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Carrier 48MA/50ME016-040 manuel d'utilisation

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Tout d'abord, le manuel d’utilisation Carrier 48MA/50ME016-040 devrait contenir:
- informations sur les caractéristiques techniques du dispositif Carrier 48MA/50ME016-040
- nom du fabricant et année de fabrication Carrier 48MA/50ME016-040
- instructions d'utilisation, de réglage et d’entretien de l'équipement Carrier 48MA/50ME016-040
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

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Table des matières du manuel d’utilisation

  • Page 1

    Installation, Start-Up and Service Instructions CONTENTS Page SAFETY CONSIDERA TIONS ...................2 INST ALLA TION ............................. 2-34 General ......................................2 Unit Clearances ..............................2 Roof Curb ...................................2 Roof Openings ...............................2 Rigg[...]

  • Page 2

    SAFETY CONSIDERA TIONS Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical com- ponents. Only trained and qualified service personnel should install, repair , or service air -conditioning equipment. Untrained personnel can perform basic maintenance func- tions of cleaning coils and filte[...]

  • Page 3

    CONDENSER SECTION AIRFLOW CONN — Connection NOTES: 1. Space required for service and airflow all around and above unit is 36 inches. 2. For additional information see Fig. 4. 3. Center of gravity is within 6 in. radius of geo- metric center of unit. 4. Maximum allowable pitch of unit is 1 ⁄ 2 in. per 10 ft in any direction. UNIT 48MA DIMENSION[...]

  • Page 4

    CONDENSER SECTION AIRFLOW CONN — Connection NOTES: 1. Space required for service and airflow all around and above unit is 36 inches. 2. For additional information see Fig. 5. 3. Center of gravity is within 6 in. radius of geo- metric center of unit. 4. Maximum allowable pitch of unit is 1 ⁄ 2 in. per 10 ft in any direction. UNIT 50ME DIMENSION[...]

  • Page 5

    Rigging Unit — Inspect unit for shipping damage, and file any damage claim immediately with transportation company . Lift unit with cables and spreader bars, using lifting brack- ets provided (Fig. 1 and 2). Lift one unit at a time, keep unit upright, and do not drop. Unit weights are given in T able 1. Unit center of gravity is within 6 in. of [...]

  • Page 6

    T able 1 — Physical Data UNIT 48MA/50ME 016 024 028 030 034 040 Zone Modules (Quantity) 8 8 10 10 12 12 Nominal Cooling Capacity (tons) 15 20 25 28 30 37 OPERA TING WEIGHT (lb) Base Unit 48MA 3395 3815 4075 4080 5340 5710 Base Unit 50ME (with electric heat) 2995 3415 3675 3680 4900 5270 Roof Curb 506 506 506 506 630 630 REFRIGERANT CHARGE — R-2[...]

  • Page 7

    EV APORA TOR (ZONE MODULE) AIRFLOW CONN — Connection *Not used on 48MA016,024 (8 zone module units). NOTES: 1. For additional information, see T able 1 and Fig. 1. 2. Maximum allowable unit pitch is 1 ⁄ 2 in. per 10 ft in any direction. 3. Remove shipping brace before assembling curb section (location shown). UNIT 48MA DIMENSIONS (ft-in.) ABC D[...]

  • Page 8

    EV APORA TOR (ZONE MODULE) AIRFLOW CONN — Connection *Not used on 50ME016,024 (8 zone module units). NOTES: 1. For additional information, see T able 1 and Fig. 2. 2. Maximum allowable unit pitch is 1 ⁄ 2 in. per 10 ft in any direction. 3. Remove shipping brace before assembling curb section (location shown). UNIT 50ME DIMENSIONS (ft-in.) ABC D[...]

  • Page 9

    Condensate Drains — Pipe nipples covered with foam rubber insulation are shipped in unit return air filter section (6 nipples in units 48MA, 4 nipples in units 50ME). Install a nipple in each drain connection on both sides of unit. See Fig. 1 and 2 for drain locations. Be sure foam rubber seals space between nipple and base rail opening to preve[...]

