York YCAL0012EC, Установка, эксплуатация и обслуживание

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JOHNSON CONTROLS
144
FORM 150.66-NM2
ISSUE DATE: 09/25/2020
SECTION 9 - SERVICE AND TROUBlEShOOTING
Following is a list, in order of appearance:
DATA LOGGING MODE = : DO NOT MODIFY
DATA LOGGING TIMER = : DO NOT MODIFY
SOFT START
REFRIGERANT TYPE
EXPANSION VALVE TYPE
SYS 1 HOURS
SYS 1 STARTS
The last displays shown on the above list is for the accu-
mulated run and start timers for each system. All values
can also be changed using the ↑ (UP) and ↓ (Down)
arrow keys, but under normal circumstances would
not be advised. After the last start display, the micro
will display the first programmable value under the
PROGRAM key.
SERVICE MODE – INPUTS
After entering Service Mode (PROGRAM ↑↑ ↓↓) ,
all digital and analog inputs to the microboard can be
viewed by pressing the OPER DATA key.
After pressing
the OPER DATA key, the ↑ (UP) arrow and ↓ (DOWN)
arrow keys are used to scroll through the analog and
digital inputs.
Following is the order of analog and digital inputs that
will appear when sequenced with the
↓ (
Down) arrow
key:
(analog inputs)
SYS 1 *SUCT PRESSURE
UNIT TYPE
SYS 1 **DISCH PRESSURE
SYS 1*** COOLER INLET REFRIG. TEMP.
SYS 1**** SUCTION TEMP.
AMBIENT AIR TEMP.
LEAVING LIQUID TEMP.
RETURN LIQUID TEMP.
SYS 1 MTR VOLTS
(digital inputs)
PWM TEMP RESET INPUT
LOAD LIMIT INPUT
FLOW SW / REM START
SPARE
SINGLE SYSTEM SELECT
SYS 1 MP / HPCO INPUT
The analog inputs will display the input connection,
the temperature or pressure, and corresponding input
voltage such as:
This example indicates that the system 1 suction
pressure input is connected to plug 7 - pin 10 (J7-10)
on the microboard. It indicates that the voltage is 2.1
volts dc which corresponds to 81 psig (5.6 bar) suction
pressure.
The digital inputs will display the input connection and
ON/OFF status such as:
This indicates that the flow switch/remote start input is
connected to plug 13- pin 5 (J13-5) on the microboard,
and is ON (ON = +30VDC unregulated input, OFF = 0
VDC input on digital inputs).
F L O W S W / R E M S T A R T
J 13 - 5 I S O N
S Y S 1 S U C T P R J 7 - 1 0
2 . 1 V D C = 8 1 P S I G