wiring diagrams · 2013-12-18 · manufacturer reserves the right to discontinue, or change at any...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 111 Catalog No. 534-80003 Printed in U.S.A. Form 48TF-1W Pg 1 2-01 Replaces: NewBook 1 4

Tab 1a 6a

Wiring DiagramsDIAGRAM INDEX

*Low NOx/California compliant units.

UNIT LABEL DIAGRAMUnit 48TF Voltage-Phase-Hertz Type Label Diagram Figure No.

004,005

208/230-1-60 Schematic/Component Arrangement 50DK508460 1208/230-3-60 Schematic/Component Arrangement 50DK508515 2

460-3-60 Schematic/Component Arrangement 50DK508518 3575-3-60 Schematic/Component Arrangement 50DK508521 4

208/230-3-60* Schematic/Component Arrangement 50DK509082 5460-3-60* Schematic/Component Arrangement 50DK509084 6

006

208/230-1-60 Schematic/Component Arrangement 50DK508514 7208/230-3-60 Schematic/Component Arrangement 50DK508516 8


208/230-3-60* Schematic/Component Arrangement 50DK509083 11460-3-60* Schematic/Component Arrangement 50DK509085 12

007208/230-3-60 Schematic/Component Arrangement 50DK508517 13


008-014208/230-3-60 Schematic/Component Arrangement 50DK508790 16


ACCESSORY WIRINGDescription Unit Size Fig. No.

Motormaster® I Control 004-014 19

Motormaster II Control004-007 20008-014 21

Time Guard® II Device 004-014 22Solid-State Enthalpy Control 004-014 23Differential Enthalpy Control 004-014 24

EconoMi$er 004-014 25EconoMi$er Sensor Wiring 004-014 26

Power Exhaust 004-014 27

48TF004-0143 to 121/2 Tons

Gas Heating/Electric Cooling Units

2

LEGENDAHA — Adjustable Heat AnticipatorC — Contactor, CompressorCAP. — CapacitorCB — Circuit BreakerCC — Cooling CompensatorCOMP — Compressor MotorD — DiodeEC — Enthalpy ControlECON — EconomizerEPS — Emergency Power Supply

(Nine-Volt Battery)EQUIP — EquipmentER — Economizer RelayFPT — Freeze-Up Protection ThermostatGND — GroundHPS — High-Pressure SwitchHS — Hall Effect SensorI — IgnitorIDM — Induced-Draft MotorIFC — Indoor-Fan ContactorIFM — Indoor-Fan MotorIFMOVL— Indoor-Fan Motor OverloadIGC — Integrated Gas Unit ControllerLED — Light-Emitting DiodeLPS — Low-Pressure SwitchLS — Limit SwitchMGV — Main Gas ValveMTR — MotorOAT — Outdoor-Air ThermostatOFC — Outdoor-Fan ContactorOFM — Outdoor-Fan MotorOLR — Overload RelayP — PlugPL — Plug AssemblyQT — Quadruple TerminalR — Relay

RS — Rollout SwitchSAT — Supply-Air ThermostatSEN — SensorST — Start ThermistorSW1 — Switch Fully OpenSW2 — Switch Fully ClosedSW3 — Switch Minimum Vent PositionSW4 — Switch Maximum Vent PositionTC — Thermostat, CoolingTDR — Time-Delay RelayTH — Thermostat, HeatingTRAN — Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice (Marked)Factory WiringField Control WiringField Power WiringAccessory or Optional WiringTo indicate common potential only.Not to represent wiring.

Ground

| ( Capacitor

3

NOTES FOR FIG. 1, 71. If any of the original wire furnished must be replaced, it must be

replaced with Type 90 C wire or its equivalent.2. Thermostat:

HH07AT170, 172, 174, and P272-2783Subbase:HH93AZ176, 178, and P272-1882, 1883

3. Set heat anticipator at .14 amp for units with 2 stages of heating.Set stage two anticipator at .14 amps.

4. Use copper conductors only.5. TRAN is wired for 230-v unit. If unit is to be run with 208-v power

supply, disconnect BLK wire from 230-v tap and connect to 208-vtap (RED). Insulate end of 230-v tap (ORN).

NOTES FOR FIG. 2, 5, 8, 11, 13, 161. If any of the original wire furnished must be replaced, it must be

replaced with Type 90 C wire or its equivalent.2. Three-phase motors are protected under primary single-phasing

conditions.3. Thermostat:



5. Use copper conductors only.6. TRAN is wired for 230-v unit. If unit is to be run with 208-v power

supply, disconnect BLK wire from 230-v tap (ORN) and connectto 208-v (RED). Insulate end of 230-v tap.

