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First Co Manuals
Air Conditioner
HX Series
Installation operation & maintenance
First Co HX Series Installation Operation & Maintenance
Horizontal fan coil units
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Contents
Table of Contents
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Table of Contents
Table of Contents
Safety Considerations
Electric Shock Hazard
Nomenclature
Safety Information
Installation Precautions
Location and Clearance
General Information
Fan Coil Unit
Air Distribution Ducts
Static Pressure
Electrical
Overcurrent Protection
Operating Voltage
Thermostat Wiring
Wiring Diagrams
Minimum Room Size and Mitigation Airflow
A2L Sensor Mounting
Mounting
Physical Dimensions
Enclosure Dimensions
Cooling Coil Piping
Electric Heaters
Leak Check
Refrigerant Charging
Fire or Explosion Hazard
Refrigerant Charging Instructions
Accessories
Installation
Operation and Maintenance
Start-Up and Maintenance
Drain Piping
Laboratory Testing
Charging Procedures
Refrigerating System
Notes
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Fan Coil Unit
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Electrical
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Wiring Diagrams
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Operation and Maintenance
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Installation, Operation, &
Maintenance
IOM 4106
Rev. B 1/25
HX/HXX/HXS Series Horizontal
Fan Coil Units
ATTENTION
:
Read all instructions thoroughly and retain all manuals
for future reference.
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This manual is also suitable for:
Hxx series
Hxs series
18 hx
19 hx
24 hx
20 hx
...
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25 hx
26 h
31 hx
28 hx
32 hx
37 hx
18 hxs
19 hxs
24 hxs
20 hxs
25 hxs
30 hxs
26 hxs
32 hxs
36 hxs
28 hxx
32 hxx
37 hxx
26 hxx
31 hxx
20 hxx
25 hxx
12 hxx
19 hxx
24 hxx
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