Figure 26. Csm Remote I/O Modules C And D Field Wiring Schematic - McQuay MicroTech II Installation Manual

Figure 26. CSM Remote I/O Modules C and D Field Wiring Schematic

Lon Network to Chillers, CSM,
and/or other Remote I/O Modules
Cooling Load Pump 6 Status
(Flow Proving Device)
Cooling Load Pump 5 Status
(Flow Proving Device)
Lon Network to Chillers, CSM,
and/or other Remote I/O Modules
CD 251740501
Page 36
Remote C
1
Cooling Load Pumps 5 to 6
2
4
3
Lon Port
25
24
Inputs Outputs
29 (Y) 35 (Y)
DI 4
AO 2
0-10Vdc
28 (0)
34 (0)
27 (Y)
DI 3 32 (Y)
26 (0) AO 1
0-10Vdc
31 (0)
8 (Y)
DI 2
7 (0)
Relay 5 NC 57
6 (Y)
DI 1
Com56
5 (0)
6A @ 230V
NO 58
NC 54
Relay 4
Com53
6A @ 230V
20 (Y)
NO 55
AI 4
19 (0)
17 (Y)
AI 3
I6 (0)
Relay 2
Com49
6A @ 230V
14 (Y)
NO 50
AI 2
I3 (0)
11 (Y)
AI 1
10 (0)
Relay 1
Com47
6A @ 230V
NO 48
Remote D
1
Loop Bypass Valve Analog Output
2
4
3
Lon Port
25
24
Inputs Outputs
29 (Y) 35 (Y)
DI 4
AO 2 0-10Vdc
28 (0)
34 (0)
27 (Y)
DI 3
32 (Y)
26 (0) AO 1
0-10Vdc
31 (0)
8 (Y)
DI 2
7 (0)
Relay 5 NC 57
6 (Y)
DI 1
Com56
5 (0)
6A @ 230V
NO 58
NC 54
Relay 4
Com53
6A @ 230V
20 (Y)
NO 55
AI 4
19 (0)
17 (Y)
AI 3
I6 (0)
Relay 2
Com49
6A @ 230V
14 (Y)
NO 50
AI 2
I3 (0)
11 (Y)
AI 1
10 (0)
Relay 1
Com47
6A @ 230V
NO 48
Notes: 1. All remote I/O modules are optional. Their requirement is
based on the number pumps, valves and/or cooling tower
fans controlled by the CSM.
24 Vac
24 Vac power
0
50/60 Hz
Cooling Load Pump VFD Speed
Cooling Load Pump VFD Speed
Cooling Load Pump 6 Enable
Cooling Load Pump 5 Enable
24 Vac
24 Vac power
0
50/60 Hz
Loop Bypass Valve
IM 781-2