Trane FARRAR ULC Series Installation and operating instructions

INSTALLATION, OPERATION, AND MAINTENANCE
ULC SERIES
ULTRA LOW STORAGE CHAMBER
ULC-259
ULC-190
ULC-311

ULC SERIES INSTRUCTION MANUAL 02
SAFETY PRECAUTIONS
User Advisory
READ THIS INSTRUCTION MANUAL
Failure to read, understand, and follow the instructions in this manual may result in damage to the unit, injury to operating
personnel, and poor equipment performance.
CAUTION! All internal adjustments and maintenance must be performed by qualified service personnel
When plugged in, there is high voltage present on terminals inside the machine space. Proper care must be taken if the electri-
cal control panels are opened to perform any kind of maintenance.
The material in this manual is for information purposes only. Its contents and the product it describes are subject to change
without notice. FARRAR makes no representations or warranties with respect to this manual. In no event shall FARRAR be held
liable for any damages, direct or incidental, arising out of or related to the use of this manual.
Important operating and/or maintenance instructions. Read the accompanying text carefully. Maintained or serviced
equipment must be turned off and locked out to prevent injury.
Always dissipate high or low temperatures, especially inside the control space before performing any maintenance on the unit.
Before performing maintenance, always do the following:
Use the proper protective equipment (clothing, gloves, goggles, etc.).
Dissipate extreme cold or heat and wear protective clothing.
Follow good hygiene practices.
Each individual is responsible for their own safety.
Do Not Touch
Electrocution
Lock

Powering the Unit 17
System Setup 17
System Health 24
Unit Information 27
Technical Service 28
Starting the Cooling Process 30
Managing User Accounts 30
System Setup 38
Unpacking and Setup 14
Location and Placement 14
Mechanical 15
Electrical 16
Features 4
Refrigeration System 4
Blower 5
Control System 5
Alarms 6
Light Tower 7
External Access Ports 8
Sensor Validation 9
Specifications 10
ULC SERIES INSTRUCTION MANUAL 03
ULC SERIES INSTRUCTION MANUAL
Introduction
Operation
Periodic Cleaning 40
Cleaning the Air-Cooled Condenser 40
Cleaning and Flushing the Water-Cooled Condenser 40
Gasket Maintenance 41
Defrosting the Chamber 42
Vacuum Relief Ports 42
Evaporator Inspection 43
General Maintenance
Installation
North America 45
International 45
Troubleshooting 44
Contacting FARRAR™
Document Revision Table
Appendix A: Icons
Appendix B: Hazard Symbols
46
47
48
49
Warranty 45

Features
ULC SERIES INSTRUCTION MANUAL 04
INTRODUCTION
The FARRAR™ ULC (Ultra-Low Chamber) Series addresses a major shift in the biopharma industry. Manufacturers of these
products want to make and distribute biological and tissue donor samples and materials as fast as possible for process intensifi-
cation and high yields. FARRAR wants to limit handling steps and on-site storage, as well as streamline freezing and cold storage
to avoid bottlenecks (reducing the time to reach temperature set point after opening doors). Additionally, FARRAR wants its
freezers to have the flexibility to meet changing set points and be easy to maintain.
The FARRAR ULC Series meets these requirements. These units are forced-air, low-temperature, long-term storage freezers with
built-in redundancy. Interior chamber temperatures are maintained between +2°C to +8°C and -20°C to -80°C. The ULC Series
chamber consists of two redundant cascade refrigeration systems. There are two condensers, two evaporators, and a total of
four compressors.
There are six models based on cu. ft. of storage:
North American Markets
ULC-190
ULC-259
ULC-311
International Markets
ULC-190i
ULC-259i
ULC-311i
The ULC Series has a wide range of storage and customizable material handling capabilities. The energy-efficient design offers
improved sustainability and helps lower operating costs. The ULC-190 recently earned its ENERGY STAR® certification. It also
offers best-in-class density, which reduces the amount of storage/warehouse space required. Good Manufacturing Practices
(GMP) requirements are maintained across all models without sacrificing performance.
FARRAR ULC Series freezers consist of:
Dual refrigeration systems
Blower
Control system
The user can adjust various settings to suit their specific requirements. These are described in the Operation section of this
manual.
Refrigeration System
Each refrigeration system consists of:
Compressors (move heat)
Evaporator (absorbs heat)
Condenser (rejects heat)
Interstage heat exchanger (transfers heat between stage 1 and stage 2)
Circulating blower (produces air flow)
Pulse width modulation (PWM) valve (controls refrigerant flow)
These components are packaged as one unit. Both systems are located on top of the chamber. Each refrigeration system has its
own electrical power supply and power cord. There are also two LCD controllers (one mounted on each of the exterior doors).
There are two refrigeration systems. When one runs the defrost cycle, the other maintains the freezer temperature. Both refriger-
ation systems work in tandem after the doors are opened to help maintain set points. Therefore, additional cooling capacity is
available when needed, and energy consumption is reduced when at the steady state.

