Carrier 50ZP Series Installation Instructions Manual

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installation instructions

Carrier 50ZP Series Installation Instructions Manual Manual pdf 1 page image

Small Packaged Products2 to 5 TonsAccessory Electric HeatersInstallation InstructionsElectric Heaters 5–20 kWNOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.SAFETY CONSIDERATIONSInstalling and servicing air conditioning equipment can be hazard-ous due to system pressures, electrical components, and fuel gases.Only trained and qualified personnel should install, service, orrepair air conditioning equipment.Untrained personnel can perform basic maintenance functionssuch as cleaning coils, or cleaning and replacing filters. All otheroperations should be performed by trained service personnel.When working on air conditioning equipment, observe precautionsin the literature, on tags, and on labels attached to the unit.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the unit and in instructions ormanuals, be alert to the potential for personal injury.Understand the signal words DANGER, WARNING, and CAU-TION. These words are used with the safety-alert symbol. DAN-GER identifies the most serious hazards which will result inserious injury or death. WARNING signifies a hazard which couldresult in serious injury or death. CAUTION is used to identifyunsafe practices which would result in minor personal injury orproduct and property damage. NOTE is used to highlight sugges-tions which will result in enhanced installation, reliability, oroperation.Follow all safety codes. Wear safety glasses and work gloves.Have a fire extinguisher available.Before proceeding with heater installation, inspect thoroughly forshipping damage. Notify shipper immediately if any damage isfound. Clean all dirt, dust and moisture from heater package.Check for proper clearances of live parts, between phases and toground. Make sure that all required barriers are in place. Checkconductors run in multiple to insure that they are properly wired.Refer to unit installation instructions for complete unit installationdetails. The minimum air quantity for safe electric heater operationis shown in Table 2.Before performing installation, service or maintenance opera-tions on this system turn off all main power switches and/ordisconnects. There may be more than one switch or discon-nect. Turn off accessory heater power switch if applicable.Electrical shock can cause serious injury or death. TAGDISCONNECT SWITCH(S) WITH A SUITABLEWARNING LABEL.INTRODUCTIONThis electric heater series is engineered, designed and listed to beinstalled only in the models shown in Table 1. Before proceeding,verify the heater label for correct voltage and kW requirements.DESCRIPTION AND USAGEThese SPP Electric heaters are to be used per Table 1 in SPPElectric Cooling & Electric Heat Pump units.Table 1—Electric Heater Usage ChartUNIT SIZE50ZP/564A/PA1Z 024–06050ZH/664A/PH1Z 024–060INSTALLATIONHEATER INSTALLATIONNOTE: Thermostat used must be capable of energizing “G”(Indoor Fan) on a call for “W” (Heating). If “G” is not energizedsystem malfunction will occur.1. Open all electrical disconnects and install lock-out tag beforebeginning any installation or service work.2. Check for proper equipment model number from list.3. Verify that unit duct work is installed per base unit instruc-tions.4. Remove top cover of the unit to access heater compartment(See Fig. 1).5. Locate and remove the heater knockout plate in the indoorblower housing (See Fig. 1 & 2).6. Remove electric heater from the packaging. Route control andheater high voltage wire through power and control wiringknockout as shown in Fig. 1.7. Install heater, sliding assembly carefully into heater area in theblower housing (See Fig. 1 & 2). Ensure that mounting holesof heater align with mounting holes on the unit. Secure heaterassembly with screws provided.8. Dress wires with wire ties provided. Route heater wires alongexisting unit wire bundles behind and away from capacitors.9. Fused Units: Remove fuse links of the fuse block, attach fuseblock with screws (2) on mounting holes provided andre-install the fuse links. Attach lid to unit panel with (4)screws provided. Align with existing mounting holes (See Fig.1).10. Non-Fused Units: Adhere schematic in lieu of fused blockinside unit panel (See Fig. 2).11. Install ground lug in mounting hole provided adjacent to 24-v.compartment (See Fig. 2).ELECTRICAL CONNECTION1. Open all electrical disconnects and install lock-out tag beforebeginning any installation or service work.2. All electrical connections, wire sizes and type of conduit shallmeet the National Electric Code and State and Local Codes.Main power supply, minimum wire sizes, circuits, fusing, etc.Cancels: IIK 564A-24-1 IIK 564A-24-211-01Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 1Tab 1b 5a PC 101 Catalog No. 535-00045 Printed in U.S.A. Form 50Z-51SI Pg 1 Replaces: 50Z-1SI→