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Carrier 48HG14---28 manual

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Table of contents for the manual

  • Page 1

    48HG14 - - - 28, 48HJ20 - - - 28 48PG20 - - - 28, 48PM16 - - - 28 Gas Heati ng/El ectric Coolin g Un it User’s Information Manual NOTE TO INST ALLER: This m anua l s houl d be le ft wi t h the e quipm ent owne r . T ABLE OF CONTENTS SAFETY CONSIDERA TI ONS 1 ......................... DETERMINE TYPE OF UNI T CONTROL 2 ............... TO LI GHT UNI[...]

  • Page 2

    2 ELECTRICAL SHOCK HAZARD Fai lure t o fol low this wa rni ng c ould r esul t in per sonal i njury or dea th. Befo re p erform ing reco mmen d ed m ain tenan ce, b e su re main powe r s witc h to unit is turne d of f a nd lockout ta g is ins tal led. ! W ARNING Y our com bina tion he ati ng/cool i ng unit is equi ppe d wit h dire ct spark ig n itio[...]

  • Page 3

    3 Ste p 8 — Remove lockout ta g a nd tur n on the e lec tri ca l suppl y to un it. Ste p 9 — Open the e xt er nal gas pipi ngs ma nual shut of f va lve loc ate d outsi de the unit . Step 10 — Set ro o m th ermo stat temp eratu re selector slig h tly above room t empe ra ture and s et s yste m swi tc h to HEA T pos ition to start th e u nit. T[...]

  • Page 4

    4 LO C K -O U T TA G ON OFF MAIN STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 OFF ON CONTROL I.D. LABE L 1/4˝ X .032˝ MALE SPADE TERMINALS (2) COMMON SWITCH (SHIPPED IN “ON” POSITION) OFF ON CONTROL I.D. LABE L 1/4˝ X .032˝ MALE SPADE TERMINALS (2) COMMON SWITCH (SHIPPED IN “ON” POSITION) C09513 Fig . 2 - - T o[...]

  • Page 5

    5 LO C K -O U T T A G ON OFF MAIN STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 Run Status Service T est T emperature Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Alarm Status ENTER MODE ESCAPE Run Status Service T est T emperature Pressures Setpoints Inputs Outputs Configuration Time C[...]

  • Page 6

    6 T O LIGHT UNIT (UNITS WITH COMFORT LINK ™ CONTROL) (CONTINUED) See Fig . 1 for locatio n of gas valv e. Refer to Fig . 3 w hile pro ceed ing w ith th e fo llo win g step s. Ste p 1 — Tur n of f the unit dema nd for c ooling or hea ti ng by usin g th e Scrollin g Marq u ee. The Scro lling M arqu ee is located in the c ontrol box at t he com pr[...]

  • Page 7

    7 LO C K -O U T TA G ON OFF MAIN STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 OFF ON CONTROL I.D. LABEL 1/4˝ X .032˝ MALE SP ADE TERMINALS (2) COMMON SWITCH (SHIPPED IN “ON” POSITION) C09578 Fig. 4 - - T o Shut Unit Of f Ste p 1 — Tur n of f the unit dema nd for c ooling or hea ti ng by usin g th e Scrollin g Marq u ee. The Scro lling M[...]

  • Page 8

    8 LO C K -O U T T A G ON OFF MAIN STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 Run Status Service T est T emperature Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Alarm Status ENTER MODE ESCAPE OFF ON CONTROL I.D. LABEL 1/4˝ X .032˝ MALE SP ADE TERMINALS (2) COMMON SWITCH (SHIPPED IN “ON” POSITION) C09[...]

  • Page 9

    9 ROUTINE MAINTENANCE AND CARE FO R THE EQUIP MENT OW NER Befo re proceed in g with th ose thin g s you m igh t want to maintain yours elf , pl ea se c ar eful ly consi der the f ol lowi ng: FIRE, EXPLOSI ON HAZARD Fai lure to fol low t his w ar ning c ould re sult in pe rs onal inj ury , dea th, and/ or proper ty dama ge. 1.T urn of f ga s s upply[...]

  • Page 10

    10 Combustion Area and V ent System The com bust ion ar ea a nd ve nt s yste m should be vi sual ly ins pect ed befo re each heatin g season . T he n o rmal accu m ulatio n o f dirt, soo t, rust, and scale can resu lt in lo ss o f ef ficien cy and im p rop er perfo rman ce if allo wed to b u ild up . FIRE HAZARD Fai lure to fol low t his w ar ning [...]

  • Page 11

    11 7. Ins pect ion of all s upply - - ai r and re turn- - ai r duct s for l eaks , obst ruct ions, a nd ins ulat ion int egri ty . Any probl em s f ound shoul d be re solve d at t his t ime . 8. Inspe cti on of the unit ba se to ensur e that no cra cks , gaps , etc., exi st wh ich m ay cau se a h azar dous cond ition. 9. Ins pect ion of the unit c [...]