Thermo King CSR Series User Manual

MP-3000 Controller
74
AFAM+ Settings
The AFAM option submenu is factory set to
AFAM+. The controller then adds the AFAM,
AFAM Delay, AFAM Rate, O
2
Min and CO
2
Max
submenus to the Setpoint menu. If a replacement
controller or new software is installed, a controller
auto configuration will detect the AFAM+ option
when the AFAM door control module and gas
sensor are connected to the controller. When an
auto configuration is per-formed, the controller
sets the AFAM Option in the Configuration menu
to Analyzer. To operate the AFAM+ system, the
AFAM Option must be manually set to AFAM+.
• Analyzer: This setting turns on data logging
for O
2
and CO
2
gas levels only. The AFAM+
system does not operate.
• AFAM+: This setting turns on the AFAM+
system to control O
2
and CO
2
gas levels. The
controller then adds O
2
Min and CO
2
Max
submenus to the “SETPOINT” display in
addition to the AFAM, AFAM Delay and
AFAM Rate submenus.
The default setting for AFAM in the Setpoint
menu is the last value set (Off, Units or Demand).
AFAM must be set to Demand to control the vent
door to the O
2
and CO
2
gas levels.
AFAM or AFAM+ Operation
The system is precalibrated for air exchange rates
of 0 to 280 m 3 /hr (0 to 165 ft 3 /min.). The actual
door position is based on the air exchange setting,
the power supply frequency (Hertz).
If the controller identifies a component failure
during unit startup, an alarm is recorded in the
controller display and data-logger memory. If a
power loss occurs after the AFAM system is
turned on, the controller automatically operates
the vent door based on the previous AFAM Delay
and AFAM Rate settings when power is restored.
Starting the AFAM or AFAM+ System
1. Press the S
ETPOINT key. The Setpoint menu
appears with the cursor in the “TEMP SETP”
line.
2. Press F2 key to scroll to “AFAM” line.
3. To change the mode setting, press F4 key.
Cursor moves to end of menu line and flashes.
4. Press F2 key to toggle between “OFF”,
“DEMAND” and “UNITS”.
•“OFF”: Vent door closes and/or remains
closed. AFAM Delay and AFAM Rate
settings become blank (“--”). If gas sensor
unit is installed on unit, the O
2
Min and
CO
2
Max settings also become blank.
•“DEMAND”: Controller uses the O
2
and
CO
2
gas levels to adjust the vent door
position.
•“UNITS”: Controller uses the fresh air
exchange rate to adjust the vent door
position. If a gas sensor unit is installed on
the unit, control of the O
2
and CO
2
gas
levels remains Off.
5. With the desired state in the menu line, press
and hold F4 key until cursor stops flashing.
New mode setting appears in display.
6. Press ESC key to exit the Setpoint screen.
Changing the AFAM Delay
NOTE: The fresh air exchange time delay
should be established by the shipper.
The AFAM delay setting keeps the fresh air vent
closed for a preset time when the unit starts. This
allows faster product temperature pull-down. The
AFAM delay can be set from 1 to 72 hours in
1-hour increments.
NOTE: During unit startup, the AFAM delay
prevents the AFAM door from opening until the
delay times out. The AFAM delay prevents the
AFAM door from opening due to the AFAM
Rate, O
2
, or CO
2
system settings.
1. Press the S
ETPOINT key. The Setpoint menu
appears with the cursor in the “TEMP SETP”
line.
WARNING: The vent door and motor
actuator arm move immediately when the
F4 key is pressed to turn the AFAM system
to Demand, Units or Off. Keep hands and
tools away from the air exchange system
components to prevent personal injury or
unit damage.

Thermo King CSR Series Specifications

General

Brand	Thermo King
Model	CSR Series
Category	Refrigerator
Language	English