ULC SERIES INSTRUCTION MANUAL 05
Blower
The blower produces a forced air flow of 500 cfm, with an air change every two seconds. This forced convection moves energy
from the container surface to the air. The resulting air circulation moves the energy to the evaporator coil, which then moves to
the evaporator and achieves equilibrium. Conventional freezers rely on natural convection, which is efficient but easily disrupted
when the door is opened. In comparison, forced convection enables temperatures to reach equilibrium faster, even after the door
is opened and shut.
Control System
The controller display provides access to the human-machine interface (HMI) and enables approved users to adjust the
temperature control set point between -20°C to -80°C or +2°C to +8°C. All functions and set points can be accessed on either
of the HMIs located on each of the exterior doors. The displays are synchronized; therefore, any adjustments or set points
programmed on one display will be synchronized automatically on the other. Some parameters, such as the defrost cycle time,
are independently set for each refrigeration system including:
Defrost Cycle Time
Defrost Maximum Time
Defrost End Temp
Single Sided/Double Sided selection
Ignore Door Switch
Calibration Interval/Maintenance Interval
Off/Auto control selection
Alarm Log
Clock Set
Components
Control components include:
Circulation Blower
Main Controller
RTD (resistance temperature detector) Temperature Sensors
Solid State Relay
Miscellaneous/Other Hardware
User Access
The ULC Series is delivered with factory default settings. FARRAR™ recommends proper access control to each user with an
assigned username provided by the facility administrator or operator. If a user does not have sufficient privilege or access
control, then no set points or values can be changed within each of the Liquid Crystal Display (LCD) display controllers; instead,
a warning acknowledgment will display.
Each LCD display will offer a view-only mode to a non-authorized user. A username and password will be assigned and
programmed by the facility administrator. The username and password should be maintained and controlled according to
company protocols.
Automatic Functions
The ULC Series controllers are designed to properly maintain the temperature set point and initiate an automatic defrost of the
evaporator coil for each refrigeration system. During the defrost period, the system blower will be turned off in a manner specific
to the refrigeration system (system A or system B), and defrost mode will activate. The secondary refrigeration system will
operate, and its blower will be energized to maintain the proper temperature set point within the chamber. Defrost cycles are
factory programmed to be enabled every 24 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’s technical support team can assist users with any questions related to controller adjustments
and settings.

ULC SERIES INSTRUCTION MANUAL 06
Alarms
The ULC Series is supplied with remote alarm signaling dry contacts (non-powered). Connections are made to a terminal strip
located on the right side of the unit near the top. Each pair of contacts is electrically isolated from the other contacts.
There are two sets of dry contacts, as shown in Figure 2. One set activates when either door is open, and the other activates for
any alarm condition. Both sets of contacts are normally open when the chamber is powered off. More details are provided in the
Terminal Positions and Descriptions table.
The ULC Series internal blower will automatically turn off when either of the two exterior doors are opened. When one of the two
exterior doors is opened, the LCD screen displays 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 display
changes from a “Warning” to the “Alarm” condition, and the color of the light bar will change from yellow to red. There is also an
audible alarm to notify the user of an alarm condition. Additional warning and alarm status items can be found in the Alarms
section of this manual.
The blower circulates air flow throughout the chamber. Should the temperature deviate more than +3°C from the set point (this
value is adjustable to 0 to 40°C), the controller is designed to start both refrigeration systems automatically in order to reach and
maintain the control set point temperature.
Figure 1: Remote Alarm

