer to
the electrical data marked with an “X” on each nameplate for wire
and maximum over current protection sizing.
5. Remove unit power wiring line connection from heater to unit
contactor and compressor leads a s shown in heater wiring diagram.
these are the stripped end wires black and yellow, with opened
ends.
Dual Point Electrical Connection
NOTE: All electrical connections, wire sizes and type of conduit shall
meet the national Electric Code (NEC) and state and local codes (or
International Electric Code) as applicable.
NOTE: Use a minimum 75°C copper wire only.
1. Make sure all disconnects are still open and tagged out as required
previously.
2. Connect low voltage wires as shown in unit schematic diagrams
found on base unit installation instructions. These connections must
be made in the 24v barrier section inside the unit panel (see Fig. 12
or Fig. 13).
3. Insert first field power line through the Electrical Panel bottom hole
(see Fig. 12 or Fig. 13) and connect to electric heater as shown in
their respective wiring diagram found on the heater accessory kit.
Electrical heaters with factory installed circuit breakers must have
their field lines connected to the breaker block lugs and electric
heater without factory installed circuit breakers must have their
field lines connected to the heater leads using wire nuts. Ground
electrical equipment in the appropriate locations.
IMPORTANT: Heaters with factory installed circuit breakers may be
installed on a branch circuit protected by either a fuse or circuit breaker.
HEATER
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IES