Mini-Space Series Installation, Operation & Maintenance Manual

Mini-Space Series Installation, Operation & Maintenance Manual2.8.3.1 Condensate PumpSystems supplied with a field installed condensatepump require power and control wiring to be connectedto the unit. After proper installation of the condensatepump, the installer must connect two powerconductors from the condensate pump main powerterminals to the air conditioning unit. A ground wiremust be connected to the unit ground stud locatedwithin the unit electric box.Two control conductors must be wired to the controlterminal board located within the A/C unit electricbox. The control wires from the terminal board inthe electric box should be run through the overflowswitch in the condensate pump housing. The condensatepump is equipped with pigtail leads for splicetypewire connections with twist-on connectors (wirecaps). Refer to the electrical schematic supplied withyour unit for proper wire terminations.2.8.3.2 Remote Temperature/Humidity SensorEach remote temperature/humidity sensor requires athree conductor shielded cable with the shield beingterminated at the unit electric box. Both the electricbox and the sensor include a terminal strip with boxtype lugs for wire connections. Refer to the electricaldrawing supplied with your unit for proper wireterminations.2.8.3.3 Remote Water DetectorEach remote water detector used will require twoconductors to be wired to the control terminal boardwithin the unit electrical box. The wire insulation mustbe rated at 600V. Refer to the electrical drawing suppliedwith your unit for proper wire terminations.2.8.4 Split SystemsThe following system interconnecting field wiringsections detail the number of conductors required fora typical system. Additional control conductors maybe required depending on the options purchased withthe equipment. Refer to the supplied electrical schematicto determine the total number of interconnectingconductors required for your system. It is importantto note that the control transformer(s) suppliedwith the equipment have been sized and selectedbased upon the expected loads for each system.CAUTIONDo not connect any additional loads to thesystem control transformers. Connecting additionalloads to the factory supplied controltransformer(s) may result in overloading ofthe transformer(s).NOTEAll wiring must be provided in accordance with localand national electrical code requirements.2.8.4.1 Remote CondenserSystems equipped with a remote condenser willrequire fi eld wiring between the A/C unit and theremote condenser (see Figure 11). Refer to theelectrical drawing supplied with your unit and thewiring diagram supplied with the condenser (typicallylocated in the condenser electric box). The installermust provide main power wiring to the main powerdistribution block located within the remote condensercontrol box. A separate equipment ground lugis provided within the electrical box for termination ofthe earth ground wire.The installer must also wire control conductors fromthe terminal board within the A/C unit to the controlterminal board within the remote condenser electricbox. Refer to the electrical drawing for the correctnumber of fi eld wires needed and for the appropriatewire terminations required for your specifi c unit.2.8.4.2 Glycol SystemsSystems equipped with a glycol-cooled system/pumppackage require fi eld wiring between the glycol unitand pump package (see Figure 12). The installermust wire two control conductors from the terminalboard within the glycol unit, to the pump packageelectrical box. Refer to the electrical drawing suppliedwith your unit for the number of fi eld wires neededand appropriate wire terminations required for yourspecific system.(©April, 2008)2-12Air Technology Systems, Inc.