Carrier WeatherExpert 48JC04 Скачать руководство пользователя | Manualshive

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Fig. 47 —

48JC 04-06 Power Wiring Diagram, 208/230, 460V Unit Shown

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Содержание WeatherExpert 48JC04

Страница 1: ...Speed Set Up 30 SYSTEMVU CONTROLS START UP CHECKLIST CL 1 SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agen...

Страница 2: ... protective clothing safety glasses and gloves when handling parts and servicing air conditioning equipment WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow instructions could result in severe person al injury or death due to carbon monoxide poisoning if combustion products infiltrate into the building Check that all openings in the outside wall around the vent and air intake pipe s are ...

Страница 3: ...uvered Hail Guard N Precoat Al Cu Al Cu Louvered Hail Guard P E coat Al Cu Al Cu Louvered Hail Guard Q E coat Al Cu E coat Al Cu Louvered Hail Guard R Cu Cu Al Cu Louvered Hail Guard S Cu Cu Cu Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revision Factory Design Revision Base Unit Controls 3 SystemVu Controls Standard all units Air Intake Exhaust Options A None B Temp...

Страница 4: ...4 Fig 2 Unit Dimensional Drawing ...

Страница 5: ...5 Fig 2 Unit Dimensional Drawing cont ...

Страница 6: ...6 Fig 2 Unit Dimensional Drawing cont ...

Страница 7: ...pport method used for this unit will dictate different se quences for the steps of unit installation For example on curb mounted units some accessories must be installed on the unit before the unit is placed on the curb Review the following for recommended sequences for installation steps CURB MOUNTED INSTALLATION 1 Install curb 2 Install field fabricated ductwork inside curb 3 Install accessory t...

Страница 8: ... ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS SIZE DRAWING NUMBER REV T 005 Y 002 DRAFTER CHECKER D 48TC400427 B WEIGHT MMC 06 17 11 SHEET 5 OF 5 SURFACE FINISH MFG PURCH MODEL INTERNAL USE ONLY NEXT DRAWING SCALE DISTRIBUTION PURCH N A MMC NOTES 1 ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED 2 INSULATED PANELS 25 4 1 THK POLYURETHANE FOAM 44 5 1 3 4 DENSITY 3 DIMENSIONS IN ARE IN MILLIMETERS ...

Страница 9: ...rn is used on a vertical unit the return should be ducted through the roof deck to comply with applicable fire codes A minimum clearance is not required around ductwork Step 6 Rig and Place Unit Keep unit upright and do not drop Spreader bars are required Rollers may be used to move unit across a roof Rigging materi als under unit cardboard or wood must be removed PRIOR to placing the unit on the ...

Страница 10: ...the basepan Seals around duct openings must be tight Secure with screws as shown in Fig 8 Cover seams with foil duct tape Field supplied flanges should be attached to horizontal duct openings and all ductwork should be secured to the flanges In sulate and weatherproof all external ductwork joints and roof or building openings with counter flashing and mastic in accor dance with applicable codes Do...

Страница 11: ...conomizer Hood Parts Location 3 Carefully lift the hood assembly with metal tray through the filter access opening and assemble per the steps out lined in the following section Economizer Hood ECONOMIZER HOOD NOTE If the power exhaust accessory is to be installed on the unit the hood shipped with the unit will not be used and must be discarded Save the aluminum filter for use in the power exhaust ...

Страница 12: ... 15 Fig 15 Flue Hood Details Step 11 Install Gas Piping Installation of the gas piping must be accordance with local building codes and with applicable national codes In U S A re fer to NFPA 54 ANSI Z223 1 National Fuel Gas Code NFGC In Canada installation must be accordance with the CAN CSA B149 1 and CAN CSA B149 2 installation codes for gas burning appliances This unit is factory equipped for u...

Страница 13: ...AS CONNECTIONS This service connection kit consists of a 1 2 in electrical bulkhead connector and a 3 4 in electrical bulkhead connector connected to an L bracket covering the embossed raised section of the unit basepan in the condenser section see Fig 17 for shipping position The 3 4 in bulkhead connector enables the low voltage control wires to pass through the basepan The 1 2 in bulkhead connec...

Страница 14: ... Other hardware required to complete the installation of the gas supply line includes a manual shutoff valve a sediment trap drip leg and a ground joint union A pressure regulator valve may also be required to convert gas pressure from pounds to inches of pressure The manual shutoff valve must be located within 6 ft 1 83 m of the unit The union located in the final leg entering the unit must be lo...

Страница 15: ...ly opening the ground joint union Check for gas leaks at the field installed and factory installed gas lines after all piping connections have been completed Use soap and water solution or method specified by local codes and or regulations NOTE If orifice hole appears damaged or it is suspected to have been redrilled check orifice hole with a numbered drill bit of cor rect size Never redrill an or...

Страница 16: ...d option non fused dis connect switch or HACR Maximum wire size is 2ga AWG copper only per pole on contactors and 2ga AWG copper only see Fig 26 per pole on optional disconnect or HACR See Fig 27 and unit label diagram for field power wiring con nections NOTE Unit may be equipped with short test leads pigtails on the field line connection points on contactor C or optional discon nect switch These ...

Страница 17: ... the left 10 Secure the handle to the painted cover with 2 screws and lock washers supplied 11 Engaging the shaft into the handle socket re install 3 hex screws on the NFD enclosure 12 Re install the unit front panel Fig 28 NFD Enclosure Location Fig 29 NFD Handle and Shaft Assembly Field Install the HACR Shaft and Handle 1 Remove the control box access panel The HACR enclo sure is located below t...

