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Manual 2100-769A

Page

35 of 50

Checking Temperature Sensor Outside

Unit Circuit

1. Disconnect temperature sensor from board and

from outdoor coil.

2. Use an ohmmeter to measure the resistance of the

sensor. Also use ohmmeter to check for short or
open.

3. Check resistance reading to chart of resistance.

Use sensor ambient temperature. (Tolerance of part
is ± 10%.)

4. If sensor resistance reads very low, sensor is

shorted and will not allow proper operation of the
heat pump control.

5. If sensor is out of tolerance, shorted, open or reads

very low ohms, it should be replaced.

TABLE 9

Temperature F vs. Resistance R of Temperature Sensor

-25.0

196871

13.0

56985

53.0

19374

89.0

7507

-24.0

190099

14.0

55284

52.0

18867

90.0

7334

-23.0

183585

15.0

53640

53.0

18375

91.0

7165

-22.0

177318

16.0

52051

54.0

17989

92.0

7000

-21.0

171289

17.0

50514

55.0

17434

93.0

6840

-20.0

165487

18.0

49028

56.0

16984

94.0

6683

-19.0

159904

19.0

47590

57.0

16547

95.0

6531

-18.0

154529

20.0

46200

58.0

16122

96.0

6383

-17.0

149355

21.0

44855

59.0

15710

97.0

6239

-16.0

144374

22.0

43554

60.0

15310

98.0

6098

-15.0

139576

23.0

42295

61.0

14921

99.0

5961

-14.0

134956

24.0

41077

62.0

14544

100.0

5827

-13.0

130506

25.0

39898

63.0

14177

101.0

5697

-12.0

126219

26.0

38757

64.0

13820

102.0

5570

-11.0

122089

27.0

37652

65.0

13474

103.0

5446

-10.0

118108

28.0

36583

66.0

13137

104.0

5326

-9.0

114272

29.0

35548

67.0

12810

105.0

5208

-8.0

110575

30.0

34545

68.0

12492

106.0

5094

-7.0

107010

31.0

33574

69.0

12183

107.0

4982

-6.0

103574

32.0

32634

70.0

11883

108.0

4873

-5.0

100260

33.0

31723

71.0

11591

109.0

4767

-4.0

97064

34.0

30840

72.0

11307

110.0

4663

-3.0

93981

35.0

29986

73.0

11031

111.0

4562

-2.0

91008

36.0

29157

74.0

10762

112.0

4464

-1.0

88139

37.0

28355

75.0

10501

113.0

4367

0.0

85371

38.0

27577

76.0

10247

114.0

4274

1.0

82699

39.0

26823

77.0

10000

115.0

4182

2.0

80121

40.0

26092

78.0

9760

116.0

4093

3.0

77632

41.0

25383

79.0

9526

117.0

4006

4.0

75230

42.0

24696

80.0

9299

118.0

3921

5.0

72910

43.0

24030

81.0

9077

119.0

3838

6.0

70670

44.0

23384

82.0

8862

120.0

3757

7.0

68507

45.0

22758

83.0

8653

121.0

3678

8.0

66418

46.0

22150

84.0

8449

122.0

3601

9.0

64399

47.0

21561

85.0

8250

123.0

3526

10.0

62449

48.0

20989

86.0

8057

124.0

3452

11.0

60565

49.0

20435

87.0

7869

12.0

58745

50.0

19896

88.0

7686

Содержание CH Series

Страница 1: ...mp Models INSTALLATION INSTRUCTIONS C36HY A C36HY B C36HY C C42HY A C42HY B C42HY C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 769A Supersedes 2100 769 Date 6 21 23 C...

Страница 2: ...ation 32 High Pressure Switch Operation 33 Vent Connection Plug 33 Pressure Service Ports 33 Service 34 Solid State Heat Pump Control Troubleshooting Procedure 34 Checking Temperature Sensor Outside U...

Страница 3: ...Temperature vs Resistance 35 Table 10 Fan Blade Dimensions 39 Table 11A Cooling Pressures Full Load 40 Table 11B Cooling Pressures Part Load 41 Table 12A Heating Pressures Full Load 42 Table 12B Heati...

Страница 4: ...ituation which if not avoided will result in death or serious injury The signal word DANGER is to be limited to the most extreme situations DANGER signs should not be used for property damage hazards...

Страница 5: ...to avoid accidental contact with sharp edges Failure to do so can result in personal injury CAUTION The following symbols are displayed on units This symbol indicates that the Operation Manual should...

Страница 6: ...he Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type NFPA No 90A and Residence Type Warm Air Heating a...

Страница 7: ...xtreme damage hazards o involved ed could result in d for property his level is also d could result in lert symbol may be erty damage only ted to personal nal word As an ty alert symbol may mmediate h...

