Table 28 - Monitor & Control I/O For Primary Unit Table 12 - Vav Four Or Six Compressor Logic - Controller; Control; Fig. 51 - Mod-Unt; Fig. 52 - Mod-Unt Wiring Diagram - York eco2 050 Installation Operation & Maintenance

TO MOD-DCU
SUCTION PRESSURE
OUT
TRANSDUCER SYSTEM #1
COM
OPTIONAL
EXC
DISCHARGE PRESSURE
OUT
TRANSDUCER SYSTEM #1
COM
OPTIONAL
EXC
SUCTION PRESSURE OUT
COM
TRANSDUCER SYSTEM #2
OPTIONAL EXC
OUT
DISCHARGE PRESSURE
COM
TRANSDUCER SYSTEM #2
EXC
OPTIONAL
SUCTION PRESSURE
OUT
TRANSDUCER SYSTEM #3
COM
OPTIONAL EXC
OUT
DISCHARGE PRESSURE
COM
TRANSDUCER SYSTEM #3
EXC
OPTIONAL
* FIELD INSTALLED
FIG. 52 – MOD-UNT WIRING DIAGRAM
TABLE 28 – MONITOR AND CONTROL I/O FOR MOD UNT CONTROLLER
I/O NAME
System 1, Suction Pressure
System 1, Discharge (Condenser) Pressure
System 2, Suction Pressure
System 2, Discharge (Condenser) Pressure
System 3, Suction Pressure
System 3, Discharge (Condenser) Pressure
Cond. Fan, System 1
Cond. Fan, System 2
Cond. Fan, System 3
YORK INTERNATIONAL
FIG. 51 – SECONDARY CONTROLLER
N2+
1
N2-
2
TB2 N2 GND
3
2AI1
W1
2AI1C
W2
2AI2
W5
2AI2C
W6
15V(D)
2AI3
W10
2AI3C
W11
2AI4
W12
2AI4C
W15
15V(E)
2AI5
W16
2AI5C
W17
2AI6
W21
2AI6C
W22
15V(F)
15V(D)
15V(E)
W25
15V(F)
ANALOG OR
BINARY
AI
AI
AI
AI
AI
AI
AO
AO
AO
00492VIP
SECONDARY
CONTROLLER
(MOD-UNT)
TO 2T
XF MR
4
TB-4
24O4
W20
W23
24O4C
W36
W37
W38
2AO1
W3
2AO1C
W4
2AO2
W8
2AO2C
W9
2AO3
W14
2AO3C
W18
24VAC
100
W56
24VAC
COM
RTN
W55
RTN
SIGNAL APPL. VALUE
LEVELS
1.0-5.0V
1.0-5.0V
1.0-5.0V
1.0-5.0V
1.0-5.0V
1.0-5.0V
0-10V
0-10V
0-10V
FORM 100.50-NOM1 (604)
FLEXSYS BYPASS
DAMPER CONTROL
3
2
1
5
CTB2
6
=
* EVAP RESET TEMP
7
= * FLEXSYS DIRTY FILTER SW.
8
CONDENSER FAN
VFD - SYSTEM NO. 1
OPTIONAL
CONDENSER FAN
VFD - SYSTEM NO. 2
OPTIONAL
CONDENSER FAN
VFD - SYSTEM NO. 3
OPTIONAL
1
2
LD06687
WHERE USED
RANGE
0 to 200 X'Ducer Package
0 to 500 X'Ducer Package
0 to 200 X'Ducer Package
0 to 500 X'Ducer Package
0 to 200 X'Ducer Package
0 to 500 X'Ducer Package
0 to 100% Low Ambient
0 to 100% Low Ambient
0 to 100% Low Ambient
8
125