Hill Phoenix 05DMA manual Control Settings, Alarm Operation

CONTROL SETTINGS

ESC3 Controls

Alarm Operation

Indications on the Display

If the defrost, or compressor key blinks, it means that the corresponding function is delayed by a timing routine or inhibited. Other two-character messages may appear on the screen to indicate changes of state or alarm condi- tions. Values shown in Table 1.

Viewing and Changing the Temperature Setpoint The temperature setpoint is the comparison point for the control temperature input. To change the set point value:

1. Press the Alarm key for more than 5 seconds until the

setpoint is displayed and blinking.

Table 1

Code	Meaning
E0	Air probe has failed
E1	Defrost termination or product probe has failed
LO	Low temperature alarm
HI	High temperature alarm
Ed	Defrost timeout has occurred
	(did not terminate correctly)
dF	Case is in defrost (not an alarm)

ESC3 Case Controller

Compressor Key

2.	Press the Compressor key and Defrost keys to
	raise/lower the value.
3.	Press the Alarm key again to accept the new value.

Changing Other Setpoints

There are two levels of setpoints in the ESC3. The first level does not require a password to change (unless the buttons are locked out). The setpoints that can be changed in this manner are identified in Table 1 (back side) as a USER setpoint. All other setpoint do require a password to change and are identified in Table 2 (back side) as an OEM setpoint. To change USER-level set- points:

Defrost Key

Alarm Key

1.Press the Alarm key and hold it until the letters PS are displayed.

2.Use the Compressor and Defrost key to scroll through the codes for the different set points (see Table 1 and Table 2).

3.When the code is displayed for the setpoint you wish to change, press the Alarm key. The value for that setpoint will be displayed.

4.Press the Compressor or Defrost key to change the value

5.Press the Alarm key to go back to the code.

At this point you must press the Alarm key to accept the change or press the Compressor or Defrost key to scroll to the next USER setpoint. To accept the changes, press and hold the Alarm key until the display stops flashing. To change OEM-level setpoints, the password must be entered. To do this press and hold the Alarm key until the letters PS are displayed. When PS is displayed release the alarm key and 0 will be displayed. Press the Compressor or Defrost keys to enter the password (22 is the default) then press the Alarm key. PS will be dis- played again. At this point, pressing the Compressor or Defrost key will scroll through the legend for all setpoints. To change the setpoints, use the identical procedure that is used to change a USER setpoint.

		K1	R1
J4	J6		J5
120Vac Neutral	Fan Compressor	120V Hot Defrost	Amb temp Common Def temp

5	6
	K2
4	1
Control Input	0.39 A, 120 Vac, 60 Hz
Common Input	11.2 A, 120 Vac, 60 Hz
Fan Output	1 FLA, 6 LRA, 120 Vac, 60 Hz
Compressor Output	1.5 HP @ 120 Vac
(K2)	(external relay #841-S-1A-D
	by Song Chuan)
Defrost Output	10.0 A, 120 Vac, Resistive, 60 Hz
	(P/N 850-3500 only)

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