Johnson Controls UC Installation Manual
Johnson Controls UC Installation Manual

Johnson Controls UC Installation Manual

Un-cased “a” coils upflow for cooling/heat pumps

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INSTALLATION MANUAL
UN-CASED "A" COILS
UPFLOW FOR COOLING/HEAT PUMPS
FLEX COILS FOR FIELD INSTALLED TXV
MODELS: UC
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COIL METERING DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CONDENSATE DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 4
Component Location - Coil UC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Coil - UC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TXV Bulb Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Upflow Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions - UC Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Coil Air Flow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SECTION I: 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 indicated 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 damage.
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 maintenance
can cause injury or property damage. Refer to this manual for assis-
tance or additional information, consult a qualified installer or service
agency.
Johnson Controls Unitary Products
LIST OF SECTIONS
REFRIGERANT LINE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . .4
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
AIR SYSTEM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
INSTALLATION VERIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LIST OF FIGURES
Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TXV Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Drain Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LIST OF TABLES
Coil Projection Dimensions - UC Coils . . . . . . . . . . . . . . . . . . . . . . . . .4
Air Flow Data - Static Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . .5
This product must be installed in strict compliance with the enclosed
installation instructions and any applicable local, state, and national
codes including, but not limited to building, electrical, and mechanical
codes.
The furnace area must not be used as a broom closet or for any other
storage purposes, as a fire hazard may be created. Never store items
such as the following on, near or in contact with the furnace.
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum clean-
ers or other cleaning tools.
2. Soap powders, bleaches, waxes or other Cleaning compounds;
plastic items or containers; gasoline, kerosene, cigarette lighter
fluid, dry cleaning fluids or other volatile fluid.
3. Paint thinners and other painting compounds.
4. Paper bags, boxes or other paper products
Never operate the furnace with the blower door removed. To do so
could result in serious personal injury and/or equipment damage.
ISO 9001
Certified Quality
Management System
900589-UIM-A-1012

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Summary of Contents for Johnson Controls UC

  • Page 1: Table Of Contents

    Dimensions - UC Coils ........
  • Page 2: General Information

    CONNECTION 4. Filter removal / change 5. Removal of coil assembly LIQUID LINE CONNECTION PRIMARY ALTERNATE SECONDARY DRAIN DRAIN DRAIN LOCATIONS FIGURE 1: Component Location - Coil UC Refrigerant Dimensions Connections Models Height Width Line Size Liquid Vapor UC18A UC18B...
  • Page 3: Coil Metering Devices

    For a longer term delay, use plugs or caps. There is no need TXV METERING DEVICE to purge the coil if this procedure is followed. COIL INSTALLATION - UC VAPOR These upflow coils are designed for installation on top of upflow fur- LINE naces only.
  • Page 4: Duct Connections

    If the secondary drain is not used it must be capped. 3” (MIN.) UPFLOW FURNACE Avoid Double Trapping. FIGURE 5: Upflow Coil Installation TABLE 3: Coil Projection Dimensions - UC Coils Threaded drain connections should be hand tightened, plus no more COIL SIZE DIMENSION “C” INCH than 1 turn. UC18...
  • Page 5: Coil Cleaning

    (All other drain connections should be plugged) FIGURE 9: Location of Trapped and Plugged Drain Connections Was the coil still under pressure when received? Depress schrader core to check for pressure one time. FIGURE 6: Pressure Check Johnson Controls Unitary Products...
  • Page 6 NOTES *900589* Subject to change without notice. Published in U.S.A. 900589-UIM-A-1012 Copyright © 2012 by Johnson Controls, Inc. All rights reserved. Supersedes: 841941-UIM-B-0612 York International Corp. 5005 York Drive Norman, OK 73069...

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