York MV - User Manual

TECHNICAL GUIDE
MODELS: MV
MODULAR VARIABLE SPEED AIR HANDLERS
FOR USE WITH SPLIT SYSTEM
COOLING & HEAT PUMP
1200 - 2000 CFM BLOWERS
3 - 5 TON COILS
OPTIONAL 1 & 3
φ ELECTRIC HEATERS
Due to continuous product improvement, specifications
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
ISO 9001
Certified Quality
Management System
255427-YTG-F-1006
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 applications. The
blower and electric heater could be used as stand alone electric
furnaces.
FEATURES
BLOWERS - Models to match any air flow or voltage require-
ment. 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 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.
ELECTRIC HEATERS - Both single and three phase electric
heater models are available to match any requirement. All heat-
ers include nickel-chromium elements with a 5-year limited war-
ranty on 1 Ø heating elements and 1 year limited warranty on 3
Ø 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

TECHNICAL GUIDE

MODEL OVERVIEW (MV Series)

Modular variable speed air handlers for split system cooling and heat pump applications.

PRODUCT DESCRIPTION AND FEATURES

System flexibility, blower, coil, and electric heater details for versatile application.

ACCESSORIES AND LIMITATIONS

Available accessories and operational limitations including wiring and voltage requirements.

DIMENSIONS AND SPECIFICATIONS

BLOWER AND COIL DIMENSIONS

Table detailing physical dimensions (A, B, C, D, E) and wiring knockouts (J, K).

COOLING CAPACITY DATA

MBH AT EVAPORATOR CONDITIONS

Cooling capacity data for various coil models at different temperature/pressure points.

PHYSICAL AND ELECTRICAL DATA

BLOWER SPECIFICATIONS

Physical specifications for blower units including dimensions and motor details.

COIL SPECIFICATIONS

Details on coil models, application, face area, rows, tube geometry, and operating weight.

ELECTRICAL DATA - SINGLE-PHASE

208;230-1-60 Total Heat and Staging

Electrical data for single-phase units including total heat output and staging.

ELECTRICAL DATA - THREE-PHASE

208;230-3-60 Total Heat and Staging

Electrical data for three-phase units including total heat output and staging.

SINGLE SOURCE POWER SUPPLY - 1-PHASE

208;230-1-60 Field Wiring

Wiring details for single-phase supply, including heater amps, min. circuit ampacity, and wire size.

SINGLE SOURCE POWER SUPPLY - 3-PHASE

208;230-3-60 Field Wiring

Wiring details for three-phase supply, including heater amps, min. circuit ampacity, and wire size.

ELECTRICAL DATA

Multi-Source Supply (1-Phase)

Data for multi-source supply, detailing ampacity and wire size for different heaters.

Cooling Unit Only Data

Electrical data for cooling-only units, including motor amps and minimum circuit ampacity.

Power Wiring Configurations

Diagrams showing typical wiring for units without electric heat and with electric heat.

ACCESSORIES

Filter Rack Accessory

Description of filter rack accessories and their dimensions for various models.

Combustible Floor Base

Requirement for floor base accessories when installing units with electric heat in downflow.

COMBUSTIBLE FLOOR BASE ACCESSORY

Dimensions

Table showing dimensions for combustible floor base accessories based on unit models.

AIRFLOW DATA

Cooling Airflow (12 B, 12 D, 16 C, 20 D)

Cooling airflow data for various air handler models, including CFM and jumper settings.

Heating Airflow (12 B, 12 D, 16 C, 20 D)

Heating airflow data for various air handler models, including CFM and jumper settings.

APPLICATION AND CONTROL WIRING

Application Factors

Factors for adjusting rated CFM based on actual airflow percentages.

Typical Wiring Diagrams

Control wiring diagrams for AC cooling-only, electric heat, and HP systems.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The document describes the YORK Modular Variable Speed Air Handlers (Models MV), designed for use with split system cooling and heat pump applications. These units are versatile, supporting 1200-2000 CFM blowers, 3-5 ton coils, and optional 1 and 3 phase electric heaters. Their modular design allows for flexible installation in upflow, downflow, or horizontal left or right configurations, and they can function as cooling-only units or with heat pumps. The blower and electric heater components can also be used as standalone electric furnaces.

Function Description

The YORK MV series air handlers are designed to efficiently circulate conditioned air throughout a building. They integrate a blower, evaporator coil, and optional electric heater to provide comprehensive heating and cooling. The variable speed blower ensures precise airflow delivery, contributing to enhanced system efficiency and quiet operation. The evaporator coils facilitate heat exchange for cooling, while the electric heaters provide supplemental or primary heat. The modular nature of the system allows for customization to meet diverse application requirements, from residential to light commercial settings.

Important Technical Specifications

• Blower Specifications:

  • Models: MV12B, MV12D, MV16C, MV20D.
  • Diameter x Width: MV12B (10 x 7), MV12D (10 x 10), MV16C (10 x 10), MV20D (10 x 10).
  • Motor HP: MV12B (1/2), MV12D (1/2), MV16C (3/4), MV20D (1).
  • Nominal RPM: 1200 for all models.
  • Voltage: 208/230V.
  • Full Load Amps (230V): MV12B (4.3), MV12D (4.3), MV16C (5.0), MV20D (7.0).
  • Filter Size: MV12B (16 x 20 x 1), MV12D (22 x 20 x 1), MV16C (20 x 20 x 1), MV20D (22 x 20 x 1). Filters can be disposable or permanent.
  • Shipping/Operating Weight (lbs.): MV12B (68/62), MV12D (88/82), MV16C (75/69), MV20D (93/87).

