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48/50PG C03-14
48/50PM C16-28
Single Package Rooftop Units
With COMFORTLinkt Controls Version 5.x
and PURONR (R-410A) Refrigerant
Controls, Start-Up, Operation, Service
and Troubleshooting Instructions
IMPORTANT: This literature covers 48/50PG03−14 and
48/50PM16−28 models with Comfortlink Software version 5.x.
The 48/50PG C16−28 (15 – 25 ton) model reference has been
removed from this manual; however version 5.x software is
backward compatible with all Comfortlink PG models. Refer to
past manuals for obsolete model information.
TABLE OF CONTENTS
Page
SAFETY CONSIDERATIONS 2.........................
GENERAL 3.........................................
BASIC CONTROL USAGE 3...........................
ComfortLink Control 3..............................
Scrolling Marquee 3..................................
Accessory Navigator Display 4..........................
Operation 4.........................................
System Pilot and Touch Pilot Devices 4.................
CCN Tables and Display 4.............................
Conventions Used in This Manual 6......................
START−UP 6.........................................
Unit Preparation 6....................................
Compressor Mounting 6...............................
Refrigerant Service Ports 6.............................
Crankcase Heater(s) 6.................................
Compressor Rotation 6................................
Power Supply 6.....................................
Internal Wiring 6.....................................
Evaporator Fan 6....................................
Condenser Fans and Motors 8...........................
Return−Air Filters 8..................................
Outdoor−Air Inlet Screens 8............................
Air Baffles 8........................................
Accessory Installation 8...............................
Orifice Change (48PG and 48PM) 8......................
Gas Heat (48PG and 48PM) 8..........................
EnergyX 8.........................................
CONTROLS QUICK SET−UP 8.........................
Control Set Point and Configuration Log 8................
Thermostat Control 8.................................
Space Temperature Sensor Control − Direct Wired
(T−55 or T−56 or T−59) 9.............................
T−58 Communicating Room Sensor 9....................
CCN Linkage Control 9...............................
System Pilot − Communication Space Sensor 9.............
Thermidistat Control 9................................
Space Humidistat Control 9............................
Relative Humidity Sensor Control 9......................
CCN Communication 9...............................
Accessories 9.......................................
Programming Operating Schedules 10....................
SERVICE TEST 12....................................
Independent Outputs 12...............................
Fan Test 12.........................................
Cooling Test 12.....................................
Humidi−MiZer Test 12..............................
Heating Test 13......................................
THIRD PARTY CONTROL 13..........................
Cooling/Heating Control 13............................
Dehumidification Control 13...........................
Remote Occupancy 13................................
Fire Shutdown 13....................................
Alarm Output 13.....................................
Economizer Monitoring 14.............................
Economizer Damper Control 14.........................
CONTROLS OPERATION 14...........................
Display Configuration 14..............................
Unit Configuration 14.................................
Modes 15..........................................
General Operation 16.................................
Temperature Setpoint Determination 16...................
Occupancy Determination 17...........................
Indoor Fan Operation 17...............................
Cooling Operation 18.................................
Heating Operation 21.................................
Economizer 23......................................
Optional Humidi−MiZer Dehumidification System 24......
Indoor Air Quality (IAQ) 30............................
EnergyX 34........................................
Adaptive Fan 34.....................................
Temperature Compensated Start 35.......................
Carrier Comfort Network (CCN) Configuration 35.........
Demand Limit 36....................................
Linkage 36.........................................
Alarm Handling 37...................................