JOHNSON CONTROLS
130
FORM 150.66-NM1 (708)
Unit Controls
Option 19 – Pump Control:
Pump Control is utilized to operate the optional onboard
pump kit or to control an external pump through dry
contacts 23 and 24. To use this option, the following
selection should be made in the Service Mode:
When YORK HYDRO KIT PUMPS = 1, the controls
will be closed to run the pumps whenever any one of
the following conditions are true:
• Low Leaving Chilled Liquid Fault
• Any compressor is running
• Daily Schedule is ON and Remote Stop is
closed.
Even if one of the above conditions
are true, the pump will not run if the
chiller has been powered up for less
than 30 seconds; or if the pump has
run in the last 30 seconds to prevent
pump overheating.
EXTERNAL EVAP PUMP should be selected if an
external pump is being controlled with the chiller pump
contacts. The operation will be the same as YORK
HDRO KIT PUMPS = 1
The following option should not be selected.
Option 20 – Pump Selection:
The displays for this PUMP SELECTION option should
only appear if “YORK HYDRO KIT PUMPS = 2” are
selected under Option 19.
Selecting Manual Pump 1 allows pump 1 to operate
as the duty pump without automatic change over to
pump 2.
Selecting Manual Pump 2 allows pump 2 to operate
as the duty pump without automatic change over to
pump 1.
Selecting Automatic allows both pumps to operate as
the duty pump with automatic change over to standby,
if a pump trip occurs.
CLOCK
The CLOCK display shows the current day, time, and
date. Pressing the CLOCK key will show the current
day, time, and date.
It is important that the date and time be correct,
otherwise the daily schedule will not function as desired
if programmed. In addition, for ease of troubleshooting
via the History printouts, the day, time, and date should
be correct.
To change the day, time, and date press the CLOCK
key. The display will show something similar to the
following:
The line under the F is the cursor. If the day is correct,
press the ENTER/ADV key. The cursor will move under
the 0 in 08 hours. If the day is incorrect, press the ↑
(UP) or ↓ (DOWN) arrow keys until the desired day is
displayed and then press the ENTER/ADV key at which
time the day will be accepted and the cursor will move
under the fi rst digit of the “2 digit hour”. In a similar
manner, the hour, minute, meridian, month, day, and
year may be programmed, whenever the cursor is under
the fi rst letter/numeral of the item. Press the ↑ (UP) or
↓ (DOWN) arrow keys until the desired hour, minute,
meridian; day, month, and year are displayed. Pressing
the ENTER/ADV Key will save the valve and move the
cursor on to the next programmable variable.
Y
O
R
K H
Y
D
R
O
K I T P
U
M
P
S =
1
E
X
T
E
R
N
A
L
E
V
A
P P
U
M
P
Y
O
R
K H
Y
D
R
O
K I T P
U
M
P
S =
2
T O D A Y I S F R I 0 8 : 5 1 A M
2
5 J
A
N 0
2
P
U
M
P S
E
L
E
C
T I 0
N
M A N U A L P U M P N O 1
P
U
M
P S
E
L
E
C
T I 0
N
M A N U A L P U M P N O 2
P
U
M
P S
E
L
E
C
T I
O
N
A
U
T
O
M
A
T I
C
Содержание YORK YCAL0041EC
Страница 12: ...JOHNSON CONTROLS 12 FORM 150 66 NM1 708 THIS PAGE INTENTIONALLY LEFT BLANK...
Страница 57: ...FORM 150 66 NM1 708 57 JOHNSON CONTROLS 6 ELEMENTARY DIAGRAM CON T LD13248 FIG 4 CON T CONTROL CIRCUIT DUAL...
Страница 59: ...FORM 150 66 NM1 708 59 JOHNSON CONTROLS 6 ELEMENTARY DIAGRAM CON T FIG 5 CON T CONTROL CIRCUIT DUAL LD13260...
Страница 167: ...FORM 150 66 NM1 708 167 JOHNSON CONTROLS NOTES...