70
YORK INTERNATIONAL
7:
Lead Compr 2 Stages Loading,
Lag Compr 1 Stage Loading
8:
Lead Compr 2 Stages Loading,
Lag Compr 2 Stages Loading
9:
Lead Compr 3 Stages Loading,
Lag Compr 2 Stages Loading
10:
Lead Compr 3 Stages Loading,
Lag Compr 3 Stages Loading
This message provides a real time display of the aver-
age rate of change of leaving chilled water as seen by
the micro. A (-) or (+) sign is also shown to indicate a
temperature fall or a temperature rise.
This message informs the operator which system is in
the lead.
This message informs the operator that the micro has
commanded the auxiliary contacts (optional) for the
chilled water pump to close.
This message informs the operator that the micro senses
the outdoor ambient temperature is below 40°F (4.4°C)
and is commanding the Evaporator Heater to turn on.
Once turned on, the heater will turn off at 45°F (7.2°C).
This message informs the operator that the micro has
commanded the auxiliary contacts (optional) for the con-
denser water pump to close.
“OFF”: SYS 1 Liquid Line Solenoid De-energized
(Closed).
“ON”:
SYS 1 Liquid Line Solenoid Energized (Open).
S Y S
2
S T A G E S
O F
L O A D I N G
1
S Y S
2
F O R W A R D
F A N S
S T A T U S
O F F
S Y S
2
R E V E R S E
F A N
S T A T U S
O F F
T E M P E R A T U R E
R A T E
–
1 . 5
D E G F / M I N
L E A D
S Y S T E M
I S
S Y S T E M
N U M B E R
1
E V A P O R A T O R
W A T E R
P U M P
S T A T U S
O N
E V A P O R A T O R
H E A T E R
S T A T U S
O F F
C O N D E N S E R
W A T E R
P U M P
S T A T U S
O F F
S Y S
1
L I Q U I D
L I N E
S O L E N O I D
S T A T U S
O F F
S Y S
1
S T A G E S
O F
L O A D I N G
2
S Y S
1
F O R W A R D
F A N S
S T A T U S
O N
S Y S
1
R E V E R S E
F A N
S T A T U S
O F F
S Y S
1
H O T
G A S
B Y P A S S
V A L V E
S T A T U S
O F F
S Y S
1
R U N
T I M E
2 0 0
S E C S
S Y S
2
L I Q U I D
L I N E
S O L E N O I D
S T A T U S
O F F
This message informs the operator of the number of
stages of loading which are active on SYS 1.
This message informs the operator of the number of for-
ward running fans which are active on SYS 1.
This message informs the operator whether the revers-
ing fan is active on SYS 1.
This message informs the operator whether the Hot Gas
Solenoid is ON or OFF. The micro will activate the Hot
Gas signal regardless of whether or not this option is
installed.
The Run Time for SYS 1 since the last start is displayed.
“OFF”: Sys 2 Liquid Line Solenoid De-energized
(Closed).
“ON”:
Sys 2 Liquid Line Solenoid Energized (Open).
This message informs the operator of the number of
stages of loading which are active on SYS 2.
This message informs the operator of the number of for-
ward running fans which are active on SYS 2.
This message informs the operator whether the revers-
ing fan is active on SYS 2.
Summary of Contents for Millennium YCAJ150
Page 21: ...FORM 150 65 NM4 21 YORK INTERNATIONAL LD02461 FIG 6 ELEMENTARY DIAGRAM Cont d...
Page 22: ...22 YORK INTERNATIONAL ELEMENTARY DIAGRAM...
Page 24: ...24 YORK INTERNATIONAL CONNECTION DIAGRAM FIG 7 CONNECTION DIAGRAM LD02463...
Page 25: ...FORM 150 65 NM4 25 YORK INTERNATIONAL FIG 7 CONNECTION DIAGRAM Cont d LD02462...
Page 30: ...30 YORK INTERNATIONAL FIG 8 SYSTEM WIRING Cont d LD02499...
Page 100: ...100 YORK INTERNATIONAL LD02654 FIG 37B LOUVER BRACKETS INSTALLATION...
Page 103: ...FORM 150 65 NM4 103 YORK INTERNATIONAL LD02656 FIG 39A LOUVER INSTALLATION SIDES...
Page 104: ...104 YORK INTERNATIONAL LD02654 FIG 39B LOUVER BRACKETS INSTALLATION...
Page 108: ...108 YORK INTERNATIONAL FIG 40B CONDENSER COIL LOUVER INSTALLATION FRONT AND BACK LD02659...
Page 110: ...110 YORK INTERNATIONAL FIG 41 REMOTE RESET BOARD LD02666 P1...
