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IM 738-2
75
Wiring Diagrams
Figure 80. Control actuator outputs (CV, stream, or hot water, plus economizer)
/1.68
/2.68
/4.00
/4.00
NO
TES T
O FIELD:
1.
ALL FIELD MOUNTED RELA
Y
S
MUST HA
VE 24V
A
C CLASS
2 C
OILS
THE T
O
TAL V
A OF THE FIELD
MOUNTED RELA
Y
S CAN NO
T
EX
CEED 15 V
A
2.
SOURCE 1-8
WIRED INTERNAL
T
O MO
THERBO
ARD
H313-1
H313-2
H315-6
H315-8
H316-7
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
207
207
207
364
362
207
207
239
SRC
(F
AN_OPERA
TION)
(EX
T_ALARM_SIGNAL)
BO4
BO3
24V SRC
jprs
24V SRC
jprs
115V
24V
CLASS 2
24V SRC
jprs
(OPEN)
BO6
24V SRC
jprs
(EC
ON/A
CT
)
(CL
OSE)
BO5
1-8
10
2
18
19
20
21
4NO
4
3NO
3
117
115
116
3
2
4
1
8
6
7
2
1
6NO
6
3-C
CW
X-C
OM
L2
2-CW
L1
5NO
5
R26
T1_N
T2_115V
A
C
TB1C
TB1C
MCB
MCB
T3_24V
T3_C
OM
TB2
TB2
TB2
T3
PL11
+PP
PL11
+PP
PL11
+PP
PL11
+PP
PL11
+PP
MCB
AC
T
3
+NB
MCB
307A
305A
303A
303B
318A
315A
315B
168C
203B
(Schematic c
ontinues on nex
t page
.)