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Enerco MHU 75 manual

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Table of contents for the manual

  • Page 1

    0 3/05 Revision L1 #60 0 1 6 ENE R CO GR OUP , INC., 4560 W . 1 60TH ST., CLEV EL AND, OHIO 4 4 1 3 5 • 2 1 6- 916 -3 0 00 READ INSTRUC TIONS C AREFULL Y: R ead and f ollow all instructions. Pla ce instructions in a safe pla ce for futur e r efer ence. Do not allo w an y one who has no t r ead these instructions to assemble, ligh t, adjust or ope[...]

  • Page 2

    2 Ener co | Compa ct Unit Heater Opera ting Instructions and Owner’s Manu al GENERAL HAZARD W ARNING: F AIL URE T O COMPL Y WITH THE PRECA UTIONS AND INSTR UCTIONS PR O VIDED WITH THIS HEA TER, CAN RESUL T IN DEA TH, SERIOUS BODIL Y INJUR Y AND PR OPERTY L OSS OR D AMA GE FR OM HAZARDS OF FIRE, EXPL OSION, BURN, A SPHYXIA TION, CARBON MONO X- IDE[...]

  • Page 3

    3 Oper ating Instructions and Owner’s Manu al Ener co | Compa ct Unit Hea ter MHU4 5/MHU7 5 AND HSU4 5/HSU7 5 UNIT DIMENSIONS (N-NA TURAL GAS, P-PR OP ANE) GAS INLET SIDE VIEW SER VICE A CCESS P ANEL HANGING BRA CKETS (2) ADJUST ABLE L OUVERS TOP VIEW MOUNTING SL OT S (T ypical) 5/1 6 x 3 Inches (8 x 7 6 mm) HANGING BRA CKETS AIR FLO W HEA T EXCH[...]

  • Page 4

    4 Ener co | Compa ct Unit Heater Opera ting Instructions and Owner’s Manu al SHIPPING The heater is completely assembled. Installation instructions, two mounting br a cke ts (shipped loose), and a flu e tr ansition are included. Check the unit for shipping d amage. The receiving par ty should conta ct the last carrier immedia tely if an y shippin[...]

  • Page 5

    5 Ope r atin g Inst ruc tion s and Owner ’s Man ual Ene r co | Comp a ct Unit Heater These units are approved for residential applications. For installation in a residential g arage, the se unit s must b e insta lled so th a t b urner s and ignition so urce are located n o l ess than 1 8 ” (4 5 7mm) a bov e fl oor . He a ter must be located or [...]

  • Page 6

    6 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al B – V E RTI C AL VE NT S U S IN G ME T AL VE N T P IP E – CO MM E RC IA L AN D RE S ID EN T IA L IN ST AL L A TIO NS MHU/HSU compact unit heaters are listed as Category I appliances for vertical vent installations. 1 . MH U/HS U unit heaters are to be used with NFP [...]

  • Page 7

    7 Ope r atin g Inst ruc tion s and Owner ’s Man ual Ene r co | Comp a ct Unit Heater 5 . V en t te rmination must be a min imum of 4' (1 .2m ) below or 4’ (1 .2m) horizontally fr om an y sof fit v ent or unde r-eave ven t. 6 . V en t must be a minimum of 6' fr om an insid e corn er forme d by t wo e xter ior walls. If pos sible , leav[...]

  • Page 8

    8 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al F – VE N TI NG USI N G A MA S ON R Y CHI M NE Y The following additional requirements apply when a lined masonry chimn ey is bei ng use d to v ent the compact uni t heater . 1 . Ma sonry chimn eys us ed to ven t Cate gory I units hea ters must be either tile-lined or [...]

  • Page 9

    9 Oper ating Instructions and Owner’s Manu al Ener co | Compa ct Unit Hea ter 5 . T est for spillage a t the dr aft hood relief opening after fiv e minutes of main burner operation. Use the flame of a ma tchor candle, or smok e fr om a cigare tte, cigar , or pipe. 6 . After it has been determined that each appliance remaining connected to the com[...]

  • Page 10

    10 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al control board emits radio noise as the sparking process is unde rway . T he lev el of energy ma y be suf fici ent to distur b a logic circuit in a microprocessor controlled thermostat. It is recommended tha t an isola tion rela y be used when connecting the unit heater[...]

  • Page 11

    11 Ope r atin g Inst ruc tion s and Ow ner ’s Man ual Ene r co | Comp a ct Unit Heater 1 3 . If appliance still will not opera te, follow the ins tructions “T O TURN OFF G AS TO UN IT” and call y our ser vice t echnici an or gas supplier . TO T UR N O FF GA S TO U NI T 1 . Set thermostat to lowest level. 2 . T u rn of f all electrica l po wer[...]

  • Page 12

    12 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al mini mum of 5.0 " w .c. for natur al gas or 1 0 .4" w .c. f or LP/ propane gas should be maintained for proper unit operation. 2 . After line pressure has been checked and adjusted, check manifold pressure. Correct manifold pressure is shown on the unit r ati[...]

  • Page 13

    13 Ope r atin g Inst ruc tion s and Ow ner ’s Man ual Ene r co | Comp a ct Unit Heater WI R IN G S C HE MA TI C FO R UN IT S W IT H 6- P IN CO N NE C T O R SC N- K WC CO N TR OL BO AR D N O T E :I FA N YO FT H EO R I G I N A L W I R EA SS U P P L I E D W I T HT H E A P P L I A N C EM U S TB E R E P L A C E D , I TM U S TB ER E P L A C E DW I T H [...]

  • Page 14

    14 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al P ART S L I S T: SEE BACK P AGE FOR P AR TS ORDE RING INFO RMA TION CO M BU ST I ON AI R BL O W E R Under normal operating conditions, the combustion air blower should be checked and cleaned prior to the heating season with the power supply disconn ected. Use a small b[...]

  • Page 15

    15 Oper ating Instructions and Owner’s Manu al Ener co | Compa ct Unit Hea ter Mr . Heater / Hea tStar • Compact Unit Heater • Model # MHU4 5 /7 5 HSU4 5/7 5[...]

  • Page 16

    16 Ener co | Compa ct Unit Hea ter Opera ting Instructions and Owner’s Manu al W A R N I N G : USE ONL Y MANUF A CTURER’S REPLA CEME NT P A R TS. USE OF ANY O THER P A R TS COULD CA USE INJUR Y OR DEA TH. REPLA CEME NT P A R TS ARE ONL Y A V AIL ABL E DIRECT FR OM THE F A CT OR Y AND MUS T BE INST ALLE D B Y A Q U ALIFIE D SER VICE A GENCY . P [...]