  • Page 10

    Unit has factory-installed gas shutof f valves. Install gas shutof f valve external to unit if required by code (Fig. 8). After piping is complete, pressurize gas line and check for leaks with soap and water solution. Do not use an open flame when checking for gas leaks. Optional Glycol Connections (50ME) — Each zone module has its own glycol he[...]

  • Page 11

    Use the following formula to determine the percent volt- age imbalance. % V oltage Imbalance: max voltage deviation from average voltage = 100 × average voltage EXAMPLE: Supply voltage is 460-3-60. AB = 452 v BC = 464 v AC = 455 v 452 + 464 + 455 A verage V oltage = 3 1371 = 3 = 457 Determine maximum deviation from average voltage. (AB) 457 − 45[...]

  • Page 12

    T able 3 — Unit 50ME Electrical Data UNIT 50ME VOL T AGE (3 Ph, 60 Hz) VOL T AGE RANGE COMP NO. 1 COMP NO. 2 OFM FLA IFM POWER SUPPL Y Min Max RLA LRA RLA LRA No. 1 No. 2 No. 3 Hp FLA MCA MOCP 016 208/230 187 254 63.6 266 — — 6.2 6.6 —5 16.2 109.6 125 460 414 508 28.6 120 3.0 6.6 49.5 60 575 518 632 22.8 96 2.4 5.6 39.6 45 024 208/230 187 2[...]

  • Page 13

    T able 5 — Unit 50ME Electrical Application Data UNIT 50ME NOMINAL VOL T AGE kW (Unit T otal) MCA Cooling Heating Circuit Unit Common Feed Size IFM Hp 12 016 5 208/230 43/ 53 57/ 70 87/106 109.8/109.8 150.0/165.6 200.0/220.9 150.0/165.8 — — 150.0/165.8 184.8/192.6 216.7/237.6 316.7/348.3 460 53 70 106 49.5 82.9 1 10.5 165.8 — 90.9 1 17.1 17[...]

  • Page 14

    Field Control Wiring ZONE THERMOST A TS — Install a Carrier approved ac- cessory zone thermostat assembly in each zone according to installation instructions included in the accessory . Locate each thermostat assembly in the space where it will sense average zone temperature. Route thermostat cable or equivalent single leads of no. 18 A WG (Ameri[...]

  • Page 15

    Fig. 10 — Zone Control Board Component Location (cont) 15[...]

  • Page 16

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1 [...]

  • Page 17

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1 [...]

  • Page 18

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 19

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 20

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 21

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 22

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — Modules 1 and 3 Stage 2 ?[...]

  • Page 23

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — Module 3 Stage 2 — Modu[...]

  • Page 24

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 25

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1 [...]

  • Page 26

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1 [...]

  • Page 27

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 28

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 29

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw T erminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1,[...]

  • Page 30

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw Terminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1, [...]

  • Page 31

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw Terminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — Modules 1 and 3 Stage 2 ?[...]

  • Page 32

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw Terminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — Module 3 Stage 2 — Modul[...]

  • Page 33

    LEGEND C— Contactor CR — Control Relay GV — Gas V alve HA — Heat Anticipator HR — Heating Relay TC — Thermostat, Cooling TH — Thermostat, Heating TRAN — T ransformer Screw Terminal Quick-Connect T erminal Factory Control Wires Printed Circuit Field Wiring *One for each module. NOTES: 1. COOLING Stage 1 — First stage of modules 1, [...]

  • Page 34

    ACCESSOR Y REMOTE CONTROL P ANEL — This central- station control can be set to override zone thermostat mode settings to lock out heating or cooling for the entire unit. The DA Y/NIGHT switch and damper position knob provide in- space, central control of damper position. Panel also houses the filter light to indicate reduced airflow and need fo[...]

  • Page 35

    The heating thermostat energizes a 1 15-v solenoid by means of a gas valve relay and the pilot lights. The main burner comes on after the pilot is proven. The safety switches (airflow switches 1 and 2, pilot flame sensor , door switch, and limit switches) are in series with the gas valve. Gas Heat Lighting Procedure (48MA) 1. Purge gas supply lin[...]

