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INSTALLATION MANUAL
HD SERIES HORIZONTAL DUCT COILS FOR
COOLING/HEAT PUMPS
FIELD INSTALLED TXV - FLEX COILS
MODELS: HD
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
COIL METERING DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CONDENSATE DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 4
Component Location - HD Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Coil - HD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Horizontal Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Coil Air Flow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
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.
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.
LIST OF SECTIONS
REFRIGERANT LINE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . .4
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
AIR SYSTEM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION VERIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LIST OF FIGURES
Drain Pan Extension Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TXV Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Drain Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
LIST OF TABLES
Air Flow Data - Static Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . .4
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
cleaners or other cleaning tools.
2. Soap powders, bleaches, waxes or other Cleaning com-
pounds; plastic items or containers; gasoline, kerosene, ciga-
rette 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.
SECTION II: GENERAL INFORMATION
This instruction covers the installation of the following coils with 80+ or
90+ AFUE furnaces or MA/MX/MV air moving systems.
The coils have sweat connect fittings. All coils are shipped with a low
psi nitrogen holding charge.
FIGURE 1: Component Location - HD Coil
ISO 9001
Certified Quality
Management System
COIL
TXV - BULB
TXV
900590-UIM-B-0613
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Summary of Contents for Johnson HD Series
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Page 1: Table Of Contents
INSTALLATION MANUAL HD SERIES HORIZONTAL DUCT COILS FOR COOLING/HEAT PUMPS FIELD INSTALLED TXV - FLEX COILS MODELS: HD ISO 9001 Certified Quality Management System LIST OF SECTIONS SAFETY ..........1 REFRIGERANT LINE CONNECTION . -
Page 2: Coil Metering Devices
900590-UIM-B-0613 INSPECTION CLEARANCES As soon as a coil is received, it should be inspected for possible dam- During Installation age during transit. If damage is evident, the extent of the damage Clearance must be provided for: should be noted on the carrier’s delivery receipt. A separate request for Refrigerant piping and connections inspection by the carrier’s agent should be made in writing. -
Page 3: Duct Connections
900590-UIM-B-0613 COIL INSTALLATION SCREW These horizontal coils are designed for installation with a horizontal TXV BULB (gas or oil fired) furnace or modular blower. A minimum 45° transition (Cover completely must be field fabricated to allow proper air distribution through the coil. with insulation) Airflow direction must be as shown in Figure 4. -
Page 4: Condensate Drain Connections
900590-UIM-B-0613 SECTION V: CONDENSATE DRAIN Connect lines as follows: CONNECTIONS NOTICE All drain lines should be pitched away from unit drain pan and should be no smaller than the coil drain connection. Route the refrigerant lines to the coil in a manner that will not obstruct Route the drain line so that it doesn’t interfere with accessibility to the service access to the coil, air handling system, furnace flue or filter. -
Page 5: Pressure Check
900590-UIM-B-0613 SECTION IX: INSTALLATION VERIFICATION Is coil metering device installed correctly? Was the correct TXV installed per the outdoor unit instructions? Is the TXV Bulb positioned correctly? Was the coil still under pressure when received? Is Bulb Insulated? Is Equalizer Line connected? FIGURE 7: TXV Check List Were the primary and secondary drains trapped correctly? - Page 6 NOTES *900590 Subject to change without notice. Published in U.S.A. 900590-UIM-B-0613 Copyright © 2013 by Johnson Controls, Inc. All rights reserved. Supersedes: 900590-UIM-A-1012 York International Corp. 5005 York Drive Norman, OK 73069...