Technical Guide

ManualsBrandsYork ManualsAir Handler/CoilYork ME Air Handler

TECHNICAL GUIDE

MODELS: MX

MODULAR STANDARD ECM AIR HANDLERS

FOR USE WITH SPLIT SYSTEM

COOLING & HEAT PUMP

1200 - 2000 CFM BLOWERS

3 - 5 TON COILS

OPTIONAL 1 & 3

 ELECTRIC HEATERS

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.ahridirectory.org

ISO 9001

Certified Quality

Management System

635425-YTG-D-0413

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

DESCRIPTION

This unique modular system allows 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 applica-

tions. 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. All models

use a high efficiency brushless DC motor to provide cooling

SEER rating enhancement. The durable, pre-painted steel pro-

tects the unit against rust and corrosion. All models have 1 inch

foil face fiber glass 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.

Thermal Expansion Valves - Coils are ordered as "Flex-coil"

units without a factory installed metering device or with R-410A

factory installed TXV’s. Flex-coil models allow for field installed

R-22 or R-410A TXV’s for added flexibility to meet refrigerant

system choice.

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 war-

ranty on single phase heating elements and 1 year limited war-

ranty on 3 phase 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 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 available for

use with the blower and coils to allow any type application.

LIMITATIONS

These units must be wired and installed in accordance with all

national and local safety codes.

Voltage limits are as follows:

AIR HANDLER VOLTAGE

NORMAL OPERATING

VOLTAGE RANGE*

208/230-1-60 187 - 253

* Rated in accordance with ARI Standard 110, utilization range “A”.

Air flow must be within the minimum and maximum limits approved for electric

heat, evaporator coils and outdoor units.

Summary of content (12 pages)

