York N2VSD20A06 User Manual

GENERAL
This instruction covers the installation of the following variable
speed blower sections.
The blower section is the basic component of an indoor modular
system which may be combined with various accessories listed
below to make an evaporator blower, evaporator blower with
electric heat, heat pump blower, and heat pump blower with
electric heat.
Because of the many ways this Air Handler may be applied and
the large variety of available accessories, the indoor portion of the
cooling or heat pump system comes to you in modules. These
modules must be field assembled to meet the specific needs of
the owner.
If this variable speed air handler is installed with a two stage
(H*DS) outdoor condensing unit, a thermal expansion valve kit
must be installed on the indoor side.
Check modules (accessories, etc.) received, against plans to be
sure all required modules are available for assembly.
INSPECTION
As soon as a unit is received, it should be inspected for possible
damage during transit. If damage is evident, the extent of the
damage should be noted on the carrier’s freight bill. A separate
request for inspection by the carrier’s agent should be made in
writing. See Form 50.15-NM for more information.
REFERENCE
This instruction should be used in conjunction with installation
instructions supplied with each accessory as well as the matching
outdoor section.
Installer should pay particular attention to the words: NOTE,
CAUTION and WARNING.
NOTES are intended to clarify or make the installation easier.
CAUTIONS are given to prevent equipment damage.
WARNINGS are given to alert the installer that personal injury
and/or equipment damage may result if installation procedures
are not handled properly.
®
TYPE OF APPLICATIONS
UPFLOW DOWNFLOW
HORIZONTAL
ELECTRIC FURNACE
WITH 018 - 024 COIL
WITH 030 - 061 COIL
*
*Righthand return may be used by remov ing Horizontal Drain Pan
WITH 024 COIL
FIGURE 1 - Typical Component Application
N1VSD10A06
N1VSD14A06
N2VSD20A06
VARIABLE SPEED AIR HANDLERS
FOR USE WITH SPLIT SYSTEM COOLING AND HEAT PUMP
INSTALLATION INSTRUCTION
Supersedes: 535.03-N1Y (1293)
535.03-N1Y (594)
035-10809
N*VS BLOWER SECTIONS
CAUTION
THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY APPLICABLE
LOCAL, STATE, AND NATIONAL CODES INCLUDING, BUT NOT LIMITED
TO, BUILDING, ELECTRICAL, AND MECHANICAL CODES.
THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE WITH
WARNING
OPERATION OF THE PRODUCT COULD CAUSE PERSONAL INJURY
OR PROPERTY DAMAGE.
INCORRECT INSTALLATION MAY CREATE A CONDITION WHERE THE

York N2VSD20A06 Specifications

General

Model Number	N2VSD20A06
Category	Air Handlers
Airflow Capacity	2000 CFM
Voltage	208-230V
Phase	1
Refrigerant	R-410A
Airflow	2000 CFM
Heating Capacity	24000 BTU

Summary

Installation Instructions Overview

General Information and System Components

Covers installation of variable speed blower sections and system components.

Safety and Cautionary Notes

Provides warnings for equipment damage and personal injury risks.

Application Type Illustrations

Illustrates typical component applications in different airflow configurations.

System Limitations and Clearances

System Limitations

Details voltage limits, airflow, and temperature constraints for the unit.

Required Clearances

Specifies minimum clearances for piping, maintenance, and filters.

Unit Location Considerations

Guidance on selecting a suitable location, considering support and noise.

Duct Connections and Unit Preparation

Ductwork Design and Installation

Guidelines for proper duct system design, flexible collars, and insulation.

Indoor Unit Preparation and Accessory Installation

Steps for preparing the unit, installing accessories, and associated cautions.

Electrical Connections and Wiring

Line Power Connection Methods

Guidance on bringing power into the unit and alternate multi-source wiring.

Low Voltage Control Wiring

Connector Board and Jumper Configuration

Explains the N*VS connector board, its terminals, and jumper settings for operation.

System Configuration and Settings

Blower Speed and CFM Configuration

Setting blower speed, cooling, heat pump, and electric heat CFM via jumpers.

Delay Profiles and Heat Anticipator Settings

Configuring blower delay profiles and heat anticipator for optimal performance.

Maintenance and Accessory Installation

Filter and Coil Maintenance

Procedures for cleaning air filters and cleaning the unit's coil.

Humidistat Accessory Installation

Instructions for installing a humidistat accessory and associated jumper removal.