Manuals / Carrier / Household Appliance / Heating System

Carrier 48MPD Ð Heat Interlock Relay, Ð Accessory Humidity Control, Ð Fire/Smoke Control

Models: MPE62L-10R 50MP62L-10R 48MPD

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Page 20

Fig. 15 Ð Heat Interlock Relay

		DSIO2
		J5
		12	RED
		11	BLU
		10	ORN
	CHANNEL
		60
		LEGEND
TB	Ð	Terminal Block
		Field Wiring

TB3

8

9

10

FIELD CONTROL WIRING

TB3

7

12

13

15

ACCESSORY

OUTSIDE AIR

RELATIVE HUMIDITY

21

J2 J1

12

21

J2 J1

12

SPACE/RETURN RELATIVE HUMIDITY

FIELD-SUPPLIED 24-V ISOLATED POWER SUPPLY

24V

FIELD-SUPPLIED 24-V ISOLATED POWER SUPPLY

24V

	Component Terminal	LEGEND
	Terminal Block Terminal	TB Ð Terminal Block
	Fig. 15 Ð Heat Interlock Relay	Field Wiring
	Fig. 15 Ð Heat Interlock Relay	Component Terminal
		Component Terminal
		Terminal Block Terminal
		Fig. 18 Ð Accessory Humidity Control

ENTHALPY CONTROL

ENTHALPY SENSOR

J7

PRESSURIZATION

TB2

SR

S

19

22

PURGE

EVACUATION

6

REMOVE

25

620 Ω RESISTOR

+

+

28

SHUTDOWN

DIFFERENTIAL

ENTHALPY SENSOR

(RETURN AIR)

PSIO

NO. 2

LEGEND

TB Ð Terminal Block Field Wiring

Fig. 16 Ð Differential Enthalpy Sensor

Component Terminal

Terminal Block Terminal

Fig. 19 Ð Fire/Smoke Control

LEGEND

DSIO Ð Relay Module

Fig. 17 Ð Remote Start

FIELD-SUPPLIED 24-V ISOLATED POWER SUPPLY

24V

J7

16

17

PSIO

NO. 2

9 +

1

INDOOR AIR QUALITY ACY

10 -

5

Fig. 20 Ð Indoor Air Quality

20

Image 20

Carrier 48MPD Ð Heat Interlock Relay, Ð Accessory Humidity Control, Ð Differential Enthalpy Sensor, Ð Fire/Smoke Control

