York MC48C3XH1 Air Conditioner User Manual

York MC48C3XH1 Air Conditioner

DESCRIPTION

This unique modular system allows for the flexibility to handle any application. These versatile coils and blowers may be used for upflow, downflow, or horizontal left or right applications. They may be combined to function as a cooling-only unit or with a heat pump, including electric heat for 1 and 3-phase applications. The blower and electric heater could be used as stand-alone electric furnaces.

FEATURES BLOWERS

Models to match any air flow or voltage requirement. The compact size allows easy installation. Blowers are
sized to deliver design air quantity both efficiently and quietly. The motors provide a selection of air quantities to match any application. All models include a one-minute blower-off delay as standard to enhance system efficiency ratings. The durable, pre-painted steel protects the unit against rust and corrosion. All models have 1-inch foil-faced fiberglass insulation, providing a thermal insulation value of R-4.2.

COILS 

Staggered rows of rifled copper tubes are mechanically expanded into enhanced surface aluminum fins to provide high heat transfer and long-lasting quality. The MC multi-position coils may be used for upflow, downflow, and horizontal left or right applications. Coil cabinets are insulated with 3/4″ foil face insulation to prevent sweating.

ELECTRIC HEATERS

Both single and three-phase electric heater models are available to match any requirement. All heaters include nickel-chromium elements with a 5-year limited warranty on 1 Ø heating elements and 1 1-year limited warranty on 3Ø heating elements. Sequential operation is provided to control heaters in all models. Circuit breakers are used in 208/230-volt, single-phase heaters of 15 KW and larger. Models equipped with circuit breakers may be altered in the field to use a multi-source power supply. Over-temperature limit switches provide protection from airflow loss with fusible link backup protection.

ACCESSORIES 

A full line of matching accessories is available for use with the blower and coils to allow any type of application.

LIMITATIONS

These units must be wired and installed in accordance with all national and local safety codes. Voltage limits are as follows:

DIMENSIONS – (BLOWER WITH MC COILS)

NOTE: Power wiring may be brought into the unit through one of the knockouts in either the top or the left side panel. Multiple knockouts are provided to accommodate all of the electric heat and transformer accessories that are available. Use the knockouts that provide the best wire routing for the accessory being used.

DIMENSIONS

1. Parentheses indicate conduit size.

COOLING CAPACITY – COIL ONLY

PHYSICAL & ELECTRICAL

ELECTRICAL DATA (FOR SINGLE SOURCE POWER SUPPLY) – COPPER WIRE 208/230-1-60

1. 30 KW 3-phase not approved for single source power supply.
2.  OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.  May be 0 (no breaker) or 1 (with breaker).

ELECTRICAL DATA – 208/230-3-60

ACCESSORIES

Refer to the Price Manual for specific model numbers. Electric Heaters – Models shown under Electrical Data include sequencers and temperature limit switches, and fusible links for safe, efficient operation. Circuit breakers are provided where shown. Suspension Kit – Suspension Kit Model 1BH0601 is designed specifically for upflow application of the units contained in this technical guide. For the suspension of these units in horizontal applications, it is recommended to use angle support brackets with threaded rods at locations shown in the air handler installation instructions.

Filter Rack 

One of the following external filter rack accessories: 1FR07* or 1FR08* must be used when the unit is installed
for the application outlined. Combustible Floor Base – If an electric heat accessory that is rated for greater than zero clearance to combustible surfaces is installed in these air handlers in the downflow operating positions on a combustible floor, one of the following combustible floor base accessories is required: 1FB1817, 1FB1821, or 1FB1824.

NOTE: May be used with up to a 2” filter. Required for downflow application. It may also be used in an upflow application. All dimensions are inches. They are subject to change without notice. Certified dimensions will be provided upon request.

FILTER RACK ACCESSORY

All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.

COMBUSTIBLE FLOOR BASE ACCESSORY

APPLICATION FACTORS – RATED CFM VS. ACTUAL CFM

Typical Applications with MC Multi-Position Coils

COOLING MODELS WITH ELECTRIC HEAT

Due to continuous product improvement, specifications are subject to change without notice. Visit us on the web at www.york.com. Additional rating information can be found at www.ari.org/aridirectory.

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York MC48C3XH1 Air Conditioner-FAQs.