Carrier 50TC Series User Manual

2
Field Connections 37..........................
Space Temperature (SPT) Sensors 37............
Indoor Air Quality (CO
2
)Sensor 37.............
Outdoor Air Quality Sensor 38.................
Space Relative Humidity Sensor or Humidistat 38..
Smoke Detector/Fire Shutdown (FSD) 39.........
Connect ing Discrete Inputs 39..................
Communication Wiring -- Protocols 40............
General 40.................................
Local Access 41..............................
RTU Ope n Controller Troubleshooting 41........
Outdoor Air Enthalpy Control 42.................
Differential Enthalpy Control 42................
Return Air Enthalpy Sensor 43.................
Smoke Detectors 43...........................
Step 11 -- Adjust Factory--Installed Options 56........
Step 12 -- Install Accessories 56...................
Step 13 -- Check Belt Tension 57...................
START--UP CHECKLIST 59.......................
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other c onditions which may cause personal
injury or property da mage. Consult a qualified installer,
service agenc y, or your distributor or branch for
information or assistance. The qua lified 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 and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA70,
Nationa l Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to 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,
CAUTION, and NOTE. 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 da mage. NOTE is used to
highlight sugge stions which will result in enhanced
installation, reliability, or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before perform ing se rvice or maintenance operations
on unit, always turn off main power switch to unit and
install lockout tag. Unit may have more than one
power switc h.
!
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
Puronr (R--410A) refrigera nt systems operate at
higher pressures than standard R--22 systems. Do not
use R--22 service equipment or components on Puron
refrigerant equipment.
!
WARNING
PERSONAL INJUR Y AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
!
WARNING
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, safety
glasses and gloves when handling parts and servicing
air conditioning equipment.
CAUTION
!
50TC

Carrier 50TC Series Specifications

General

Brand	Carrier
Model	50TC Series
Category	Air Conditioner
Language	English