PAGE 1
635425-YTG-D-0413 DESCRIPTION This unique modular system allows 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.
PAGE 2
635425-YTG-D-0413 DIMENSIONS J E 10-3/8” K A TOP OUTLET DIMENSIONS CIRCUIT BREAKER PANEL 21-1/2” B D 20-1/2” BOTTOM INLET DIMENSIONS FIGURE 1: Dimensions & Duct Connection Dimensions TABLE 1: Dimensions Wiring Knockouts1 Dimensions Models 12B 12D 16C 20D A B Height Width 25 17-1/2 24-1/2 21 24-1/2 D 16-1/2 23-1/2 20 23-1/2 E 14-19/32 21-19/32 18-3/32 21-19/32 J K Power Control 7/8” (1/2”) 1 3/8” (1”) 1 23/32” (1 1/4”) 7/8” (1/2”) 1. Actual size (Conduit size).
PAGE 3
635425-YTG-D-0413 COOLING CAPACITY - Coil Only Blower Model Coil Model Rated CFM Entering Air F (Dry/Wet Bulb) MBH @ Evaporator Temperature and Corresponding Pressure °F/PSIG 35/61.5 40/68.5 45/76.0 50/84.0 Multi-Position - Upflow/Downflow/Horizontal MC30B**C MX12B MC36B**C MC43B**C MC48D**C MX12D MC60D**C MC62D**C MC43C**C 1,025 1,250 1,220 1,125 1,275 1,450 1,365 MX16C MC48C**C MC48D**C MX20D MC60D**C MC62D**C 1,650 1,525 1,780 1,795 72 41.5 37.8 33.7 29.5 67 36.
PAGE 4
635425-YTG-D-0413 Physical and Electrical Data - Cooling Only (60 Hz) Models MX12BN21 MX12DN21 MX16CN21 MX20DN21 10 x 9 10 x 10 10 x 10 10 x 10 1/3 1/3 1/2 3/4 Nominal RPM 1050 1050 1050 1050 Full Load (230) 2.8 2.8 4.1 6.
PAGE 5
635425-YTG-D-0413 Electrical Data - 1 Ø - 208/230-1-60 Models MX20D Total Heat1 kW Staging Heater Models* Max. Static Min. Speed Tap 208v 230v 208v 230v 208v 230v 208v 230v 208v 4HK*6500806 0.5 Lo/#5 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5 4HK*6501006 0.5 Lo/#5 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6 4HK16501306 0.5 Lo/#5 9.8 13 33.3 44.4 3.3 4.3 6.5 8.6 9.8 13 4HK16501506 0.5 Lo/#5 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.
PAGE 6
35425-YTG-D-0413 Electrical Data - (For Multi-Source Power Supply) - Copper Wire 1 Ø - 208/230-1-60 Max. O.C.P. Amps/Type1 Min. Circuit Ampacity Models MX12B MX12D MX16C MX20D Circuit Heater Models 1st 4HK16501306 4HK165N1506 75°C Wire Size - AWG Circuit 1st 2nd Circuit 2nd 3rd 3rd 1st 2nd 3rd 208/230 208/230 208/230 42.6/48.6 17.1/20.6 -/- 45/60 20/25 -/- 8/8 10/10 – 46.7/53.5 19.2/23.1 -/- 50/60 25/25 -/- 8/6 10/10 – 4HK16501306 40.8/47.1 21.6/24.
PAGE 7
635425-YTG-D-0413 Electrical Data - (For Multi-Source Power Supply) - Copper Wire - 208/230-3-60 Max. O.C.P.1 Amps/Type Minimum Circuit Ampacity Models MX20D Heater Model 75°C Wire Size - AWG Circuit 4HK16502525 1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 45.1/50.8 22.8/27.6 –/– 45/50 20/20 –/– 8/6 10/10 –/– 1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
PAGE 8
635425-YTG-D-0413 POWER WIRING ELECTRIC HEAT WITHOUT CIRCUIT BREAKER 3 PHASE (10 - 15 KW) TYPICAL WIRING WITHOUT ELECTRIC HEAT GND. LUG GND. LUG 1 PHASE ELECTRIC HEAT WITH CIRCUIT BREAKER AS SHIPPED FROM FACTORY SINGLE SOURCE (2.5 - 25 KW) - 25 KW SHOWN GND. LUG GND. LUG POWER SUPPLY GND. LUG POWER SUPPLY 1 PHASE ELECTRIC HEAT WITH CIRCUIT BREAKER & BREAKER BAR REMOVED MULTI-SOURCE (15 - 25 KW) - 25 KW SHOWN GND. LUG TERMINAL BLOCK ELECTRIC HEAT WITHOUT CIRCUIT BREAKER SINGLE SOURCE (2.
PAGE 9
635425-YTG-D-0413 AIR HANDLER DEPTH FRONT DOWNFLOW AIR HANDLER FLOOR WARM AIR PLENUM WITH 1” FLANGES A 1 FIBERGLASS INSULATION A AIR HANDLER WIDTH FIBERGLASS TAPE UNDER FLANGE A B APPROX. 1/2” CLEARANCE ALL AROUND 10-47/64 PLENUM 12-1/2 FLOOR OPENING B COMBUSTIBLE FLOOR BASE FLOOR COMBUSTIBLE FLOOR BASE ACCESSORY B PLENUM All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request. 1 APPROX.
PAGE 10
635425-YTG-D-0413 CONVENTIONAL CONTROL WIRING (24 VAC) Air Handler Control Wiring Typical A/C - Cooling only Applications THERMOSTAT AIR HANDLER BOARD R R G G Y Y / Y2 W1 Y1 W2 W2 C W1 Air Handler Control Wiring Typical A/C with Electric Heat Applications THERMOSTAT 1 - STAGE AIR CONDITIONING Y AIR HANDLER BOARD R R G G Y Y / Y2 1 - STAGE AIR CONDITIONING Y Y1 HUMIDISTAT O W2 W2 W1 W1 C O HUMIDISTAT HUM HUM X/L X/L COM COM C C FIGURE 2: COOLING MODELS WITH ELECTI
PAGE 11
635425-YTG-D-0413 Air Flow Data - 60 Hz Models 208 Volt Models m³/min @ External Static Pressure - Pascal Blower CFM1 @ External Static Pressure - IWC Motor Speed 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 0.025 0.050 0.075 0.100 0.125 0.150 0.175 0.200 0.225 0.250 Hi/#1 1234 1212 1178 1145 1079 1043 995 911 623 371 34.54 33.94 33.00 32.05 30.20 29.20 27.87 25.50 17.44 10.40 MedHi/#2 MX12B Med/#3 MedLo/#4 MX12D MX16C MX20D 1099 1066 1037 987 933 888 801 NA NA NA 30.76 29.86 29.03 27.65 26.