Light Tower
Figure 2: Dry Contacts
Figure 3: Light Tower (located between the doors)
ULC SERIES INSTRUCTION MANUAL 07
1 2 3 4 5 6
(RED) (BLU) (YEL) (GRN)
Terminal Positions and Descriptions
Terminals Position Description
1-2 Open
1-2 Closed
5-6 Open
5-6 Closed
Doors are open
Doors are closed
General alarm
No alarm conditions

External Access Ports
Two front access ports on the cabinet allow for usage of a building management system (BMS) or supervisory control and data
acquisition (SCADA) temperature monitoring probe. Each port is 0.875-in. (2.22 cm) in diameter and is located between the
exterior doors of the ULC Series. The access ports are plugged with rubber stoppers on the exterior and interior and are insulated
to reduce moisture infiltration. After installing a sensor in an external port, replace the insulation and seal the port both inside
and outside of the cabinet to reduce moisture infiltration.
Note: Customer BMS probe/sensor should be routed from the top of the ULC chamber, next to each refrigeration system probe.
The front ports are to be used when performing temperature mapping only.
Failure to properly seal the access port on both the interior and exterior will result in moisture infiltration, degrading the perfor-
mance of the unit. Moisture leads to ice buildup on metal surfaces, including the evaporator coil. If the moisture is uncontrolled,
the ice buildup on the coil will begin to limit refrigeration capacity (i.e., a reduced surface area for heat transfer).
Note: When a refrigeration system is defrosting, the warning light on the light tower and display will illuminate. The defrosting
system cannot assist in the chamber temperature recovery during that period (approximately 15 minutes).
*When the Refrigeration System Failed alarm occurs, the affected system switches from AUTO to OFF. Refer to the
Troubleshooting section of this manual for further information on system failures.
The Alarm and Indicator Light Descriptions table describes the conditions that trigger the alarms and indicator lights.
Figure 4: Exterior Sensor Access Port
ULC SERIES INSTRUCTION MANUAL 08
Alarm and Indicator Light Descriptions
Power Fail
Temperature High Alarm
Temperature Low Alarm
Door Open
Door Open Too Long
Refrigeration System Failure*
Defrost in Progress
Refrigeration Assist System A & B
System Operating Normally
Preventative Maintenance Reminder
Calibration Reminder
V/C
A/V/C
A/V/C
V/C
A/V/C
A/V/C
V
-
V
V
V
V/C
A/V/C
A/V/C
V/C
A/V/C
A/V/C
V
-
V
V
V
-
Red
Red
Yellow
Red
Red
Yellow
Green
Green
Green
Green
-
Alarm Icon
Alarm Icon
Warning Icon
Alarm Icon
Alarm Icon
Warning Icon
-
No Alarm or Warning
Service Icon
Service Icon
-
-80°C to 30°C
+10°C to -40°C
Instantaneous
5-300 seconds
-
-
0°C to 40°C
-
1 to 240 months
1 to 240 months
Alarm/Indicator System A System B Light Tower Displays Settable Range
A = Audible Alarm V = Visual Alarm C = Dry Contacts Switch

