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Carrier
48MA/50ME016-040 specifications
Models:
48MA/50ME016-040
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Install
Dimension
Field Control Wiring
Gas Heat Lighting Procedure 48MA
Adjustment Range cfm
Checklist
Ð Field Power Supply Details
SERVICE Cabinet Panels and Grilles
Remove burner access panel
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Contents
CONTENTS
Outdoor-AirThermostat Adjustment
Compressor Capacity Control Unloaders
Installation, Start-Up and Service Instructions
SAFETY CONSIDERATIONS
INSTALLATION
DIMENSIONS ft-in
UNIT
48MA
016-030
DIMENSIONS ft-in
UNIT
50ME
016-030
Removing Shipping Shields Fig
Fig. 3 Ð Roof Curb Detail
Table 1 Ð Physical Data
OPERATING WEIGHT lb
Unloader Settings psig
Maximum Allowable Inlet Temperature F
DIMENSIONS ft-in
UNIT
48MA
016-030
DIMENSIONS ft-in
UNIT
50ME
016-030
Fig. 7 Ð Field-FabricatedZone Duct Plenum Detail
Fig. 6 Ð Shipping Shield Locations
016-030Units Shown
Fig. 9 Ð Field Power Supply Details
Fig. 8 Ð Suggested Gas Piping 48MA
Table 2 Ð Unit 48MA Electrical Data
Table 3 Ð Unit 50ME Electrical Data
Table 4 Ð Electric Resistance Heater Data
Table 5 Ð Unit 50ME Electrical Application Data
Field Control Wiring
Fig. 10 Ð Zone Control Board Component Location
Page
Ð Control Relay
Page
LEGEND CÐ Contactor
LEGEND CÐ Contactor
LEGEND CÐ Contactor
Page
LEGEND CÐ Contactor
LEGEND CÐ Contactor
LEGEND CÐ Contactor
LEGEND CÐ Contactor
Page
LEGEND CÐ Contactor
Page
LEGEND CÐ Contactor
Page
Page
LEGEND CÐ Contactor
LEGEND CÐ Contactor
START-UP
Gas Heat Lighting Procedure 48MA
Fig. 30 Ð Humidistat Connections
4.Remove burner access panel
Fig. 33 Ð Spoiler Screw Location
LEGEND COMPR Ð Compressor COND Ð Condensing
UNITS WITH 2-ELEMENTHEATERS
SERVICE Cabinet Panels and Grilles
Air¯ow Switches
Fig. 36 Ð Compressor Capacity Control Unloader
Compressor Capacity Control Unloaders
Head Pressure Control
Fig. 38 Ð Condenser-FanAdjustment
Condenser Fans
Evaporator Fans and Motor
Fig. 37 Ð Motormaster Thermistor
Fig. 39 Ð Forced-DraftBlower Shutter Position
Forced-DraftBlower 48MA
Optional Economizer Ð See Fig
LEGEND 1Ð Bearing Liner 2Ð Speed Nut 5¤16 in
3Ð Washer 4Ð Rivet 5Ð Speed Nut 7¤16 in
6Ð Speed Nut 1¤4 in 7Ð Damper Lever
8Ð Linkage Bar 9Ð Linkage Rod 15 in
Page
Page
PACKAGED SERVICE TRAINING
Page
TEMPERATURES
PRE-START-UP
ELECTRICAL
PRESSURES
