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INSTALLATION MANUAL
VARIABLE SPEED
MODULAR AIR HANDLER
MODELS: N*VS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SPECIFIC SAFETY RULES AND PRECAUTIONS . . . . . . . . . . . . . . . 2
SAFETY REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SUSPENSION KITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INDOOR UNIT PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
HORIZONTAL INSTALLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Plenum Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Typical Upflow Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Dimensions & Duct Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Tie Plate & Fastening Tabs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electric Heaters in Horizontal Configuration . . . . . . . . . . . . . . . . . . . . 5
CFM Selection Board Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CFM / Comfort Tap Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Data - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Copper Wire 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SAFETY

This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.

TABLE OF CONTENTS

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
ELECTRIC HEATERS & OPERATING CONTROLS . . . . . . . . . . . . . .5
LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . . .5
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
BLOWER SPEED COMFORT SELECTION . . . . . . . . . . . . . . . . . . . .6
WIRING DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
CONDENSATE DRAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
LIST OF FIGURES
Control Wiring-N1VS Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Control Wiring-N1VS Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Control Wiring-N1VS & New UPG A/C Systems . . . . . . . . . . . . . . . .12
Control Wiring-N1VS & New UPG HP Systems . . . . . . . . . . . . . . . . .12
Control Wiring-N1VS & New UPG HP Systems . . . . . . . . . . . . . . . . .13
Control Wiring-N1VS & New UPG HP Systems . . . . . . . . . . . . . . . . .13
LIST OF TABLES
Copper Wire 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Copper Wire 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Copper Wire 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Electrical Data - Cooling Only (60 Hz) . . . . . . . . . . . . . . . . . . . . . . . .10
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
ISO 9001
Certified Quality
Management System
103904-UIM-B-0505

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Summary of Contents for York International N Series

  • Page 1: Table Of Contents

    INSTALLATION MANUAL VARIABLE SPEED MODULAR AIR HANDLER MODELS: N*VS ISO 9001 Certified Quality Management System TABLE OF CONTENTS SAFETY ..........1 BLOWER / COIL ASSEMBLY DOWNFLOW SPECIFIC SAFETY RULES AND PRECAUTIONS .
  • Page 2: Specific Safety Rules And Precautions

    103904-UIM-B-0505 SPECIFIC SAFETY RULES AND PRECAUTIONS GENERAL INFORMATION This Modular Air Handler provides the flexibility for installation in any upflow, downflow or horizontal application. These versatile models may be used with or without electric heat. The variable-speed (ECM) motors FIRE OR ELECTRICAL HAZARD provide a selection of air volume to match any application.
  • Page 3: Typical Applications With G2Fd Multi-Position Coils

    103904-UIM-B-0505 Precautions should be taken to locate the unit and ductwork so Refrigerant piping and connections are located in the front. that supply air does not short circuit to the return air. Maintenance and servicing through the front or access side of unit with both sides and rear of unit having zero inch clear- Select a location that will permit installation of condensate line to ance.
  • Page 4: Duct Connections

    103904-UIM-B-0505 AIR HANDLER TOP (All Models) 4-1/8 10-3/8 7-1/2 19-3/4 1-1/2 AIR HANDLER BOTTOM OPENING FIGURE 4: Dimensions & Duct Sizes TABLE 1: Dimensions Dimensions - Inches Wiring K.O.s* N1VS MODEL Height Width Depth Power Control 7/8 (1/2) 17-1/2 16-1/2 16-1/2 1-3/8 (1) 7/8 (1/2)
  • Page 5: Indoor Unit Preparation

    103904-UIM-B-0505 INDOOR UNIT PREPARATION Prepare Air Handler for installation as follows: Attach coil casing to blower section in a way appropriate to indoor Blowers installed in a downflow application with an electric heater unit application. See appropriate “BLOWER / COIL ASSEMBLY” kit must include a non-combustible floor base if installing on a com- instructions for G2FD Coils.
  • Page 6: Cfm Selection Board Detail

    103904-UIM-B-0505 NOTE: All wiring must comply with local and national electrical code All CFM’s are shown at 0.5” w.c. external static pressure. These units requirements. Read and heed all unit caution labels. have variable speed motors that automatically adjust to provide con- stant CFM from 0.0”...
  • Page 7: Control Box

