6
WATLOW Series 733/734 Service Manual
Install & Wire, Chapter 1
Input Wiring
Figure 10 -
2 or 3 Wire RTD
Wiring.
Figure 9 -
Thermocouple
Wiring.
˜
NOTE:
Dual-zone thermo-
couple units require
at least one un-
grounded
thermocouple.
1
2
3
+
-
4
5
6
+
-
Thermocouple Input
73XX-
1
XXX-XXXX
˜
(Dual Zone Only)
73XX-
4
XXX-XXXX
73XX-
6
XXX-XXXX
73XX-
4
XXX-XXXX
Zone 1
Zone 2
3 Wire RTD
2 Wire RTD
1
2
3
1
2
3
3 Wire RTD
2 Wire RTD
4
5
6
4
5
6
RTD Input
(Dual Zone Only)
73XX-
2
XXX-XXXX
73XX-
5
XXX-XXXX
73XX-
5
XXX-XXXX
Zone 1
Zone 2