Storage Capacity and Dimensions
Exterior Dimensions (Does not include refrigeration sections)
Width
lbs.
kg
-
133.125 (in.)
3,381 (mm)
3,500
1,588
122 (in.)
3,098 (mm)
3,150
1,492
128 (in.)
3,251 (mm)
Height 84.625 (in.)
2,151 (mm)
102 (in.)
2,592 (mm)
102 (in.)
2,592 (mm)
Depth 76.25 (in.)
1,935 (mm)
60.25 (in.)
1,528 (mm)
76.25 (in.)
1,926 (mm)
Exterior Dimensions (Includes refrigeration sections)
Width
-
133.125 (in.)
3,381 (mm)
\
122 (in.)
3,098 (mm)
128 (in.)
3,251 (mm)
Height 127.25 (in.)
3.234 (mm)
147 (in.)
3,738 (mm)
147 (in.)
3,738 (mm)
Depth 76.25 (in.)
1,935 (mm)
60.25 (in.)
1,528 (mm)
76.25 (in.)
1,926 (mm)
Interior
Unit Weight
Width
-
121 (in.)
3,073 (mm)
110 (in.)
2,794 (mm)
116 (in.)
2,946 (mm)
Height 68.625 (in.)
1,741 (mm)
86.25 (in.)
2,193 (mm)
84.75 (in.)
2,151 (mm)
Depth 54 (in.)
1,741 (mm)
38 (in.)
864 (mm)
54 (in.)
1,371 (mm)
3,900
1,769
lbs.
kg
4,100
1,860
3,900
1,769
Shipping Weight
4,500
2,132
sq. ft.
mm2
55.6
5.17
47
5.17
Area Footprint
67.5
6.28
cu. ft.
Liter
259
7,334
190
5,380
Total Volume
311
8,806
ULC Series Model 259 190 311
Sensor Validation
The ULC Series has an independent control/display sensor (100 OHM 3 wire Platinum RTD, +/- 0.15°C). Calibration is conducted
by accessing the HMI through the LCD displays. Refer to the Calibration and Maintenance section of this manual for further
information on unit calibration.
Specifications
The following tables outline the specifications for the ULC Series.
ULC SERIES INSTRUCTION MANUAL 09

Storage Capacity and Dimensions (cont.)
Chamber Wall Thickness 6 (in.)
152.4 (mm)
6 (in.)
152.4 (mm)
6 (in.)
152.4 (mm)
Door Opening
46 W x 67 H (in.) /
1,168 W x 1,702 H (mm)
x 2 doors
41 W x 87 H (in.) /
1,041 W x 2,210 H (mm)
x 2 doors
44 W x 87 H (in.) /
1,118 W x 2,210 H (mm)
x 2 doors
Ambient Conditions
18°C to 30°C
70% RH Max
NOTE: FOR INDOOR
USE ONLY
Pollution Degree 2
18°C to 30°C
70% RH Max
NOTE: FOR INDOOR
USE ONLY
Pollution Degree 2
18°C to 30°C
70% RH Max
NOTE: FOR INDOOR
USE ONLY
Pollution Degree 2
sq. ft.
m²
70.5
6.5
51.0
4.7
Chamber Floor Space
67.8
6.3
2 in. Freezer Boxes
3 in. Freezer Boxes
3,920
2,520
3,430
2,058
Box Capacity
4,900
2,940
81 Vials in 2 in. box
81 Vials in 3 in. box
317,250
204,120
277,830
166,698
Vial Capacity
396,900
238,140
Inventory Racks for 2 in. boxes (not included)
Inventory Racks for 3 in. boxes (not included)
112
168
70
98
140
196
ULC Series Model 259 190 311
Application and Electrical Requirements
Application Pharmaceutical, Biopharmaceutical, Biorepository, Bio-Logistics
North America 208-230VAC, 1 Ø, Single Phase, 60 Hz
International 230VAC, Single Phase, 50 Hz
Circuit Breaker 2 x 30 amp
Electrical Breaker 30A, 60 Hz. (32A, 50 Hz)/ 2 Circuits
Temperature Control Range -20°C to -80°C
+2°C to +8°C
Ambient Operating Temperature +18°C to +30°C
Noise level 65 dB(A)
Electrical Requirements
Electrical ULC/ULCi
208-230 VAC, 1 Ø, 60 Hz / 2
230 VAC, 1 Ø, 50 Hz / 2
Mains Supply Fluctuation +/- 10%
Overvoltage Category II
ULC SERIES INSTRUCTION MANUAL 10

