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Thermo Products MG-1018 manual

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Table of contents for the manual

  • Page 1

    MG-1018 ECN4547- MA ECM OPERATION MANUAL FOR U SE WITH MODELS: CHX1-75N CDX1-75N CHX1-100N CDX1-100N CHX1-125N CDX1-125N : IF YOU DO NOT FOLLO W THE SAFET Y PRECAUTIONS BEL OW AN D IN THIS MANUAL , A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSON AL IN JURY, OR LOSS OF LIFE. DO NOT STORE OR USE GASOLINE OR OT HER FLAMMABLE VAPORS AND [...]

  • Page 2

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. i INDEX SECTION B E G I N N I N G P A G E I. FURNAC E SPECIFICTIONS (SHIPP ED SETT INGS) 1 II. BLOWER INFORMA TION 3 A . W I R I N G 3 B . C F M T A B L E S 4 III. ECM T ROUBLESHOOTING 6 A. GENERA L GUIDEL INES TO T ROUBLESHOOTING GE ECM 6 B. TROUBLESHOOT ING CHAR[...]

  • Page 3

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 1 I. FURNACE SPECIFICATIONS ( SH IPPED SETTINGS) CHX1 SERIES MODEL NO. CHX1-75 CHX1-100 CHX1-125 HEAT INPUT RATE IN BTU/HR (High fire/ Low fire) 75,000 / 52,000 100,000 / 70,000 125,000 / 87,500 HEATING CAPACITY IN BTU/HR (High fire/ Low fire) 70,875 / 49,612 94,5[...]

  • Page 4

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 2 CDX1 SERIES MODEL NO. CDX1-75 CDX1-100 CDX1-125 HEATING INPUT RATE IN B TU/H R (High fire / Low fire) 75,000 / 56,250 100,000 / 75,000 125,000 / 93,750 HEATING CAPACITY IN BTU/HR (High fire / Low fire) 69,750 / 52,312 93,000 / 69,750 116,250 / 87,187 HEIG HT OF [...]

  • Page 5

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 3 II. BLOWER INFORM ATION A. WIRING Figure 1: BLOWE R WIRING : TURN O FF T HE ELECTRICAL P OWER to the f urnace b efore a ttem p ting to d isconnect b lower wiring.[...]

  • Page 6

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 4 B. CF M TA B LES The follow ing tables contain blow er speed s ettings an d their respective air f low rates for th e ECM blow er m otor. To change air f low rates f rom th at of the sh ipped setting s, use th e respective S3 and S4 dips witch es on th e furn ac[...]

  • Page 7

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 5 Dip switch setting Continu ous fan CFM Cooli ng CF M Dip switch setting Contin uous fan CFM Coolin g CF M Dip switc h setting Cont inuo us fan CFM Cooli ng CFM 1-OF F 2-OF F 3-ON 4-OF F 500 1150 1-OFF 2-OFF 3-ON 4-OFF 600 1380 1-OF F 2-OF F 3-ON 4-OF F 700 1610 [...]

  • Page 8

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 6 III. ECM TROUBLE SHOOTING A. GENERAL GUIDE LINES TO TROUBLES HOOTING GE ECM – DRIVEN SYS TEMS : Disconnect power from unit before rem oving or replacing connectors , or servicing m otor. Wait at least 5 m inutes after disconnecting power before opening m otor.[...]

  • Page 9

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 7 • “Hunts” o r “puffs” a t high CFM (sp eed ) • Does removing panel o r filter r e d uce “puffing”? ! Reduce restrict ion ! Reduce m ax airflow Evidence of Moisture • Motor failure o r malfunction has occurred and moisture is present • Replace[...]

  • Page 10

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 8 Figure 2: ECM PIN CONNECTORS Troubleshoot ing t able above an d Fig ure 2 adapted f rom GE In dust rial Sy st ems publicat ion GED- 7161C, “Troub lesho oting GE ECM – Driven Systems”.[...]

  • Page 11

    All installatio ns a nd services must be perform ed by qualified serv ice perso nnel. 9 B. TROUBLE SHOOTING CHARTS CONFIRM IF EITHER BLOWER W HEEL IS RUBBING AGAINST HOUSING O R M OTOR SHA FT IS SPINNING FREELY, REPAIR OR REPLACE AS NEC ESSARY. DOES BLOW ER SPIN FREELY? IS THERE 115V SUPPLIED TO MOTOR? CHECK 115V SUPPLY, CONNECT ION FUSES, SERVICE [...]