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Wiring example – Watlow Series 998 User Manual

Page 18

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Wiring Example

Installation and Wiring, Chapter 2

2.6

WATLOW Series 998 User’s Manual

Figure 2.6 -
System Wiring
Examples.

Series 146
Limit Control
146E-1601-3000

High-
Temperature
Light

High-Limit
Mechanical
Control

Fuse

Mercury

Relay

Humidify

Dehumidify

Earthground

Fuse

L1

L2
L1
L2

12
13
14
15
16
17
18
19
20

8
9

10

21 22 11

Coil

1

2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17

C NO NC

Reset

L2

L2

L1

L2

L1

L2

Heater

Cooling
Fan

Wet Bulb

RTD Sensor

Dry Temp

RTD Sensor

Limit Sensor

Environmental

Chamber

ç

WARNING:
To avoid potential
electric shock, use
National Electric
Code (NEC) safety
practices when
wiring and connect-
ing this unit to a
power source and
to electrical sensors
or peripheral
devices. Failure to
do so could result
in injury or death.

ç

CAUTION:
To avoid damage to
property and equip-
ment, use National
Electric Code (NEC)
standard wiring
practices to install
and operate the
series 998. Failure
to do so could
result in such dam-
age.