ULC Series Material Handling Solution
Positioning 4 across by 6 high
@ 10 (in.) increments
Adjustable
@ 1 (in.) increments
Type Sliding (individually)
Stainless Steel (1 in.)
Weight Capacity:
300 lbs./ 136 kg.
Pallet (capacity)
Size (in.)
Size (mm)
55 ⅛ x 40 ½
1,400 x 1,029
54 x 36
1,372 x 914
Shelves
40 H x 48 W x 36 D
1,016 H x 1,219 W x 914 D
Qty/Type
Size (in.)
6 shelves, 10 (in.) / 254 (mm)
49 ⅜ D x 20 ⅜ W x 51 ¼ H
4 shelves, 8 (in.) / 457 (mm)
36 ¾ D x 33 W x 61 ½ H
Product Cart
Transfer Cart
4 shelves, 18 (in.) / 457 (mm)
51 ½ D x 21 W x 61 ½ H
Size (mm) 1,229 x 517 x 1,302 934 D x 838 W x 1,562 H 1,308 D x 534 W x 1,562 H
Size (in.) 41 ⅙ D x 39 W x 45 ⅛ H
1,043 D x 991 W x 1,146 H
27 W x 56 D x 45 ⅛
686 W x 1,423 D x 1,146 H
41 D x 39 W x 45 ⅛ H
1,043 D x 0991 W x 1,146 H
Size (mm)
ULC Model 259 190 311
Refrigeration Systems
Scroll Compressors Qty 4
Refrigeration Systems Qty 2
Evaporator/QTY=2 Forced-Air
Condenser/QTY=2 Forced-Air-Cooled or Water
Metering Device Electronic
Refrigerant: High Stage R449
Refrigerant: Low Stage R-290 & R508B (HFC)
Noise level 65 dB(A)
Blower Motor
Qty 2
500 cfm
14,158 l/min
Requirements
*Tower water:
Water temperature ≤30°C
Maximum flow rate = 7 gpm (27 LPM)
Average flow rate = 4.5 gpm (17 LPM)
*Chilled water:
Water temperature ≤10°C
Maximum flow rate = 3.5 gpm (14 LOM)
Average flow rate = 2.0 gpm (8 LPM)
ULC SERIES INSTRUCTION MANUAL 11

Order Information
Description
ULC Series ULC-259 Models ULC-190 Models ULC-311 Models
259-AC 259-WC 259i-AC 259i-WC 190-AC 190-WC 190i-AC 190i-WC 311-AC 311-WC 311i-AC 311i-WC
Air-Cooled
Water-Cooled
R508B and Oil Additive
208-230VAC – 1 Phase – 60 Hz
230VAC – 1 Phase – 50 Hz
Amps (FLA) / Breaker
2 x 24 FLA / 30A
2 x 24 FLA / 32A
Performance Data
Uniformity Air Temperature +/- 3°C (empty chamber)
Temperature Control +/- 1.0°C
Warranty, North America (U.S. and Canada) 1-year parts and labor
Warranty, International 1-year parts only
Temperature Control Range -20°C to -80°C @ 1°C increments +2°C to +8°C
Temperature Minimum Set Point -80°C
Temperature Pull Down Time From +20°C to -80°C within 4 hrs. - 25 min.
Temperature Air Stability at -80°C +/- 3°C Uniformity
Temperature Air Stability at -20°C +/- 5°C Uniformity
Power Failure Warm Up from -80°C to -50°C 6 Hours
Temperature Recovery to -80°C from 30 sec. Door Opening 25 Minutes (empty chamber)
Temperature Recovery to -80°C from 60 sec. Door Opening 35 Minutes (empty chamber)
Power Consumption
Energy Consumption per cu. ft. Awaiting Energy
Star® Test Result
E-Star certified
at 0.3 kWh/cu. ft. 0.33 kWh/cu. ft.
During Power Off All ULC operations and displays are Off
Dry Alarm Contacts
Screw Terminals - C / NO
1st set of contacts will change state from closed to open when
either or both chamber doors are open. The contacts will close
when both chamber doors are closed.
2nd set of contacts will change state from closed to open when a
“General Alarm Signal” is generated by the ULC (High temperature,
door open too long failed refrigeration system, etc.).
Power Receptacle Location
At least 3 ft. (1 m) clearance in front of receptacle, with a 30 in.
(75 cm) wide working space and headroom at least the height of
the equipment. Electrical cord supplied with unit is 12' (3.7M).
Digital Connectivity
Modbus TCP/IP Protocol.
If the optional FARRAR Remote Predictive Monitoring Analytic
Solution or Monitoring Hardware Solution is purchased, then each
refrigeration unit will require a hardwired RJ45 internet connection.
ULC Model 259 190 311
ULC SERIES INSTRUCTION MANUAL 12
Cooling Assist Mode If Air Temperature is > 3°C from set point / Both System A
& System B Operational (User Adjustable)

