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Manual 2100-410
Page 21

3. Check resistance reading to chart of resistance use

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

4. If sensor resistance reads very low, then 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 then it should be replaced.

F

R

F

R

F

R

-25.0
-24.0
-23.0
-22.0
-21.0
-20.0
-19.0
-18.0
-17.0
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0

-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
-2.0
-1.0

0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0

10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0

196871
190099
183585
177318
171289
165487
159904
154529
149355
144374
139576
134956
130506
126219
122089
118108
114272
110575
107010
103574
100260

97064
93981
91008
88139
85371
82699
80121
77632
75230
72910
70670
68507
66418
64399
62449
60565
58745
56985
55284
53640
52051
50514
49028
47590
46200
44855
43554
42295
41077

25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
33.0
34.0
35.0
36.0
37.0
38.0
39.0
40.0
41.0
42.0
43.0
44.0
45.0
46.0
47.0
48.0
49.0
50.0
51.0
52.0
53.0
54.0
55.0
56.0
57.0
58.0
59.0
60.0
61.0
62.0
63.0
64.0
65.0
66.0
67.0
68.0
69.0
70.0
71.0
72.0
73.0
74.0

39898
38757
37652
36583
35548
34545
33574
32634
31723
30840
29986
29157
28355
27577
26823
26092
25383
24696
24030
23384
22758
22150
21561
20989
20435
19896
19374
18867
18375
17898
17434
16984
16547
16122
15710
15310
14921
14544
14177
13820
13474
13137
12810
12492
12183
11883
11591
11307
11031
10762

75.0
76.0
77.0
78.0
79.0
80.0
81.0
82.0
83.0
84.0
85.0
86.0
87.0
88.0
89.0
90.0
91.0
92.0
93.0
94.0
95.0
96.0
97.0
98.0
99.0

100.0
101.0
102.0
103.0
104.0
105.0
106.0
107.0
108.0
109.0
110.0
111.0
112.0
113.0
114.0
115.0
116.0
117.0
118.0
119.0
120.0
121.0
122.0
123.0
124.0

10501
10247
10000

9760
9526
9299
9077
8862
8653
8449
8250
8057
7869
7686
7507
7334
7165
7000
6840
6683
6531
6383
6239
6098
5961
5827
5697
5570
5446
5326
5208
5094
4982
4873
4767
4663
4562
4464
4367
4274
4182
4093
4006
3921
3838
3757
3678
3601
3526
3452

TEMPERATURE F VS RESISTANCE R OF TEMPERATURE

CHECKING TEMPERATURE SENSOR OUTSIDE
UNIT CIRCUIT

1. Disconnect temperature sensor from board and from

outdoor coil.

2. Use an ohmmeter and measure the resistance of the

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

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Summary of Contents for SH431

Page 1: ...LL MOUNTED PACKAGE HEAT PUMPS Models SH381 SH431 SH491 Manual 2100 410B Supersedes 2100 410A File Volume III Tab 17 Date 02 24 04 Bard Manufacturing Company Bryan Ohio 43506 Since 1914 Moving ahead ju...

Page 2: ...n Blade Setting Dimensions 22 Removal of Fan Shroud 22 Refrigerant Charge 22 Pressure Tables 24 Figures Figure 1 Unit Dimensions 3 Figure 2 Fresh Air Damper Assembly 6 Figure 3 Mounting Instructions 8...

Page 3: ...and Summer Air Conditioning Duct Design for Residential ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection For more information contact these publishers ACCA Air Conditioning Co...

Page 4: ...entilator w Built in Exhaust FILTER OPTIONS X 1 Inch Throwaway Standard W 1 Inch Washable P 2 Inch Pleated COLOR OPTIONS X Beige Standard 4 Buckeye Gray COIL OPTIONS X Standard 1 Phenolic Coated Evapo...

Page 5: ...u S n r u t e R W D H A B C B E F G I J K L M N O P Q R S T 1 8 3 H S 1 3 4 H S 1 9 4 H S 5 7 0 2 4 2 3 4 2 2 5 7 8 4 8 8 8 9 8 8 9 2 8 8 5 1 8 8 9 2 8 8 3 4 0 1 9 1 6 6 1 3 0 0 0 3 8 6 2 3 4 9 6 2 9...

Page 6: ...r i W 2 d n u o r G e z i S e r i W T K C A T K C B T K C A T K C B T K C A T K C B T K C A T K C B Z 0 A 0 0 A 1 8 3 H S 5 0 A 8 0 A 0 1 A 1 8 0 2 0 3 2 1 2 r o 1 2 r o 1 2 r o 1 1 3 7 5 3 7 3 8 5 4...

