Mobile Air Conditioners

ULCR60CA 60K BTU 208~230 VAC, 3-phase, 60 Hz, constant run ECU
[ULCR60CA]

ULCR60CA 60K BTU 208~230 VAC, 3-phase, 60 Hz, constant run ECU

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MANUFACTURER: Air Rover
PART / MODEL #: ULCR60CA

Performance

Cooling Capacity @ 80oF dry bulb, 67oF wet bulb, 95oF ambient 62,000 BTU/Hr
Cooling Capacity @ 80oF dry bulb, 67oF wet bulb, 120oF ambient 55,000 BTU/Hr
Heating Capacity N/A
Operating Conditions 50oF to 150oF
Operating Conditions (w/ low ambient control) -30oF to 150oF
Air Flow (CFM) 2300 evap., 3500 cond.

Electrical

Operating Voltage 208/230 VAC
Phase 3
Frequency 60 Hz
Max Operating Current 46.2 Amps @ 230VAC
Power @ 230VAC, 80oF dry bulb, 67oF wet bulb, 95oF ambient 14.7 kW
Electric Heat N/A
Circuit Breaker Size (or Fuse Size) 63 Amps
Supply Wire Size #6

Product Overview

Controls Mode Selector

Systems are controlled by a control box that can either be placed within the ECU cabinet or used remotely by means of an extension cable. One toggle switch is used to power the system by means of a low voltage circuit. Another toggle switch is use to select between three modes of operation (Vent Mode, Cooling Mode or Heating Mode).

Conditioned Air Thermostat

Indoor temperature is controlled by a Johnson Controls System 350 Electronic Temperature Controller.

High Pressure Cutout

The systems are protected by a manual reset high pressure switch, which is set to actuate at 440 psig.

Low Pressure Cutout

The systems are protected by an auto reset low pressure switch, which is set to open at 10 psig and reset at 25 psig.

Heater high limit cutout (if applicable)

Each individual resistance heat element is controlled primarily by a Therm-O-Disc auto reset temperature limit switch, which will open the low voltage control circuit if extreme temperatures are present. Secondary limits are also incorporated in the event that the primary limits fail to actuate. The secondary limits are a non-resetable thermal cut-offs that open the primary line voltage to the element.

Refrigeration System

Systems are of the Vapor Compression type and use R134a refrigerant for high ambient operation. An ASME-UV/NB certified pressure relief valve (if applicable) is supplied, located within the condenser section, to safely expel refrigerant prior to the rupture of any system components (applied in accordance with the American Standard Safety Code for Mechanical Refrigeration ANSI/ASHRAE 15). Systems are supplied with a full charge of refrigerant conforming to ARI 700. The refrigerant systems can be serviced through 1/2" standard flare type fittings.

Transportation and Vibration

ECUs are certified to withstand MIL-STD-810-F. System cabinets are constructed of rugged and light weight aluminum (AL 5052-H32). Refrigerant piping contains vibration absorption loops for relief and are protected where abrasion is a factor. Motors are of the direct drive type to eliminate alignment issues and are mounted to withstand field abuse.

Noise

All models run well under the required dB ratings specified. None of the models provided by Air Rover exceed 60 dB (A) at 1 meter from any point on the perimeter of the evaporator side of the ECU housing. 72 dB (A) at 1 meter from any point on the perimeter of the condenser side of the ECU housing.

Reliability and Maintainability

ECUs are equipped with washable filters, protecting both indoor and outdoor coils. All access panels are fastened with Fast-lead Thread Screws to facilitate quick removal during system servicing. Pressure taps are located in a recessed panel to be accessed without the removal of service panels.

Mean-Time Between Failures

The minimum mean-time-between-failure of the Air Rover ECUs meets or exceeds the USMC requirement of 7,200 hours @ 80% reliability.

Maintenance Ratio

The Air Rover family of ECUs has a maintenance ratio of 0.017 Maintenance man-hours per Operating Hour.

Scheduled Maintenance

The Air Rover family of ECUs requires scheduled maintenance once every 250 hours of operation. Scheduled maintenance includes checking and cleaning the evaporative and condenser filters.

