17Step 2 — Check Unit — Upon receipt of shipment atthe jobsite, carefully check the shipment against the bill of lad-ing. Make sure all units have been received. Inspect the cartonor crating of each unit, and inspect each unit for damage. En-sure the shipping company makes proper notation of any short-ages or damage on all copies of the freight bill. Concealeddamage not discovered during unloading must be reported tothe shipping company within 15 days of receipt of shipment.NOTE: It is the responsibility of the purchaser to file all neces-sary claims with the shipping company.STORAGEUpon the arrival of equipment at the jobsite, immediatelystore units in their shipping cartons in a clean, dry area. Storeunits in an upright position at all times. Stack units a maxi-mum of 3 units high. Use pallets to separate each layer ofunits. DO NOT remove equipment from shipping cartonsuntil equipment is required for installation.UNIT PROTECTION — Cover console units on the jobsitewith either shipping cartons, vinyl film, or an equivalentprotective covering. Cap the open ends of pipes stored on thejobsite. In areas where painting, plastering, or the spraying offireproof material has not been completed, all due precautionsmust be taken to avoid physical damage to the units and con-tamination by foreign material. Physical damage and contami-nation may prevent proper start-up and may result in costlyequipment clean-up.Examine all pipes, fittings, and valves before installing anyof the system components. Remove any dirt found on thesecomponents.Step 3 — Mount Unit1. Unpack the unit from the shipping carton. Remove thefront cabinet by lifting up and away from the backplate.Protect the cabinet from damage during installation by re-turning it to its original vinyl pack until required.2. Remove compressor isolation plate shipping bolts (4), asshown in Fig. 15.3. Using a carpenter’s square and a level, ensure the unitis level. Shim the unit if necessary to assure properinstallation.Poor or inadequate installation may result in noisyunit operation or unattractive appearance.4. Select the proper fasteners to connect the backplate se-curely to the wall.5. Fasten the backplate onto the wall through the screw holeslocated in the back flange. Secure the subbase in place.Step 4 — Wire Electrical ConnectionsAll field-installed wiring, including the electrical ground,MUST comply with National Electrical Code (NEC) as well asall applicable local codes. In addition, all field wiring mustconform to the Class II temperature limitations described in theNEC.Consult the unit wiring diagram located on the inside of thecompressor access panel to ensure proper electrical hookup. Theinstalling (or electrical) contractor must make the field connec-tions shown in Fig. 16 when using field-supplied disconnect.Refer to unit wiring diagrams Fig. 17-29 for a schematic ofthe field connections, which must be made by the installing (orelectrical) contractor. Operating voltage must be within voltagerange shown in Table 2.Make all final electrical connections with a length of flexi-ble conduit to minimize vibration and sound transmission tothe building.SUPPLY VOLTAGE — Operating voltage to unit must bewithin voltage range indicated on unit nameplate.EXTERNAL LOOP POWER CONNECTION — If the unitwill be connected to an external loop pump or flow controller,connect the pump to the loop pump terminal block PB1. Themaximum power handling is 4 amps at 240-v. The pumps willautomatically cycle as required by the unit.230-V OPERATION — All 208/230-v units are factory-wired for 208-v. The transformer wiring may be switched for230-v operation (as illustrated on the wiring diagrams) byswitching the RED and ORG leads at L1.CAUTIONDO NOT store or install console units in corrosive environ-ments or in locations subject to temperature or humidityextremes (e.g., attics, garages, rooftops, etc.). Corrosiveconditions and high temperature or humidity can signifi-cantly reduce performance, reliability, and service life.Always move units in an upright position. Tilting units ontheir sides may cause equipment damage.WARNINGTo avoid possible injury or death due to electrical shock,open the power supply disconnect switch and secure it inan open position during installation.CAUTIONUse only copper conductors for field-installed electricalwiring. Unit terminals are not designed to accept othertypes of conductors.SHIPPINGBOLTSFig. 15 — Remove 4 Shipping Bolts onCompressor Isolator PlateFIELD SUPPLIEDDISCONNECT SWITCHROOM THERMOSTATHEAT PUMPABA = Two power wires for single-phase units.B = 1 heat/1 cool/manual or auto changeover remote 24-V thermostat.NOTE: All customer-supplied wiring to be copper only and must conform to national and local electrical codes. Wiring shown with dashed lines must befield-supplied and field-installed. “B” wiring only required with systems using remote-mounted thermostats.Fig. 16 — Typical Field-Installed WiringWARNINGDisconnect electrical power source to prevent injury or death from electri-cal shock.CAUTIONUse copper conductors only to prevent equipment damage.