Carrier WEATHERMAKER 48A4, Wiring Diagrams

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-56480002-01 Printed in U.S.A. Form 48/50A-3W Pg 1 508 4-08 Replaces: New
Wiring Diagrams
INDEX
ACCESSORIES
NOTE: Accessory wiring is shown on the unit wiring diagrams. Refer
to the appropriate drawing for accessory wiring.
TYPE UNIT NUMBER FIG. NO.
Component Arrangement
48/50A2,A3,A4,A5020-035 48EJ502489 1
48/50A2,A3,A4,A5040-060 48EJ503652 2
Power Schematic
48/50A2,A3,A4,A5020-050 50EJ500470 3
48/50A2,A3,A4,A5060 RTPF 50EJ500469 4
48/50A2,A3,A4,A5060 MCHX 50EJ500420 5
Main Control Box Circuit 48/50A2,A3,A4,A5020-060 50EJ500440 6
Auxiliary Control Box Wiring 48/50A2,A3,A4,A5020-060 48EJ503076 7
Controls Expansion
Board Wiring
48/50A2,A3,A4,A5020-060 48EJ503086 8
Gas Heat Control Circuit
(2-Stage Heat)
48A2,A3,A4,A5020-050 48EJ503079 9
48A2,A3,A4,A5060 48EJ503679 10
Gas Heat Control Circuit
(Staged Gas Heat)
48A2,A3,A4,A5020-050 48EJ502488 11
48A2,A3,A4,A5060 48EJ503680 12
Electric Heat Control Circuit
50A2,A3,A4,A5020-050 48EJ503080 13
50A2,A3,A4,A5060 48EJ503655 14
ACCESSORY UNIT FIG. NO.
Motormaster® V Low Ambient Controller
48/50A2,A3,A4,A5020-035 15
48/50A2,A3,A4,A5040,050 AND 060 RTPF Units 16
48/50A2,A3,A4,A5060 MCHX Units 17
Space Sensor Temperature Averaging 48/50A2,A3,A4,A5020-060 18
Thermostat
48/50A2,A3,A4,A5020-060 6
Remote Economizer Position Override
Remote Economizer Minimum Position Set Point
Remote 4 to 20 mA Economizer Position
Space IAQ Sensor
Outdoor Enthalpy Changeover Sensor
48/50A2,A3,A4,A5020-060 7
Differential Enthalpy Changeover Sensor
Outdoor Air Quality Sensor
48/50A2,A3,A4,A5020-060 8
Remote Supply Air Set Point
Demand Limit Controller
Fan Status Switch
Demand Limit
Fire Pressurization
Fire Evacuation
Fire Smoke Purge
IAQ Override Switch
WEATHERMAKER ®
48/50A2,A3,A4,A5020-060
Single Package Rooftop
Gas Heating/Electric Cooling and Electric Cooling Units
with COMFORT LINK™ Controls