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Bryant 619CNQ manual

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Table of contents for the manual

  • Page 1

    Cancels: II 619C-24-3 II 619C-24-4 4/15/06 CONTENTS Page SAFETY CONSIDERA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1 INST ALLA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 I. Step 1 — Complete Pre-Installation Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 II. Step [...]

  • Page 2

    —2— T able 1 — System Matches *Units must be field reconfigured f or 1 1 / 2 ton (18,000 Btuh) operation. See Bef ore Installation section on page 3 for details. NO T E: Numbers in ( ) indicate quantities when there is more than one fan coil unit in the system. Ensure unit operation within the application guidelines shown in T able 2. When in[...]

  • Page 3

    —3— T able 3A — Physical Data, Unde r Ceiling Cooling Onl y Units *Field reconfigured to 18,000 Btuh (1 1 / 2 tons). See Before Installation section on this page for details . †The valv e connect ion size is 7 / 8 inch. The recommended line size is 1 1 / 8 inch. I. STEP 1 — COMPLETE PRE-INST ALLA TION CHECKS A. Unpack Unit Store fan coil [...]

  • Page 4

    —4— T able 3B — Physical Data, Under Ceiling Heat Pump Units *Field reconfigured to 18,000 Btuh (1 1 / 2 tons). See Before Installation section on page 3 for details. †The valv e connect ion size is 7 / 8 inch. The recommended line size is 1 1 / 8 inch. 3. Remove inlet grilles from in door unit by sliding for- ward. Reinstall prior to unit [...]

  • Page 5

    —5— Fig. 3 — Base Unit Dimensions UNIT SIZE WEIGHT (lb) A B E F G Cooling Only Heat Pump ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm 024 108 110 4- 2 15 / 16 1294 3-10 1169 4- 1 5 / 8 1260 — — 1- 9 5 / 8 549 036 117 119 4-10 13 / 16 1493 4- 5 7 / 8 1368 4- 9 1 / 2 1459 — — 2- 1 1 / 2 648 048 149 151 5-11 9 / 16 1817 5- 6 5 / 8 1[...]

  • Page 6

    —6— 5. Run refrigerant piping as directly as possible and avoid any unnecessary turns or ben ds . 6. Condensate piping can be dir ected through the inside wall to an approved drain or straight o utside. NO TE: The piping hole for condensate line must slope at a minimum pitch of 1 / 4 in. per foot to ensure proper drainage . If proper pitch cann[...]

  • Page 7

    —7— F . T o Install Thermostat: If there is at least 3 / 8 in. of space between the back of indoor unit and wall: 1. Route thermostat wires (fi eld-supplied) through slot in right side or rear panel of indoor unit (F ig. 3). 2. Route wires over refr igerant and drain piping as shown in Fig . 12. IMPORT ANT : Do not route wires under the piping [...]

  • Page 8

    —8— 3. Insulate and caulk wall openings to reduce air infil- tration and refrigerant pipe vibrations on structure. 4. Evacuate piping, if necessary . If either refrigerant piping or the indoor coil is exposed to atmospheric conditions , it must be ev acua ted to 1000 microns to eliminate contamination and moisture in the system. V . STEP 5 — [...]

  • Page 9

    —9— HEX-HEAD BOLT MOUNTING SLOT Fig. 10 — Mounting Ha nging Brackets Fig. 11 — Hangin g Fan Co il Unit *F actor y-supplied. Fig. 12 — Routing Wires Over Piping NO TE: T eflon Seal must face to ward the outdoor heat pump unit. Fig. 13 — AccuRater Meteri ng Device at Service V alve (Bypass T ype Components), Heat Pump Systems Only a40-625[...]

  • Page 10

    —10— VI. STEP 6 — MAKE ELECTRICAL CONNECTIONS Be sure field wiring complies with local building codes and NEC , and unit voltage is within limits shown in T ab le 5. Contact local power company for correction of improper line voltage. NO TE: Use copper wire only betw een disconnect switch(es) and unit. NO TE: Instal l branch circuit disconnec[...]

  • Page 11

    —11— Fig. 14 — Component Location (T ypical Ceiling-Suspended System) LEGEND *Standard. †Accessory item. **Field supplied. ††Insulate for heat pump application. NO T ES: 1. All piping must f ollow standard refr igerant piping techniques. 2. All wiring must comply with the applicable local and national codes . 3. Liquid line need not be [...]

  • Page 12

    —12— VII. STEP 7 — INST ALL THERMOST A T These systems use a 3-speed thermostat. The thermostat monitors the system operatio n and controls the operating mode. T o change settings or re fer to the thermostat Operat- ing Instructions. Mount thermostat to a wall in the occupied space using 2 field-supplied screws . Locate th e thermostat in an [...]

