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Carrier 50ZHA024-060, Инструкция по установке и обслуживанию

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Carrier 50ZHA024-060 Скачать руководство пользователя страница 12

Fig. 11C—Accessory Electric Heater Wiring

A05209

Table 6—Electrical Data—50ZHA

UNIT SIZE

50ZHA

V-PH-HZ

VOLTAGE

RANGE

COMPRESSOR

OFM

FLA

IFM

FLA

ELECTRIC HEAT

SINGLE POINT POWER SUPPLY

MIN

MAX

RLA

LRA

Nominal KW*

FLA

MCA

FUSE OR

CKT BKR

MOCP

024

208/230–1–60

187

253

10.9

54.0

0.9

4.1

—/—

3.8/5.0

7.5/10.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
26.0/30.0

18.6/18.6
41.2/44.7
63.8/70.7
51.1/56.1

25/25
45/50

—

50/50

—
—

60/70

—

030

208/230–1–60

187

253

13.5

72.5

0.9

4.1

—/—

3.8/5.0

7.5/10.0

11.3/15.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
54.2/62.5
26.0/30.0

21.8/21.8
44.4/47.9
57.0/73.9

89.5/100.0

54.3/59.3

30/30
50/50

—
—

60/60

—
—

70/70

90/100

—

036

208/230–1–60

187

253

17.5

88.0

1.5

6.0

—/—

3.8/5.0

7.5/10.0

11.3/15.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
54.2/62.5
26.0/30.0

29.4/29.4
52.0/55.4
74.5/81.5

97.1/107.5

61.9/66.9

35/35
60/60

—
—
—

—
—

80/80

100/100

70/70

042

208/230–1–60

187

253

19.4

104.0

1.5

6.0

—/—

3.8/5.0

7.5/10.0

11.3/15.0
15.0/20.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
54.2/62.5
72.2/83.3
26.0/30.0

31.7/31.7
54.3/57.8
76.9/83.8

99.4/109.9

122.0/135.9

63.2/69.2

40/40

—
—
—
—
—

—

60/70
80/90

100/110
110/150

70/80

048

208/230–1–60

187

253

24.7

116.0

1.5

7.7

—/—

3.8/5.0

7.5/10.0

11.3/15.0
15.0/20.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
54.2/62.5
72.2/83.3
26.0/30.0

40.0/40.0
62.6/66.1
85.1/92.1

107.7/118.1
130.3/144.2

72.5/77.5

50/50

—
—
—
—
—

—

80/80

100/100
110/125
125/125

90/90

060

208/230–1–60

187

253

28.0

118.0

3.0

7.7

—

3.8/5.0

7.5/10.0

11.3/15.0
15.0/20.0

5.4/7.2

—/—

18.1/20.8
36.1/41.7
54.2/62.5
72.2/83.3
26.0/30.0

45.7/45.7
68.2/71.7
90.8/97.8

113.4/123.8
135.9/149.9

78.2/83.2

60/60

—
—
—
—
—

—

90/90

100/110
125/125
125/150

90/100

FLA

Full Load Amps

LRA

Locked Rotor Amps

MCA

Minimum Circuit Amps

MOCP

Maximum Overcurrent Protection

RLA

Rated Load Amps

NOTES:
1.

In compliance with NEC (National Electrical Code) requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent
protective device for the unit shall be Power Supply fuse. The CGA (Canadian Gas Association) units may be fuse or circuit breaker.

2.

Minimum wire size is based on 60 C copper wire. If other than 60 C wire is used, or if length exceeds wire length in table, determine size from NEC.

12

Содержание 50ZHA024-060

Страница 1: ...AN 14 DEFROST 14 ELECTRIC RESISTANCE HEATING 14 MAINTENANCE 15 Air Filter 15 Unit Top Removal Outdoor Coil Side 15 Indoor Blower and Motor 15 Outdoor Coil Indoor Coil and Condensate Drain Pan 16 Outdoor Fan 16 Electrical Controls and Wiring 16 Refrigerant Circuit 17 Indoor Airflow 17 Metering Devices 17 Lubrication 17 Liquid Line Strainer 17 High Flow Valves 17 TROUBLESHOOTING 17 START UP CHECKLIS...

Страница 2: ...n beyond the unit casing on the 2 sides The duct connection side and condensate drain connection sides should be flush with the edge of the flat surface A 6 in wide gravel apron should be used around the flat surface to prevent airflow blockage by grass or shrubs Do not secure the unit to the flat surface except where required by local codes The unit should be level to within 1 4 inch This is nece...

Страница 3: ...Fig 2 Unit Base Dimensions 50ZHA024 060 A05201 3 ...

Страница 4: ...in power to unit and install lockout tag Turn off accessory heater power switch if applicable Units are dedicated side supply products They are not convertible to vertical air supply A field supplied plenum must be used to convert to vertical air discharge Step 6 Provide for Condensate Disposal NOTE Be sure that condensate water disposal methods comply with local codes restrictions and practices U...

Страница 5: ...er company for correction of improper voltage HIGH VOLTAGE CONNECTIONS The unit must have a separate electrical service with a field supplied waterproof disconnect switch mounted at or within sight from the unit Refer to the unit rating plate for maximum fuse circuit breaker size and minimum circuit amps ampacity for wire sizing See Table 6 for electrical data The field supplied disconnect may be ...

Страница 6: ...hen checking or servicing refrigerant system 2 Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured 3 Do not remove compressor terminal cover until all electri cal sources are disconnected and lockout tag is installed 4 Relieve all pressure from both high and low pressure sides of the system before touching or disturbing anything ...

