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Carrier 50HG014-028 manual

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  • Page 1

    Manufactu rer res erves the right to dis continu e, or change at any time, sp ecifications or designs wit hout notice and w ithout in curring obli gations. PC 111 Catalog No. 535-00092 Prin ted i n U .S.A. Form 50H G-7SI Pg 1 11-03 Replaces : 50HG-3 SI Book 1 4 Ta b 1 b 6 b Installation Instr uctions CONTENTS Page SAFETY CONSIDERA TIONS . . . . . .[...]

  • Page 2

    2 Fig. 1 — Roof Curb Details[...]

  • Page 3

    3 Step 2 — Remove Shipping Rail s — Remove ship- ping rails prior to lowering u nit onto roof curb. See Fig. 2. The rails are a ttached to the unit at both the ret urn end and condens- er end. Rem ove the screws fr om both ends of each rail. Be careful not to drop t he rails onto any surfac e that could be da m- aged. Discard the ra ils. It is [...]

  • Page 4

    4 Fig. 3 — Rigging Details[...]

  • Page 5

    5 Fig. 4 — Base Unit Dimensions[...]

  • Page 6

    6 Table 1 — P hysical D ata LEGEN D UNIT 50HG 014 016 020 VO L TAGE 208/23 0 and 460 575 208/23 0 and 460 575 208/230 and 460 57 5 NOMINAL CAP ACITY (T ons) 12.5 12.5 15 15 17.5 17.5 OPERA TING WEIGHT (lb) 50 SERI ES (Cooling On ly) 2017 2017 2 111 2111 2139 213 9 COMPRESSOR Quantit y 2 2 3333 Number of Re frigera nt Circuits 2 2 3333 Oil (ounces[...]

  • Page 7

    7 Table 1 — Phy sica l Dat a (cont ) LEGEN D UNIT 50HG 024 028 VO LT AG E 208/23 0 and 460 575 AL L NOMINAL CAP ACITY (T ons) 20 20 25 OPERA TING WEIGHT (lb) 50 SERIE S (Cooling Only) 2187 2187 2446 COMPRESSOR Qua ntity 33 2 Numb er of Re friger ant Circ uit s 33 2 Oil (ounces) Ckt A... Ckt B...Ckt C 72...72. ..72 72...72.. .72 110...110 ...NA RE[...]

  • Page 8

    8 Step 4 — Field F abricate Ductwor k — Secure all ducts to building structure. Use flexible duct connect ors be- tween unit and ducts as required. Insulate and weatherproof all external ductwork, joints , and roof openings with counter flashing and mastic in accordance with applicable co des. Ducts passing t hrough an unconditioned space must [...]

  • Page 9

    9 Step 6 — T rap Condensate D rain — See Fig. 10 for drain location. One 3 / 4 -in. half coupling is provided outside unit evaporator sect ion for condensate drain connection. A trap at least 4-in. dee p must be used. See Fig. 1 1. Step 7 — Make Electri cal Connections FIELD POW ER SUPPL Y — Unit is factory wired for volt- age shown on unit[...]

  • Page 10

    10 Table 2A — Elect rical Data (Units Wit hout Optional Convenien ce Outlet) LEGEND A ND NOTES FO R TABLES 2A AND 2B LEGEND *Fuse or HACR circuit breaker . †208/230 v 75 -kW Electric Heat units m ust use dual-po int wiring. The ma in table list s the branch circuit v alues for the refrigeratio n par t of the system. The following two tab les li[...]

  • Page 11

    11 Table 2A — Electrical Data (Units Without Optional Convenie nce O utlet ) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legend and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) VO LTA G E RANGE COMPRESSOR OFM ELECTRIC HEA T IFM POW[...]

  • Page 12

    12 Table 2A — Electrical Data (Units Without Optional Convenie nce O utlet ) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legen d and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IFM [...]

  • Page 13

    13 Table 2A — Electrical Data (Units Without Optional Convenie nce O utlet ) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legend and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IFM P[...]

