48/50PG C03---28
48/50PM C16---28
Single P a ckage Roof top Units
With COMFOR TLinkt Controls V ersion 4.x
and PURONR (R---410A) Refrigerant
Cont ro ls , St art---Up, Operat io n, Service
and Tro uble s ho oting Ins t ructions
TABLE OF CONTENTS
Page
SAFETY CONSIDERATIONS 2.........................
GENERAL 3.........................................
BASIC CONTROL USAGE 3...........................
ComfortLinkt Control 3..............................
Scrolling Marquee 3..................................
Accessory Navigator Display 4..........................
Operation 4.........................................
System Pilott and Touch Pilot Devices 4.................
CCN T ables 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....................................
Subcooler Heat Exchanger (SHX) (48/50PG20--28 Only) 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..........................
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--MiZert Test 12..............................
Heating Test 13......................................
THIRD PARTY CONTROL 13..........................
Cool
ing/H
eating 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.................................
Setpoint Determination 16.............................
Occupancy Determination 17...........................
Indoor Fan Operation 17...............................
Cooling Operation 18.................................
Heating Operation 21.................................
Economizer 23......................................
Optional Humidi--MiZert Dehumidification System 24......
Indoor Air Quality (IAQ) 30............................
Adaptive Fan 35.....................................
Temperature Compensated Start 36.......................
Carrier Comfort Network (CCN)R Configuration 36.........
Demand Limit 37....................................
Linkage 37.........................................
Alarm Handling 38...................................
Copyright 2009 Ca rrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 7/09
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No:48---50PGPM---02T
R e p l a c e s : 4 8 --- 5 0 P G P M --- 0 1 T
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