York ZT078-102 Installation Manual

Also see for ZT SERIES: Technical guide

6021980-UIM-A-11206 Johnson Controls Ducted SystemsFigure 3: Compressor section4. If a factory option convenience outlet is installed, you mustinstall the weatherproof outlet in the field. The cover islocated behind the filter access panel.a. Remove the shipping label that covers the convenienceoutlet.b. Follow the instructions on the back of the weatherproofcover box.c. Attach the cover to the unit with the four (4) screwsprovided.LimitationsThese units must be installed in accordance with the following:In the U.S.A.:1. National Electrical Code, ANSI/NFPA No. 70 - LatestEdition2. National Fuel Gas Code, ANSI Z223.1 - Latest Edition3. Gas-Fired Central Furnace Standard, ANSI Z21.47a. -Latest Edition4. Local building codes, and5. Local gas utility requirementsIn Canada:1. Canadian Electrical Code, CSA C22.12. Installation Codes, CSA - B149.1.3. Local plumbing and waste water codes, and4. Other applicable local codes.Refer to the unit application data found in this document.After installation is complete, you must adjust gas fired units toobtain a temperature rise within the range specified on the unitrating plate.If components are added to a unit to meet local codes, they areinstalled at the dealer’s and/or customer’s expense.The size of the unit for the proposed installation must be basedon a heat loss/heat gain calculation made according to themethods of the Air Conditioning Contractors of America(ACCA).This furnace is not to be used for temporary heating of buildingsor structures under construction.208/230-3-60 units with a factory installed poweredconvenience outlet option are wired for a 230v powersupply. Change the tap on the transformer for 208-3-60operation. See the unit wiring diagram.ToollessDoorknobsInstallationInstructionPacketThe Smart Equipment™ control board used in thisproduct can effectively operate the cooling system downto 0°F when this product is applied in a comfort coolingapplication for people. An economizer is typicallyincluded in this type of application. When you apply thisproduct for process cooling applications (such ascomputer rooms or switchgear), please call theapplications department for Ducted Systems @ 1-877-874-SERV for guidance. Additional accessories may beneeded for stable operation at temperatures below 30°F.