Construction
Chamber Exterior Material Painted Aluminum - White Embossed Finish
Chamber Interior Material Painted Aluminum - White Embossed Finish
Load Capacity per Chamber Side 2,000 / 907 (4,000 / 1,814 total)
Controller
Temperature Controller/QTY Microprocessor (2)
Water-Cooler Condenser
Temperature Controller/QTY
4 x 0.5 (in.) FPT connections (2 per refrigeration system
Pressure differential = approximately 20 PSI (1.4 bar)
Tower water:*
Water temperature 85°F. Maximum flow rate = 7 GPM (26.5 LPM)
Average flow rate = 4.5 GPM (17 LPM)
Chilled water:*
Water temperature ≤10°C
Maximum flow rate = 3.5 GPM (14 LPM)
Average flow rate = 2.0 GPM (8 LPM)
*Total for both refrigeration systems
Heat Rejection @ -80ºC Maximum:
= 28,000 Btu/hr. (8.2 kW/hr.) to water
= 1,800 Btu/hr. (0.52 kW/hr.) to ambient
Minimum Normal Operation, 1 system @ 75-80%:
= 12,000 Btu/hr. (3.5 kW/hr.) to water
> 900 Btu/hr. (0.26 kW/hr.) to ambient
Average - Normal Operation, 1-2 Door opening/hr.,1 System Defrost:
= 14,000 Btu/hr. (4.1 kW/hr.) to water
= 1,000 Btu/hr. (0.29 kW/hr.) to ambient
Displays 5.7 (in.) LCD (2)
Modbus TCP/IP Communication Protocol
Alarms Refrigeration system failure, high-low temperature, door ajar,
power failure, remote alarm contacts
Thermal Room Load: Water-Cooled <1,550 Btu/hr.
0.44 kW/hr. Maximum
Air-Cooled Condenser
Heat Rejection @ -80ºC:
Maximum* = 28,000 Btu/hr. (8.2 kW/hr.)
Minimum = 12,000 Btu/hr. (3.5 kW/hr.)
Average = 14,000 Btu/hr. (4.1 kW/hr.)
*When both machine sections are running
Dry Contacts Standard (C, NO, NC)
ULC SERIES INSTRUCTION MANUAL 13

ULC SERIES INSTRUCTION MANUAL 14
INSTALLATION
Unpacking and Setup
Confirm that this item was thoroughly inspected and carefully packed prior to shipment, and that all necessary precautions were
taken to ensure safe arrival. Immediately upon receipt, and before the unit is moved from the receiving area, carefully examine
the shipment for loss or damage. Unpack the shipment and inspect both interior and exterior for any in-transit damage.
If any loss or damage is discovered, note any discrepancies in the delivery receipt and call the delivering carrier to request their
representative perform an inspection. Do not discard any of the packing material and do not move the shipment from the receiv-
ing area prior to its inspection. Document any problems in writing with photos.
For products shipped Free Carrier (FCA) to Marietta, Ohio, the responsibility of FARRAR™ ends when the merchandise is loaded
onto the carrier's vehicle. For Free on Board (FOB) Destination shipments, the responsibility of FARRAR and the carrier ends
when the receiving department personnel sign a free and clear delivery receipt.
Location and Placement
Before placing the unit, install the FARRAR lifts on the side or ends of the chamber. Use the FARRAR hydraulic lifts to raise, move,
and rotate the unit into place.
Unit clearance requirements are as follows:
Unit Clearance Requirements
ULC Model 259 190 311
Sides of all units
Top of all units
Back of unit per model 2 in. (5 cm) 14 in. (36 cm) 2 in. (5 cm)
12 in. (30 cm) 12 in. (30 cm) 12 in. (30 cm)
14 in. (36 cm) 14 in. (36 cm) 14 in. (36 cm)
11 ft. 7.25 in. (3.53 m) 13 ft. 4 in. (4 m) 13 ft. 4 in. (4 m)
Overall minimum height of
location, floor to ceiling, per model