Страница 8: ...ns sont disponibles telles que le manuel d utilisation ou le manuel d installation Risque de choc lectrique Ces t ches doivent tre r alis es par une personne parfaitement qualifi e et form e Le non re...

Страница 9: ...ciation for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type NFPA No 90A et aux Syst mes de chauffage et de climatisation d air chaud de type r sidence NFPA No...

Страница 10: ...ntact these publishers ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave N W Washington DC 20009 Telephone 202 483 9370 Fax 202 234 4721 ANSI American National Standards Institute 11...

Страница 11: ...ergy Recovery Ventilator V Commercial Room Ventilator Modulating Y Full Flow Economizer Temperature Z Full Flow Economizer Enthalpy ELECTRIC HEAT 00 0Kw with Lug Connection 0Z 0Kw with Circuit Breaker...

Страница 12: ...require a return air duct A metallic return air grille is required with installations not requiring a return air duct The spacing between louvers on the grille shall not be larger than 5 8 Any grille...

Страница 13: ...Install Screws and Bend Tabs Up FIGURE 3 Removing Second Filter Upper slots for 1 filters Lower slots for 2 filters 3 Reverse the order for new filter installation NOTE When installing new filters mak...

Страница 14: ...is an adjustable slide on the side of the fresh air intake that can be adjusted to limit how far the damper opens so that the amount of fresh air that enters the structure is regulated Graphs found o...

Страница 15: ...er section of the unit and outdoor ambient temperature air must be able to enter from the front through the condenser grill of the unit Portable or modular building placement must be in a way that the...

Страница 16: ...ications The spacing between louvers on the grille shall not be larger than 5 8 It is recommended that a Bard Return Air Grille Kit is installed that is designed specifically for the wall mount produc...

Страница 17: ...installation but is not required Review all requirements listed on unit labels and on serial plate located on the side of the unit 2 Locate and mark bolt hole locations and bottom mounting bracket loc...

Страница 18: ...2HY C48HY C60HY 20 20 10 TABLE 2 Minimum Clearances Required to Combustible Materials Model Supply Air Duct 1st 3 Cabinet C36HY C42HY C48HY C60HY 1 4 0 FIGURE 12 Vent Installation Removal Clearance Re...

Страница 19: ...Rain Hood Built In Low Voltage Recessed front cover J 1 375 A C I K D H 2 250 3 000 Mounting Side Wall Brackets Built In Location Shipping Flashing Top Rain DO NOT PLACE ELECTRICAL ENTRANCES IN SHADE...

Страница 20: ...and Hole Location View Supply Opening Return Opening UNITS REQUIRED DIMESIONS A B C D E F G C36HY C42HY UNITS REQUIRED DIMESIONS TO MAINTAIN 1 4 MIN CLEARANCE FROM COMBUSTIBLE MATERIALS 30 1 2 10 1 2...

Страница 21: ...l Supply Air Duct Duct Typical Building Wall Frame Note Side section view of supply air duct for wall mounted unit showing 1 4 clearance to combustible surfaces Fire hazard Maintain minimum 1 4 cleara...

Страница 22: ...CLEARANCE STRUCTURAL STEEL ALL AROUND DUCT THIS STRUCTURAL MEMBER LOCATED TO MATCH STUD SPACING FOR REST OF WALL A SECOND MEMBER MAY BE REQUIRED FOR SOME WALLS RETURN DUCT MIS 3982 B See Figure 14 Mo...

Страница 23: ...best unit performance and efficiency Review duct grille or return duct work Avoid using restrictive duct work to Unit Mount Return Grille Fixed Blade Wall wall Outside Wall Ducted Installations Adjus...

Страница 24: ...stallation If field power is supplied to the left side of the unit run the high voltage wires under the shield shown in Figure 19 and to the right of the wire shield next to the compressor contactor a...

Страница 25: ...ventilation option and indoor blower L terminal is 24 volt alarm active output For units equipped with an alarm relay 1 terminal is the normally closed contact on the relay 2 terminal is the normally...

Страница 26: ...Electronic HP or Conventional Auto or Manual Changeover with Humidity and Occupancy Sensor BACnet Thermostat option only permissable for units up to 12KW electric heat 8403 083 2 Stage Cool 2 Stage H...

Страница 27: ...ration add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See install manual 4 Factory installed jumper Remo...

Страница 28: ...ly See vent installation manual 6 For vent operation add jumper if optional CO2 controller is not used Vent will run while blower is energized For ECON CRV V an additional wire change is required See...

Страница 29: ...410A refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to ensure optimal system performance Refer to instructions for the cylinder that is being ut...

Страница 30: ...nser fan motor will have a delayed start until system refrigerant operating pressure builds up After starting the fan motor may or may not cycle depending upon ambient conditions This is normal operat...