Страница 18: ...former must be rewired by moving the black wire with the 1 4 in female spade connector from the 230v connection and moving it to the 200v 1 4 in male terminal on the primary side of the transformer Refer to unit label diagram for additional information Field power wires will be connected at line side pressure lugs on the power terminal block or at factory installed option non fused disconnect NOTE...

Страница 19: ...ormer primary leads can be connected at the line side terminals on the unit mounted non fused disconnect or HACR breaker switch this will provide service power to the unit when the unit disconnect switch or HACR switch is open Other connection methods will result in the convenience outlet circuit being de energized when the unit disconnect or HACR switch is open See Fig 36 Using Unit Mounted Conve...

Страница 20: ...TS WITHOUT THRU BASE CONNECTIONS ELEC TRICAL CONNECTIONS 1 Install power wiring conduit through side panel openings Install conduit between disconnect and control box 2 Install power lines to terminal connections as shown in Fig 27 on page 17 Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate On 3 phase units voltages between phases must be ba...

Страница 21: ...B5 1 Sensor Input TB5 2 Sensor Common TB5 3 Setpoint Offset Input Fig 40 Space Temperature Sensor Typical Wiring 33ZCT59SPT ZS Space Sensors The ZS Standard Plus or Pro can be wired into J20 or J24 of the SystemVu controller J20 provides an easy field connection plug A maximum of 5 ZS sensors can be connected but a sep arate power supply may be needed Use the ZS SENSOR CFG menu SETTINGS NETWORK SE...

Страница 22: ...3 m use no 14 AWG in sulated wire 95 F 35 C minimum Wire sizes larger than no 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat Fig 42 Low Voltage Thermostat Connections Thermostat Wiring Units Without Thru Base Connection Kit Pass the thermostat control wires through the hole provided in the corner post then feed the wires through t...

Страница 23: ...supplied through the hole provided in the unit corner post 2 Feed wires through the raceway built into the corner post see Fig 43 to the 24v barrier located on the left side of the control box The raceway provides the UL required clearance between high voltage and low voltage wiring 3 Connect one of the leads from the 2 conductor cable to the Y3 terminal on the SystemVu MBB Main Base Board Connect...

Страница 24: ...24 Fig 46 48JC 04 06 Control Wiring Diagram ...

Страница 25: ...25 Fig 47 48JC 04 06 Power Wiring Diagram 208 230 460V Unit Shown ...

Страница 26: ...26 Fig 48 48JC 04 06 Power Wiring Diagram 575V Unit Shown ...

Страница 27: ...e over temperature limit opens prior to the start of the indoor fan blower the IGC will shut down the burners and the control will shorten the 45 second delay to 5 seconds less than the time to trip the limit For example if the limit trips at 37 seconds the control will change the fan on delay from 45 seconds to 32 seconds Once the fan on delay has been modified it will not change back to 45 secon...

Страница 28: ...reset for LED reset The IGC sensed a flame when the gas valve should be closed Check wiring flame sensor and gas valve operation 4 Flashes Four Consecutive Limit Switch Fault No gas heating Heat call W Off Power reset for LED reset 4 consecutive limit switch faults within a single call for heat See Limit Switch Fault 5 Flashes Ignition Fault No gas heating Heat call W Off Power reset for LED reset...

Страница 29: ...its equipped with factory installed optional return air smoke detectors require a relocation of the sensor module at unit in stallation See Fig 51 for the as shipped location Completing Return Air Smoke Sensor Installation 1 Unscrew the two screws holding the Return Air Smoke Detector assembly See Fig 52 Step 1 Save the screws 2 Turn the assembly 90 degrees and then rotate end to end Make sure tha...

Страница 30: ... the Fan Speed Set Up labels see Fig 53 calculate the RPM from the CFM and ESP for the base unit plus any field accessories as listed on the label NOTE The fan speed set up labels are located on the High Volt age cover in the Control Box 3 Press any key on the SystemVu interface to activate the display backlight and then press the MENU key 4 Using the UP and DOWN arrow keys highlight SET TINGS and...

Страница 31: ...512 1601 1692 1784 1878 1973 2069 2166 1500 1625 1750 1875 2000 2125 2250 2375 65 0 4 1609 1688 1768 1850 1933 2018 2104 2192 2282 65 0 6 1764 1839 1916 1994 2073 2153 2235 2317 0 8 1902 1974 2047 2123 2200 2277 2356 65 1 0 2028 2097 2168 2241 2316 65 1 2 2147 2212 2280 2351 65 1 4 2260 2322 2387 65 1 6 1 8 2 0 2367 65 65 UNIT MODEL NUMBER ...

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Страница 34: ... the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480282 01 Printed in U S A Form 48JC 4 6 01SI Pg 34 5 2020 Replaces New 2020 Carrier ...

Страница 35: ...Verify gas pressure to unit gas valve is within specified range Y N _____ Check gas piping for leaks Y N _____ Check that indoor air filters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y N _____ Verify that unit is level Y N _____ Verify that fan assembly is free of obstructions and rotor spins freely Y N _____ Verify that scroll compressors are rotating in t...

Страница 36: ...ir temperature _______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as condenser coil warms Y N _____ 3 Switch unit to high latent mode sub cooler by closing humidistat with Y1 closed Y N _____ 4 Check unit charge per charging chart Y N _____ OBSERVE A Reduction in...

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