Bard C36H1-A Installation Instructions Manual Download Page 19

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Manual 2100-586G

Page

19 of 25

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 4

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

Summary of Contents for C36H1-A

Page 1: ...Models INSTALLATION INSTRUCTIONS C36H1 A C36H1 B C36H1 C C42H1 A C42H1 B C42H1 C C48H1 A C48H1 B C48H1 C C60H1 A C60H1 B C60H1 C Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual...

Page 2: ...e Sensor Outside Unit Circuit 19 Fan Blade Setting Dimensions 20 Removal of Fan Shroud 20 R 410A Refrigerant Charge 20 Troubleshooting ECM Indoor Blower Motors 24 FIGURES Figure 1 Fresh Air Damper Ass...

Page 3: ...OPTIONS X Beige 1 White 4 Buckeye Gray 5 Desert Brown 8 Dark Bronze S Stainless Steel CAPACITY 36 3 Ton 42 3 Ton 48 4 Ton 60 5 Ton VENTILATION OPTIONS B Blank off Plate V Commercial Ventilator Mod Sp...

Page 4: ...led in accordance with the 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...

Page 5: ...ersonal injury The safety alert symbol shall not be used with this signal word As an alternative to NOTICE the word CAUTION without the safety alert symbol may be used to indicate a message not relate...

Page 6: ...s used Contact distributor or factory for ordering information If using a return air filter grille filters must be of sufficient size to allow a maximum velocity of 400 fpm NOTE If no return air duct...

Page 7: ...tible wall Placement 1 On side by side installations maintain a minimum of 20 clearance on right side to allow access to control panel and heat strips and to allow proper airflow to the outdoor coil A...

Page 8: ...ket optional use for direct mount not used when unit installed with curb C H RIGHT UNIT FIGURE 2 All dimensions are in inches Dimensional drawings are not to scale Dimensions of Basic Unit for Archite...

Page 9: ...LY AIR IT IS RECOMMENDED THAT A BEAD OF OPENING Right Side View RAIN FLASHING SILICONE CAULKING BE PLACED BEHIND RECOMMENDED 1 CLEARANCE FROM THE SIDE MOUNTING FLANGES AND UNDER TOP FLASHING AT TIME O...

Page 10: ...PPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1 4 INCH CLEARANCE TO COMBUSTIBLE SURFACES Fire hazard Maintain minimum 1 4 clearance between the supply air duct and combustible materials in the first 3 o...

Page 11: ...IR FACTORY SUPPLIED RAIN FLASHING SUPPLY AIR MIS 548 A SIDE VIEW I A C K E 1 000 B 1 000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MATERIAL EXTERIOR FINISH WALL OPENING FOR...

Page 12: ...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...

Page 13: ...anel straight out This tab will now line up with the slot in the door When shut a padlock may be placed through the hole in the tab preventing entry See Start Up section for important information on t...

Page 14: ...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 utilized for proper method...

Page 15: ...leaning of the outdoor coil to permit full and unrestricted airflow circulation is essential Sequence of Operation Cooling Stage 1 Circuit R Y makes at thermostat pulling in compressor contactor start...

Page 16: ...wise the timing will remain accelerated and run through the 1 minute minimum defrost length sequence in a matter of seconds and will automatically terminate the defrost sequence There is an initiate d...

Page 17: ...25 120 SW 1 SW 2 TIME SEC OFF OFF ON ON OFF ON OFF ON 30 60 180 MIS 2668 A OFF LOW PRESSURE BYPASS TIMER SWITCH FACTORY SETTING 120 SECONDS ACCUMULATED DEFROST TIME TIMER FACTORY SETTING 60 MIN ON FIG...

Page 18: ...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...

Page 19: ...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...

Page 20: ...ty The following pressure tables show nominal pressures for the units Since many installation specific situations can affect the pressure readings this information should only be used by certified tec...

Page 21: ...WB LOW SIDE HIGH SIDE 147 321 147 341 147 362 148 387 150 415 151 444 153 476 156 510 158 548 161 587 C48H 75 DB 62 WB LOW SIDE HIGH SIDE 137 315 137 336 138 360 139 385 141 412 142 442 143 473 145 50...

Page 22: ...3 8 45 52 50 60 8 6 10 10 A20 1 or 3 113 125 2 6 45 52 52 50 60 52 8 6 6 10 10 10 C60H1 B0Z 230 208 60 3 1 32 45 8 10 B06 1 50 60 8 10 B09 1 59 60 6 10 B15 1 59 60 6 10 B18 2 N A N A N A N A 59 28 60...

Page 23: ...variable speed ECM indoor motor that automatically adjusts itself to maintain approximately the same rate of indoor airflow in both heating cooling dry and wet coil conditions and at both 230 208 or 4...

Page 24: ...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...

Page 25: ...motor plug just removed to the motor shell is 100K ohms see Figure 11 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...

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