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HONEYWELL 51304501-100 Redundancy Driver Module
TIME PROPORTIONING
Time proportioning control provides more effective two-position control than heat anticipation control and is available with some electromechanical thermostats and in electronic and microprocessor-based controllers. Heat is introduced into the space using on/off cycles based on the actual heat load on the building and programmable time cycle settings. This method reduces large temperature swings caused by a large total lag and achieves a more even flow of heat.
Advantage products
Allen Bradley | Bently Nevada | ABB | ICS Triplex | GE |
1756-IM16I | 3500/32 | CI810B | T8312 | IC693PWR321Y |
1756-OW16I | 3500/42M | CI854AK01 | T3481 | IC693CHS397L |
1749-IE12 | 3500/20 | IMMFP12 | T3511 | IC697ALG230F |
1794-OE12 | 3500/50 | IMDSM04 | T3310 | IC697MDL653 |
1747-L531 | 3500/15 | IMFCS01 | T3401 | IC200ALG322D |
1756-DNB | 3500/25 | NTAI06 | T3420A | IC200ALG320B |
1756-OF8 | 3500/92 | NTCL01 | T3401 | IC200ALG260A |
1746-NI16I | 128229-01 | INNIS21 | T3481 | IC200MDD843E |
1746-IB16 | 125720-01 | BRC300 | T3310 | D20EME 526-2100 |
1746-IB32 | 125760-01 | SCAAE35510 | T8225 | IS215WEPAH2BB |
1746-OW16 | 133442-01 | IMASI23 | T8151B | IS210BPPCH1AD |
1747-L532 | 125840-01 | TPS02 | T9432 | IS200AEPAH1BKE |
1747-L531 | 133396-01 | 3BHB002953R0108 | T9110 | IS220PSVOHIA |
1756-IF16 | 125800-01 | 6640635A1 | T9402 | IS220PAICH1A |
1747-L541 | 133323-01 | NTCL01-A | T9451 | IS220PDIOH1A |
1756-OF8 | 135137-01 | NTD101 | T9802 | IS220PPROH1A |
1785-KA | 125768-01 | SPDS014 | T9852 | IS220PPDAH1A |
2711-T10C15 | 330130-040-00-00 | SPAS011 | T9300 | IS200TBAIH1C |
2711-T10C20 | 330100-90-01 | SPNIS21 | T9100 | IS230TBAIH2C |
1756-CNBR | 330100-90-00 | SPDSI14 | T9832 | IS200STAIH2A |
1747-L541 | 24583-04 | SPNPM22 | T8403 | IS2305TAIH2A |
1757-SRM | TK3-2E | SPFEC12 | T8311 | IS220PMBH1A |
2711-NC13 | 135489-01 | IMASO11 | T8403 | IS200TVBAH2A |
1756-EN2T | 140471-01 | SPBRC300 | T8440B | IS230TVBAH4A |
1746-NI4 | 3500/15 | INNPM12 | T8193 | IS220PTCCH1A |
1756-BA2 | 330130-040-01-00 | IMHSS03 | T8311 | IS200STTCH2A |
1771-IMD/B | 330130-045-01-00 | NTAI05 | T8442 | IS230STTCH2A |
1771-OBD/C | 330130-040-01-05 | NTDI21-A | T8151B | IS200STCIH6A |
1771-P6R C | 330130-080-00-00 | NTHS03 | T8130 | IS230STCIH6A |
1771-P6S B | 330130-00-07-10-02-00 | NTR012-A | T8431 | IS220PRTDHIA |
1785-BCM/C | 330130-080-00-05 | NTCLO1-A | T8403 | IS200SRTDH2A |
1785-L20B | 330130-040-00-00 | P-HC-BRC300 | T8461 | IS230SRTDH2A |
1771-OFE2 | 330130-045-00-05 | 3DDE300402 CMA120 | T8480 | IS200TRLYH1B |
1771-IR | 3500-42M | 3DDE300402 CMA122 | T8191 | IS230TRLYH1B |
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TIMED TWO-POSITION CONTROL
GENERAL
The ideal method of controlling the temperature in a space is to replace lost heat or displace gained heat in exactly the amount needed. With basic two-position control, such exact operation is impossible because the heating or cooling system is either full on or full off and the delivery at any specific instant is either too much or too little. Timed two-position control, however, anticipates requirements and delivers measured quantities of heating or cooling on a percentage on-time basis to reduce control point fluctuations. The timing is accomplished by a heat anticipator in electric controls and by a timer in electronic and digital controls. In timed two-position control, the basic interaction between the controller and the final control element is the same as for basic two-position control. However, the controller responds to gradual changes in the average value of the controlled variable rather than to cyclical fluctuations.