Carrier 48/50HJ004-014 - Manuals

11 Step 5 — Install Flue Hood (48HJ Rooftop Sec-tions Only) — Refer to the 48HJ installation instructions for information on installing the flue hood. Step 6 — Install Gas Piping (48HJ Rooftop Sec-tions Only) — Refer to the 48HJ installation instructions for information on installing the gas piping....

13 NOTE: For wire runs up 50 ft, use no. 18 AWG (American WireGage) insulated wire (35 C minimum). For 50 to 75 ft, use no.16 AWG insulated wire (35 C minimum). For over 75 ft, use no.14 AWG insulated wire (35 C minimum). All wire larger thanno. 18 AWG cannot be directly connected to the thermostat ...

27 LEGEND Fig. 7 — Power Wiring Connections C — Contactor COMP — Compressor IFC — Indoor-Fan Contactor NEC — National Electrical Code TB — Terminal Block 208/230-1-60 208/230-3-60 460-3-60 (SIZE 007 ONLY) 575-3-60 (SIZE 007 ONLY) 208/230-3-60 575-3-60, 460-3-60 (SIZES 004-006) 208/230-3-60 AND 460-3...

28 Step 9 — Assemble and Mount Supply-AirHood — The hood kit supplied with the energy recovery section is needed to complete this installation. See Fig. 11. Theenergy recovery section supply air hood installs around itsmotorized damper inlet. 1. Assemble and mount supply air hood as shown in Fig. 11...

29 Step 11 — Set the Outdoor Cooling and Heat-ing Thermostats COOLING — During the unoccupied period, the economizermode of operation is used as the first stage of cooling. Whenthe outside air temperature is below the cooling thermostat setpoint, the outside air will be used for first stage cooling....

30 LIGHT COMMERCIAL THERMIDISTAT ACCESSORY General — A Light Commercial Thermidistat Accessory (part number TSTATCCPLH01-B) or PremierLink™ control-ler with humidistat is required for each unit for field installationto control the energy recovery section. See Fig. 13. The Light Commercial Thermidist...

31 Step 3 — Install Light Commercial Thermidistat 1. Turn off all power to equipment. Tag disconnect.2. If an existing thermostat is being replaced: a. Remove existing thermostat from wall.b. Disconnect wires from existing thermostat, one at a time. c. As each wire is disconnected, record wire color...

36 ROOM AIR SUPPLY AIR MIXED AIR CONDENSER COMPRESSOR EV APORA TO R EVAPORA TOR ROOFTOP UNIT ROOF LINE OUTSIDE AIR EXHAUST AIR ENERGY RECOVERY SECTION Fig. 17 — Unit Operation Flow Diagram Fig. 18 — Fuse Box (48HJ012, 014 — 208/230-3-60 Units Only)

38 TROUBLESHOOTING Use Tables 3 and 4, and Fig. 19 and 20 when troubleshooting this unit. C — Contactor CAP — Capacitor CER — Compressor Energy Recovery section CH — Crankcase Heater CLO — Compressor Lockout COC — Cool Changeover Relay COH — Heat Changeover Relay COMP — Compressor Motor CR — Cooling...

40 TB - 1 R Y1 Y2 W1 W2 G C X 1 2 3 4 5 6 7 8 TB - 3 1 2 3 4 5 6 7 8 TB - 2 1 2 3 4 5 6 7 8 J6 ANAL O G J5 0 - 20 m A IN J4 DISCRE T E J1 PWR J2 COMMS J9 0-20 mA J8 Relays HK50AA039 BRN BRN WHT WHT RED PNK PNK ORN ORN ORN ORN GRA GRA ORN RED J7 PP/MP RED BLK PNK WHT BLU ORN YEL GRN BRN BRN RED BRN B...

CL-1 ROOFTOP UNIT (RTU) AND ENERGY RECOVERY SECTION (62AQ) START-UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMATION RTU 62AQ II. PRE-START-UP (insert checkmark in box as each item is completed) VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS CHECK ALL...

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 111 Catalog No. 534-80122 Printed in U.S.A. Form 48/50HJ,62AQ-2SIS Pg CL-2 9-02 Replaces: 48/50HJ,62AQ-1SIS Copyright 2002 Carrier Cor poration - - - ...