WattMaster VAV System - Manual (Page 5)

Operator Interfaces
Technical Guide
5
Modular System Manager
Power and communications are supplied to the System Manager via a
modular/pigtail cable that is supplied with the System Manager. This
cable has a male Molex connector on one end for connection to the
female Molex connector on the System Manager. On the other end are 5
insulated wires with a drain wire which are used for connection to the
communication and power wiring from the transformer and from the
local loop communications terminal on the WMVAV controller or any
VAVBOX controller’s communication terminal. A class II, 24 VAC
transformer (by others) rated at 6 VA or greater load capacity is required
for powering the System Manager.
See Figure 4 & 5 for System Manager connection and wiring details.
Use Supplied Modular
Cable With Stripped Ends
For Connection To Terminal
Block And Transformer
Modular System Manager
Back of Front Cover
P1
P2
VAR1
U13
RS-485P COMM
R14
U6
V62C518256L-70P V62C518256L-70P
CX11
CX12CX12
U12
U11
CX7
PA L
EPROM
RAM CX13CX13 75176
U8
74HC573 CX8
RN1
SC1
YS101830PREV. 2PMODULARPSYSTEM MANAGER
PCB80C552-5-16WPP442860=2/5PCB80C552-5-16WPP442860=2/5 PDfD9722V7
Y
PDfD9722V7
Y C2
U7
X1 C1
R1 R4 EWDOG
PHILIPS
X2
C3
PHILIPSPHILIPS
U3
CX5
R3
R9
8583
CX6 D3
U4 24C12824C128
CX4
74HC259 U1
U2 CX2
R3 R2
U14
C8
CX9
C7 470uF50v 1000uF10v
470uF50v470uF50v 1000uF10v
R12 R11
COMM
OUT
COMM
OUT
COMM
IN
COMM
IN
D6 C4
R13
MC34064AMC34064A
U9
9936
D5
L1
U10
74HC540 74HC540
CX14
C6
P3
CX10
C5
74HC923
R10 D4
CX3
82B715
PJ1
D2 R6 R5 D1 U3
DSPY1
R7
RV1
WHITE (T)
DRAIN WIRE (SHLD)
BLACK (R)
RED (24 VAC)
BROWN (GND)
GREEN (GND)
Class 2 Transformer
Rated For 6 VA Minimum
WMVAV Controller Board
Connection Shown
May Also Be Connected To Any
VAVBOX Controller On Loop
T
SHLD
R
Figure 4 Schematic for Wiring System Manager
Using Modular Cable Pigtail Figure 5: Detailed Typical System Manager Wiring
Using Modular Cable Pigtail
Modular System Manager
Back of Front Cover
P1
P2
VAR1
U13
RS-485P COMM
R14
U6
V62C518256L-70P V62C518256L-70P
CX11
CX12
U12
U11
CX7
PA L
EPROM
RAM CX13 75176
U8
74HC573 CX8
RN1
SC1
YS101830PREV. YS101830PREV. 2PMODULARPSYSTEM MANAGER
PCB80C552-5-16WPP442860=2/5PCB80C552-5-16WPP442860=2/5 PDfD9722V7
Y
PDfD9722V7
Y C2
U7
X1 C1
R1 R4 EWDOGEWDOG
PHILIPS
X2
C3
PHILIPSPHILIPS
U3
CX5
R3
R9
8583
CX6 D3
U4 24C12824C128
CX4
74HC259 U1
U2 CX2
R3 R2
U14
C8
CX9
C7 470uF50v 1000uF10v
470uF50v 1000uF10v
R12 R11
COMM
OUT
COMM
OUT
COMM
IN
COMM
IN D6 C4
R13 MC34064AMC34064A
U9
9936
D5
L1
U10
74HC540 CX14
C6
P3
CX10
C5
74HC92374HC923
R10 D4
CX3
82B715 82B715
PJ1
D2 R6 R5 D1 U3
DSPY1 DSPY1
R7
RV1
Class 2 Transformer
Rated For 6 VA Minimum
(By Others)
Handy Box , Conduit,
Fittings, Wire Nuts,
Butt Splices Etc.,
( By Others)
Controller Board
T
SHLD
R
HZ000121
Modular Pigtail Cable
Supplied With System Manager
WHITE
(T
)
B LA
C
K
(R
)
RED
(24 VA C)
BROWN
(GND)
GREEN
(G
ND)
Drain Wire (Shld)
LINE
VOLTAGE
LINE VOLTAGE
2-Conductor Shielded
18-Guage
Communications Wire