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Bard CTHAC181-A Installation Instructions Manual

Manual is about: Outdoor Condensing Section

Summary of CTHAC181-A

  • Page 1

    Installation instructions manual no.: 2100-292 date: 12-19-96 outdoor condens- ing section models: cthac181-a cthac181-d cthac241-a cthac241-d cthac301-a cthac301-d cthac361-a cthac361-g cthac421-a cthac421-e cthac421-f cthac421-g cthac481-a cthac481-b cthac481-e cthac481-e cthac481-g cthac601-a cth...

  • Page 2: Contents

    Contents figures figure 1 .................................................................... 1 figure 2 .................................................................... 3 figure 3 .................................................................... 4 figure 4 .....................................

  • Page 3

    Page 1 manual 2100-292 split air conditioner general information split air conditioner model nomenclature table 1 — dimensions “w” “d” “h” model no. Width depth height cthac181 40" 15" 26" cthac241 cthac301 45" 15" 26" cthac361 cthac421 cthac481 50" 15" 32" cthac601 cthac 36 1 - a electrical charact...

  • Page 4

    Page 2 manual 2100-292 table 3 — specifications (continued) models cthac481-a cthac481-b cthac601-a cthac601-b electrical rating (60hz/v/ph) 230/208-1 230/208-3 230/208-1 230/208-3 operating voltage range 197 - 253 187 - 253 197 - 253 187 - 253 minimum circuit ampacity 26 17 35 21 q field wire size ...

  • Page 5

    Page 3 manual 2100-292 table 4 — specifications models cthac181-d cthac241-d cthac301-d cthac361-g cthac421-g cthac421-e cthac421-f electrical rating (50hz/v/ph) 240/220-1 240/220-1 240/220-1 220/200-1 220/200-1 220/200--3 415/380-3 operating voltage range 198 - 254 198 - 254 198 - 254 180 - 242 180...

  • Page 6: Application and Location

    Page 4 manual 2100-292 application and location general these instructions explain the recommended method to install the air cooled remote type condensing unit, the interconnecting refrigerant tubing and the electrical wiring connections to the unit. The condensing units are to be used in conjunctio...

  • Page 7

    Page 5 manual 2100-292 step 2. The tubing ends should be cut square. Make sure it is round and free of burrs at the connecting ends. Clean the tubing to prevent contaminants from entering the system. Note: do not braze line to units! If orifice needs to be changed, change out orifice first. If the o...

  • Page 8

    Page 6 manual 2100-292 step 8. Wrap a wet rag around the copper stub before brazing. Step 9. Flux the copper tube and insert into the stub. Braze the joint using an alloy of silver or copper and phosphorus with a melting temperature above 1,100° f for copper to copper joints. The phosphorus will act...

  • Page 9: Wiring Instructions

    Page 7 manual 2100-292 wiring instructions general all wiring must be installed in accordance with the national electrical code and local codes. In canada, all wiring must be installed in accordance with the canadian electrical code and in accordance with the regulations of the authorities having ju...

  • Page 10: Optional Controls

    Page 8 manual 2100-292 optional controls installation instructions — cma-1 disconnect all power to unit. Remove control panel cover. Step 1. Mount lockout relay in position shown in figure 5. Step 2. Disconnect yellow low voltage (y) wire at compressor contactor coil or (y1) at optional cma-5 and re...

  • Page 11

    Page 9 manual 2100-292 installation instructions — cma-2 disconnect all power to unit. Remove control panel cover. Step 1. Snap control assembly into control panel as shown in figure 5. Step 2. Disconnect yellow low voltage (y) wire at compressor contactor coil or (y1) at optional cma-5 and reconnec...

  • Page 12

    Page 10 manual 2100-292 installation instructions — cma-5 disconnect all power to the unit. Remove control panel cover. Step 1. Mount compressor tdr in position shown in figure 5 with screw provided. Step 2. Disconnect yellow low voltage (y) wire at the compressor contactor coil and reconnect to the...

  • Page 13

    Page 11 manual 2100-292 installation instructions — cma-11 disconnect all power to unit. Remove control panel inner cover. Step 1. Snap control assembly into control panel as shown in figure 5. Step 2. Disconnect yellow low voltage (y) wire at compressor contactor coil or (y1) at optional cma-5 and ...

  • Page 14: Charging Instructions

    Page 12 manual 2100-292 charging instructions pressure service ports high and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure tables can be found later in the manual covering all models. It is imperative to match the correct pres...

  • Page 15: Service

    Page 13 manual 2100-292 service service hints 1. Caution homeowner to maintain clean air filters at all times. Also, not to needlessly close off supply and return air registers. This reduces air flow through the system, which shortens equipment service life, as well as, increasing operating costs. 2...

  • Page 16

    Page 14 manual 2100-292 indoor section return air temperature pressure 75 80 85 90 95 100 105 110 115 fcp24 75° db/62° wb low side 70 72 74 76 78 80 82 84 86 high side 187 202 217 231 246 260 275 290 304 80° db/67° wb low side 75 77 79 82 84 86 88 91 93 high side 192 207 222 237 252 267 282 297 312 ...

  • Page 17

    Page 15 manual 2100-292 indoor section return air temperature pressure 75 80 85 90 95 100 105 110 115 fcp30 75° db/62° wb low side 64 67 70 73 76 79 82 85 88 high side 202 216 230 245 259 273 287 302 316 80° db/67° wb low side 69 72 75 78 81 84 87 90 93 high side 208 222 237 251 266 280 295 310 324 ...

  • Page 18

    Page 16 manual 2100-292 table 14 – cthac421 indoor section return air temperature pressure 75 80 85 90 95 100 105 110 115 fcp42 75° db/62° wb low side 68 70 72 75 77 79 81 84 86 high side 184 199 215 231 247 263 278 294 310 80° db/67° wb low side 73 75 77 80 82 84 86 89 91 high side 188 204 221 237 ...

  • Page 19

    Page 17 manual 2100-292 low side pressure ± 2 psig high side pressure ± 5 psig tables are based upon rated cfm (airflow) across the evaporator coil. If there is any doubt as to correct operation charge being in the system, the charge should be removed, system evacuated, and recharged to serial plate...