Resource Data Management PR0712-EPR Installation & User Manual page 14

Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide
P-44 Def Terminate
P-45 Def Min Time
P-46 Def Max Time
P-47 Drain Down
P-48 Recovery Time
P-89 Pump Down Time
P-86 Fan Delay mode
P-49 Fan Delay
P-88 Fan Delay Temp
P-50 Fans In Defrost
P-94 Defrost Hold
P-95 Defrost Skip
P-96 Defrost Skip Time
P-80 Door alarm delay
P-81 Door Closes Valve
P-82 Door Stops Fan
P-60 Lights Mode
P-61 Sun Lights On
P-62 Sun Lights Off
P-63 Mon Lights On
P-64 Mon Lights Off
P-65 Tue Lights On
P-66 Tue Lights Off
P-67 Wed Lights On
P-68 Wed Lights Off
P-69 Thu Lights On
P-70 Thu Lights Off
P-71 Fri Lights On
P-72 Fri Lights Off
P-73 Sat Lights On
P-74 Sat Lights Off
P-58 Broadcast ID
P-59 Refrigerant
P-75 Pressure Units
P-76 Evap Offset
P-84 Glide
P-91 Trans Span
P-99 Trans Offset
dFLt Restore default values
Warning
Ensure that all power is
switched off before
installing or maintaining
this product
Please Note
The defrost will terminate (defrost control relay off) when the temperature of the defrost termination probe
reaches this value.
If the "defrost termination" probe is not fitted, defrost termination will occur when: -
The "coil in" probe reaches the set point (If fans are selected as "off during defrost") OR
The "air off" probe reaches the set point (If fans are selected as "on during defrost").
If the "coil in" probe is not fitted, the "air off" probe will be used.
Minimum time that a defrost will use (Defrost can't terminate until this time has elapsed. If termination
temperature is reached during this period, the defrost control relay is turned off, but the controller will not
continue the defrost cycle until the end of the defrost min period)
Time period after defrost minimum that defrosts are allowed to terminate
A period after defrost max to allow the draining of any surplus water
The valve is opened at the start of this period to allow the temperature to recover to the normal operating
point. This period also inhibits the OT alarm.
Note that if the air-off temperature is still above the OT alarm setpoint when this period expires, an
immediate OT alarm occurs; there is not a further alarm delay.
Time period before the defrost min period to allow for a pump down
This parameter allows the fans start after a drain-down period to be delayed, either by time (P-49) or
when the temperature point (P-88) is reached. This parameter uses the same probe strategy as the
defrost terminate.
Time after a drain-down period before the fans start if P-86 is set to time
Temperature at which the fans start after a drain-down period when P-86 is set to temperature.
Allows the user to set the fans on or off in defrost. Note if the fans are set to on in defrost, they will go off
for the drain-down period and then follow the P-86 rules.
Turns the defrost hold feature on and off. When switched on, the controller can be held in defrost until a
remote command from the front end starts the recovery process.
Allows user to enable/disable defrost skip. This feature allows the controller to skip defrosts. If the current
defrost terminates on temperature then the controller will skip the next scheduled defrost providing the
previous defrost terminated before the defrost skip time (P-96). Operates only when the controller is set to
local defrost scheduling.
Time factor used in defrost skip. The previous defrost has to terminate before this value expires to allow
the controller to skip a defrost.
Delay after the door open input is activated before the alarm occurs.
This parameter is used to close the stepper valve if the door opens. If the door remains open then the
valve will resume normal operation on the expiry of the door alarm delay (P-80).
This parameter is used to stop the fans if the door opens. If the door remains open then the fans will
resume normal operation on the expiry of the door alarm delay (P-80).
Allows the user to set the lights mode: -

Always off

Always on

Use a local schedule P-61 to P-74)

Use a remote schedule (Set up in the system front end)
When P-60 is set to Local, Sunday on time
When P-60 is set to Local, Sunday off time
When P-60 is set to Local, Monday on time
When P-60 is set to Local, Monday off time
When P-60 is set to Local, Tuesday on time
When P-60 is set to Local, Tuesday off time
When P-60 is set to Local, Wednesday on time
When P-60 is set to Local, Wednesday off time
When P-60 is set to Local, Thursday on time
When P-60 is set to Local, Thursday off time
When P-60 is set to Local, Friday on time
When P-60 is set to Local, Friday off time
When P-60 is set to Local, Saturday on time
When P-60 is set to Local, Saturday off time
ID of Plant Controller being used to broadcast Suction Pressure
The Broadcast ID is derived from the Rotary Switch positions set on the Plant controller which is providing
the remote suction pressure.
Note: No two Plant controllers on a local area network can have the same rotary switches positions set.
This will have adverse affects on control.
Type of refrigerant gas used in the system. See:
Absolute or Gauge
Offset to allow for pressure drop over distance
Allows the calculated temperature to be offset by subtracting the value at (P-34)
Total range of the transducer
Value below zero
Restores all of the parameters to their default values
Revision 1.2a
Refrigerant Table above
Page 14 of 25
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