WattMaster MUA II - Manual (Page 8)

MUA II Controller
Technical Guide
8
Line Voltage
Required VA For
Transformer = 8VA
24VAC
GND
Local Loop RS-485
9600 Baud
G - Fan ON/OFF Only
R - 24VAC
Relay Output Dry Contacts
R2 Thru R5 May Be User Configured For
The Following:
1 - Heating (Aux. Heating)Stages
2 - Cooling (Compressor) Stages
3 - Gas Reheat Control For Dehumidification
4 - External Heat Enable
Note: Up To 16 More Relays Are Available
By Adding Relay Expansion Boards. All
Expansion Board Relay Outputs Are User
Configurable As Listed Above.
Note: All Temperature Sensors Must Be Thermistor Type III Which
Provide 10K Ohms Resistance @77 Deg. F
MUA II Controller
Connect To
Expansion Board
Base (When Used)
Analog Inputs
See Individual Sensor
Wiring Diagrams For
Detailed Sensor Wiring
Connect To Next Controller And/Or
MiniLink PD On Local Loop
For Stand Alone Applications
Connect To System Manager
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
All Comm Loop Wiring Is
Straight Thru
T to T
R to R
SHLD to SHLD
RL
Y1
D1
D2
D3
D4
D5
CX3
RAM EPROM
C3
C2
U6
PHILIPS
CX6
C1
CX2 U2
U3
PAL
CX4
U4
TUC-5R PLUS
YS101816 REV. 2
V1
V2
V3
V5
V4
TB2
4
NETWORK
TOKEN
16
32
8
SW1
ADD
2
1
ADDRESS
V6
POWER
GND
24VAC
L1
D16
R6
C9
SC1
R1
1
U1
1
MC34064A
D13
C16
9936
VR2
7824CT
M
TB4
R27
C13
R10
VR1
C19 C18
NE5090NPB3192 0PS
U8
CX8 U9
X1
R7 D10
R13
D12
C7 CX10
U10
CX12
U12
U14
CX14
PJ3 PJ2
PJ1
EXPANSION
PRESSURE
SENSOR
T'STAT
C17 D15
R26
C20 R25
R24
R22
U15
CX13
U13
C15
R19
R15
C14
D18 D17
PU1
PU2
PU3
PU4
PU5
PU7
D6
D7
D8
D9
D11
D14
C12
C10 0-5 VDC 0-1 VDC JP1
C1
1
X2
GND
TB3
INPUTS
GND
GND
+VDC
AIN1
AIN2
AIN3
AIN4
AIN5
AOUT1
AOUT2
AIN7
RN4
1
RN5
RS-485
CX5
U5
R
TB1
SHLD
T
COMM
COMM
RN3
1
RN1
U1
CX1
1
LD6
COMM
PWR
LD7
LED1
LED2
LD9
LD8
R1
U7
RV1
VREF ADJ
R28
+VREF
5.11V
TEST POINT
EWDOG
D19
RN2
1
COM1-3
COM4-5
R5
R4
R3
R2
R1
RL
Y2
RL
Y3
RL
Y4
RL
Y5
CX15
(1 MEG)
HH
P1
C21
+
_
0-10 VDC
0r 2-10 VDC
Connect To
External Heat
Device If Used
Figure 5: MUA II Controller Wiring
Controller Installation & Wiring