SP-34, SP-34D. Single Stage. Temperature Control. Description. The SP-3x and
SP-3xD series of controls are single stage, general purpose, temperature con-.
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)
