SP-32, SP-32D SP-33, SP-33D SP-34, SP-34D

SP-32, SP-32D SP-33, SP-33D SP-34, SP-34D
SP-32,
SP-33,
SP-34,
SP-32D
SP-33D
SP-34D
Single Stage
Temperature Control
Description
The SP-3x and SP-3xD series of controls are
single stage, general purpose, temperature controls with wide application in HVAC, refrigeration, and industrial applications. The setpoint
temperature ranges are:
SP-32 & SP-32D
-26°F to +90°F
SP-33 & SP-33D
40°F to 104°F
SP-34 & SP-34D
90°F to 200°F
The SP-3xD controls are identical to the SP-3x,
except for one additional relay. The SP-3x
controls provide one isolated SPDT relay output while the SP-3xD provides two (effectively
DPDT). The SP-3xD also provides “R-W”
interrupt spade terminals for Class II interlocks
on the Output 2 relay. The relays on both the
SP-3x and SP-3xD are controlled by comparing
the thermistor temperature sensor to a setpoint
temperature. The installer to can select either
“heat” mode (relay operates on temperature
fall) or “cool” mode (relay operates on temperature rise). The control setpoint can be set
using the internal setpoint dial (factory setting)
or you can wire a remote setpoint (see Goldline
RSP series of remote setpoints) or you can wire
a fixed setpoint (see Goldline ESP series of fixed
setpoints) which provides high accuracy and
prevents unauthorized tampering with the setting. The SP-3xD series controls also feature a
plug in connector for a TD-SP Digital Display
Monitor which displays sensor and setpoint
temperatures.
Power can be provided from a 24VAC, 24VDC,
115VAC or 240VAC power source. Relay
contacts are completely isolated so the outputs
can switch any voltage, regardless of the power
source. On SP-3xD models, one relay output
can switch high voltage, the other switch low
voltage. A movable divider is provided to
separate high and low voltage wiring compartments.
Specifications
Power:
Approx. 2VA required from any
power source:
21-27VAC, 50/60Hz
21-27VDC
105-130VAC, 50/60Hz
195-250VAC, 50/60Hz
Outputs:SPDT isolated (dry)contacts,
1HP@115VAC, 2HP@240VAC
rating @ 240VAC:
20A on NO contacts
10A on NC contacts
Sensors: Thermistor, 10K @ 25°C/77°F
Type SW supplied with control
Interchangeable with any IE
temperature sensor
1000 ft. maximum wire run
Setpoint:
to +90°F
40 to 104°F
34, SP-34D
SP-32, SP-32D
-26
SP-33, SP-33D
SP90 to 200°F
Differential: SP-32, SP-32D
1 25°F
SP-33, SP-33D
1-15°F
SP34, SP-34D
1-25°F
Accuracy:
+/- 1°F
Environment: -30 to +130°F
0-95% rH, non-condensing
Installation
1.
Mounting
The SP-3x and SP-3xD series controls are
designed for mounting indoors, protected from
the weather and with non-condensing humidity.
For outdoor use or in moist environments use a
Goldine RE-1 raintight enclosure. Use the
mounting screws supplied or optional mounting
bracket (consult IE factory).
2.
Page 2
Sensor Mounting and Wiring
To maximize temperature measurement accuracy securely mount the sensor and then insulate
it to protect it from the effects of ambient
temperature. 18 AWG twisted pair wire should
be used for normal indoor runs. Sensor wiring run
outdoors must be rated for outdoor use and
ensure that wire connections are protected from
the weather. For long runs or runs near other
electrical wiring use shielded cable (Belden 8760
for indoor use or Belden 8428 for outdoor use).
Ground the shields to one of the control's cover
screws. If the SW sensor supplied with the
control does not meet your needs, contact your
distributor for information on the wide range of
interchangeable Goldline temperature sensors.
3.
Power input
The SP-3x and SP-3xD controls require power
to operate. You may connect either 24VAC to
the “R” and “C” terminals; 24VDC to the “R”
(+) and “C” (-); 115VAC to the terminals
marked “115VAC” or 208/240VAC to the
terminals marked “240VAC”. Connect grounds
Installation
(Continued)
Page 3
to the green screw provided or use grounding
clips (eg Steel City “Gee clips” or Raco #975).
Refer to wiring diagram on page 2.
nals) is cut. Shorting across "R" and "W" will
again enable the output 2 relay. This feature
allows for a switch (manual, temperature, etc.)
to be wired across "R" and "W" to provide
additional control of the output 2 relay (see
diagram on page 6). A common application of
this feature is a high or low limit override for the
second relay. For normal operation, when this
type of control is not needed, the wire jumper
should remain untouched.
4.
Output wiring
SP-3x: The SP-3x provides one set of isolated
SPDT relay outputs. If you are directly controlling a load (eg pump, blower, valve, etc), you
must connect a source of power through this
output relay. “NO” are normally open contacts
which close when the control output is on. “NC”
are normally closed contacts which open when
the control output is on. Refer to the sample
diagrams shown below.
SP-3xD: The SP-3xD provides two sets of
isolated SPDT relay outputs. If you are directly
controlling a load (eg pump, blower, valve, etc),
you must connect a source of power through
these output relays. “NO” are normally open
contacts which close when the control output is
on. “NC” are normally closed contacts which
open when the control output is on. Refer to the
sample diagrams shown on the following page.
The output 2 relay on the SP-3xD control will
be disabled when the insulated wire jumper
(located next to the "R" and "W" spade termi-
5.