The inlet and outlet water connections for the water-cooled system are located on the top of each refrigeration system as
shown in Figure 5. The connections are 0.5 in. FPT.
To allow for movement of the equipment during servicing, FARRAR recommends using 0.5 in. industrial grade flexible hose, 8
ft. (2.5 m) in length. An adapter from imperial to metric is included for each fitting.
FARRAR strongly recommends installing a 0.5-in. ball valve at the water inlet, along with a strainer and pressure gauge, as
shown in Figure 6. These will facilitate any servicing or testing requirements.
Check all connections for leaks. Verify that the water differential pressure is adequate along with nominal flow and tempera-
ture requirements (see Specifications in this manual).
Optional drain pan assembly for +2°C to +8°C operation and -20°C operation.
For units that operate in unconditioned facilities, it is recommended that the drain line be piped to a facility drain for proper
operation of the unit.
Figure 5: Ball Valve, Strainer, Pressure Gauge
Figure 6: Optional Drain Pan Assembly for +2 to +8°C and -20°C
Operation/Recommended for Unconditioned Spaces
20
40
60
80 100 120
140
160
180
200
Ball Valve
Strainer
Pressure Gauge
ULC SERIES INSTRUCTION MANUAL 15
Mechanical
PARTS LIST
QTY
PART NUMBER
DESCRIPTION
ITEM
18008135
DUCK BILL VALVE
1
17410245TEE FITTING, BARBED, HIGH PRESSURE, 3/4 PIPE, PVC2
17410246ELBOW, BARBED, 90 DEG, HIGH PRESSURE, 3/4 PIPE, PVC3
27410278ELBOW, ADAPTER, 3/4 SOCKET FEMALE x 3/4 NPT FEMALE4
27410277
ADAPTER, 3/4" HOSE ID, 3/4 NPT MALE
5
77410239
HOSE CLAMP, 301 SS, 13/16" TO 1-1/2", 1/2" BAND WIDTH
6
21340016
CONDUIT CLAMPING HANGER 3/4"EMT (1-1/16"ID)
7
17410279PVC PIPE, SCHEDULE 40, 3/4"8
14490392DRAIN TUBE, DRAIN LINE9
14490393DRAIN TUBE, DRAIN LINE10
14490582DRAIN TUBE, DRAIN LINE11
SIZE
B4490590
DWG NO
A
REV
DRAIN KIT, ULC-259
DRAWN BY
C. NEUHART
APPROVED BY
B. IRWIN
REFERENCE
N/A
DRAWN DATE
8/14/2023
APPROVAL DATE
8/14/2023
1 / 5
SCALE SHEET 1 OF 1
.X ±.1
.XX ±.03
.XXX ±.015
.XXXX ±.0005
ANGLE ±1o
FRACTIONAL ±1/16
DIMENSIONS ARE IN INCHE S
UNLESS OTHERWISE SPECIFIED
TOLERANCES THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION AND SUCH IS NOT TO BE DISCLOSED
TO OTHERS FOR ANY PURPOSE OR USED FOR
MANUFACTURING PURPOSES WITHOUT THE
WRITTEN PERMISSION OF TRANE TECHNOLOGIES.
30765 OH-7 | MARIETTA, OH | 45750 | ph. 740.374.8300 | fx. 740.374.8310
REVISION HISTORY
REV DESCRIPTION BY DATE APPROVED
A PROTOTYPE RELEASE CJN 8/14/2023 BTI
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Connect each refrigeration system to a separate receptacle’s 30 Amp (32 Amp, 50 Hz) 208-230 VAC 2 pole, 2 wires + GND
(3-wire receptacle).
Note: The ULC Series must be powered by two separate single-phase circuits.
Figure 7 and Figure 8 show the plugs used on all ULC Series units (depending on purchase location).
Figure 8: IEC 60309 Plug (International)
ULC SERIES INSTRUCTION MANUAL 16
Electrical
Figure 7: NEMA L6-30P, Locking Plus (North America)

