31
Make-up Air (MUA) Board Connectors
The Make-up Air Board (
) is located in the main cabinet, refer to
Figure 18 - MUA Board
Q3
Q4
ISO1
D23
D51
VR1
8
1
J10
8
1
J9
8
1
J29
8
1
J30
18
10
9
1
J36
18
10
9
1
J33
18
10
9
1
J8
18
10
9
1
J7
18
10
9
1
J31
18
10
9
1
J32
7
1
J13
14
8
7
1
J18
14
8
D52
R189
R125
R134
R247
S1
ON
S4
ON
S3
R244
C13
C160
J27
2
1
J26
C30
R75
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D26
D27
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D54
MODBUS
A
DDC TERM
J1
J2
J6
J5
K16
J4
J3
K2
K10
K8
R126
L1
K6
K4
C146
R182
R127
C147
K14
U58
K12
C145
R212
R216
R217
R218
C179
C180
C181
C182
R219
C183
R220
U4
R221
R7
R9
+12VDC
+5VDC
D59
R222
C184
U6
R223
1
U1
3
1 J25
U20
C185
C186
D4
R68
R98
R224
C74
R101
R104
R69
R70
C161
R107
RN7
Q1
Q2
R135
R136
R178
R137
S2
R149
U41
U44
K20
U77
K21
Y1
R144
C88
R172
R150
BT1
R138
J37
U8
Y
VIN
R145
R146
G
R
0-10
C
SM-2
10
1
J35
10
1
J15
8
1
J14
8
1
J28
R225
C89
24V
24VAC
+24VDC
+3.3VDC
DC
24V
DC
CR2032
W
0-10
COM
COM
0-10
VIN
COM
COM
IT
IT
RT
RT
OT
OT
DT
DT
ST
ST
0-10VOLT
4-20
24V
COM
UNIT
INTLK
COM
COM
AUXIN1
AUX
IN2
AUXIN3
HEAT
COOL
FAN
OCC
OVR
ISO
COM
IN
COM
24V
0-10
IN
COM
AC
24V
AC
24V
AC
VIN
VIN
COM
COM
COM
COM
DI-1
AI-1
AI-2
AI-3
THERMISTORS
R128
mA
AC
24VAC
R129
BAS/STAT
AC
24V
AC
R130
24V
AC
24V
DI-2
C90
AI-4
WATER
C91
C92
DRAIN
EXH_FAN
C93
K15
ALARM
MAIN
GAS
SPARK
BURN
PILOT
AUX
BLOWR
R131
R132
C94
C95
C96
8
1
C97
C98
C99
C100
R160
C101
Y2
J11
C178
R12
R13
U15
C24
C76
U36
8
1
J16
U42
R14
U38
R139
C52
R15
R49
R53
R16
U55
C102
U46
K5
C103
K3
C104
K1
R17
C105
C106
K13
C107
K11
C108
K9
C32
C109
K7
C110
R133
C53
C54
C33
R18
R19
C38
RN5
C77
U45
SUP_FAN
DAMPER
DR_HEAT
CAB_HEAT
ALARM
SPARK
FSC6
FSC7
AUX_OUT
SPARE.1
SPARE.2
OIL_SOL
Y1
Y2
R230
Y3
FSC-1
FSC-2
LV-3
R231
LV-4
LV-5
LV-6
LV-1
LQ_BP
DAMP_ACT
FSC2
FSC2
120V AC INPUT INDICATORS
GAS
TEMP
HI
C25
CASLink BMS SLAVE
HMI VFD MASTER
POWER VENT
POWER
C34
HOT
RN8
AC LINE VOLTAGE
AC LINE VOLTAGE
AIR
FLAME
8
K23
PROV
1
K22
R147
J12
FSCRESET
R148
HI
TEMPLIM
PROG
R167
FSC1
FSC1
TH/W
PSW
R171
PSW
TH/W
U64
BAS/STAT
JTAG/SWD
THERMISTORS
VENT1
POWER
J34
VENT2
HOT
NEUTRAL
SLT
SLT
U57
LLT
LLT
ICT
ICT
OCT
OCT
SM-1
FSC-4
C55
FSC-3
LV-2
CDT
CDT
R246
C149
BOOT
DDC
+
-
U13
C
USB
R20
R56
MUA REV. 03
C48
AX# A0027873
C46
C47
R59
R76
R78
D28
Q5
D29
R62
R65
R21
R22
C51
R226
R23
R24
C35
C36
C39
C40
J38
B
C
+
1
3
C187
R190
R29
R44
D24
D25
C111
U56
R232
R233
C78
R173
R175
R25
K24
R34
C162
C163
C164
C79
R191
R192
U39
C56
C57
C58
C59
C60
C61
VR2
C62
C63
C64
C65
U69
C66
C165
C166
C167
C168
U26
C112
C113
C67
C169
C172
R227
Q6
D22
R31
R45
R193
C80
R194
J20
Q7
R195
J17
R197
J21
C81
F6
ISO2
J19
R80
Q8
C14
C15
C16
U24
C17
C18
C19
R199
C82
C20
C21
C22
U27
C173
U25
U21
R200
C23
U18
C42
C174
R86
R89
R71
C114
R30
C31
R38
R37
R72
R73
R74
1
J22
R95
R92
1
J24
R77
1
J23
R79
R81
K18
Q9
C9
U12
U14
R153
C115
Q10
R201
R236
R239
C83
R202
K19
R205
C84
R207
Q11
K17
U60
U61
U17
R54
C68
C69
R63
C175
C176
C177
C70
U29
C71
R46
R50
U70
U43
R58
R47
C37
C41
R51
R61
U72
R55
R57
R60
R155
R64
R176
R156
R157
SW1
SW2
R163
R158
C85
R166
R169
R165
C86
C87
C118
U66
R208
U65
C119
R66
U73
U63
C188
C191
C192
C193
C194
C195
C196
RN6
C197
U7
U5
U34
R229
R238
R240
R241
R177
F5
R242
R243
C117
C116
R179 R180
R183
F2
F3
F4
R140
R141
R181
U71
R234
R237
R209
R211
R213
R214
U62
C120
C121
U11
U9
C122
C123
R26
R33
R36
R174
R40
R43
R67
R82
R27
R28
R41
R83
R196
U67
R198
C10
C72
C73
R159
C124
C125
R142
U22
C43
R143
R8
C12
R10
C44
R84
C45
R87
U3
U2
C49
R90
R161
R162
U23
R93
R96
R99
R102
C50
R105
R154
R164
D53
C153
C150
L2
C148
U59
C151
R188
R215
C26
C27
C28
C29
RN11
RN3
RN4
U76
RN2
R235
U75
U68
C126
D57
RN10
C127
C128
C129
C130
C131
C132
C133
C134
C135
R245
C136
C137
C138
C139
C140
GND
GND
GND
GND
GND
GND
GND
HV-2
HV-1
PF15
PF5
3.3V
5V
12V
MOD OUTPUT
MOD PWR
C141
C142
C143
C144
C152
C75
C154
C155
C156
C157
C158
C159
R108
R109
R110
R111
R112
R113
R114
R115
R116
R117
R118
R121
R122
R123
R124
D58
R11
3
4
2
4
3
2
R42
R48
C170
R85
U78
5000794
C171
L2
VR3
C189
C190
J39
H1
PS1