International comfort products ENH4X Installation Instructions Manual

INSTALLATION INSTRUCTIONS
NOTE: Read the entire instruction manual before starting
the installation.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Right and Left with Pan Extension
Furnace Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Attic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Crawl Space
Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect Refrigerant Liquid and Suction Lines
Connect Condensate Drain Line
Waste Line Connection
Model Number Identification
SAFETY CONSIDERATIONS
Improper installation, adjustment,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause death, personal
injury or property damage. Consult a qualified installer,
service agency, or your distributor or branch for information
or assistance. The qualified installer or agency must use
factory--authorized kits or accessories when modifying this
product. Refer to the individual instructions packaged with
the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective
clothing and work gloves. Use quenching cloths for brazing
operations. Have fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
attached to the unit. Consult local building codes and the
current editions of the National Electrical Codes (NEC)
NFPA 70.
In Canada, refer to the current editions of the Canadian
Electrical Code CSA C22.1.
Recognize safety information. This is the safety--alert
symbol . When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING and
CAUTION. These words are used with the safety--alert
symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING
signifies hazards which could result in personal injury or
death. CAUTION is used to identify unsafe practices, which
may result in minor personal injury or product and property
damage. NOTE is used to highlight suggestions which will
result in enhanced installation, reliability, or operation.
NOTE: Nitrogen can leak out through the needle pierce
hole in the plugs. This does not indicate a leaking coil nor
warrant return of the coil.
Cased N Coil, Horizontal
ENH4X
PAGE
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alteration, service,
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
1
Before installing, modifying or servicing system, always
2
turn off main power to system. There may be more than
2
one disconnect switch. Lock out and tag switch with a
suitable warning label.
3
3
4
!
4
4
PERSONAL INJURY HAZARD
4
Failure to follow this caution may result in personal
injury.
5
This coil contains Nitrogen precharge of 15 PSIG.
5
Release of this pressure through the center of the
6
rubber plugs is required before removing the plugs.
!
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing and
gloves when handling parts.
WARNING
CAUTION
CAUTION
484 01 3700 01 December 2011