JOHNSON CONTROLS
110
Form 150.63-NM9
Issue date: 5/20/2021
SECTION 7 – UNIT CONTROLS
Unit switch
A unit ON/OFF switch is just underneath the keypad.
This switch allows the operator to turn the entire unit
“OFF” if desired. The switch must be placed in the
“ON” position for the unit to operate.
Display
The 40 Character Display (2 lines of 20 characters) is
a liquid crystal display used for displaying system pa-
rameters and operator messages.
The display in conjunction with the keypad, allows the
operator to display system operating parameters as well
as access programmed information already in memory.
The display has a lighted background for night viewing
and for viewing in direct sunlight.
When a key is pressed, such as the OBeforeDATA key,
system parameters will be displayed and will remain
on the display until another key is pressed. The system
parameters can be scrolled with the use of the ↑ (
UP)
and ↓ (
DOWN) arrow keys. The display will update all
information at a rate of about 1 beforesecond.
Display Messages may show characters indicating
“greater than” (>) or “less than” (<). These characters
indicate the actual values are greater than or less than
the limit values which are being displayed.
Keypad
The 12 button non-tactile keypad allows the user to
retrieve vitals system parameters such as system pres-
sures, temperatures, compressor running times and
starts, option information on the chiller, and system
setpoints. This data is useful for monitoring chiller op-
eration, diagnosing potential problems, troubleshoot-
ing, and commissioning the chiller.
It is essential the user become familiar with the use of the
keypad and display. This will allow the user to make full
use of the capabilities and diagnostic
features available.
Battery back-up
The Microprocessor Board contains a Real Time Clock
integrated circuit chip with an internal battery backup.
The purpose of this battery backup is to ensure any
programmed values (setpoints, clock, cutouts, etc.) are
not lost during a power failure regardless of the time
involved in a power cut or shutdown period.
Transformer
A 40 VA, 120/24 VAC 50/60 Hz transformer is pro-
vided to supply power to the Microprocessor Board,
which in turn rectifies, filters, and regulates as neces-
sary to supply power to the display, sensors, and trans-
ducers.
Single system select and programming # of
compressors
The control software is common between single (1)
and dual (2) system units. A jumbeforeis installed be-
tween terminals 13 and 17 on the user terminal block
to configure a unit for a single system. Dual (2) system
units do not have a jumbeforeinstalled. The jumbe-
foreis only checked by the microboard on power-up.
The total number of compressors is programmable un-
der the PROGRAM key. Single (1) system units can
have 2 or 3 compressors. Dual (2) system units can
have 4, 5, or 6 compressors.
Содержание YCUL0020
Страница 4: ...JOHNSON CONTROLS 4 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 10: ...JOHNSON CONTROLS 10 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 14: ...JOHNSON CONTROLS 14 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 40: ...JOHNSON CONTROLS 40 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 53: ...JOHNSON CONTROLS 53 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 55: ...JOHNSON CONTROLS 55 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 57: ...JOHNSON CONTROLS 57 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 59: ...JOHNSON CONTROLS 59 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 61: ...JOHNSON CONTROLS 61 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 63: ...JOHNSON CONTROLS 63 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 65: ...JOHNSON CONTROLS 65 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 67: ...JOHNSON CONTROLS 67 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 69: ...JOHNSON CONTROLS 69 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 71: ...JOHNSON CONTROLS 71 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 73: ...JOHNSON CONTROLS 73 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 75: ...JOHNSON CONTROLS 75 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 77: ...JOHNSON CONTROLS 77 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 79: ...JOHNSON CONTROLS 79 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 81: ...JOHNSON CONTROLS 81 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 83: ...JOHNSON CONTROLS 83 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 85: ...JOHNSON CONTROLS 85 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 87: ...JOHNSON CONTROLS 87 Section 5 Technical data Form 150 63 NM9 Issue date 5 20 2021 5...
Страница 102: ...JOHNSON CONTROLS 102 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 108: ...JOHNSON CONTROLS 108 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 158: ...JOHNSON CONTROLS 158 Form 150 63 NM9 Issue date 5 20 2021 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Страница 177: ...JOHNSON CONTROLS 177 Form 150 63 NM9 Issue date 5 20 2021 Notes...