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Comfort-Aire Horizontal 2.0 Ton Geothermal Water Source Heat Pump|R454B| Standard Coaxial Heat Exchanger| Non-Coated Coil| Left RA-Straight Supply| PSC Blower| Standard Range Cabinet| CXM2 Controls| 208-230V 1 Ph| MCL024AGC30C0PS
Comfort-Aire Horizontal 2.0 Ton Geothermal Water Source Heat Pump|R454B| Standard Coaxial Heat Exchanger| Non-Coated Coil| Left RA-Straight Supply| PSC Blower| Standard Range Cabinet| CXM2 Controls| 208-230V 1 Ph| MCL024AGC30C0PS
The MARS 18 (MC) Compact Singe-Stage Series raises the bar for water-source heat pump efficiencies, features, and application flexibility. Not only does the MC exceed ASHRAE 90.1 efficiency standards, but it also uses R-454B low Global Warming Potential (GWP) refrigerant, making it an extremely environmentally friendly space conditioning product solution. The MARS MC is eligible for LEED® (Leadership in Energy and Environmental Design) points due to its innovative and environmentally conscious design. With one of the smallest cabinets in the industry, the MC easily fits into tight spaces. Designed to be backward compatible with thousands of older water-source heat pumps, the MARS MC heat pump is packed full of the innovation you have come to expect from the experts at MARS.
Available in sizes from 1/2 ton (1.8 kW) through 5 tons (17.6 kW) with multiple cabinet options (vertical upflow and horizontal) the MC offers a wide range of units for most any application. The MC has an extended range refrigerant circuit, capable of geothermal ground loop applications (with optional extended range insulation) as well as boiler-tower water loop applications. Standard features include: scroll compressors, microprocessor controls, galvanized steel cabinet, polymer drain pan and sound absorbing air handler insulation are just some of the features of the MC.
Recent EPA mandates require an industry transition to low-GWP refrigerants, such as R-454B which is a gas that is classified as having low-toxicity, low flammability rating. Due to these characteristics, R-454B systems charged with over 62 ounces of refrigerant must contain an integrated Refrigerant Detection System (RDS). In the unlikely event of a system-refrigerant leak, the RDS shuts down compressor operation and runs the unit blower motor to disperse any concentration of leaked refrigerant in compliance with UL 60335-2-40 safety standards. For MARS MC products, only the 5 ton size (060) is required to have the RDS and the feature is optional on all other sizes.
MARS’ double isolation compressor mounting system makes the MC one of the quietest units on the market. Compressors are mounted on specially engineered sound-tested EPDM grommets to a heavy gauge mounting plate, which is further isolated from the cabinet base with EPDM grommets to minimize vibration transmission and to maximize sound attenuation. The easy access control box and large access panels make installing and maintaining the unit easier than other water-source heat pumps currently on the market, proving that a small unit can be easy to service.
Options such as tin-plated air coil, DDC controls, and high efficiency pleated MERV-rated air filters allow customized design solutions. Two tiers of Electronically Commutated (EC) fan motor options allow for premium efficiency at a budget price with a Constant Torque (CT) EC or maximized airflow control with an intelligent Constant Volume (CV) EC. Cupronickel water-coils and MARS’ industry-leading sound attenuation package are options that make a great unit even better.
Intelligent communicating controls provide technicians an interface into the operation of the system in real time without the need for hard tooling. On-board advanced controls communicate the key operating system temperatures allowing technicians to startup, commission, and service equipment remotely by smart phone or website interface. Communication can also be established at the unit via a handheld service tool. Communicating controls also enable the functionality to make system adjustments and capture operating conditions at time of fault. The data is presented in a user-friendly format, enhancing the overall usability of the experience.
The MARS 18 (MC) Compact Single-Stage Series water-source heat pumps are designed to meet the challenges of today’s HVAC demands with one of the most innovative products available on the market.
FEATURES Sizes 006 (1/2 ton, 1.8 kW) through 060 (5 tons, 17.6 kW) Exceeds ASHRAE 90.1 efficiency standards Environmentally-friendly R-454B low-GWP refrigerant Refrigerant Detection System (RDS) (mandatory on size 060, optional feature for sizes 006-048) Coaxial heat exchanger Galvanized-steel cabinet construction Sound-absorbing glass-fiber insulation Unique double-isolation compressor mounting for quiet operation Insulated divider and separate compressor/ air handler compartments TXV metering device Microprocessor controls with on-board fuse and emergency shutdown Field-convertible discharge-air arrangement for horizontal units PSC three-speed fan motor (two-speed for 575V) Unit Performance Sentinel performance-monitoring system Eight standard safety features Non-corrosive polymer drain pan External Connecting Port on front-left corner post facilitates service tool connectivity, thereby reducing startup, commissioning, and service time CXM2 Communicating Controls: – Connect directly to the system with a handheld service tool – Provides real-time unit operating conditions – Reduces startup, commissioning, and service time by providing key system temperatures electronically – Captures operating conditions in the event of a safety shutdown OPTIONS - High-efficiency EC blower motors: – Intelligent Constant Volume (CV) EC motors for ultimate airflow control – Entry-level Constant Torque (CT) EC motors provide efficiency at a value DXM2.5 Advanced Communicating Controls: – Includes all of the CXM2 features – Dial in desired airflows for CV EC blower motors BACnet, Modbus, and Johnson Controls N2 compatibility options for Building Management Systems (BMS) Corrosion-resistant cupro-nickel water heat exchanger Sound-attenuation package Tin-plated air coils for added protection from formicary corrosion Easy-to-clean rust-prohibitive stainless-steel drain pans Extended-range insulation for geothermal applications Electrical-service disconnect ACCESSORIES Wide variety of thermostat options to meet your application needs Braided-hose kits in various lengths with optional water valve, PT plugs, blowdown valve, flow regulator, and strainer Externally-mounted manual and motorized water valves 1-inch Merv 8 filter 2-inch Merv 8 or 13 filters Aesthetically-pleasing wall sensors for connection to BMS (MPC) controls