  • Page 14

    14 Table 2A — Electrical Data (Units Without Optional Convenie nce O utlet ) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legen d and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IF M[...]

  • Page 15

    15 Table 2B — Elect rical Data ( Units With O ptional Convenie nce Outlet) See Legend and Notes on page 10. UNIT SIZE 50HG NOMINAL VO LTA G E (3 P h, 6 0 Hz) V O LTA G E RANGE COMPRESSOR OFM EL ECTRIC HEA T IF M PO WER EXHAUST PO WER SUPPL Y DISCONNECT SIZE No. 1 No. 2 No . 3 Min Max RLA LRA RLA LRA RLA LRA Qty H p FLA (ea) kW FLA Hp FLA Qty Hp F[...]

  • Page 16

    16 Table 2B — Electrical Data (Units With Optional C onvenience Outlet) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legen d and Notes on page 10. UNIT SIZE 50HG NOMINAL VO LTA G E (3 P h, 6 0 Hz) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IFM PO WE[...]

  • Page 17

    17 Table 2B — Electrical Data (Units With Optional C onvenience Outlet) (co nt) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legend and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 Hz) V O LTA G E RANGE COMPRESSOR OFM ELEC TRIC HEA T IFM POWER [...]

  • Page 18

    18 Table 2B — Electrical Data (Units With Optional C onvenience Outlet) (cont) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legen d and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IFM POWER[...]

  • Page 19

    19 Table 2B — Electrical Data (Units With Optional C onvenience Outlet) (co nt) ELECTRIC HE AT BRANCH CIRCUIT FOR 20 8/240-V 75-kW ELECTRI C HEAT FEEDER CIRCUIT FOR 208/230-V UNIT WITH 75- kW ELECTRIC H EAT See Legend and Notes on page 10. UNIT SIZE 50HG NOMINAL V O LTA G E (3 Ph, 60 H z) V O LTA G E RANGE COMPRESSOR OFM ELECTRI C HEA T IF M POWE[...]

  • Page 20

    20 Set heat anticipator settings as shown in Table 3. Table 3 — Heat An ticipator S ettings Settings m ay be changed slightly to provide a greater degree of comfort for a partic ular installation. Step 8 — Instal l Outdoor Air Hood — Pe rform the following procedu re to install the outdoor-air hood: 1. Remove blank pane l from return end of u[...]

  • Page 21

    21 TOP HOOD SECTION SEAL STRIP LOCA TION BOTTOM HOOD SECTION FIL TER GUIDE FIL TER GUIDE HOOD SIDE ADD SEAL STRIP ADD SEAL STRIP HOOD SIDE INNER FIL TER TRACK ADD SEAL STRIP ADD SEAL STRIP UNIT BACK P ANEL FIL TER RET AINER FIL TER MANUAL DAMPER (IF EQUIPPED) MOVEABLE DAMPER AIR FIL TER POSITION LOCKING SCREW MOVEABLE DAMPER NO TE: Units wit h manu[...]

  • Page 22

    22 Step 9 — P osi tion O ptio nal Power Exh aust o r Barometr ic R elief D amp er Ho od — The optional power exhaust or barometr ic relief dampers ar e shipped assembled and tilted back into the u nit for ship ping. Brack- ets and extra screws are s hipped in shrink wrap ar ound the damp ers. 1. Remove 9 screws holding each damper assembl y in [...]

  • Page 23

    23 Step 11 — Instal l All Accessories — After all of the factory-installed options ha ve been adjusted, install all field-instal led acces sories. Refer t o the acces sory insta llation instructions included with each accessory . Consult the Carrier Price Pages for accessory package numbers for particular applications. The available fi eld-inst[...]

  • Page 24

    Manufactu rer res erves the right t o discontinu e, or change at any time, s pecifications or d esigns without noti ce and wi thout in curring obligati ons. PC 111 Catalog No. 535-00092 Prin ted in U.S.A. Form 50H G-7SI Pg 24 11-03 Replaces : 50HG-3 SI Book 1 4 Ta b 1 b 6 b Copyright 2 003 C arrier Cor poration[...]