Dixell XW60K

DIN-rail power module with a separate keypad for cool rooms. Runs compressor, defrost, evaporator fans and a light or auxiliary relay from up to four probes.

What it is: Cool room controller with remote keypad. Works with the T620, T620T, V620 and CX620 keypads.

Key combo: Hold SET + DOWN for 3 s for the user level. Hold SET + DOWN again for over 7 s for the hidden menu (Pr2).

Error codes ↓
Enter service mode ↓
Parameters ↓
Change a setting ↓

Dixell XW60K error codes

Code	Meaning	Likely cause	How to reset
P1	Room (thermostat) probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Compressor cycles on the COn / COF times meanwhile.
P2	Evaporator probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Defrost ends on time (MdF) meanwhile.
P3	Third probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Outputs carry on as normal.
P4	Fourth (condenser / Hot Key socket) probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Outputs carry on as normal.
HA	High temperature alarm	Room probe above ALU for longer than ALd	Clears by itself once back inside the limit. Outputs unchanged.
LA	Low temperature alarm	Room probe below ALL for longer than ALd	Clears by itself once back inside the limit. Outputs unchanged.
HA2	Condenser high temperature	Condenser probe above AU2 (dirty condenser, fan fault)	Clears when the temperature drops. Compressor stops only if AC2 = y.
LA2	Condenser low temperature	Condenser probe below AL2	Clears when the temperature rises. Compressor stops only if bLL = y.
dA	Door open alarm (i1F = dor)	Door switch open longer than did	Clears when the door closes. Compressor and fans restart.
EA	External alarm (i1F = EAL)	Digital input active longer than did	Clears when the input goes back to normal. Outputs unchanged.
CA	Serious external alarm (i1F = bAL)	Digital input active	All outputs off. Clears when the input goes back to normal.
CA	Pressure switch alarm (i1F = PAL)	Pressure switch tripped nPS times within did	All outputs off. Power the controller off and on to reset.
EE	Memory fault	Internal data check failed	Press any key: rSt shows for about 3 s and normal running resumes. If it returns, replace the controller.

How to enter service / parameter mode

Hold SET and DOWN together for 3 seconds. The °C or °F light flashes: you are in the user level (Pr1).
Let go, then hold SET and DOWN again for more than 7 seconds. Pr2 shows, then Hy. You are now in the hidden menu with every parameter.
If the user level is empty, noP shows first. Keep holding until Pr2 appears.

Parameter list

Code	What it does	Range	Default / typical
Hy	Differential: compressor cuts back in at set point + Hy	0.1–25.5 °C	2.0 °C
LS	Lowest set point a user can choose	−55 °C to set point	−50.0 °C
US	Highest set point a user can choose	Set point to 150 °C	110 °C
P2P	Evaporator probe fitted? (n = no, defrost ends on time)	n / Y	Y
AC	Minimum off time between compressor stop and restart	0–30 min	1 min
COn	Compressor run time per cycle when the room probe has failed	0–255 min	15 min
tdF	Defrost type	EL / in	EL
dtE	Evaporator temperature that ends defrost	−55 to 50 °C	8.0 °C
MdF	Longest a defrost can run (or fixed length with no evaporator probe)	0–255 min	30 min
dFd	What the display shows during defrost	rt, it, SEt, dEF, dEG	it
FnC	Evaporator fan mode (with compressor or always on; on or off in defrost)	C-n, o-n, C-Y, o-Y	o-n
Fnd	Fan delay after defrost	0–255 min	10 min
FSt	Fans stop above this evaporator temperature	−55 to 50 °C	2 °C
ALC	Alarm limits as absolute values (Ab) or relative to set point (rE)	rE / Ab	rE
ALU	High temperature alarm limit	Alarm range	10.0 (relative)
ALL	Low temperature alarm limit	Alarm range	10.0 (relative)
ALd	Delay before a temperature alarm shows	0–255 min	15 min
i1F	What the digital input does (door, external alarm, pressure switch, defrost, etc.)	EAL, bAL, PAL, dor, dEF, Htr, AUS	dor
did	Delay before a digital input alarm shows	0–255 min	15 min
rrd	Restart cooling if the door stays open past the door alarm	n / Y	Y
PbC	Probe type (PTC or NTC; Pt1000 on some versions)	PTC / NTC	NTC
onF	Whether the front key can switch the controller off	nu, oFF, ES	oFF

How to change and save a setting

Scroll with UP or DOWN to the parameter code.
Press SET to show its value.
Change it with UP or DOWN.
Press SET to store it and move to the next parameter.
To leave, press SET + UP or wait about 15 seconds. Values are kept either way.

Other useful key presses

Task	How
Manual defrost	Hold DEF for 3 s.
Fast freeze	Hold UP for 3 s.
Silence the buzzer	Press any key (buzzer is an option in the keypad).
Clear Hi / Lo memory	Hold SET for 3 s while the stored value shows.

Notes

The T620T keypad can lock itself automatically; see the keypad lock settings in the manual.
With ALC = rE the alarm limits are offsets from the set point, which is why the defaults are positive.

For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.

Based on: Dixell XW60K installing and operating instructions. Always check the manual for your exact model and software version.

ServiceModes is not affiliated with Dixell or any other manufacturer. Written in our own words from the manufacturer's documentation.