Страница 7: ...d Line Temperature REQUIRED LIQUID LINE TEMPERATURE FOR A SPECIFIC SUBCOOLING R 22 Pressure psig Required Subcooling F Pressure kPa Required Subcooling C 5 10 15 20 3 6 8 11 134 71 66 61 56 924 24 22 19 16 141 74 69 64 59 972 26 23 21 18 156 80 75 70 65 1075 30 27 24 21 163 83 78 73 68 1124 31 28 26 23 170 86 81 76 71 1172 33 30 27 24 177 89 84 79 74 1220 34 31 29 26 184 91 86 81 76 1268 36 33 30 ...

Страница 8: ...ressor outdoor fan and indoor blower motors start and that reversing valve shifts Observe that cooling cycle shuts down when control setting is satisfied Reversing valve RV remains energized 3 Place system switch in HEAT position Observe that compres sor indoor fan and outdoor fan energize Reversing Valve is deenergized in heat pump heating mode Set control above room temperature Observe that heat...

Страница 9: ...ubcooling 8 Add charge if the measured temperature is higher than the liquid line temperature value in the table 9 Add charge using the service connection on the suction line of the compressor HEATING MODE CHARGE Do not attempt to adjust charge by cooling methods while in heat pump heating mode Recover refrigerant and weigh in according to unit data plate refrigerant data Step 4 Indoor Airflow and...

Страница 10: ...Fig 11A Typical Unit Electrical Diagram Sizes 024 042 A05199 10 ...

Страница 11: ...A05200 Fig 11B Typical Unit Electrical Diagram Sizes 048 060 11 ...

Страница 12: ...7 54 3 57 8 76 9 83 8 99 4 109 9 122 0 135 9 63 2 69 2 40 40 60 70 80 90 100 110 110 150 70 80 048 208 230 1 60 187 253 24 7 116 0 1 5 7 7 3 8 5 0 7 5 10 0 11 3 15 0 15 0 20 0 5 4 7 2 18 1 20 8 36 1 41 7 54 2 62 5 72 2 83 3 26 0 30 0 40 0 40 0 62 6 66 1 85 1 92 1 107 7 118 1 130 3 144 2 72 5 77 5 50 50 80 80 100 100 110 125 125 125 90 90 060 208 230 1 60 187 253 28 0 118 0 3 0 7 7 3 8 5 0 7 5 10 0...

Страница 13: ...gized NOTE Some units are equipped with a time delay relay On these units the indoor fan remains on for 30 seconds after G or Y is deenergized Table 7 Dry Coil Air Delivery Horizontal Discharge Deduct 10 percent for 208 Volt Operation 50ZHA SPEED TAP WATTS C F M EXTERNAL STATIC PRESSURE 0 1 0 2 03 0 4 0 5 0 6 0 7 0 8 0 9 1 0 024 1 Watts 99 100 118 130 142 C F M 848 793 757 698 632 2 Watts 222 233 ...

Страница 14: ... compressor and switching the indoor fan into high stage The auxiliary or backup heat is controlled by a third stage W2 If the demand is not met W3 is energized in case of staged heating When heating demand is satisfied W3 W2 and Y2 sequentially de energize switching the compressor and the indoor fan into low stage heating When the low stage heating demand is met Y1 de energizes shutting the compr...

Страница 15: ...tdoor Coil Side NOTE When performing maintenance or service procedures that require removal of the unit top be sure to perform all of the routine maintenance procedures that require top removal including coil inspection and cleaning and condensate drain pan inspection and cleaning ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Disconnect and tag ele...

Страница 16: ...r similar probe device Ensure that the auxiliary drain port above the drain tube is also clear Step 5 Outdoor Fan UNIT OPERATIONAL HAZARD Failure to follow this caution may result in damage to unit components Keep the Outdoor fan free from all obstructions to ensure proper cooling operation Never place articles on top of the unit 1 Shut off unit power supply and install lockout tag 2 Remove outdoo...

Страница 17: ...is clean When necessary refer to Indoor Airflow and Airflow Adjustments section to check the system airflow Step 9 Metering Devices Refrigerant cooling metering device is an Accurator 024 042 or TXV 048 and 060 located upstream of the indoor coil distributor assembly Refrigerant heating mode metering device is an Accu rater located upstrem of the outdoor coil distributor assembly Step 10 Lubricati...

Страница 18: ...erant then flows through the 4 way valve accumulator and back to the compressor Fig 15 Typical Heat Pump Operation Cooling Mode C95044 STRAINER ACCUMULATOR COMPRESSOR STRAINER LCS OUTDOOR COIL INDOOR COIL A B D C Check Valves A Closed B Open C Closed D Open LEGEND LCS Loss of Charge Switch Acutrol Metering Device Check Valve Arrow indicates direction of flow COOLING CYCLE 1 Hot gas from compressor...

Страница 19: ...tes continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Replace compressor Frosted outdoor coil with incorrect defrost operation heating Check defrost time settings Reset as necessary Check defrost temperature switch Repla...

Страница 20: ...r Temperature __________ DB ____________WB Return Air Temperature __________ DB __________ WB Cooling Supply Air __________DB___________WB PRESSURES Cooling Mode Refrigerant Suction __________ psig Suction Line Temp ___________ Refrigerant Discharge __________ psig Discharge Temp __________ TEMPERATURE Heating Mode Outdoor Air Temperature __________ DB ____________WB Return Air Temperature _______...

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