116
YORK INTERNATIONAL
a display of chilled liquid temperatures leaving the chiller
(LCHLT) and returning to the chiller (RCHLT) is pro-
vided as follows:
If the key is pressed again, the following message will
appear if an optional mixed chilled leaving temp sensor
is installed for multi unit sequencing. If a sensor is not
installed, pressing the key will have no effect.
3.3 SYSTEM # DATA KEYS
Pressing one of the System # Data keys a number of
times scrolls through displays of differential oil pressure
(OIL), suction pressure (SP) and discharge pressure
(DP), oil temperature, suction temperature (ST), dis-
charge temperature (DT), saturated suction tempera-
ture, suction superheat, saturated discharge tempera-
ture, discharge superheat and compressor slide valve
position.
Examples of these displays are as follows where # is
the appropriate system number :
3. DISPLAY KEYS & OPTION SWITCHES
3.1 GENERAL
The Display keys provide direct access to retrieve com-
monly required data about the operation of the chiller.
This is particularly useful during commissioning, moni-
toring the operation of the chiller, diagnosing potential
future problems and service troubleshooting.
When a Display key is pressed, the corresponding mes-
sage will be displayed and will remain on the display
until another key is pressed.
Displayed data is in "real-time" and is updated approxi-
mately every 2 seconds. If updating of one of the mes-
sages is required faster than every 2 seconds, the ap-
propriate key for the desired display can be pushed and
held to provide updating every 0.4 seconds.
Display Messages may show characters indicating
“greater than” (>) or “less than” (<). These characters
indicate the actual values are greater than or less than
the values which are being displayed, but are outside
the ability of the micro to give an actual reading. This is
unlikely to occur unless a problem exists in the measur-
ing sensors or during extreme conditions.
The Display keys and the data available from each is as
follows:
3.2 CHILLED LIQUID TEMPS KEY
When the Chilled Liquid Temperatures key is pressed,
29023A
L C H L T
=
6 . 8
°
C
R C H L T
=
1 2 . 2
°
C
M C H L T
=
6 . 6
°
C
DISPLAY
KEYS AND
OPTION
SWITCHES
Micropanel
Содержание MILLENNIUM YCAS
Страница 53: ...53 YORK INTERNATIONAL FORM 201 18 NM2 WIRING DIAGRAM ACROSS THE LINE START 7...
Страница 54: ...54 YORK INTERNATIONAL FIG 12 CONTINUED ELEMENTARY DIAGRAM Technical Data...
Страница 56: ...56 YORK INTERNATIONAL FIG 13 POWER PANEL FRONT INSIDE VIEW ACROSS THE LINE START Technical Data...
Страница 57: ...57 YORK INTERNATIONAL FORM 201 18 NM2 LD03280 FIG 14 ELECTRONIC PANEL FRONT INSIDE VIEW ACROSS THE LINE START 7...
Страница 59: ...59 YORK INTERNATIONAL FORM 201 18 NM2 WIRING DIAGRAM WYE DELTA START LD03229 FIG 15 CONT D 7...
Страница 60: ...60 YORK INTERNATIONAL FIG 15 CONTINUED ELEMENTARY DIAGRAM Technical Data...
Страница 62: ...62 YORK INTERNATIONAL FIG 16 POWER PANEL FRONT INSIDE VIEW WYE DELTA START Technical Data...
Страница 63: ...63 YORK INTERNATIONAL FORM 201 18 NM2 LD03280 FIG 17 ELECTRONIC PANEL FRONT INSIDE VIEW WYE DELTA START 7...
Страница 65: ...65 YORK INTERNATIONAL FORM 201 18 NM2 LD03282 LD03283 LD03284 FIG 19 DETAIL A see pages 54 59 7...
Страница 67: ...67 YORK INTERNATIONAL FORM 201 18 NM2 COMPRESSOR TERMINAL BOX LD03233 FIG 23 COMPRESSOR TERMINAL BOXES 7...
Страница 68: ...68 YORK INTERNATIONAL FIG 24 DETAIL B Technical Data...
Страница 88: ...88 YORK INTERNATIONAL COMPRESSOR COMPONENTS CONT D FIG 34 COMPRESSOR COMPONENTS LD03669 Technical Data...
Страница 89: ...89 YORK INTERNATIONAL FORM 201 18 NM2 COMPRESSOR COMPONENTS CONT D FIG 35 COMPRESSOR COMPONENTS LD03670 7...
Страница 90: ...90 YORK INTERNATIONAL COMPRESSOR COMPONENTS CONT D FIG 36 COMPRESSOR COMPONENTS LD03671 Technical Data...