Setpoint
Controls are shipped from the factory set up to
use the internal setpoint adjustment knob. If
you would like to use a remote setpoint or a fixed
setpoint, the internal setpoint adjustment can
be disabled . To accomplish this, remove the
jumper from terminals "1" and "2" and connect
an RSP (potentiometer) or an ESP (fixed resistor) to terminals "2" and "3". RSP's and ESP's
are available through your Goldline dealer. Setback can also be accomplished with the use of
any SPDT timer. Refer to diagram on page 5.
6.
Adjustments
Set the mode jumper into the “heat” or “cool”
position. Adjust the setpoint and differential to
the desired settings.
Operation
Page 4
The test switch should normally be left in the
“AUTO” position in which case operation is
completely automatic with no operator intervention required. The “Power” indicator should
always be on. The “Output” indicator will show
the status of the control output relays. When
the switch is in the “ON” position, the output
is forced on (both relays energized) and when in
the “OFF” position, the output is forced off
(both relays de-energized). The only exception
to this is if the "R" and "W" feature is enabled.
If so, the output 2 relay will be de-energized
whenever continuity is broken across "R" and
"W".
In “cool” mode the control output will turn on
when the sensor temperature rises to the setpoint
SP-3xD
SP-3xD
SP-3xD
Operation (continued)
temperature plus the differential. In “heat”
mode the control output will turn on when the
temperature falls to the setpoint temperature
Page 5
minus the differential. The control output
always turns off at the setpoint.
Page 6
Technical Assistance
For help in installing, operating, or troubleshooting this control, you may call for technical
assistance at 800-343-0826. Independent
Energy’s technicians are available from 8:00AM
to 5:00PM Eastern Time, Monday through
Friday. You may call at other times and leave
a message, and a technician will call you back as
soon as possible.
Temperature vs. Resistance Chart
All Goldline controls use 10K thermistor sensors. When disconnected from the control, the
sensor will read 10 K ohms at 25°C/77°F. Refer
to the chart below for the resistance at other
°F
-50
-49
-48
-47
-46
-45
-44
-43
-42
-41
-40
-39
-38
-37
-36
-35
-34
-33
-32
-31
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
OHM
491,14
472,64
454,90
437,90
421,60
405,96
390,96
376,57
362,77
349,52
336,80
324,59
312,87
301,62
290,81
280,43
270,46
260,87
251,67
242,82
234,31
226,13
218,27
210,71
203,44
196,45
189,72
183,24
177,01
171,02
165,25
159,69
154,34
149,19
144,23
139,45
134,85
130,42
126,14
122,03
118,06
114,23
110,54
106,99
103,56
100,25
97,063
93,986
91,017
88,152
°F
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
OHM
85,387
82,719
80,142
77,656
75,255
72,937
70,698
68,535
66,447
64,428
62,479
60,595
58,774
57,014
55,313
53,669
52,078
50,541
49,054
47,616
46,225
44,879
43,577
42,318
41,099
39,919
38,777
37,671
36,601
35,565
34,561
33,590
32,648
31,737
30,853
29,998
29,169
28,365
27,587
26,832
26,100
25,391
24,704
24,037
23,391
22,764
22,156
21,566
20,993
20,438
INDEPENDENT ENERGY INC.
°F
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
OHM
19,900
19,377
18,870
18,377
17,899
17,435
16,985
16,548
16,123
15,711
15,310
14,921
14,543
14,176
13,820
13,473
13,136
12,809
12,491
12,182
11,882
11,589
11,305
11,029
10,761
10,500
10,246
9,999
9,758
9,525
9,297
9,076
8,861
8,651
8,447
8,249
8,056
7,867
7,684
7,506
7,333
7,164
6,999
6,839
6,683
6,530
6,382
6,238
6,097
5,960
°F
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
temperatures. For a given temperature, the
resistance is accurate to +/- 1%. For a given
resistance the temperature is accurate to +/0.5°F.
OHM
5,827
5,697
5,570
5,446
5,326
5,208
5,094
4,982
4,873
4,767
4,664
4,563
4,464
4,368
4,274
4,183
4,094
4,007
3,922
3,839
3,758
3,679
3,602
3,527
3,454
3,382
3,312
3,244
3,177
3,112
3,049
2,987
2,926
2,867
2,809
2,752
2,697
2,643
2,591
2,539
2,489
2,440
2,392
2,345
2,299
2,254
2,210
2,167
2,125
2,084
°F
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
OHM
2,044
2,005
1,966
1,929
1,892
1,856
1,821
1,787
1,753
1,720
1,688
1,657
1,626
1,596
1,567
1,538
1509
1,482
1,455
1,428
1,402
1,377
1,352
1,328
1,304
1,281
1,258
1,235
1,213
1,192
1,171
1,150
1,130
1,110
1,091
1,072
1,054
1,035
1,017
1,000
983
966
950
933
918
902
887
872
857
843
°F
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
OHM
829
815
802
788
775
763
750
738
726
714
702
691
680
669
658
648
637
627
617
607
598
588
579
570
561
553
544
536
527
519
511
503
496
488
481
473
466
459
452
445
439
432
426
420
413
407
401
395
390
384
°F
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
OHM
378
373
367
362
357
352
347
342
337
332
327
323
318
314
309
305
301
296
292
288
284
280
276
273
269
265
262
258
255
251
248
244
241
238
235
232
229
225
223
220
217
214
211
208
206
203
200
198
195
193
190
42 Ladd Street, East Greenwich, RI 02818
(401) 884-6990 (800) 343-0826 (401) 885-1500 fax
P/N 116212(G)
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