York MC18A Installation Manual

INSTALLATION MANUAL

FULL-CASED MULTI-POSITION FOR
COOLING/HEAT PUMPS
MODELS: MC
FULL-CASED UPFLOW/COUNTERFLOW FOR
COOLING/HEAT PUMPS
MODELS: FC
PARTIAL-CASED UPFLOW FOR COOLING/HEAT PUMP
MODELS: PC
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
COIL METERING DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
COIL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Component Location - Coil MC & FC . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Component Location - Coil PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TXV Bulb Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Duct Flanges - Coil FC/MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vertical Applications with Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Horizontal Right Application with Furnaces . . . . . . . . . . . . . . . . . . . . . 5
Horizontal Left Application with Furnaces . . . . . . . . . . . . . . . . . . . . . . 5
Dimensions - MC Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dimensions - FC Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Dimensions - PC Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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.
WARNING
!
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.
LIST OF SECTIONS
CONDENSATE DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 6
REFRIGERANT LINE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . 7
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AIR SYSTEM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION VERIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LIST OF FIGURES
Upflow - PC Coil Installation with Furnace . . . . . . . . . . . . . . . . . . . . . 5
Condensate Deflector on Vertical Drain Pan . . . . . . . . . . . . . . . . . . . 6
Condensate Deflector on Horizontal Drain Pan Edge . . . . . . . . . . . . . 6
S-Clip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TXV Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Drain Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Location of Trapped and Plugged Drain Connections . . . . . . . . . . . . 8
LIST OF TABLES
Coil Air Flow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Coil Projection Dimensions - PC Coils . . . . . . . . . . . . . . . . . . . . . . . . 5
Air Flow Data - Static Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . 7
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
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.
CAUTION
!
WARNING
!
5353649-UIM-A-0617
ISO 9001
Certified Quality
Management System