Specifications

Simplex, Inc., 5300 Rising Moon Road, Springﬁ eld, IL 62711-6228 • 217-483-1600 • Fax 217-483-1616

LOAD BANK MANUAL • Merlin 150-300 Load Bank • page 9 of 15

LOAD OVER VOLTAGE

INDICATED

1. Load Voltage Selector switch

incorrectly positioned

COOLING FAILURE

INDICATED

1. Restriction of air

(intake or exhaust)

2. Fan pressure switch inoperative

3. Overtemperature sensor failure

4. Alarm Reset pushbutton not engaged

TEST METERS DO NOT

OPERATE PROPERLY

1. Meter voltage switch failure

2. Meter multiplier resistor inoperative

3. Improper positioning of meter volt-

age selector switch

4. Current transformer or current

transformer wiring failure

5. Test meter failure

SOME LOAD STEPS

CANNOT BE ENERGIZED

1. Inoperative load step switches

2. Inoperative load step contactors

DRAWINGS AND

PARTS LIST

The drawings included in this manual

are the most accurate source of part

numbers for your Load Bank. When

ordering replacement parts for Simplex

Load Banks, always consult the Parts

Legend Drawing. When contacting the

Simplex Service Department always

have your work order and drawing

number ready for reference. The Load

Bank Speciﬁ cations Sheet in the front

of this manual lists all of the drawings

included in this manual. The Work Order

Number and the Drawing Numbers are

also located on each drawing legend.

A typical drawing legend and parts list

is illustrated below.