York 19 SEER Скачать руководство пользователя страница 19

Страница: 19 / 26

5390862-UIM-A-0318

Johnson Controls Unitary Products

FAULT AND STATUS CODE BEHAVIOR

Fault Code Storage

The control stores the ten most recent fault codes in memory, for review
by the service technician. The codes are stored even when power is
removed from the control and will remain in memory until manually
cleared from the control. All codes are time stamped and stored in order
of occurrence.
The control stores only one identical fault code during the same series
of events. For example, if two or more low temperature cutout faults
occur sequentially without another fault occurring in between the low
temperature cutout faults, the control only stores the low temperature
cutout fault once.

Status Code Display

The control has a status LED and two 7-segment displays. The control
will provide STATUS codes indicating the state of the system using the
status LED and 7-segments, as detailed in Table 4.
A red LED indicates that a system fault is present. Fault details can be
found in Table 6.

Fault Code Display

Stored faults can be displayed by pressing the PUSH BUTTON for
greater than two but less than six seconds, while no thermostat inputs
to the control are energized. Since some room thermostats energize the
O signal even when not calling for compressor operation, turn the room
thermostat to the SYSTEM OFF position.
If faults are present during an active call for compressor operation (ther-
mostat input present to the control), the control will display all active
faults in a loop sequence. Please see the below example:

Example:

If a “High Discharge Temperature” (15) and “Discharge Tem-

perature Sensor Failure - Short” (13) are active at the same time the
control display will indicate the below pattern.
15 - two sec. off - 13 - two sec. off - 15 - two sec. off - 13 - two sec. off -
15... (loop continues)
In the above illustration, if the “Discharge Temperature Sensor Failure -
Short” fault is no longer present, the display shall indicate the below
pattern.
15 - two sec. off - 15 - two sec. off - 15... (loop continues)
Finally, if the “High Discharge Temperature” fault is no longer present,
the control will return to normal operation.

Clear Fault Codes

Pressing the PUSH BUTTON, with no active call, longer than six sec-
onds will clear all none active faults. This operation will reset both con-
trol timers and counters.

PWM Display

Pressing the PUSH BUTTON, with a compressor call, less than two
seconds, will display the PWM being sent to the outdoor fan.

Configuration Display

Pressing the PUSH BUTTON, with no active call, less than two sec-
onds, will display the current mode.
Pressing the PUSH BUTTON, with no active call, longer than six sec-
onds, will display the current mode and tonnage.

• AC / HP is determined by the presence of the reversing valve.

ASCD (Anti-Short Cycle Delay)

After the tonnage is set, a call may be given Y and/or Y/Y2. The control
has a 5 minute anti-short cycle delay. It will count the minutes down on
the control as

d5, d4, d3, d2, & d1

. The timer may be bypassed by

pressing the PUSH BUTTON between two to six seconds.
The control will then show an active call as:

• C1 = 1st stage cooling, C2 = 2nd stage cooling

Set Tonnage (Clearing error code 30)

The control is designed to be programmed in the factory with model and
tonnage. Repair part controls have not been programmed in the factory.
If the Hx

thermostat was connected to the system with the previous

control configurations, it will program the replacement controls tonnage.

When power is applied to a non-configured control it will show

. The

tonnage has not been set. The control will then show

30,

tonnage con-

figuration error code.
For conventional configuration set the dipswitches as follows:

When the dipswitches are set, hold the PUSH BUTTON, longer than six
seconds without a call for compressor. The new tonnage will be dis-
played. If the proper tonnage is not displayed, correct the dipswitch set-
ting and hold the PUSH BUTTON again. It is not necessary to cycle
power.
If tonnage is set both by dipswitches and by the Hx

thermostat, the

last change will be saved.
AC/HP status is hardcoded into the control. Periodically, the control will
run a check to verify the presence of a reversing valve. If the control
senses a change in this status, it will produce an error code. Pressing
the PUSH BUTTON for greater than six seconds, is required. AC/HP
configuration will be written to the control and displayed on the 7-seg-
ment displays.

NOTICE

If a restore defaults is performed on the Hx

thermostat or the instal-

lation is conventional wired, manual configuration of the model and
tonnage is required.

5PO

'BDUPSZ1SPHSBN

5PO