  • Page 36

    3. T urn system switch to ON position. Set each zone ther- mostat at setting to call for heat. Pilot will ignite. NOTE: A time-delay relay will shut unit down in 180 sec- onds if main manual gas valve is not open. 4. Remove burner access panel. 5. Remove screw-cap cover on zone gas valve to expose pi- lot adjusting screw . W ith a small screwdriver[...]

  • Page 37

    Fig. 33 — Spoiler Screw Location LEGEND COMPR — Compressor COND — Condensing *AFS1 deenergizes control circuit if loss of indoor air occurs. †Factory-supplied option. Fig. 34 — Major Component Identification (T ypical 10-Zone Unit Shown; 8-Zone Units Similar) 37[...]

  • Page 38

    When OA T is open, final stage heating element in all zone modules is inactive. When OA T is closed, final stage heating element in a zone module may be energized whenever second- stage thermostat for that zone module calls for heat as follows: UNITS WITH 2-ELEMENT HEA TERS First-Stage Heat — One element energized Second-Stage Heat OA T Open ?[...]

  • Page 39

    HEA TING (48MA) — On call for heating from a zone, the forced draft blower will start and the pilot will light. The zone burner will ignite after the pilot has been proven. (Ap- proximately 60 seconds.) NOTE: A time-delay relay will shut unit down in 180 sec- onds if the unit main gas valve is not open. HEA TING (50ME WITH ELECTRIC HEA T) — On [...]

  • Page 40

    TO ADD OR REMOVE OIL 1. Close liquid line and hot gas bypass shutof f valves. See Fig. 31. 2. Pump down compressor and close suction and discharge service valves. Recover remaining refrigerant in compressor . 3. Add oil through oil filler plug. 4. T o remove oil, remove crankcase oil drain plug, and drain only as much oil as is required. Compresso[...]

  • Page 41

    Condenser Fans Shut of f service switch to deenergize condenser-fan motors. ADJUSTMENT — Remove fan guard from top of unit. Re- move rubber hubcap from fan hub and loosen fan hub set- screws. Adjust fan height using a straight edge laid across fan deck venturi (Fig. 38). T ighten setscrews and replace rub- ber hubcap to prevent hub from rusting t[...]

  • Page 42

    PULLEY REMOV AL 1. Shut of f unit power . 2. Loosen fan motor mounting plate and remove belt. 3. Loosen pulley setscrew . 4. Slide pulley of f shaft. Reverse steps 1-4 to install new pulley . PULLEY ALIGNMENT — Loosen fan pulley setscrews and slide fan pulley along fan shaft for parallel alignment. Make angular alignment by loosening motor from m[...]

  • Page 43

    LEGEND 1— Bearing Liner 2— Speed Nut ( 5 ⁄ 16 in.) 3— W asher 4— Rivet 5— Speed Nut ( 7 ⁄ 16 in.) 6— Speed Nut ( 1 ⁄ 4 in.) 7— Damper Lever 8— Linkage Bar 9— Linkage Rod (15 in.) 1 0— Linkage Rod (22 in.) Airflow Direction Fig. 40 — Economizer and Exhaust Damper Assemblies, Exploded View 43[...]

  • Page 44

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  • Page 46

    P ACKAGED SER VICE TRAINING Our packaged service training programs provide an excellent way to increase your knowledge of the equipment discussed in this manual. Product programs cover: • Unit Familiarization • Installation Overview • Maintenance • Operating Sequence A lar ge selection of product, theory , and skills programs is available. [...]

  • Page 47

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  • Page 48

    ST ART -UP CHECKLIST MODEL NO.: DA TE: SERIAL NO.: TECHNICIAN: PRE-ST ART -UP: M VERIFY THA T ALL P ACKING MA TERIALS HA VE BEEN REMOVED FROM UNIT M REMOVE ALL SHIPPING HOLDDOWN BOL TS AND BRACKETS PER INSTRUCTIONS M VERIFY INST ALLA TION OF ECONOMIZER HOOD M VERIFY THA T CONDENSA TE CONNECTION IS INST ALLED PER INSTRUCTIONS M VERIFY THA T ALL ELEC[...]