Maxi-Kool - Compu-Aire Inc.

1 Ceiling Mount systems Self Contained & Split 2 12 Tons Precision cooling & humidity control for small to medium areas. Maxi-Kool MK A-2 12 (E). Maxi-Kool E - Evap. Section C - Condenser Section Type EM - Energy Miser Air Cooled - A C+ - Chilled Water Combination Chilled Water Cooled - C. Glycol Cooled - G Voltage Water Cooled - W 2 - 208. Split Evap Section - (E) 3 - 380. 4 - 460. 7 - 277. Nominal Tonnage 2 Ton galvanized steel. The access panels are removable for ease of servicing. The evaporator section is insulated with 1 lb density insulation. The base of the cabinet forms an emergency condensate pan. The Condenser Section Air Out Access Panel Air In evaporator Section Air Supply Compressor Return Air Mounting Channel Filter Access Maxi-Kool Self Contained System (showned).

2 C the special environmental control (temperature, humidity, air filtration) needs for both main frame and main computer rooms, and is able to offer the Compu-Aire Maxi-Kool listed, the Compu-Aire Inc. Maxi-Kool is installed in the ceiling or roof and is available in over 5 capacities and cooling methods. The Compu-AireInc. Maxi-Kool offers a space saving compact design with many flexible configuration options. This allows the system to be tailored to the needs of the user's application. Users prefer the Compu-Aire Maxi-Kool for its ability to draw through design for the maximum heattransfer efficiency. The 's unique ceilingand roof mounted feature not only keeps pace with rapidly changing computer technology, but also offers the highest de- gree of reliability in component and system operation.

3 Standard Features The Compu-Aire Maxi-Kool is a self-containe- Refrigerant CircuitsThermal expansion valve- dunit with a ceiling/rood mounted closed loop Filter drierSight glassHigh and low pressure system. It is available in an air, water, glycol, or switchSchrader fittings chilled water configuration. Electric Reheat A high efficiency coil provides maximum air The electric heating coil is a low watt density drawthrough to meet space capacityA thermal- stainless steel fin tubular construction ly insulated galvanized steel pan is provided for the evaporator coil to prevent any water from reaching the floorFully insulated cabinetSide Steam Humidifier Disposable Cylinder HumidifierPrewired, pre- access is made easy for servicing via a well piped, and maintenance free, this is a steam insulated access panelSingle point electrical generating humidifier.

4 The humidifier is equipped connection with disposable cylinder. System 2000 Microprocessor Water Regulating Valve Controls-Dual display, digitally operated, re- (Water/Glycol Cooled Units Only) 2way, mote controller for precise temperature and 150 psig head pressure actuated valve humidity control-16 character LCD display with six push button switches-Displays current room temperature, unit status, andalarm messages-5 WCCU. year battery backup for volatile memory Water Cooled Condenser(Water Cooled Units Only)Heavy duty, counter flow coaxial condensersChilled Water Valve (Chilled Water Belt Drive Fan Units Only) 2way, 2 positionschilled water valve Belt drive fan assembly-belt driven motors for field adjustment to match external static pres- sure requirement-The blowers are DWDI, cen- trifugal with forward curved blades and both are dynamically and statically balanced Scroll Compressor High efficiency scroll compressor with built in thermal overload protection, pressure relief valve, and current overload protection OPTIONAL FEATURES.

5 Split System Hot Gas Bypass This option facilitates split system installations. The hot gas bypass valve is factory installed in The air cooled condensing section, including the the compressor discharge for precise capacity compressor, can be separate from the evapo- control in the cooling mode and for protection rator air handling section and factory supplied against coil freeze up during partial or low with stub connections. It is factory pressure load conditions. For air cooled split systems, tested, sealed, and shipped with a holding a hot gas bypass line needs to be field installed charge. between the evaporator and condenser section.

6 Weatherizing For Outdoor Special Water Valve InstallationThis can be applied to complete For MKW/MKGS ystemsThe following alternate standard package unit, or to the condenser water valves are available:3 way head pressure section only. Hood and bird screen is installed on regulating valve rated at 150 psig2 way head the condenser supply and discharge. pressure regulating valve rated at 300 psig3. way head pressure regulating valve rated at Condensate Pump 300 psig Plenum rated condensate pump is provided for field installation. A separate power is required. Alternate Reheat Low Ambient Control (Air Cooled Units Only) Steam reheat the coil is factory piped with a 2 way on/off control valve-Hot water reheat Low Ambient Control the coil is factory piped with a 2 way on/off To -30 FFlooded type low ambient control with control valve-Hot gas reheat the coil is head pressure valve, insulated, and heated liquid factory piped with a 3 way solenoid valve receiver.

7 And refrigerant check valve Low Ambient Control To 0 F Alternate Humidifier (Air Cooled Units Only) The steam humidifier provides a dry steam, Pneumatic Type-Damper good down to 0 F. double jacketed type, piped with a solenoid Damper on condensing side of the valve. The steam trap and Y-strainer are Miser UnitThe Compu-Aire factory provided andare to be field installed outside of the unit. Energy Miser system is integrated with glycol cooled Compu-Aire Maxi-Kool . At an entering glycol temperature of Disconnect Switch 45 F and below, the Compu-Aire Energy Mi- Fused Disconnect Switch ser system can provide total system capacity, A fused disconnect switch can be supplied with thereby resulting in a substantial reduction in the indoor unit for field installation.

8 The fuses operating costs. are to be field supplied and installed. Single Phase Rain Tight Disconnect The system can be provided for a single phase A rain tight, fused disconnect switch can be sup- power supply, 208 or 230 voltage where avail- plied with the outdoor unit for field installation. able, and for units up to and including 5 tons. The fuses are to be field supplied and installed. HACR Circuit Breaker A HACR approved circuit breaker can be sup- plied (factory installed) with the unit. Remote Air Cooled Condenser Advanced Technology The remote air cooled condenser is a low profile Controls System 2200. design constructed of copper tube and high effi- The remote wall mounted, microprocessor ciency aluminum fin coil.

9 A factory wired control based, solid state controls has 4 rows, 40 char- panel is provided for field installation in weather acters, is back lit, and supertwist liquid crystal proof housing on the condenser. display (LCD). The information is displayed and presented in a format that is easily viewed and Dry Fluid Cooler And Pump Package understood. A DFC matching the water cooled condenser capacity, at design elevation, glycol solution Standard Features percentage and ambient temperature, can be Standalone panel provided for remote installation and field piped Smooth keyboard type switches with tactile for the water/glycol solution, and interconnect- feedback ed to the indoor air conditioner.

10 2 analog inputs Non volatile memory A close coupled centrifugal pump and motor Data of unit and room conditions for circulating glycol solution can be provided System trending for field mounting, with a pump motor weather Forward and backward menu access shield. Programmable automatic restart Protective And Safety Features Extended Warranty Multi-level password access Up to Four Year Compressor Warranty Watch dog timer There is an initial 1 year warranty and an Alarm displayed in order of occurrence additional 4 year warranty can be purchased. Start time delay Compressor short cycle control remote dial up and communications RS-422/485 network capabilities Special Industrial Applications Auto changeover and/or auto rotation for The Compu-Aire Maxi-Kool can be provided operational redundancy or allow switching with a variety of special application options of units to maximize component life such as 7 day time clock Stainless steel cabinet for P-lan network capability corrosion resistance Effective zone control Double wall construction for Full graphic display noise reduction EMS/BMS capabilities Epoxy/phenolic coated/copper coils Foreign language capability for corrosion