Page 7: ...A 1 inch throwaway filter is supplied with each unit The filter slides into position making it easy to service This filter can be serviced from the outside by removing the service door A 1 inch washa...

Page 8: ...tion as required for Department of Energy Energyguide Fact Sheets is based upon the fresh air Blank off plate in place and is recommended for maximum energy efficiency The blank off plate is available...

Page 9: ...ch clearance is used for ease of installation and maintaining the required clearance to combustible material The supply air opening would then be 32 x 12 See Figures 3 and 4 for details WARNING Failur...

Page 10: ...time of installation MIS 1445 A Top flashing detail view Attach supplied rain flashing Apply caulk between flashing and wall Foam air seal Seal with bead of caulking along entire length of top Supply...

Page 11: ...ired for the first 3 feet of ducting It is important to insure that the 1 4 inch minimum spacing is maintained at all points Failure to do this could result in overheating the combustible material and...

Page 12: ...ORY SUPPLIED RAIN FLASHING MOUNT ON UNIT BEFORE INSTALLATION SEE UNIT DIMENSIONS FIGURE 1 FOR ACTUAL DIMENSIONS ATTACH TO TOP PLATE OF WALL 1 000 CLEARANCE ALL AROUND INTERIOR FINISHED WALL OVER FRAME...

Page 13: ...Manual 2100 410 Page 11 FIGURE 7 COMMONWALLMOUNTINGINSTALLATIONS FREE AIR FLOW NO DUCT DUCTED SUPPLY RETURN AT UNIT FALSE WALL INSTALLATION MIS 550 CLOSETINSTALLATION...

Page 14: ...ary high starting current of the compressor motor The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect To convert for the locking capability bend the...

Page 15: ...mechanical heating compressor off line and send the compressor signal to energize electric heat in its place to make electric heat first stage heating This can also be applied to bank the quantity of...

Page 16: ...This is done to maximize efficiency by utilizing the heat pump to bring the conditioned space temperature up rather than cycling on the electric heat due a second stage call for heat from the thermost...

Page 17: ...on indicating a problem COMPRESSOR MALFUNCTION LIGHT Actuation of the green check lamp is accomplished by a relay output from the heat pump control board which is factory installed Any condition such...

Page 18: ...le j k TABLE 4 WALLTHERMOSTATANDSUBBASECOMBINATIONS t a t s o m r e h T e s a b b u S s e r u t a e F t n a n i m o d e r P 5 4 0 3 0 4 8 1 6 7 1 A 1 4 8 T b l u b y r u c r e M t a e h g t s 2 l o o...

Page 19: ...ired If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor However reverse operation for over one hour may have a negative impact on the b...

Page 20: ...CE OF OPERATION COOLING Circuit R Y makes at thermostat pulling in compressor contactor starting the compressor and outdoor motor The G indoor motor circuit is automatically completed on any call for...

Page 21: ...or other metallic object or another 1 4 inch QC to short between the SPEEDUP terminals to accelerate the HPC timer and initiate defrost Be careful not to touch any other terminals with the instrument...

Page 22: ...e c a l p e R t o n g n i s a h p r e w o P t c e r r o c e s a h p n o D E L d e r r o f k c e h C y l n o s t i n u e s a h p 3 r o t i n o m t i n u e h t o t s d a e l r e w o p o w t h c t i w S...

Page 23: ...48 0 49 0 50 0 51 0 52 0 53 0 54 0 55 0 56 0 57 0 58 0 59 0 60 0 61 0 62 0 63 0 64 0 65 0 66 0 67 0 68 0 69 0 70 0 71 0 72 0 73 0 74 0 39898 38757 37652 36583 35548 34545 33574 32634 31723 30840 29986...

Page 24: ...4 6 TABLE 8 RECOMMENDEDOPERATINGRANGES Rated CFM and ESP on high speed tap l e d o M d e t a R M F C d e t a R P S E d e d n e m m o c e R e g n a R w o l f r i A 1 8 3 H S 0 0 1 1 5 1 0 5 8 0 5 2 1 1...

Page 25: ...I 2 O 1 8 3 H S 1 9 4 H S 1 3 4 H S d e e p S h g i H d e e p S m u i d e M d e e p S w o L d e e p S h g i H d e e p S m u i d e M y r D l i o C t e W l i o C y r D l i o C t e W l i o C y r D l i o...

Page 26: ...ABLE COOLING Air Temperature Entering Outdoor Coil F l e d o M r i A n r u t e R e r u t a r e p m e T e r u s s e r P 5 7 0 8 5 8 0 9 5 9 0 0 1 5 0 1 0 1 1 5 1 1 1 8 3 H S B D g e d 5 7 B W g e d 2 6...

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