Contents

Installation, Start-Upand Service Instructions CONTENTSCONTENTS cont SAFETY CONSIDERATIONSGENERAL Compressor Suction and DischargeCopy continues on page INSTALLATIONInstall Outdoor Hoods Table 1 Ð Physical Data Table1 Ð Physical Data cont Table 2 Ð Optional Power Exhaust Specications Table 3 Ð Compressor Oil ChargeFig. 1 Ð Roof Curb Dimensions, 48/50MP62L and 70M Fig. 2 Ð Roof Curb Dimensions, 48/50MP82N-10R Fig. 3 Ð Base Unit Dimensions, 48MP62L, 70M Fig. 4 Ð Base Unit Dimensions, 48MP82N-10R Fig. 5 Ð Base Unit Dimensions, 50MP62L and 70M Fig. 6 Ð Base Unit Dimensions, 50MP82N-10R Fig. 7 Ð Rigging Label Fig. 11 Ð Outdoor Air Hoods Installed Field Electrical ConnectionsMake Electrical Connections Fig. 9 Ð Condensate Drain Piping DetailsFig. 12 Ð Field Power Wiring Connections Table 5 Ð Electrical Data Table 6 Ð Recommended Sensor and Device Non-ShieldedCableFig. 13 Ð Space Temperature Sensor Wiring Fig. 14 Ð Space Temperature Sensor Averaging Fig. 18 Ð Accessory Humidity Control Fig. 15 Ð Heat Interlock RelayFig. 16 Ð Differential Enthalpy Sensor Fig. 19 Ð Fire/Smoke ControlFig. 26 Ð Remote Supply Air Temperature Reset/Space Temperature OffsetFig. 21 Ð Outdoor Air¯ow Control Fig. 22 Ð Timed Discrete OutputFig. 28 Ð CCN Building Supervisor TRANSDUCER ACCESSORYFig. 27 Ð Transducer/Thermistor Fig. 29 Ð Optional VFD Ð Wiring Connections Table 7 Ð CCN Connection Approved Shielded CablesThe following color code is recommended Fig. 31 Ð Auxiliary Control Box Location 50MP70M Unit ShownFig. 33 Ð Air Pressure Tubing Locations Fig. 32 Ð Auxiliary Control BoxInstalling Flue/Inlet Hoods 48MP Units Only Fig. 36 Ð Inlet Hood Assembly Fig. 37 Ð Flue HoodFig. 34 Ð Gas Piping Details Fig. 35 Ð Flue and Inlet Hood LocationsFig. 39 Ð Fan isolator Adjustment Check Compressor MountingFig. 38 Ð Flue De¯ector Baffle Assembled Fig. 40 Ð Outer View, Compressor MountingRail Assembly Ð 48/50MP70M-10RUnits Rail Assembly Ð 48/50MP70M-10RUnitsPRE-START-UP System CheckEvaporator-FanBelts, Pulleys, and Sheaves Ð Fig. 44 Ð Operating Oil Levels Sight GlassAIRFLOW AIRFLOW Table 13 Ð Fan Performance Air Foil Ð 48/50MP62L Table 14 Ð Fan Performance Air Foil Ð 48/50MP70M Table 15 Ð Fan Performance Air Foil Ð 48/50MP82NTable 16 Ð Fan Performance Air Foil Ð 48/50MP90P Table 17 Ð Fan Performance Air Foil Ð 48/50MP10RTable 20 Ð Maximum Allowable Power Exhaust Table 22 Ð Filter Switch Dirty Set PointControls Conguration and Quick Test Table 18 Ð Component Pressure Drop in. wgFig. 46 Ð Psychrometric Chart for Fig. 47 Ð Wiring Connections for Solid-StateEnthalpy Control Enthalpy Sensor HH57AC077Table 24 Ð Set Point Ranges and Defaults START-UP Initial Check Table 25 Ð Basic Conguration DataGeneral Table 26 Ð IGC Control Board LED Alarms Control Loop Checkout CONTROL SYSTEM ComponentsTable 29 Ð Index of Lead/Lag Circuits and CompressorsKEYPAD AND DISPLAY MODULE HSIO FUNCTIONS Fig. 49 Ð VFD Digital Operator SERVICETable 30 Ð Variable Frequency Drive VFD Display Fig. 51 Ð Access Locations 48MP70M Unit Shown Fig. 50 Ð Door LatchLubrication Refrigerant CircuitFig. 52 Ð Burner Section Detail Fig. 53 Ð Removing Heat Exchanger CeramicFig. 57 Ð Chrging Chart Ð Unit 48/50MP82N Fig. 55 Ð Charging Chart Ð Unit 48/50MP62LFig. 56 Ð Charging Chart Ð Unit 48/50MP70M Fig. 58 Ð Charging Chart Unit 48/50MP90P Fig. 59 Ð Charging Chart Ð Unit 48/50MP10RAdjustments Fig. 61 Ð Motor Plate Adjustment Fig. 60 Ð 06E Compressors, TypicalGas Valve Adjustment Protective DevicesFig. 62 Ð Pulley Alignment Fig. 63 Ð Gas ValveVariable Frequency Drive VFD High-VoltageRelay Modules DSIO1 and DSIO2 InstallationProcessor Modules PSIO Fig. 64 Ð Condenser Fan Adjustment Compressor Replacement Ð Perform the followingTROUBLESHOOTING TROUBLESHOOTING AND DIAGNOSTICS TROUBLESHOOTING AND DIAGNOSTICS cont Fig. 65 Ð IGC Control Heating Ð 48MP Units Only Page PACKAGED SERVICE TRAINING CALL FOR FREE CATALOGSTART-UPCHECKLIST I. PRE-START-UPIII.PRELIMINARY CHECKLIST ITEMS cont CHANGES TO DEFAULT VALUESTEMPERATURES IV. START-UPCONTROL CONFIGURATION VALUES IN INDICATE FACTORY DEFAULTSCL-3 KEYBOARDCONSTANT VOLUME CONTROL CONFIGURATION KEYBOARDDISPLAY DESCRIPTION