Model ULC Series
06012021ULC,Rev i
Page 7 of 54
The blower motor circulates airflow throughout the chamber and, should the temperature deviate for more
than +3°C from setpoint (adjustable), the controller is designed to automatically start both refrigeration
systems in order to reach and maintain temperature of control setpoint e.g. -70°C.The ULC Series controllers
are designed to properly maintain the temperature setpoint and automatically initiate an automatic defrost of
the evaporator coil for each refrigeration system. During the defrost period, the system blower motor will be
turned off specific to the refrigeration system (system A or system B) in defrost mode. The secondary
refrigeration system will operate and its blower motor will be energized to maintain proper temperature set
point within the chamber. Defrost cycles are factory programmed to be enabled every 12 hours. However, the
defrost cycles can be modified by the end user to occur every 2 to 168 hours, depending on the following:
ambient moisture, frequency of door openings and/or warm product being placed inside the ULC Series.
Farrar Scientific technical support team can assist users with any questions related to controller adjustments
and settings.
The ULC series internal blower motor will automatically turn off when either of the two exterior doors are
opened. Should one of the two exterior doors be opened, the Controller LCD will display a “warning” icon,
along with a “Yellow” light indicator on the light bar located in the top middle of both doors. Should the door
remain open for too long (user adjustable setting from 5 to 300 sec.) the Controller display will change from a
“Warning” to an “Alarm” condition, and the light bar will change from “Yellow” to “Red”, including an audible
alarm to notify local user of an alarm condition. Additional warming and alarm status items can be found in
Section 8 of this manual.
3.0 Specifications
ULC Series
Exterior Dimensions incl. refrigeration systems
in / mm
122 x 60 x 150 / 3098 x 1524 x 3810 (W x D x H)
Exterior Dimensions- Chamber/latch only
in / mm
122 x 60 x 102 / 3098 x 1524 x 2591 (W x D x H)
Interior Dimensions
in / mm
110 x 38 x 90 / 2794 x 927 x 2286 (W x D x H)
Chamber Volume
ft³ / l
199 / 5635
Storage Volume
ft³ / l
190 / 5380
Chamber Floor Space
ft² / m²
47 / 4.36
Door Opening
in / mm -Qty
42 / 1067 W x 87/ 2210 H x 2 door
Chamber Wall Thickness
in / mm
6 / 152.4
Net Weight
lbs / kg
3000 / 1360.8
Ambient Conditions
°C/%RH
18°C to 30°C / 70%RH Max
NOTE: FOR INDOOR USE ONLY
Pollution Degree 2
2" Box Capacity
Not Included
Qty
2,880
3" Box Capacity
Not Included
Qty
2,400
Inventory Racks for 2" Boxes-
Not Included
Qty
96
Inventory Racks for 3" Boxes-
Not Included
Qty
80
Vial Space- 2” / 3” Box
Qty
288,000/ 240,000
Electrical
Electrical ULC/ ULCi
V / Hz /Qty
208-230 VAC, 1 Ø, 60 Hz / 2,
230 VAC, 1 Ø, 50 Hz / 2
Mains Supply Fluct/- 10%
Overvoltage Category II
Electrical breakers
Amp/ Qty
30A, 60Hz. (32A, 50HZ)/ 2 Circuits;
Noise level
dB(A)
65
