Carrier 38APS025-065 Installation Instructions Manual

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Carrier 38APS025-065 Installation Instructions Manual Manual pdf 32 page image

32Legend and Notes for Fig. 21-27LEGENDNOTES:1. Factory wiring is in accordance with UL 1995 standards. Fieldmodifications or additions must be in compliance with all appli-cable codes.2. All units or modules have single point primary power connec-tion. Main power must be supplied from a field or factory-sup-plied disconnect.3. Wiring for main field supply must be rated 75 C. Use copperconductors only.4. Incoming wire size range for terminal block with MCA (minimumcircuit amps) up to 175 amps is 14 AWG (American Wire Gage)to 2/0.5. Incoming wire size range for terminal block with MCA from175.1 amps to 420 amps is 2 AWG to 600 kcmil.6. Incoming wire size range for non-fused disconnect with MCAup to 100 amps is 14 AWG to 1/0.7. Incoming wire size range for non-fused disconnect with MCAfrom 100.1 amps to 200 amps is 6 AWG to 350 kcmil.8. Incoming wire size range for non-fused disconnect with MCAfrom 200.1 amps to 450 amps is 3/0 to 500 kcmil.9. Terminals 1 and 2 of the LVT are for the alarm relay. The maxi-mum load allowed for the alarm relay is 5 va sealed and 10 vainrush at 24 v. Field power supply is not required.10. Refer to certified dimensional drawings for exact locations ofthe main power and control power entrance locations.11. Terminals 24, 25, and 2 of the LVT are for control of the field-supplied LLSV. The maximum load allowed for each LLSV is40 va at 24 v. Field power supply is not required.12. All discrete inputs are 24 vac.13. LLSV (24-v) should be 40 va maximum per valve as required.14. Installation of fan status switch (FS1) is recommended.15. The contacts for remote ON/OFF, fan status, and demand limitoptions must be rated for dry circuit application capable of han-dling a 24-vac load up to 50 mA.Fig. 25 — Optional Energy Management Module Wiringa38-712925242322212019181716151413LVTTERMINALSTRIP121110987654321DEMAND LIMIT STEP 1DEMAND LIMIT STEP 2DEMANDLIMIT4-20 mA+–COOLINGSETPOINT/CAPACITYREQUESTED4-20 mA+–TEMPRESET4-20 mA+–ALM R — Alarm Relay (24-v), 5-va MaximumCOOL1 — Thermostat Stage 1 (24-v)COOL2 — Thermostat Stage 2 (24-v)EAT — Evaporator Air Temperature SensorEMM — Energy Management ModuleFS1 — Fan Status Switch (24-v)IFC — Indoor Fan ContactorLLSV — Liquid Line Solenoid ValveLVT — Low Voltage TerminalMAT — Mixed Air Temperature SensorNEC — National Electrical CodeRAT — Return Air Temperature SensorSA — Set Point Adjustment (T-56, T-59)SAT — Supply Air Temperature SensorSPT — Space Temperature Sensor (T-55, T-56, T-59)TB — Terminal BlockTSTAT — ThermostatField Power SupplyField Control Wiring