Bard I36Z1-A Installation Instructions Manual

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Bard I36Z1-A Installation Instructions Manual Manual pdf 20 page image

Manual 2100-578EPage 20 of 41INSTAllATION INSTRUCTIONSMOUNTING THE UNITThe wall sleeve is attached to the I-TEC unit from theoutside of the building. See Figures 9A & 9B. Referto wall sleeve Manual 2100-562 supplied with sleeve.Following are the steps for attaching the I-TEC to thewall sleeve.1. Lift the unit into place making sure that it isaligned side to side. Align unit with rubber mat.2. Push the unit back until the rear panel touchesthe sleeve gasket.3. This unit must be level from side to side andfrom front to back. If adjustments are necessary,shim up under the base rails with sheets of metalor any substance not affected by moisture.4. Attach the sleeve to the unit using the ten (10) ¾"long self-tapping screws supplied with the sleeve.5. The exhaust sleeve has three (3) ¾" long screw slotsin each side flange. Line these up with the screwengagement holes in the fan panel. Attach using six(6) ¾" long pointed sheet metal screws suppliedwith the sleeve. Extend the sleeve out until it isflush with the louver grill attachment angles.6. Lock the sleeve in place using two (2) ½" longpointed sheet metal screws on each side byshooting through the slot into a pre-punched hole.7. A bottom trim piece is shipped loose forinstallation beneath the doors. Attach the trimpiece to the unit with screws provided.8. The compressor is secured to the base with two(2) bolts for shipping. Both bolts are identifiedwith a tag. Remove shipping bolts (Figure 3).WIRING – MAIN POWERRefer to the unit rating plate and/or Table 2 for wire sizinginformation and maximum fuse or “HACR Type” circuitbreaker size. Each unit is marked with a “Minimum CircuitAmpacity”. This means that the field wiring used must besized to carry that amount of current. Depending on theinstalled KW of electric heat, there may be two field powercircuits required. If this is the case, the unit serial plate willso indicate. All models are suitable only for connectionwith copper wire. Each unit and/or wiring diagram will bemarked “Use Copper Conductors Only suitable for at least75°C”. ThESE INSTRuCTIONS MuST BE ADhEREDTO. Refer to the National Electrical Code (NEC) forcomplete current carrying capacity data on the variousinsulation grades of wiring material. All wiring mustconform to NEC and all local codes.The electrical data lists fuse and wire sizes (75°C copper)for all models, including the most commonly used heatersizes. Also shown are the number of field power circuitsrequired for the various models with heaters.The unit rating plate lists a “Maximum Time DelayRelay Fuse” or “HACR Type” circuit breaker that is tobe used with the equipment. The correct size must beused for proper circuit protection, and also to assure thatthere will be no nuisance tripping due to the momentaryhigh starting current of the compressor motor.See “START uP” section for information on threephase scroll compressor start-ups.The field wiring conduit connections are located on the topright-hand corner of the unit with a wire raceway to feedthe wires down to the circuit breaker(s). See Figure 10.FIGURE 10COMPONENT lOCATIONVENT OPTIONCONDENSER COIlWIRE RACEWAYCOMPRESSOREVAPORATOR COIlCONTROl PANElElECTRIC HEATINDOOR blOWEROUTDOOR FANlOW VOlTAGEREFRIGERANT PORT