Carrier REFRIGERANT R-410A- Manuals

5 Table 1A — 40RUA Physical Data, English — Cooling Units LEGEND UNIT 40RUA* 25 28 30 NOMINAL CAPACITY (Tons) 20 25 30 OPERATING WEIGHT (lb) Base Unit with TXV 730 1050 1062 Plenum 225 325 325 FANS Qty...Diam. (in.) 2...15 2...18 2...18 Nominal Airflow (cfm) 8,000 10,000 12,000 Airflow Range (cfm) 6...

6 Table 1B — 40RUA Physical Data, SI — Cooling Units LEGEND UNIT 40RUA* 25 28 30 NOMINAL CAPACITY (kW) 70 87 105 OPERATING WEIGHT (kg) Base Unit with TXV 331 477 482 Plenum 102 148 148 FANS Qty...Diam. (mm) 2...381 2...457 2...457 Nominal Airflow (L/s) 3775 4119 5663 Airflow Range (L/s) 2831 – 4719 ...

7 Table 1C — 40RUS Physical Data, English — Chilled Water Units LEGEND UNIT 40RUS* 25 28 30 NOMINAL CAPACITY (Tons) 20 25 30 OPERATING WEIGHT (lb) Base Unit 683 1035 1042 Plenum 225 325 325 FANS Qty...Diam. (in.) 2...15 2...18 2...18 Nominal Airflow (cfm) 8,000 10,000 12,000 Airflow Range (cfm) 6,00...

8 Table 1D — 40RUS Physical Data, SI — Chilled Water Units LEGEND UNIT 40RUS* 25 28 30 NOMINAL CAPACITY (kW) 70 87 105 OPERATING WEIGHT (kg) Base Unit 310 469 473 Plenum 102 148 148 FANS Qty...Diam. (mm) 2...381 2...457 2...457 Nominal Airflow (L/s) 3775 4719 5663 Airflow Range (L/s) 2831 – 4719 353...

9 Fig. 3 — Model Number Nomenclature Fig. 4 — Serial Number Nomenclature Unit Positioning — The unit can be mounted on the floor for vertical application with return air entering the face ofthe unit and supply air discharging vertically through the top ofthe unit. The unit can also be applied in a h...

10 Fig. 6 — Preferred Suspension Technique OVERHEAD SUSPENSION ACCESSORY UNIT SIZE 25 UNIT SIZES 28, 30 NOTE: Dimensions in [ ] are millimeters

11 Unit Isolation — Where extremely quiet operation is essential, install isolators between floor and base of unit, orbetween ceiling and top section of unit.Be sure that unit is level and adequately supported. Usechannels at front and sides of unit for reference points whenleveling. Refrigerant and...

12 Fig. 8 — Face-Split Coil Suction and Liquid Line Piping (Typical) Fig. 9 — Typical Evaporator Coil Connections (40RU) Fig. 10 — TXV Sensing Bulb Location LEGEND: TXV – Thermostatic Expansion Valve NOTE: Component location arrangemet shown for field installation of sight glasses, solenoid valves, ...

15 Chillled Water Piping — See Tables 1C and 1D for chilled water connecton sizes. For ease in bazing, it it recom-mended that all internal solder joints be made before unit isplaced in final position.Knockouts are provided in the unit corner posts for 40RUS re-frigerant piping. Additional field-fab...

16 Condensate Drain — Install a trapped condensate drain line to unit connection as shown in Fig. 12. The unit drain con-nection is a PVC stub. See Fig. 13. Some areas may require anadapter to connect to either galvanized steel or copper pipe.For these applications, install a field-supplied threaded...

17 Power Supply and Wiring — Check the unit data plate to ensure that available power supply matches electricalcharacteristics of the unit. Provide a disconnect switch with anintegrated lock-out feature of size required to provide adequatefan motor starting current. See Tables 4-6 for unit electrica...

18 Table 4 — Electrical Data, Standard Motors See Legend and Notes below. Table 5 — Electrical Data, Alternate Motors See Legend and Notes below. Legend and Notes For Tables 4 and 5 UNIT V-PH-Hz † VOLTAGE LIMITS FAN MOTOR POWER SUPPLY Hp (kW) FLA Minimum Circuit Amps MOCP 40RUA*25 40RUS*25 208/230-3...

19 Fig. 17 — Unit Wiring LEGEND NOTE: Use copper conductors only. EQUIP — Equipment GND — Ground HC — Heating Contactor HTR — Electric Heater IFC — Indoor-Fan Contactor IFM — Indoor-Fan Motor TB — Terminal Block T’STAT — Thermostat Factory Wiring Field Control Wiring

20 Table 6 — Fan Contactor Coil Data Connecting Ductwork — Refer to the Carrier System Design Manual for the recommended design and layout ofductwork. Fig. 18 shows recommended duct connection tounits with 2 fans. DISCHARGE CONNECTIONS — Duct flanges are factory-supplied; they are shipped inside the...

21 Fig. 19 — Duct Flange Installation START-UP Before starting unit, check the following and correct asnecessary: • Is unit solidly supported?• Is fan adjusted for speed and pulley alignment?• Are pulleys, motor, and bearings securely mounted?• Are there any loose parts that will rattle or vibrate?•...

22 Centering Fan Wheel — If fan and fan shaft assembly are not properly centered, blades may scrape against the blowerside scroll plate or may create an objectionable whistling noise.It may be necessary to adjust individual fan wheels or move en-tire fan shaft. See the following two sections. Fan Sh...

24 Replacing Filters — Filters can be removed and in- stalled from either side of the unit. Install new filters in unitsthat have one fan as follows: 1. Remove the side access panel (retain screws).2. Remove the filter retainer clip (see Fig. 25).3. Remove old filters by lifting and tilting them out...

31 Table 10B — 40RU Standard Fan Performance Data — 0-600 kPa External Static Pressure — SI See Legend and Notes on page 34. Table 10B — 40RU Standard Fan Performance Data — 0-600 kPa External Static Pressure — SI (cont) See Legend and Notes on page 34. UNIT AIRFLOW (L/s) EXTERNAL STATIC PRESSURE (k...

32 Table 10C — 40RU High-Capacity Fan Performance Data — 0.0-2.4 in. wg External Static Pressure — English See Legend and Notes on page 34. Table 10C — 40RU High-Capacity Fan Performance Data — 0.0-2.4 in. wg External Static Pressure — English (cont) See Legend and Notes on page 34. UNIT AIRFLOW (Cf...

33 Table 10D — 40RU High-Capacity Fan Performance Data — 0-600 kPa External Static Pressure — SI See Legend and Notes on page 34. Table 10D — 40RU High-Capacity Fan Performance Data — 0-600 kPa External Static Pressure — SI (cont) See Legend and Notes on page 34. UNIT AIRFLOW (L/s) EXTERNAL STATIC P...

Copyright 2009 Carrier Corp • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in Mexico Edition Date: 09/09 Catalog No: 40RU-03SI Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: New 34 Legend and Notes for Table...

CL-1 START-UP CHECKLIST (SPLIT SYSTEMS WITH 40RU UNITS) I. PRELIMINARY INFORMATION OUTDOOR: MODEL NO. _________________________ SERIAL NO. ___________________________________ INDOOR: MODEL NO. ___________________________ SERIAL NO. ___________________________________ ADDITIONAL ACCESSORIES _________...

Copyright 2009 Carrier Corp • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in Mexico Edition Date: 09/09 Catalog No: 40RU-03SI Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Pg CL-2 Replaces: New - - - - - - - - - - -...