System Health
ULC SERIES INSTRUCTION MANUAL 17
OPERATION
Powering the Unit
Electrical power is provided via a power cord. Internally, power passes through a 2-pole main circuit breaker, which is accessi-
ble inside the main control enclosure.
To turn off power to the unit, unplug the power cord from the wall receptacle.
System Setup
All system operation is performed using the door-mounted touch screen displays. A list of icons is available in Appendix A:
Icons.
Once the system is set up, plug the power cord(s) into the properly sized receptacles.
The door mounted displays will turn on and display the HOME screen, as shown in Figure 9. The current interior
chamber temperature will display.
To initiate system setup, press the SETUP icon in the bottom-left corner of the HOME screen.
Note: All settings may be returned to factory default settings.
Note: Operator privileges or above will be required to make changes to any of the controller settings. User access will return to
View Only if the controller is left unattended for more than 5 minutes.
Figure 9: Home Screen
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Technical ServiceSetup
Unit Information

Figure 10: Set Point Setup Screen
Previous Screen
Next Screen
ULC SERIES INSTRUCTION MANUAL 18
Set Point Setup
Complete the following steps to input temperature values:
Touch the ALARM HIGH display to enter the high temperature alarm set point using the numerical keypad. Press ENT
to save.
Note: The available range is +30°C to -80°C. The Factory Default value is 30°C.
Touch the TEMP SET POINT display to enter the chamber control temperature using the numerical keypad. Press
ENT to save.
Note: User has two available ranges: -20°C to -80°C and +2 to +8. The Factory Default setting is -80°C.
Touch the ALARM LOW display to enter the low temperature alarm set point using the keypad. Press ENT to save.
Note: The available range is +10°C to -99°C. The Factory Default is -88°C.
Touch the REFRIG ASSIST display to enter the temperature warmup above TEMP SET POINT that will cause the
standby system to turn on. Press ENT to save.
Note: The available range is 0°C to +40°C. The Factory Default is 3°C and should not be changed without consulting
FARRAR.
Note: When the chamber warms up to the programmed REFRIG ASSIST temperature, the Standby system will run to
assist the Primary system with returning the chamber to the temperature set point.
Press the right arrow to go to the next screen.
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Internal Chamber
Temperature
Home Screen

Figure 11: Alarm Setup Screen
ULC SERIES INSTRUCTION MANUAL 19
Alarm Setup
Complete the following steps to set up alarms:
Touch the TEMP ALARM DELAY display to enter the time permitted before the High Temperature or Low Temperature
alarm condition causes the audible and visual alarms to activate.
Note: The available range is 0 to 9999 minutes. The Factory Default is 5 minutes.
Touch the DOOR OPEN DELAY to enter the time permitted before an open chamber door causes the Door Open Too
Long alarm to activate.
Note: The available range is 5 to 300 seconds. The Factory Default is 30 seconds.
Touch the RING BACK DELAY display to enter the amount of time before the unit re-enables the audible alarm
after it is silenced by a user.
Note: The available range is 1 to 3,000 minutes. The Factory Default is 1 minute.
Press ENT to save all alarms.
Press the right arrow to go to the next screen.
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Figure 12: Defrost Setup Screen
ULC SERIES INSTRUCTION MANUAL 20
Defrost Setup
Complete the following steps to set up defrosting settings:
Touch the DEFROST CYCLE TIME display to enter the length of time between automatic defrosts.
Note: The available range is 2 to 168 hours. The Factory Default and recommended setting is 24 hours and should not
be changed without consulting FARRAR.
Touch the DEFROST MAX TIME display to enter the length of the defrost cycle.
Note: The available range is 5 to 60 minutes. The Factory Default and recommended setting is 30 minutes, and it
should not be changed without consulting FARRAR.
Note: When the coil temperatures warm to the designated defrost levels, defrosting is (typically) terminated
automatically.
Touch the DEFROST END TEMP display to enter the defrost automatic termination temperature.
Note: The available range is 0°C to +40°C. The Factory Default and recommended setting is 5°C and should not be
changed without consulting FARRAR.
Press the right arrow to go to the next screen.
Note: Only the cooling coils (evaporators) are defrosted by the automatic defrost system. This keeps the coils clear in order to
maintain air flow through the chamber. Over time, the chamber walls, shelves, doors, etc., will be covered with ice/snow that
must be removed manually. See the General Maintenance section of this manual for chamber defrosting instructions.
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