Heat Controller Water Source Heat Pump - Manual (Page 85)

WattMaster WHP Section 4
Start-Up and Troubleshooting 4-3
All communications wiring should be labeled to avoid confusion and to aid future
servicing.
COMPUTER
(OPTIONAL)
SYSTEM MANAGER
Remote Link
(OPTIONAL)
UNIT COMES WITH
STANDARD WALL MOUNT
120/24 VAC POWER SUPPLY
( MAY ALSO BE POWERED FROM 24VAC )
COMM LINK II
INTERFACE
(MULTIPLE LOOP)
TO OTHER MINILINKS
(NETWORK TERMINALS ONLY)
TO OTHER WHP CONTROLLERS
YS101716 REV. 1
SYSTEM MANAGER POWER SUPPLY
SHLD
COMMUNICATIONS
RS-485
R
T
GND
24VAC
POWER
LOOP NETWORK
T T SH SH R R
24V
A C
GN
D
RELAY OUTPUT COM 1-3 OUT
OUT 1
2
COM 4-5
OUT
OUT
OUT 3
4
5
24VAC
24VAC
GND
GND
PWR
COMM
T
T
SHLD
SHLD
LD4
REC.
12V
AIN
1
2
3
4
5
GND
GND
AOUT
AIN
AIN
AIN
AIN
4-5
OUT
COMM
TEST
32K 8K
RAM EPROM
ADDRESS ADD
PRESSURE SENSOR
485 COMM
R
R
YS101564
EW D O G
0- 5 VD C
0- 1 VD C
CPU
RELAY OUTPUT COM 1-3 OUT
OUT 1
2
COM 4-5
OUT
OUT
OUT 3
4
5
PWR
COMM
LD4
REC.
12V
AIN
1
2
3
4
5
GND
GND
AOUT
AIN
AIN
AIN
AIN
4-5
OUT
COMM
TEST
32K 8K
RAM EPROM
ADDRESS ADD
PRESSURE SENSOR
485 COMM
YS101564
EW D O G
0- 5 VD C
0- 1 VD C
CPU
AIN1 AIN2 AIN3 AIN4
GND AOUT1
YS101784 4 ANALOG IN MOD I/O BD.
4RLY IO BD.
4RLY IO BD.
YS101790
YS101790
2 4 V A C
G N D RL Y 1
D1
D2
D3
D4
D5
CX 3
RAM EPROM
C3
C2
U6
P H IL IP S
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 PO W ER
GND
24VAC
L1
D1 6
R6
C9
SC1 R1 1 U1 1 MC340 64A
D1 3
C16
9936
VR2
7824C T M
TB4
R2 7
C13
R1 0
VR1
C1 9 C1 8
NE5090NPB3192 0PS
U8
CX 8 U9
X1
R7 D1 0
R13 D12
C7 CX10
U10
CX12
U12
U14 CX14
PJ 3 PJ 2
PJ1
EXPANSION
PRESSURE
SENSOR
T'STAT
C17 D15
R26
C20 R25 R24 R22 U15 CX13
U13
C15
R19
R15
C14
D1 8 D1 7
PU1 PU2
PU3
PU4 PU5
PU7
D6
D7
D8
D9 D11
D14 C12
C10 0- 5 VD C 0- 1 VD C 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 Y 2
RL Y 3
RL Y 4
RL Y 5
CX15
(1 MEG) HH
P1
C2
1
03/31/04 03:38PM WED
OCCUPIED
NO ALARMS
Figure 4-2: Communications Loop Routing