4-40
Menu Program Functions
µ
P-D Controller
CSR-20 & CSR-40, September 1999
Setting the Humidify Mode
1.
Press the SELECT key to enter menu (display shows
“MENU <--->”.
2.
Press UP key until display shows “MENU PRGRM”.
3.
Press the SELECT key to show “PRGRM <--->”.
4.
Press the UP or DOWN key until the display shows the
current “HUMID” setting:
• “HUMID OFF”.
• “HUMID DEHUM” — Dehumidify option is ON.
• “HUMID HUM” — Humidify option is ON.
NOTE: The Dehumidify and Humidify option
screens do not appear unless the unit is
equipped with the option and the controller is set
to the correct unit configuration. Also, the
Dehumidify (or Bulb) and Humidify options can
NOT be turned ON at the same time.
5.
To change the current setting, press the SELECT key.
“HUMID” will begin to flash in the left display.
6.
Press the UP or DOWN key to scroll the right display to
the desired setting: “DEHUM”, “HUM” or “OFF”.
7.
To load the new setting, press the ENTER key. The dis-
play briefly shows “HUMID LOAD”.
8.
When the Humidify mode is turned ON, the left display
shows “HUMSP” and the right display shows the current
humidity setpoint in percent (e.g. “70.0”). To change the
humidity setpoint:
a.
Press the SELECT key. “HUMSP” will flash in the left
display.
b.
Press the UP or DOWN key to adjust the humidity
setpoint to the desired setting (see shipping manifest).
The right display scrolls up or down to the new
humidity setpoint in percent (e.g. “85.0”).
c.
To load the new setpoint, press the ENTER key. The
display briefly shows “HUMSP LOAD”. The new
humidity setpoint then shows in the right display (e.g.
“85.0”).
NOTE: Press and hold the SELECT key for 3 sec-
onds to return to the Standard Display.
Bulb Mode (Option)
Changing the Bulb screen from OFF to ON automatically acti-
vates the Dehumidify Mode and allows the defrost termination
temperature and evaporator fan speed to be set. The use of the
Bulb Mode should be established by the shipper. When the
Bulb Mode is ON:
•
The Dehumidify Mode is ON. See “Dehumidify Mode
(Option)” on page 4-39 for a description of the dehumidi-
fy system operation.
•
The defrost termination temperature (“BDFTT”) can be
adjusted from 4 to 30 C (40 to 86 F). Lower defrost ter-
mination settings may result in less warming of the cargo
during defrost.
•
The evaporator fan speed (“BEFAN”) can be set to High
Speed, Low Speed or Cycle (fans cycle between high and
low speed every 60 minutes).
NOTE: If the Bulb Mode is set to ON, the con-
troller display will show “BULB ON” for 1 sec-
ond every 10 seconds. Also, the display will
show “DEHUM” in the left display and the con-
tainer humidity level (e.g. “74.5”) in the right dis-
play for 1 second every 10 seconds. Also, the
Bulb and Humidify options can NOT be turned
ON at the same time.
Setting the Bulb Mode
1.
Press the SELECT key to enter menu (display shows
“MENU <--->”.
2.
Press DOWN key until display shows “MENU PRGRM”.
3.
Press the SELECT key to show “PRGRM <--->”.
4.
Press the UP or DOWN key to show the current setting:
• “BULB OFF”
• “BULB ON”
5.
To change the current setting, press SELECT key.
“BULB” will begin to flash in the left display.
6.
Press the UP or DOWN key to scroll the right display to
the desired setting.
7.
To load the new setting, press the ENTER key. The dis-
play briefly shows “BULB LOAD”. When the Bulb
Mode is turned ON, the display then shows “BULB ON”.
NOTE: Setting the Bulb mode to OFF does not
automatically set the Dehumidify mode to OFF
too. To de-activate Dehumidify operation, see
“Dehumidify Mode” earlier in this chapter.
