Carrier ESH5X Installation Instructions Manual

ESH5X / W5SH: Installation Instructions
ESH5X / W5SH
Horizontal Duct Coils for R-454B Refrigerant
Heating and Cooling
IMPORTANT: This unit is to be used with R-454B refrigerant only. This system includes an internal sensor to detect any refrigerant leaks with an
external control board that must be connected to a furnace. This is only compatible with outdoor condensers that are R-454B certified.
NOTE: Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSPECT EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Check Existing Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Insulate and Vapor-proof Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Install Coil in Supply Air Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Refrigerant Line Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connect Refrigerant, Liquid, and Suction Lines . . . . . . . . . . . . . . 3
Table 1 - Coil Connection Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TXV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Leak Dissipation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
24V Control System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 2 - Dissipation System Wiring Label . . . . . . . . . . . . . . . . . 6
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3 - Communication Plug Designations . . . . . . . . . . . . . . . . 7
Leak Dissipation System Installation. . . . . . . . . . . . . . . . . . . . . . . 7
Table 4 - Dissipation Board Test Button Functions . . . . . . . . . . . 8
Table 5 - Required Operational Checks to Ensure Proper Dissipation
System Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 6 - Required Minimum Dissipation Mode Airflows,
based on Total System Refrigerant Charge Quantity. . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Sequence of Events - Dissipation Mode . . . . . . . . . . . . . . . . . . . 8
Flash Codes / Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 7 - Flash Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
UNIT START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Air Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Condensate Pan and Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cleaning Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, 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.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Installation Instructions
In Canada, refer to the current editions of the Canadian Electrical Code
CSA C22.1.
Recognize safety information. This is the safety-alert symbol
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.
1
WARNING
!
PROPERTY DAMAGE HAZARD - FURNACE/COIL
MATCHING
Failure to follow this warning could result in property damage, personal
injury, or death.
This coil must be matched to heating equipment that meets all
CSA/ANSI Z21.47 or cooling equipment that meets UL 60335-2-40.
Refer to the furnace/blower installation instructions for any potential
considerations when installing coils with composite drain pans.
CAUTION
!
PARTIAL UNIT REQUIREMENTS
Failure to follow this warning could result in equipment damage.
This family of evaporator coils are PARTIAL UNIT HEAT PUMP OR
AIR CONDITIONER, complying with PARTIAL UNIT requirements
of UL/CSA 60335-2-40 Standard, and must only be connected to other
units that have been confirmed as complying to corresponding
PARTIAL UNIT requirements of this UL/CSA 60335-2-40 Standard.
WARNING
!
PERSONAL INJURY / PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in property damage, personal
injury, or death.
For continued performance, reliability, and safety, the only approved
accessories and replacement parts are those specified by the equipment
manufacturer. The use of non-manufacturer approved parts and
accessories could invalidate the equipment limited warranty and result
in fire risk, equipment malfunction, and failure. Please review
manufacturer's instructions and replacement part catalogs available
from your equipment supplier.
. When