York MA - 115V Installation Manual
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York MA - 115V Installation Manual

York MA - 115V Installation Manual

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INSTALLATION MANUAL
MODULAR
AIR HANDLERS
MODELS: MA - 115V
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . . 5
REQUIRED CONTROL SET-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coil and Air Handler Attachment Details . . . . . . . . . . . . . . . . . . . . . . . 3
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Low Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Low Fan Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SECTION I: GENERAL
This modular air handler provides the flexibility for installation in any
upflow, downflow, or horizontal application. These versatile models may
be used for cooling or heat pump operation with or without electric heat.
A BRAND LABEL (available from Distribution) may be applied to the
center of the blower access panel.
The unit can be positioned for bottom return air in the upflow position,
top return air in the downflow position, and right or left return in the hor-
izontal position.
Top and side power wiring and control wiring, accessible screw termi-
nals for control wiring and easy to install electric heaters all combine to
make the installation easy, and minimize installation cost.
SECTION II: 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.
LIST OF SECTIONS
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
BLOWER SPEED CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .6
UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
LIST OF FIGURES
Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Blower Speed Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
LIST OF TABLES
Blower Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Electrical Data - Cooling Only (60 Hz) . . . . . . . . . . . . . . . . . . . . . . . . .7
Air Flow Data - 60 Hz Models (115 Volt) . . . . . . . . . . . . . . . . . . . . . . .7
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.
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage.
A fire or electrical hazard may result causing property damage, per-
sonal injury or loss of life.
ISO 9001
Certified Quality
Management System
262673-UIM-B-0707

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Summary of Contents for York MA - 115V

  • Page 1: Table Of Contents

    INSTALLATION MANUAL MODULAR AIR HANDLERS ISO 9001 MODELS: MA - 115V Certified Quality Management System LIST OF SECTIONS GENERAL ..........1 LINE POWER CONNECTIONS .

  • Page 2: Safety Requirements

    262673-UIM-B-0707 Install this air handler only in a location and position as specified in Also check to be sure all accessories such as heater kits, suspension SECTION III of these instructions. kits, and coils are available. Installation of these accessories or field conversion of the unit should be accomplished before setting the unit in Always install the air handler to operate within the air handler’s place or connecting any wiring, electric heat, ducts or piping.

  • Page 3: Typical Installation With Mc Or Fc Evaporator Coil

    262673-UIM-B-0707 HORIZONTAL RIGHT HORIZONTAL LEFT UPFLOW DOWNFLOW FIGURE 1: Typical Installation with MC or FC Evaporator Coil DOWNFLOW AND HORIZONTAL CONVERSION AIR HANDLER AND COIL UPFLOW AND HORIZONTAL INSTRUCTIONS These air handler units are supplied ready to be installed in a upflow, downflow and left or right hand horizontal position.

  • Page 4: Dimensions & Duct Connection Dimensions

    262673-UIM-B-0707 10-3/8” TOP OUTLET DIMENSIONS CIRCUIT BREAKER PANEL 22” 20-1/2” BOTTOM INLET DIMENSIONS FIGURE 3: Dimensions & Duct Connection Dimensions TABLE 1: Dimensions Dimensions Wiring Knockouts MODELS Height Width Power Control 17-1/2 16-1/2 14-19/32 7/8” 18-3/32 1-3/8” (1”) 7/8” (1/2”) 1-23/32”...

  • Page 5: Low Voltage Control Connections

    262673-UIM-B-0707 HUM OUT HEAT ENABLE RELAY OUTPUT RELAY OUTPUT JUMPER LOW FAN RELAY OUTPUT MODE JUMPER HUM STAT JUMPER FUSE SPARE JUMPER FIGURE 5: Control Board SECTION IV: LOW VOLTAGE CONTROL HUMIDITY SWITCH INPUT CONNECTIONS The air handler control is designed to work with a humidity control that closes when the humidity is below the set-point.

  • Page 6: Fault Codes

    262673-UIM-B-0707 Hum Stat Jumper LOW FAN The HUM STAT jumper configures the control to monitor the humidity The LOW FAN output can be used to drive an external relay (24 VAC switch input. With the jumper in the NO position, the control will ener- coil) that switches the power input to the motor to a lower speed tap.

  • Page 7: Unit Data

    262673-UIM-B-0707 SECTION VIII: UNIT DATA TABLE 6: Physical and Electrical Data Models: MA Blower - Diameter x Width 10 x 9 10 x 10 11 x 10 Motor Nominal RPM 1075 1075 1075 Voltage 115V 115V 115V Amps Full Load (115) 11.4 11.2 Type...

  • Page 8: Maintenance

    The frequency of cleaning depends upon the hours of operation and the local atmospheric conditions. Clean filters keep unit efficiency high. Subject to change without notice. Printed in U.S.A. 262673-UIM-B-0707 Copyright © by York International Corp. 2007. All rights reserved. Supersedes: 262673-UIM-A-0706 Unitary 5005 Norman...

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