• Coil Specifications:

  • Models: MC18A3XH1, MC18A2AH1, MC18B3XH1, MC18B2AH1, MC24A3XH1, MC24A2AH1, MC24B3XH1, MC24B2AH1, MC30A3XH1, MC30A2AH1, MC30B3XH1, MC30B2AH1, MC35B3XH1, MC35C3XH1, MC36A3XH1, MC36A2AH1, MC36B3XH1, MC36B2AH1, MC36C3XH1, MC36C2AH1, MC42B3XH1, MC42B2CH1, MC42C3XH1, MC42C2CH1, MC48C3XH1, MC48C2CH1, MC48D3XH1, MC48D2CH1, MC60D3XH1, MC60D2CH1, MC61D3XH1, MC61D2CH1.
  • Face Area (Sq. Ft.): Ranges from 3.40 to 6.80.
  • Rows Deep: 2 or 3.
  • Fin Per In.: 12 or 14.
  • Coil Size: Varies, e.g., (2) 14 x 17.5, (2) 18 x 17.5, (2) 20 x 17.5, (2) 16 x 17.5, (2) 24 x 17.5, (2) 22 x 17.5, (2) 28 x 17.5.
  • Tube Geometry: 1 x 0.866.
  • Tube Dia.: 3/8.
  • Fin Type: Enhanced.
  • Operating Weight (Lbs.): Ranges from 53 to 98.
  • Refrigerant Connections (Line Size): Liquid (3/8), Vapor (3/4, 7/8).

• Electric Heater Specifications (208/230-1-60 and 208/230-3-60):

  • KW Range: From 3.6 KW (208V) to 24.0 KW (240V) for single phase, and from 7.2 KW (208V) to 24.0 KW (240V) for three phase.
  • MBH Range: From 12.3 MBH (208V) to 81.9 MBH (240V) for single phase, and from 24.6 MBH (208V) to 81.4 MBH (240V) for three phase.
  • Max. Static: 0.5 for all heaters.
  • Min. Speed Tap: Heat-D for all heaters.
  • Heaters include nickel-chromium elements with a 5-year limited warranty on 1Ø heating elements and 1-year limited warranty on 3Ø heating elements.
  • Sequential operation is provided.
  • Circuit breakers are used in 208/230 volt, single-phase heaters of 15 KW and larger.
  • Over-temperature limit switches with fusible link backup protection.

• Electrical Data (Cooling Unit Only - 60 Hz):

  • Total Motor Amps (208V/230V): MV12B (4.7/4.3), MV12D (4.7/4.3), MV16C (6.1/5.0), MV20D (7.8/7.0).
  • Minimum Circuit Ampacity (208V/230V): MV12B (5.9/5.4), MV12D (5.9/5.4), MV16C (7.6/6.9), MV20D (9.7/8.8).
  • Max. O.C.P. Amps/Type: 15 for all models.
  • Minimum Wire Size AWG @ 75°C: 14 for all models.

• Voltage Limits:

  • Air Handler Voltage: 208/230-1-60.
  • Normal Operating Voltage Range: 187-253.
  • Rated in accordance with ARI Standard 110, utilization range "A".

Usage Features

• Modular Design: The unique modular system offers flexibility for various applications, allowing for upflow, downflow, or horizontal left/right installations.
• Quiet and Efficient Operation: Blowers are designed to deliver design air quantity both efficiently and quietly. The motors provide a selection of air quantities to match any application.
• Enhanced System Efficiency: All models include a one-minute blower off delay as standard to enhance system efficiency ratings.
• Multi-Position Coils: The MC multi-position coils can be used for upflow, downflow, and horizontal left or right applications.
• Electric Heat Options: Both single and three-phase electric heater models are available to match diverse requirements. Models equipped with circuit breakers can be altered in the field for multi-source power supply.
• Compatibility: Designed for use with split system cooling and heat pump applications.
• Airflow Data: Detailed CFM and m³/min data are provided for high/low speed cooling and heat pump operations across different air handler models and jumper settings. The units feature variable speed motors that automatically adjust to provide constant CFM from 0.0" to 0.6" w.c. external static pressure. CFM is reduced by 2% per 0.1" increase in static pressure from 0.6" to 1.0" w.c. Operation on duct systems with greater than 1.0" w.c. external static pressure is not recommended.

Maintenance Features

• Durable Construction: The durable, pre-painted steel protects the unit against rust and corrosion.
• Insulation: Blowers have 1-inch foil face fiberglass insulation (R-4.2 thermal insulation value). Coil cabinets are insulated with 3/4-inch foil face insulation to prevent sweating.
• Filter Access: The units are designed to accommodate filters, with specific sizes for each blower model. External filter rack accessories (1FR07* or 1FR08*) must be used when the unit is installed as outlined.
• Safety Features: Electric heaters include sequencers, temperature limit switches, and fusible links for safe, efficient operation. Circuit breakers are provided where shown. Over-temperature limit switches provide protection from airflow loss with fusible link backup protection.
• Combustible Floor Base: For downflow applications with electric heat accessories rated for greater than zero clearance to combustible surfaces, specific combustible floor base accessories (1FB1817, 1FB1821, or 1FB1824) are required.
• Wiring and Installation: Units must be wired and installed in accordance with all national and local safety codes. Power wiring can be brought into the unit through knockouts in the top or left side panel. Multiple knockouts are provided for electric heat and transformer accessories.
• Warranty: Electric heaters include a 5-year limited warranty on 1Ø heating elements and a 1-year limited warranty on 3Ø heating elements.
• Quality Management: The product is ISO 9001 Certified, indicating a commitment to quality management.

York MV Specifications

General

Brand	York
Model	MV
Category	Air Conditioner
Language	English