Evaporator Compartment Sealing

The evaporator compartment door panels are sealed using a cross-linked Polyethylene weather stripping. Air leakage in the Evaporator compartment is certified not to exceed 20 standard cubic feet per minute (SCFM) when the evaporator compartment is subjected to an internal static pressure of 1.0 in. Evaporator sections are sealed with a closed-cell insulation material.

Electrical System

Electrical systems are designed to be in compliance with National Electric Code (NFPA), UL1950 and UL1995. All wiring is bundled and tied. Isolators are used to insulate between metal components to prevent abrasive action to the wire insulation. All wiring is color coded and well documented within an easy to follow wiring schematic that is supplied within the electrical enclosure. Wires are numbered and to correspond to the electrical schematics supplied with the units.

Safety

ECUs are designed in accordance with UL1995 Heating and Cooling Equipment. A great effort has been taken to assure that these ECUs can be safely installed, operated, and maintained. Electrical Operators are not exposed to any live uninsulated components while operating or servicing the ECU. Filters are easily removed for cleaning from access panels that are opened without exposing any electrical components of the system. Remote control boxes, where used, utilize low voltage current (24V AC) and are grounded back to the ECU through the extension cable. A circuit breaker is installed on the ECU that, when activated, cuts off all power to the ECU.

Mechanical Safety Provided During Service

All filters are accessed without exposing service personnel to live or rotating components. Refrigerant pressures are checked without removing any service panels. All service panels can be quickly removed, with the use of fast-lead screws, if needed to gain access to components within the system from all four sides of the cabinet.

Insulating of high temperature components

All high temperature components are safely enclosed and protected to avoid exposure to operators.

Guarding of rotating parts

All guards of rotating parts will be capable of withstanding a 200 lb load within a 6" diameter area located in the most vulnerable position (UL 1995 section 54 Loading Test).

Venting of pressurized components

Some units are equipped with an ASME-UV/NB certified pressure relief valve, located within the condenser section, to safely expel refrigerant prior to the rupture of any system components (applied in accordance with the American Standard Safety Code for Mechanical Refrigeration (ANSI/ASHRAE 15).

Lift Provisions

These ECUs are supplied with a permanently mounted skid base. This base is manufactured with welded 14 Gage G90 steel which is then powder coat paint finished to match the ECU and to provide added corrosion protection. The skid base is forklift accessible from all sides with forklift pockets provided on two sides. Forklift pockets are 8 in. in width by 3 in. high spaced 13 in. to 18 in. apart depending on the model. The skid assembly has lifting and tie down rings in accordance with MIL-STD-209.

Fresh Air Inlet

Fresh air inlet dampers are available as an option on any of the four ECUs. These dampers will facilitate the introduction of outdoor air into the evaporator compartment.

Evaporator and Condenser Compartment Airflow

Evaporator air - Horizontally returned discharged A blow (push) through configuration is utilized to put a positive pressure on all condensate drain taps. This is done to reduce the ECU's susceptibility to drain pan overflow.

Condenser air - The UL ECU models employ a vertical discharge configuration. All models are equipped with a washable condenser inlet air filter to protect the condenser coil and simplify cleaning.

Material Protection

ECUs are coated with a Polyester thermosetting, powder-coated finish.
Color: Military Green or Desert Tan
Film Thickness: ASTM# D1186 2.0 - 2.5 Mils
Pencil Hardness: ASTM# D3363 H - 2H
Impact: ASTM# DE2794
Direct: 160/lbs
Reverse: 160/lbs
Salt Spray: ASTM#B117 Pass 1000 hours salt spray, less than 1/8" creepage, no blistering.

Marking and Labeling

Identification Plates

Air Rover uses permanent 4 x 6" aluminum plate with stamped data fields containing the following information: (The plate is attached by rivets in all four corners.)

PART / MODEL #: ULCR60CA

This product was added to our catalog on Wednesday 10 March, 2010.

Pricing on this unit varies, please contact us for up to date price information and any possible quantity discounts