IM 738-2
73
Wiring Diagrams
Figure 79. CV control inputs
/1.68
/1.68
H220-1
H221-2
DRN-4
H225-1
H226-4
H226-2
NO
TES T
O FIELD:
1.
REFER T
O I.M.
FOR
MICRO
TECH II ALARM
C
O
NFIGURA
TION.
2.
T
O ENABLE SOFT
W
ARE
INTERNAL TIME CL
OCK,
TERMINALS 101 & 102
MUST NO
T BE
JUMPERED
THE FIELD T
O REMOVE
JUMPERS WHEN
INST
ALLING C
OOL/HEA
T
ENABLE SWIT
CHES
3.
SHOWN IN NIGHT
OR UNOC
CUPIED
MODE
TO
CC
B
1
H237JMP
H235-6
H235-5
H237-4
H237-3
H237-5
H237-3
H237JMP
H235-6
H235-5
H237-4
H237-3
H237-5
H237-3
H231-1
H231-3
H228-4
H228-1
H231-1
H232-2
H234-2
H235-1
DRN-4
DRN-4
H236-3
H230-3
H223-1
H224-2
DRN-4
BUILDING
BA
CKNET
MSTP
OPEN ANAL
OG
INPUT
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
265
267
SW1
#2
SW1
#5
SW1
#3
SW1
#1
OFF
ON
AU
TO
(DISCHARGE AIR
SENSOR)
(OUTDOOR AIR
SENSOR)
6
WA
L
L
S
TA
T
OVERRIDE
C
OOLING &
HEA
TING
SETPOINT
ZO
N
E
SENSOR
MANU
AL_ENABLE
C
OOL_ENABLE
HEA
T_ENABLE
AIR FL
OW
SW1
#8
SW1
#7
(DRIVE
SIDE)
(OPP
DRIVE
SIDE)
5VDC
PWR SUP
SW1
#4
(RETURN AIR
SENSOR)
IS L
O
CA
TED ON DEADFRONT
A (DB9-MALE) C
ONNECTION
CO
N
N
.
DISPLA
Y
SW1
#6
115V
24V
CLASS 2
RS232 PORT
BI8
AI8
AI7
AI6
AI5
BI7
BI6
BI5
AI4
AI3
AI2
AI1
BI4
BI3
BI2
BI1
MICROPROCESSOR C
ONTROL BO
ARD
ANAL
OG
INPUT
BINAR
Y
INPUT
3
2
1
104
102
105
106
101
101
1
2
4
A
C
1
2
4
A
C
120
121
132
3
4
WHT
BLK
DRN
WHT
BLK
DRN
BLK
RED
WHT
DRN
GRD
WHT
BLK
DRN
3
4
17
16
6
5
17
16
6
6
3
5
113
3
113
112
3/Y
1/R
101
108
41
12
1
2
3
3
2
1
3
4
4
1
2
1
2
3
G
5V+
H
5V-
RED
WHT
BLK
DRN
DRN
RED
WHT
BLK
1
2
4
WHT
BLK
DRN
RS-232
REF
N2-
N2+
128
129
WHT
BLK
DRN
GRD
5
4
3
2
4
1
8
R
7
6
R
5
4
R
3
2
R
1
8C
8
7C
7
6C
6
5C
5
4C
4
3C
3
2C
2
1C
1
P1
REF
N2-
N2+
J1
CO
M
24V
A
C
14
15
GRD
16
10
11
12
13
2
1
23
24
S7
TB2
TB2
TB2
TB2
TB2
TB2
PL2
+PP
DA
T
+NB
PL3
+PP
OA
T
+NB
TB2
ZNT1
+NB
TIME_CL
OCK
+NB
N2+/8.06
N2-/8.06
REF/8.07
PL21
+PP
PL20
+PP
SD1
+NB
PL20
+PP
SD2
+NB
PL21
+PP
PL20
+PP
PL21
+PP
TB2
+PP
TB2
TB_101
TB2
FS1
+NB
TB2
TB_101
TB2
PL15
+PP
PL15
+PP
PC7
+NB
DFRH_DS
+NB
DFLH_ODS
+NB
PL22
+PP
PL23
+PP
PWR
PL1
+PP
RA
T
+NB
SERIAL
KEYP
AD
BCNT
TB2
PVM1
T2
MCB
TB1B
T1_115V
A
C
T1_N
TB1B
S1
TB1D
3=NT
C
1=R
TD
NJ=VDC
2=MA
2
t
v
13
3
NJ=VDC
t
v
3=NT
C
2=MA
1=R
TD
2
1
3
NJ=VDC
t
v
3=NT
C
2=MA
1=R
TD
2
1
3
NJ=VDC
t
v
3=NT
C
2=MA
1=R
TD
2
1
3=NT
C
1=R
TD
NJ=VDC
2=MA
2
t
v
13
3=NT
C
1=R
TD
NJ=VDC
2=MA
2
t
v
13
3
NJ=VDC
t
v
3=NT
C
2=MA
1=R
TD
2
1
CO
M
M
. C
A
R
D
BA
CNET-MSTP
3
NJ=VDC
t
v
3=NT
C
2=MA
1=R
TD
2
1
227D
227C
226C
222C
221C
220C
217C
217A
215A
215C
210D
210C
209C
235A
231A
228A
214B
214B
236C
235C
234C
233C
232C
231C
214A
225C
224C
223C
208C
211C
203A
203B
204A
204B
204A
168A
168C
237A
220
223
(Schematic c
ontinues on nex
t page
.)