York DNH 030 Installation Manual

Also see for DNH 030: Technical guide Installation manual

York DNH 030 Installation Manual Manual pdf 4 page image

282911-YIM-B-08074 Unitary Products GroupINSTALLATIONLIMITATIONSThese units must be installed in accordance with the follow-ing national and local safety codes.1. National Electrical Code ANSI/NFPS No. 70 or CanadianElectrical Code Part 1, C22.1 (latest editions).2. National Fuel Gas Code Z223.1 or CAN/CGA B149.1or.2 Installation Code.3. Local gas utility requirements.4. Local plumbing and waste water codes and other appli-cable local codes.Refer to Table 1 for unit application data and to Table 2 forgas heat application data.If components are to be added to a unit to meet local codes,they are to be installed at the dealer's and/or the customer'sexpense.Size of unit for proposed installation should be based on heatloss/heat gain calculations made in accordance with industryrecognized procedures identified by the Air ConditioningContractors of America.LOCATIONUse the following guidelines to select a suitable location forthese units.1. Unit is designed for outdoor installation only.2. Condenser must have an unlimited supply of air. Wherea choice of location is possible, position unit on eithernorth or east side of building.3. For ground level installation, a level pad or slab shouldbe used. The thickness and size of the pad or slab usedshould meet local codes and unit weight. Do not tie theslab to the building foundation.4. For roof top installation, be sure the structure will supportthe weight of the unit plus any field installed components.Unit must be installed on a level roof curb or appropriateangle iron frame providing adequate support under thecompressor/condenser section.5. Maintain level tolerance of unit to 1/8" maximum.RIGGING OR HANDLINGCare must be exercised when moving the unit. Do notremove any packaging until the unit is near the place ofinstallation. Rig unit with slings placed under the unit.Spreader bars of sufficient length should be used across thetop of the unit.Units may also be moved or lifted with a fork-lift. Slottedopenings in the skid are provided for this purpose. Forksmust pass completely through the base.Refer to Table 2 for unit weights and to Figure 2 for approxi-mate center of gravity.TABLE 1: UNIT APPLICATION DATAVoltage VariationMin. / Max.11. Rated in accordance with ARI Standard 110, utilization range“A”.208/230V22. “T1” transformer primary tap must be moved from the 230 voltconnection to the 208 volt connection for low voltage applica-tions of 208 volt and below187 / 253460V 414 / 504Wet Bulb Temperature (°F) of Air onEvaporator Coil, Min. / Max. 57 / 72Dry Bulb Temperature (°F) of Air onCondenser Coil, Min.3 / Max.3. A low ambient accessory is available for operation down to 0 °F.45 / 120Excessive exposure of this furnace to contami-nated combustion air may result in equipmentdamage or personal injury. Typical contaminantsinclude: permanent wave solution, chlorinatedwastes and cleaners, chlorine based swimmingpool chemicals, water softening chemicals, carbontetrachloride, halogen type refrigerants, cleaningsolvents (e.g. perchloroethylene), printing inks,paint removers, varnishes, hydrochloric acid,cements and glues, antistatic fabric softeners forclothes dryers, masonry acid washing materials.Before lifting a unit, make sure that its weight is dis-tributed equally on the cables so that it will liftevenly.