NOTES FOR FIG. 3, 4, 6, 9, 10, 12, 14, 15, 17, 181. If any of the original wire furnished must be replaced, it must be

replaced with Type 90 C wire or its equivalent.2. Three-phase motors are protected under primary single-phasing

conditions.3. Thermostat:



5. Use copper conductors only.

4

Fig. 1 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 208/230-1-60

5

Fig. 1 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 208/230-1-60 (cont)

6

Fig. 2 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 208/230-3-60

7

Fig. 2 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 208/230-3-60 (cont)

8

Fig. 3 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 460-3-60

9

Fig. 3 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 460-3-60 (cont)

10

Fig. 4 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 575-3-60

11

Fig. 4 — Schematic/Component Arrangement; 48TFE,TFF004,005, 48TFD005; 575-3-60 (cont)

12

Fig. 5 — Schematic/Component Arrangement; Low NOx 48TFL004,005, 48TFM004,005; 48TFN004,005;California Compliant 48TFG,TFH,TFK004,005; 208/230-3-60

13

Fig. 5 — Schematic/Component Arrangement; Low NOx 48TFL004,005, 48TFM004,005; 48TFN004,005;California Compliant 48TFG,TFH,TFK004,005; 208/230-3-60 (cont)

14

Fig. 6 — Schematic/Component Arrangement; Low NOx 48TFL004,005, 48TFM004,005, 48TFN004,005;California Compliant 48TFG,TFH,TFK004,005; 460-3-60

15

Fig. 6 — Schematic/Component Arrangement; Low NOx 48TFL004,005, 48TFM004,005, 48TFN004,005;California Compliant 48TFG,TFH,TFK004,005; 460-3-60 (cont)

16

Fig. 7 — Schematic/Component Arrangement; 48TF006; 208/230-1-60

17

Fig. 7 — Schematic/Component Arrangement; 48TF006; 208/230-1-60 (cont)

18


19


20

Fig. 9 — Schematic/Component Arrangement; 48TF006; 460-3-60

21

Fig. 9 — Schematic/Component Arrangement; 48TF006; 460-3-60 (cont)

22


23


24

Fig. 11 — Schematic/Component Arrangement; Low NOx 48TFL006, 48TFM006, 48TFN006;California Compliant 48TFG,TFH,TFK006; 208/230-3-60

25

Fig. 11 — Schematic/Component Arrangement; Low NOx 48TFL006, 48TFM006, 48TFN006;California Compliant 48TFG,TFH,TFK006; 208/230-3-60 (cont)

26

Fig. 12 — Schematic/Component Arrangement; Low NOx 48TFL006, 48TFM006, 48TFN006;California Compliant 48TFG,TFH,TFK006; 460-3-60

27

Fig. 12 — Schematic/Component Arrangement; Low NOx 48TFL006, 48TFM006, 48TFN006;California Compliant 48TFG,TFH,TFK006; 460-3-60 (cont)

28


29


30


31


32


33


34

Fig. 16 — Schematic/Component Arrangement; 48TF008-014; 208/230-3-60

35

Fig. 16 — Schematic/Component Arrangement; 48TF008-014; 208/230-3-60 (cont)

36

Fig. 17 — Schematic/Component Arrangement; 48TF008-014; 460-3-60

37

Fig. 17 — Schematic/Component Arrangement; 48TF008-014; 460-3-60 (cont)

38

Fig. 18 — Schematic/Component Arrangement; 48TF008-014; 575-3-60

39

Fig. 18 — Schematic/Component Arrangement; 48TF008-014; 575-3-60 (cont)

40

Fig. 19 — Motormaster® I Wiring Details

Fig. 20 — Motormaster II Wiring Schematic, 48TF004-007

48TF008-014

48TF004-007

LEGENDC — Contactor

LEGEND

*The Motormaster II head pressure controlleris equipped with an alternate operatingmode. When this mode is selected, the con-troller shifts the fan cycle sequence to effec-tively raise the average condensingtemperature approximately 20 F higher thanthe standard operating mode. In this alternatemode, the outdoor fan begins cycling athigher outdoor ambient temperatures. Thismode should only be used if the evaporatorcoil shows signs of frosting at low outdoorambient temperatures.To select the alternate operating mode, movethe jumper wire on the Motormaster II controlboard from reset T1 to reset T2.

NOTE: Motormaster II transformer is wired for460-v supply; it must be rewired for 208/230-vapplication. Be sure to insulate unused tap.Refer to color code.

C — ContactorOFC — Outdoor-Fan ContactorTRAN — Transformer

41

LEGEND

*The Motormaster® II head pressure controller is equipped with an alternate operating mode.When this mode is selected, the controller shifts the fan cycle sequence to effectively raise theaverage condensing temperature approximately 20 F higher than the standard operating mode.In this alternate mode, the outdoor fan begins cycling at higher outdoor ambient temperatures.This mode should only be used if the evaporator coil shows signs of frosting at low outdoorambient temperatures.To select the alternate operating mode, move the jumper wire on the Motormaster II controlboard from reset T1 to reset T2.

