Watlow Series 988LF - Manual (Page 15)

WATLOW Series 988LF User’s Manual 2.5 Installation and Wiring, Chapter 2
Wiring Example
Figure 2.5 -
System wiring
example.
988L-10CA-AARR
rear view
(+)
10
9
22 21
12
13
(-)
L1
L2
(-)
120 V Å (ac)
fuse
Series 146
limit control
146D-1J1F-1100
heater
process sensor limit sensor
optional
normally open
momentary switch
red
high limit
mechanical
contactor
earth ground
(+)
SSR-240-10A-DC1
solid state relay
high
temp limit
light
coil
11
3 1
2 4
10 11 12 13 14 15 16 17
(+) (-)
1 2 3 4 5 6 7 8 9
fuse
fuse
+
-
C NO NC
1
120V Å (ac)
L1 L2
2
9
10
4
5
1 2
1
2
(+)
(-)
3
11
18
12
13
14
15
2
1CR
16
high temperature light
1
2
3
4
8
9
10
11
12
R
SSR-240-10A-DC1
Solid State Relay
17
1 8
heater out
48-260V Å (ac)
(+) (-)
in
3-32V Î (dc)
1 CR-1
9 10 2
12 + 13 -
21 22
5
6
7
Series 988LF
988L-10CA-AARR
Temperature Control
13
5
7
9
11
1 3
13
14
10
(+)
(-)
11
Series 146
146D-1J1F-1100
Temperature Limit
3
1 2
4
∫
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 sen-
sors or peripheral
devices. Failure to
do so could result
in injury or death.
ç
WARNING:
Install high or low
temperature limit
control protection
in systems where
an over tempera-
ture fault condition
could present a fire
hazard or other haz-
ard. Failure to
install temperature
limit control protec-
tion where a poten-
tial hazard exists
could result in dam-
age to equipment,
property and injury
to personnel.
ç
WARNING:
To avoid damage to
property and equip-
ment, and/or injury
of loss of life, use
National Electric
Code (NEC) stan-
dard wiring prac-
tices to install and
operate the Series
988LF. Failure to do
so could result in
such damage,
and/or injury or
death.