Страница 31: ...efrost mode Factory default setting is 60 minutes During the defrost mode the refrigerant cycle switches back to the cooling cycle the outdoor motor stops electric heaters are energized and hot gas pa...

Страница 32: ...cian to override or speed up this timing period and shorting out the SPEEDUP terminals for a few seconds can do this Low Pressure Switch Bypass Operation The control has a selectable SW1 low pressure...

Страница 33: ...plied jumper plug is in place The unit will not operate without anything plugged in This plug is located on the side of the control panel behind the front vent door behind the filter access door If th...

Страница 34: ...rmer is bad or the unit wiring is incorrect 10 Check for Compressor output signal Is there 24 volts AC between CC C Yes go to Step 12 No go to Step 13 11 No Y compressor input signal Check thermostat...

Страница 35: ...6 0 144374 22 0 43554 60 0 15310 98 0 6098 15 0 139576 23 0 42295 61 0 14921 99 0 5961 14 0 134956 24 0 41077 62 0 14544 100 0 5827 13 0 130506 25 0 39898 63 0 14177 101 0 5697 12 0 126219 26 0 38757...

Страница 36: ...ontrol replacement check Perform Moisture Check Motor won t start Motor rocks but won t start Check for loose or compliant motor mount Make sure blower wheel is tight on shaft Perform motor control re...

Страница 37: ...motor plug just removed to the motor shell is 100K ohms see Figure 24 Measure to unpainted motor end plate If any motor lead fails this test do not proceed to install the control module the motor is d...

Страница 38: ...ways Energized Pin 2 X Pin 3 24 VAC C Common Signal Always Energized Pin 4 Not Used Pin 5 Not Used Pin 6 X X X X X Pin 7 Not Used Pin 8 Not Used Pin 9 X X X Pin 10 X X Pin 11 Not Used Pin 12 24 VAC Ho...

Страница 39: ...ndenser coil as thoroughly as needed 5 Reverse steps to re install Important Cleaning Note For improved start up performance wash the indoor coil with dishwasher detergent IMPORTANT Please be aware of...

Страница 40: ...e 147 148 149 151 152 153 154 155 157 158 160 Head Pressure 318 342 367 394 421 449 479 509 541 573 607 C42HY 75 62 Suction Pressure 134 134 134 135 136 137 138 139 140 142 143 Head Pressure 314 333 3...

Страница 41: ...e 152 154 155 156 157 159 160 162 163 165 166 Head Pressure 251 290 311 334 358 382 408 436 464 493 524 C42HY 75 62 Suction Pressure 137 137 137 137 138 139 140 141 143 145 147 Head Pressure 241 279 2...

Страница 42: ...44 50 56 62 69 76 83 90 98 106 115 124 133 Head Pressure 273 285 296 308 319 331 342 353 364 376 387 398 409 420 TABLE 12B Heating Pressures Part Load Air Temperature Entering Outdoor Coil F Model Re...

Страница 43: ...C09 C15 460 60 3 1 1 1 1 17 25 31 31 20 25 35 35 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electrical code latest version Article...

Страница 44: ...or to prevent short circuiting The 10 reduction will only be adjusted when unit is running in cooling mode In heating mode the blower will remain at rated airflow Dirty Filter Switch 1 Disconnect all...

Страница 45: ...ps and the light comes on If the filter is restricted by 75 or desired restriction amount skip to Step 6 4 If switch setting adjustment is required disconnect power to the unit Remove the upper front...

Страница 46: ...8V units only Model Rated ESP Maximum ESP Blower Only Cooling Heating 1st Stage CFM Cooling Heating 2nd Stage CFM Electric Heat C36HY 0 15 0 50 800 800 1100 1100 C42HY 0 15 0 50 800 900 1300 1300 C48H...

Страница 47: ...FAD NE5 Fresh Air Damper No Exhaust X X FAD BE5 Fresh Air Damper Barometric Exhaust X X CRV F5 Commercial Ventilator On Off Spring Return X X CRV V5 Commercial Ventilator 0 10V Spring Return X X ECON...

Страница 48: ...H042A A05 X EHCH042A A10 X EHCH042A B05 X EHCH042A B09 X EHCH042A B15 X EHCH048A A05 X EHCH048A A10 X EHCH048A A15 X EHCH048A B05 X EHCH048A B09 X EHCH048A B15 X EHCH048A C05 X EHCH048A C09 X EHCH048A...

Страница 49: ...Manual 2100 769A Page 49 of 50 GRAPH 1 CH FAD NE5 Without Exhaust Ventilation Delivery GRAPH 2 CH FAD BE5 With Exhaust Ventilation Delivery...

Страница 50: ...Manual 2100 769A Page 50 of 50 GRAPH 3 C36H C42H CRV FS Ventilation Delivery GRAPH 4 CC48H C60H CRV FS Ventilation Delivery...

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