NOTE: Motormaster II transformer is wired for 460-v supply; it must be rewired for 208/230-vapplication. Be sure to insulate unused tap. Refer to color code.

C — ContactorOFC — Outdoor-Fan ContactorTRAN — Transformer

Fig. 21 — Motormaster II Wiring Schematic, 48TF008-014

42

12 3

BRN

COMPRESSORSAFETIES

BRN

CLO

TIME GUARD I I DEVICE

CORCR

T1 T3 T2

ECONOMIZEROR

Y1 OR Y2*

12 3

BRN

COMPRESSORSAFETIES

BRN

CLO

TIME GUARD I I DEVICE

CORCR

T1 T3 T2

ECONOMIZEROR

Y1 OR Y2*

HIGH EFFICIENCY 3 TO 121/2 TON ROOFTOP UNITS

STANDARD EFFICIENCY 3 TO 121/2 TON ROOFTOP UNITS

LEGEND

*Per compressor circuit.Fig. 22 — Time Guard® II Device, 48TF004-014

C — ContactorCLO — Compressor LockoutCR — Control Relay

620 ohmJUMPER

}24 VAC SUPPLY FROMECONOMIZER CONTROLSECTION (RED TO TR,BRN TO TR1)TO SENSOR MOUNTEDON BACK OF CONTROL

}

GRAY WIRE FROMECONOMIZER HARNESS

RED WIRE FROMECONOMIZER SWITCH 3(NORMALLY CLOSED)

TR TR1

SO +

+SR

2 3

1

LED

AB

CD

NOTE: Switches shown in high enthalpy state. Terminals 2 and 3close on enthalpy decrease.

Fig. 23 — Wiring Connections for Solid-StateEnthalpy Control (HH57AC077)

LED

AB C

D

TR TR1

SO

SR

23

1

+

+ S+

(HH57AC078SENSOR)

24 VAC SUPPLY FROMECONOMIZER CONTROLSECTION (RED TO TR,BRN TO TR1)

TO SENSOR MOUNTEDON BACK OF CONTROL

GRAY WIRE FROMECONOMIZER HARNESS

RED WIRE FROMECONOMIZER SWITCH 3(NORMALLY CLOSED)

NOTES:1. Remove factory-installed jumper across SR and + before con-

necting wires from HH57AC078 sensor.2. Switches shown in high outdoor-air enthalpy state. Terminals 2

and 3 close on low outdoor air enthalpy relative to indoor airenthalpy.

Fig. 24 — Wiring Connections for DifferentialEnthalpy Control (HH57AC077 and HH57AC078)

43

Fig. 25 — EconoMi$er Wiring

OUTDOORAIRSENSOR

TEMPTEMP

COMOUTPWR

BROWN

VIOLET

WHITERED

BROWNTEMPTEMPCOMOUTPWR

RETURNAIRSENSOR

VIOLETWHITE

RED

OAT

COM

OAH

-15 V

RAT

COM

RAH

+15 V

ECONOMI$ERCONTROLLER

PINK TEMP

TEMPVIOLET

SUPPLY AIRTEMPERATURE SENSOR

V+ 24

COM VAC

SENSORCO2

(+)COMDAT

COMREM POT

COMLED

COM

CO2

CO2

Fig. 26 — EconoMi$er Sensor Wiring, 48TF004-014

LEGEND

OAT — Outdoor-Air Thermostat

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 111 Catalog No. 534-80003 Printed in U.S.A. Form 48TF-1W Pg 44 2-01 Replaces: NewBook 1 4

Tab 1a 6a

Copyright 2001 Carrier Corporation

4-PINCONNECTOR

PLUG

L1

L2

GREEN

112 2

3 34 4

GND

230 VAC1 PHASE

GREEN/YELLOW

3

2

1

5 8

6 9 B

A74

LT. BLUE

BLACKBROWN

C1

BLUE

GREEN/YELLOW

3

2

1

5 8

6 9 B

A74

LT. BLUE

BLACKBROWN

C1

BLUE

FAN 2

FAN 1

BLACK

BLACK

BLACK

R124 VAC

R224 VAC

BLACK

BLUE

1

2

3BROWN

ORANGE

3-PINCONNECTOR

PLUG

YELLOW

RED YEL

H1

BLU GRAY

H4

SECONDARY230VAC

X4 X1

HT

01

AH

85

0(4

60

VA

C)

RED

H1

GRAY

H2

SECONDARY230VAC

X4 X1

HT

01

AH

85

9(5

75

VA

C)

2313

11 21230VAC

OR

BLACK L1

BLUE L2

COMPRESSOR 1CONTACTOR

FIELD SUPPLIEDWIRING

GREEN GND

2 x 4 IN.HANDY BOX

X3X2

H2H3

X2 X3

TO FUSEDDISCONNECT

Fig. 27 — Wiring Diagram for Power Exhaust System

wiring diagrams · 2013-12-18 · manufacturer reserves the right to discontinue, or change at any...

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