  • Page 13

    —13— LEGEND ASM — Air Sweep Motor ASR — Air Sw ee p Rela y EQUIP GND — Equipment Ground FL — Fuse Link FPT — F reeze Protection Ther mostat HP — Heat Pump HR — Heater Relay HTR — Heater HTT — Heater T emp. Thermostat IFM — Indoor-F an Motor NEC — National Electrical Code PL — Plug TB — T er minal Board TRAN — T ransf[...]

  • Page 14

    —14— AUTO COOL HEA T COOL HEA T AUTO FLA T THERMOST A T (FLA TST A T) COOLING ONL Y HEA T & COOL (53DFS250-FS-BR Y) SLIMLINE THERMOST A T HEA T PUMP COOLING ONL Y HEA T & COO L (53DFS250-SL-BR Y) 5-1-1 PROGRAMMABLE THERMOST A T COOLING ONL Y HEA T & COOL (53DFST2-NP-BR Y) Fig. 18 — Thermostats a40-1384 a40-1385 a40-1386[...]

  • Page 15

    —15— VIII. STEP 8 — MAKE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNITS The thermostat is wired betw een the indoor and outdoor units to make the s ystem complete. A. Check AccuRater Metering Device The correct Ac cuRater (bypass type) refrigerant con t rol is required for system capacity optimization. An AccuRater device (see Fig. 19) is suppl[...]

  • Page 16

    —16— 5 38 A 619CNF ,CNQ 5 38 A 619CNF ,CNQ Fig. 20 — Cooling System Wiring Diagram a40-1636[...]

  • Page 17

    —17— 619CNQ 5 38 B 5 38 B 619CNQ Fig. 21 — Heat Pump Wiring Diagram a40-1637[...]

  • Page 18

    —18— ST ART -UP Make the following checks and complete the Start-Up Check- list on page CL-1 before sy stem start-up. Also refer to the condensing unit Installation, St art-Up and Service Instructions for system start-up instructions and refrigerant charging methods . 1. Check condensate drainage system: a. Remove grille and frame from the unit[...]

  • Page 19

    —19— The DFB logic checks the 10-m inute defrost timer and the DFT . If the DFT opens in less than 10 minutes , the DFB switches the unit back to norm al heating operation. If the DFT remains closed, the DFB switches the unit back to heating operation after 10 minu tes. When the DFB changes back to heating mode , the RVR (reversing valve relay)[...]

  • Page 20

    —20— III. CLEAN INDOOR UNIT BOTT OM P ANEL If the bottom panel of the unit becomes dirty or smudged, wipe the outside of the panel wi th a soft dry cloth. Use a mild liquid detergent and wipe off carefully with a dry cloth. IV . CLEAN INDOOR COIL T o clean the coil, remove ind oor unit bottom panel and vac- uum the coil fins, using care not to [...]

  • Page 21

    —21— T able 7 — T roubleshooting *If fuse blo ws or circuit breaker trips again after firs t star t attempt, DO NOT attempt to start system again. Contact your local dealer f or assistance. †When outdoor temperature is approximately 55 F or bel ow , indoor coil frosting may occur when system is operated in cooling or maximum dehumidificatio[...]

  • Page 22

    Copy right 2006 Bryant Heating & Cooling Systems Printed in U.S .A. CA T ALOG NO . 02-619C0001-II SER VICE TRAINING P ackaged Service Training programs are an excellent wa y to in crease your knowledge of the equip- ment discussed in this manual, includi ng: • Unit F amiliarization • Maintenance • Installation Overview • Operating Seque[...]

  • Page 23

    CL-1 ST ART -UP CHECKLIST I. PRELIMINAR Y INFORMA TION OUTDOOR UNIT : MODEL NO. ___________________ INDOOR UNIT : MODEL NO . _____________________ SERIAL NO . ________________________________ ___ SERIAL NO . ________________________________ ___ ACCESSORIES: _________________________________________ _________________________________________ PISTONS:[...]

  • Page 24

    Copy right 2006 Bryant Heating & Cooling Systems Printed in U .S.A. CL-2 6-06A CA T ALOG NO. 02-619C00 01-II CUT ALONG DO TTED LINE CUT ALONG DOTTED LINE ST ART -UP CHECKLIST (c ont) IV . ST ART -UP IF UNIT HAS A CRANKC ASE HEATER, HAS IT BEEN ON FOR 24 HOURS? ____________ MEASURE AND RECORD THE: AIR ENTERING OUTDOOR UNIT : ____________ F AIR E[...]