Power Connection for 2900, 3900 and 5800 Series Zonelines
All 2900, 3900, and 5800 Series Zonelines are equipped with universal heaters allowing chassis installation flexibility. The Zoneline® units are connected to the building power supply by a unique power connection kit. By utilizing a separate universal power connection (UPC) kit, each unit is capable of providing various outputs of electric resistance heat to more closely meet the heating requirements of the particular room, thereby increasing the installation flexibility of the particular chassis. This power connection kit is the only means of supplying power to the Zoneline chassis. The appropriate
kit is determined by the voltage, the means of electrical connection, either line cord connected or permanently connected, and the desired resistance heat output that may be supported by the branch circuit.
230/208-Volt Line-Cord Connected Units
Line Cord Kits consist of a self-aligning nine-pin molded connector that plugs into a mating connector on the Zoneline chassis and insulated line cord with an electrical plug on the end. The configuration of the electrical plug conforms to NEC standards for the circuit amperage and the position of the wires in the nine-pin connector determines the heater wattage and current requirements when it is plugged into the Zoneline chassis.
The power connection kit is selected by the amperage of the circuit where it will be installed. Each line cord kit has an integral Leakage Current Detection and Interruption (LCDI) or Arc Fault Current Interrupter (AFCI) device as required by the National Electrical Code (NEC) and Underwriters Laboratory (UL) for line-cord connected air conditioners manufactured on or after August 1, 2004. The line-cord power connection kits are shown in the table below.
230/208-Volt Line-Cord Connected Units
| Line Cord | Electric | Electric | Electric | Min. Circuit |
| Heat | Heater | Heat | Protection |
| Kit |
| BTUH | Watts | Amps | (Amps) |
| |
| | | | | |
| RAK3153 | 8600/7100 | 2550/2090 | 11.6/10.6 | 15 |
| RAK3203 | 11700/9600 | 3450/2820 | 15.5/14.2 | 20 |
| RAK3303 | 17000/13900 | 5000/4090 | 22.4/20.4 | 30 |
Electric Heat Amps include electric heater and fan motor current draw.
230/208-Volt — Permanently Connected Units
Permanently connected units do not require the LCDI or AFCI device. Permanent connection is usually made through the use of a sub-base. Each 230/208-volt sub-base consists of a sub-base with appropriate receptacle for minimum circuit amperage, a chaseway to route power connector from the sub-base to the chassis, wiring to connect the sub-base
to building wiring and a short-line cord with a self-aligning nine-pin connector to connect to chassis and plug into the receptacle in the sub-base. Permanent, or direct wired, installation of a 230/208-volt unit requires a junction box kit, RAK4002A, which attaches to the chassis to form an enclosed junction box.
The short sub-base line cord may not be used without the sub-base.
For 2900 and 3900 Series 230/208-volt units where a permanent installation using flexible conduit is desired, the RAK4002A forms an enclosed junction box on the chassis. The RAK4002A has a 7/8" diameter hole to allow conduit to be connected to the junction box. For direct connection, purchase and install the appropriate Universal Power Supply Kit (also referred to as the Direct Connection Kit below) that matches the ampacity of the building circuit connected to the unit. This nine pin connector with three 7" long conductor wires is used for direct connections to the building wiring inside a direct connect junction box. These wires are then connected to the building wiring by field-supplied connectors.
For 5800 Series 230/208-volt units, the permanent installation using flexible conduit procedure is the same as for the 2800 and 3800 Series units, except the junction box kit is RAK4002B.
230/208 Volt Sub-Base and Direct Connected Units
| Direct | Electric | Electric | Electric | Min. Circuit |
Sub-Base | Connection | Heat | Heater | Heat | Protection |
| Kit | BTUH | Watts | Amps | (Amps) |
| | | | | |
RAK204D15P | RAK4157 | 8600/7100 | 2550/2090 | 11.6/10.6 | 15 |
RAK204D20P | RAK4207 | 11700/9600 | 3450/2820 | 15.5/14.2 | 20 |
RAK204D30P | RAK4307 | 17000/13900 | 5000/4090 | 22.4/20.4 | 30 |
Electric Heat Amps include electric heater and fan motor current draw.
265- or 277-Volt Unit Installation — Permanently Connected Units
National Electric Code (Article 440 Section G) requires permanent connection for units connected to power sources over 250 volts; therefore these units must be permanently connected (direct wired) with field-supplied connectors. Units connected using a sub-base meet the requirement for permanent connection since all wiring is internal wiring between the sub-base and the chassis.
Since 265-volt units may not be line cord connected, an LCDI device is not required.
265 Volt Sub-Base and Direct Connected Units
| Power | Direct | Electric | Electric | Electric | Min. Circuit |
Sub-Base | Connection | Connection | Heat | Heater | Heat | Protection |
| Kit | Kit | BTUH | Watts | Amps | (Amps) |
RAK204E15 | RAK5172 | RAK5157 | 8600 | 2550 | 10.3 | 15 |
RAK204E20 | RAK5202 | RAK5207 | 11700 | 3450 | 13.8 | 20 |
RAK204E30 | RAK5302 | RAK5307 | 17000 | 5000 | 19.6 | 30 |
Electric Heat Amps include electric heater and fan motor current draw.
Each 265-volt sub-base kit consists of a sub-base with appropriate receptacle for minimum circuit amperage, a chaseway to route the power connector from the sub-base to the chassis and wiring to connect the sub-base to the building wiring.
The 265-volt power connection kit must be ordered separately.
All wiring must conform to local electrical regulations and codes.
