Winco ZTX-RM User Manual

62R-2000B 6/01

ZTX-RM SERIES

40-400 Amps

Zenith Controls

Operation and Maintenance Manual

NOTICE

This product is specially designed for light commercial or residential use only.

This product is not to be used in life-support or other emergency systems.

Table of Contents

Page

How to Remove the Cover ................................................................................................................................................................................................................01

Installation ..........................................................................................................................................................................................................................................................02

Equipment Inspection and Storage ............................................................................................................................................................................

Mounting

..................................................................................................................................................................................................................................................02

Power Connections ........................................................................................................................................................................................................................02

Control Connections....................................................................................................................................................................................................................04

Final Equipment Inspection................................................................................................................................................................................................04

Functional Test....................................................................................................................................................................................................................................

RM4 Control Interface (Optional) ..............................................................................................................................................................................................06

Optional Indicator LED

s/Pushbuttons ..................................................................................................................................................................06

Automatic Transfer Generator Testing (One Time Test)

..........................................................................................................................07

Transfer Generator Testing (Forcing Operation with Keypad) ..............................................................................................................07

LED Diagnostic Flash Codes ................................................................................................................................................................................................07

Automatic Generator Exerciser

......................................................................................................................................................................................

Selecting Exerciser Without Transfer

........................................................................................................................................................................08

Selecting Exerciser With Transfer ................................................................................................................................................................................08

Engine Controller Accessory Board (Optional) ..........................................................................................................................................................09

Oil Pressure Sensor Input ......................................................................................................................................................................................................

Temperature Sensor Input

....................................................................................................................................................................................................

Fuel/Run Contact Output

....................................................................................................................................................................................................09

Start Contact Output....................................................................................................................................................................................................................09

Generator Battery Input ..........................................................................................................................................................................................................

Example Systems

Partial Coverage System

Total Coverage System................................................................................................................................................................................................................10

Typical Diagram ............................................................................................................................................................................................................................................

Power Circuit Schematic

Power Panel Layout

Interconnect Plug

Troubleshooting

Generator Fault Flash Table ................................................................................................................................................................................................13

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GE Zenith Controls 1

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ZTX-RM Operation and Maintenance Manual (62

R-2000)

How to Remove the Cover

Loosen but do not remove four cover screws. Lift cover off the four screws and hang on two screws (2 bottom or 2 right-hand). See Figure i and ii.

This will prevent damage to the cable. The cable may also be disconnected at the controller or keypad.

Figure i

Figure ii

NOTE: Reattach cable before installing cover.

! !

DANGER

HAZARDOUS VOLTAGE

Will shock, burn or cause death. Do not remove cover until ALL power is disconnected.

Re-installation of cover is required after maintenance or service.

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2 GE Zenith Controls

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ZTX-RM Operation and Maintenance Manual (62

R-2000)

Equipment Inspection and Storage

Inspect the transfer switch when received to detect any damage which may have occurred during transit. If damage is found or suspected, file claims with the carrier.

Before installation, store the transfer switch in a clean dry place, protected from dirt and water. Provide ample air circulation and heat to prevent condensation.

Storage Temperature: -30° C to +75° C

(-22° F to +167° F)

Operating Temperature -20° C to +65° C (Ambient): (-4° F to +149° F)

Humidity: 5% to 95% (non-condensing)

Before installation, check the equipment rating nameplate on the transfer switch to verify the correct system voltage.

Example nameplate is shown in Figure 1.

Mounting

Adequate lifting means must be used to mount the transfer switch into place. Enough room should be allowed to open the cabinet door fully for inspection and servicing of the switch per NEC and local codes.

Before drilling conduit entry holes, cover and protect the switch and control panel to prevent dirt and metal fragments from entering the mechanical and electrical components. Failure to do so may result in damage and malfunction of the switch.

Power Connections

This transfer switch is supplied with UL listed solderless screw type terminals. Table 2 (see Page 3) lists the number and sizes of cable lugs supplied for each switch amp rating.

Connect the Load, Generator and Utility conductors to terminals on the transfer switch (see Figure 2, Page 3). Remove surface oxides from cables by cleaning with a wire brush. Verify that all connections are correct. All cable lug connections must be tightened to the proper torque values as shown in Table 1.

DANGER

HAZARDOUS VOLTAGE

(Can Cause Severe Injury or Death)

Turn OFF all power before installation, manual operation or removal of transfer switch or any of its components.

Connecting Engine Start may cause Generator to start. Before connecting, turn Generator OFF.

Installation

Table 1

Tightening Torque for Lugs

Socket Screw Size

Lb.-In. Torque Lb.-Ft.

451/8 4

1005/32 8

1203/16 10

1507/32 12

2001/4 17

2755/16 23

3753/8 31

5001/2 42

Installation must be performed by a licensed electrician and in accordance

with the National Electric Code and all local electrical codes.

Figure 1

SERIAL NUMBER:

TING

:VOLTS -

AMPS -

SYSTEM VOLTS:

MODEL NUMBER:

HZ -

PHASE -

GE Zenith Controls

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GE Zenith Controls 3

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ZTX-RM Operation and Maintenance Manual (62

R-2000)

Install

load

cables

first.

Tip!

Table 2

Screw Type Terminals for External Power Connections

Switch Size

(Amps)

100

150

Utility, Generator and Load Terminals

1 #8 to 3/0 AWG

Cable Per Pole Range of Wire Sizes

1 #8 to 3/0 AWG

Fully Rated Neutral Bar (When Required)

3 #8 to 1/0 AWG

No. of Cables Range of Wire Sizes

3 #8 to 1/0 AWG

3 #8 AWG to 300 MCM

200, 225, 250*

300, 400

1 #6 AWG to 250 MCM

1 #4 AWG to 600 MCM

3 #6 AWG to 300 MCM

3 #4 AWG to 300 MCM

* IEC Rating Only

Installation

(cont’d)

Figure 2 - Power Panel

DANGER

HAZARDOUS VOLTAGE

(Can Cause Severe Injury or Death)

Turn OFF all power before installation, manual operation or removal of transfer switch or any of its components.

Connecting Engine Start may cause Generator to start. Before connecting, turn Generator OFF.

Installation must be performed by a licensed electrician and in accordance

with the National Electric Code and all local electrical codes.

TERMINALS

T1 T2 T3

N1 N3

SWITCH POSITION INDICATOR

UTILITY

TERMINALS

LOAD

OPTIONAL A4 CONTACT

OPERATES WHEN IN

UTILITY

POSITION

Exerciser

CONTROLLER

ENGINE START

OPTIONAL ENGINE CONTROLS OR AIR CONDITION DISCONNECT OR 3 PHASE BOARD

3 AND 4 POLE ONLY

OPTIONAL A3 CONTACT

OPERATES WHEN IN

GENERATOR

GENERATOR TERMINALS

POSITION

T = Load N = Utility E = Generator

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