GE RAK4157, RAK4207, RAK4307 Installation Instructions

IMPORTANT NOTES

• This kit is for use with 230/208 Volt GE Zoneline

units only.

• This unit must be properly grounded.

• The electrical rating marked on the installed Zoneline

and power supply kit must be the same as the supply
branch circuit.

• Aluminum building wiring may present special

problems—consult a qualified electrician.

• All wiring, including installation of the receptacle,

must be in accordance with the NEC and local codes,
ordinances and regulations.

• This power supply kit provides for connection of

1/2″ trade size electrical conduit and provision for
connection to a wiring system in accordance with the
National Electrical Code. ANSI/NFPA No. 70-1996 or
latest edition.

• Use ONLY the wiring size recommended for single

outlet branch circuit.

• Proper current protection is the responsibility of

the owner.

FOR 230/208 VOLT DIRECT CONNECT APPLICATIONS ONLY

IMPORTANT: Some local electrical codes and customer
requirements require PTAC/PTHP units to be direct
connected to building wiring.

These models must be installed using the appropriate
GE power supply kit for the branch circuit amperage
and the electrical resistance heater wattage desired.
See the POWER CONNECTION CHART to confirm the
appropriate kit.

POWER CONNECTION CHART

It is the responsibility of the installer to ensure the
connection of components is done in accordance with
electrical codes.

Direct connection to branch circuit wiring inside the
provided junction box must be made by connecting
as follows.

Recommended branch circuit wire sizes*

Nameplate

maximum circuit AWG wire

breaker size size**

15A 14
20A 12
30A 10

AWG—American Wire Gauge
* Single circuit breaker from main box
** Based on copper wire, single-insulated conductor at 60°C

GE

230/280 Volt

Power Heater
Supply Wattage

Kit Circuit Protective Device @ 230/208 Volts

RAK4157 15-Amp Time-Delay Fuse or Breaker 2.55 KW/2.09 KW
RAK4207 20-Amp Time-Delay Fuse or Breaker 3.45 KW/2.82 KW
RAK4307 30-Amp Time-Delay Fuse or Breaker 5.00 KW/4.10 KW

CAUTION:

Disconnect the electrical power

supply before wiring connections.

Installation instructions

RAK4157, RAK4207,

for your new

RAK4307

Power Supply Kit for
Direct Connection

Before you begin – Read these instructions completely and carefully.
IMPORTANT – OBSERVE ALL GOVERNING CODES AND ORDINANCES.
Note to Installer – Be sure to leave these instructions with the Consumer.
Note to Consumer – Keep these instructions with your Owner’s Manual for future reference.

TOOLS NEEDED

• Wire cutter • Adjustable wrench

• Phillips head screwdriver

Pub No. 31-61403 11-06 JR

Printed in the United States

NOTE: Use copper conductors only.

2800 & 3800 SERIES – DIRECT ELECTRICAL CONNECTION

3. INSTALL JUNCTION BOX

• Install the junction box by engaging the left tabs on the

lower right face of the unit, aligning the screw holes at
the top and bottom and driving the two screws until
secure. Be sure that all wire leads are inside the box and
not pinched between the box and the unit. The green
insulated ground wire from the unit MUST be connected
to the branch circuit ground wire.

Make all wire connections by using appropriate UL-listed
electrical connectors and techniques (black to black,
white to white and green to green).

4.

INSTALL JUNCTION BOX COVER

1. Carefully tuck all wires and connections back
inside the junction box. Be sure there are no loose
connections or stray uninsulated wires exposed.

2. Place the junction box cover in place. Replace the two
screws removed earlier and tighten securely.

3. Replace the Zoneline front cabinet.

2. ATTACH CONDUIT

1. Use the round knockout at the bottom of the junction
box to attach conduit coming from the branch circuit.
Remove the knockout, attach the conduit and bring
wires into the junction box. Leave 6″ of wire free at the
end of the conduit to allow connections to be made.

2. If a fuse and fuseholder are to be used, the
knockout at the top of the box is for mounting a Buss
Fuseholder. Be sure the fuse and fuseholder are of
the same rating as the branch circuit. Leadwires at the
fuse can be either soldered in place or attached using
UL-listed 1/4″ female (receptacle) crimp connectors.

Conduit

1. CONNECT THE CORDSET

Plug the connector, provided in the Direct Connect Kit, fully
into place in the unit mating connector. Be sure the locking
tabs at the sides are engaged.

Connector

Order separately the RAK4002A Kit. This kit must be used in
this application.

2

Installation Instructions