    103904-UIM-B-0505 FAN RELAY FAN CONNECTIONS TRANSFORMER CONNECTIONS (HIGH VOLTAGE) SELECTION 4-PIN POWER BOARD CONNECTOR 6-PIN CONNECTOR (LIMIT, 2ND, 3RD & 4TH HEAT RELAY 1 STAGE DRIVER) HEAT RELAY & TRANSFORMER & HEAT TEST BREAK TAB FOR VARIABLE SPEED MOTOR 24 VOLT R HEAT 4 THERMOSTAT HEAT 2...
  • Page 8: Electrical Data - 208/230-1-60

    103904-UIM-B-0505 TABLE 5: Electrical Data - 208/230-1-60 KW Staging** Min. CFM & Total Heat N1VS Heater Max. Static W1 Only W2 Only W1 + W2 Model Model* Static 2HK*6500506B 13.0 17.1 2HK*6500806B 19.1 25.6 2HK*6501006B 10.0 25.6 34.1 10.0 10.0 B1206 2HK16501506B 11.3...
  • Page 9: Electrical Data (For Single Source Power Supply) - Copper Wire 208/230-1-60

    103904-UIM-B-0505 TABLE 7: Electrical Data (for Single Source Power Supply) - Copper Wire 208/230-1-60 Field Wiring Heater Heater Amps N1VS Model Min. Circuit Ampacity Max. O.C.P. Amps/Type Model* 240V 208V 240V 208V 240V 208V 240V 2HK*6500506B 20.8 29.1 31.4 2HK*6500806B 31.3 39.9 44.4...
  • Page 10: Electrical Data (For Multi-Source Power Supply) - Copper Wire 208/230-1-60

    103904-UIM-B-0505 TABLE 9: Electrical Data (for Multi-source Power Supply) - Copper Wire 208/230-1-60 Min. Circuit Ampacity 75°C Wire Size - AWG Max. O.C.P. Amps/Type Circuit Circuit Circuit N1VS Heater Model Model 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 2HK16501506B 29.1/31.4 45.1/52.1...
  • Page 11: Wiring Diagrams

    103904-UIM-B-0505 WIRING DIAGRAMS N1VS AIR HANDLER CONTROL WIRING N1VS AIR HANDLER CONTROL WIRING Typical A/C - Cooling Only Applications Typical A/C with Electric Heat Applications AIR HANDLER 1-STAGE AIR HANDLER 1-STAGE THERMOSTAT BOARD AIR CONDITIONING THERMOSTAT BOARD AIR CONDITIONING CFM BOARD CFM BOARD (X/L) (X/L)
  • Page 12: Control Wiring-N1Vs & Twin Single Upg A/C Systems

    103904-UIM-B-0505 CONTROL WIRING - N1VS & TWIN SINGLE UPG A/C SYSTEMS CONTROL WIRING - N1VS & TWIN SINGLE UPG HP SYSTEMS Two Stage A/C w/Comfort Enhancer Board & Bristol T.S. Compressor Two Stage H/P - York Guard V Board & Bristol T.S. 2-STAGE T.S.
  • Page 13: Control Wiring-N1Vs & New Upg Hp Systems

    103904-UIM-B-0505 CONTROL WIRING - N1VS & NEW UPG HP SYSTEMS CONTROL WIRING - N1VS & NEW UPG HP SYSTEMS ’ Two Stage H/P with York Guard VI Board & Copeland “Ultra Tech” Single Stage H/P with York Guard VI Board & Copeland “Ultra Tech” Conventional Application - Not Hot Heat Pump AIR HANDLER 2-STAGE SCROLL...
  • Page 14: Drain Connections

    103904-UIM-B-0505 DRAIN CONNECTIONS The drain pan connections are designed to ASTM Standard D 2466 Schedule 40. Use 3/4" PVC or steel threaded pipe. Since the drains are All drain lines should be trapped a minimum of three inches, should be not subject to any pressure it is not necessary to use Schedule 40 pipe pitched away from unit drain pan and should be no smaller than the coil for drain lines.
  • Page 15 103904-UIM-B-0505 NOTES Unitary Products Group...
  • Page 16 NOTES Subject to change without notice. Printed in U.S.A. 103904-UIM-B-0505 Copyright © by York International Corp. 2005. All rights reserved. Supersedes: 103904-UIM-A-1204 Unitary 5005 Norman Product York Group Drive 73069...

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