Manuals / Carrier / Household Appliance / Heating System

Carrier 48MA/50ME016-040 specifications Ð Control Relay

Models: 48MA/50ME016-040

1 48

Download 48 pages 46.89 Kb

Page 16

Manual background

LEGEND

CÐ Contactor

CR	Ð Control Relay
GV	Ð Gas Valve
HA	Ð Heat Anticipator
HR	Ð Heating Relay
TC	Ð Thermostat, Cooling
TH	Ð Thermostat, Heating

TRAN Ð Transformer

Screw Terminal

Quick-Connect Terminal

Factory Control Wires

Printed Circuit

Field Wiring

*One for each module.

NOTES:

1.COOLING

Stage 1 Ð First stage of modules 1 and 2

HEATING

Stage 1 Ð First stage of modules 1 and 2

2.Set heat anticipator (HA1) at .26.

Fig. 11 Ð 48MA; One-Stage Heat, One-Stage Cool Ð 2 Nested Modules, Joint Zone Control

16

Image 16

Carrier 48MA/50ME016-040 specifications Ð Control Relay

Contents

CONTENTS Outdoor-AirThermostat AdjustmentCompressor Capacity Control Unloaders Installation, Start-Up and Service InstructionsSAFETY CONSIDERATIONS INSTALLATIONDIMENSIONS ft-in UNIT48MA 016-030DIMENSIONS ft-in UNIT50ME 016-030Removing Shipping Shields Fig Fig. 3 Ð Roof Curb DetailTable 1 Ð Physical Data OPERATING WEIGHT lbUnloader Settings psig Maximum Allowable Inlet Temperature FDIMENSIONS ft-in UNIT48MA 016-030DIMENSIONS ft-in UNIT50ME 016-030016-030Units Shown Fig. 6 Ð Shipping Shield LocationsFig. 7 Ð Field-FabricatedZone Duct Plenum Detail Fig. 9 Ð Field Power Supply Details Fig. 8 Ð Suggested Gas Piping 48MATable 2 Ð Unit 48MA Electrical Data Table 3 Ð Unit 50ME Electrical Data Table 4 Ð Electric Resistance Heater DataTable 5 Ð Unit 50ME Electrical Application Data Field Control Wiring Fig. 10 Ð Zone Control Board Component LocationPage 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 Connections4.Remove burner access panel Fig. 33 Ð Spoiler Screw Location LEGEND COMPR Ð Compressor COND Ð CondensingUNITS WITH 2-ELEMENTHEATERS SERVICE Cabinet Panels and Grilles Air¯ow SwitchesHead Pressure Control Compressor Capacity Control UnloadersFig. 36 Ð Compressor Capacity Control Unloader Fig. 38 Ð Condenser-FanAdjustment Condenser FansEvaporator Fans and Motor Fig. 37 Ð Motormaster ThermistorOptional Economizer Ð See Fig Forced-DraftBlower 48MAFig. 39 Ð Forced-DraftBlower Shutter Position LEGEND 1Ð Bearing Liner 2Ð Speed Nut 5¤16 in 3Ð Washer 4Ð Rivet 5Ð Speed Nut 7¤16 in6Ð Speed Nut 1¤4 in 7Ð Damper Lever 8Ð Linkage Bar 9Ð Linkage Rod 15 inPage Page PACKAGED SERVICE TRAINING Page TEMPERATURES PRE-START-UPELECTRICAL PRESSURES