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Table of Contents
Related Manuals for Carrier 38UQZ016
Summary of Contents for Carrier 38UQZ016
- Page 1 38UQZ 016-020-024 40ALZ 016-020-024 Split-System Air-to-Air Heat Pumps Carier is participating in the Eurovent Certification Programme. Products are as listed in the Eurovent Directory of Certified Products. Installation, Operation and Maintenance Instructions...
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Page 2: Table Of Contents
COntents stARt-UP CHeCK LIst ................................3 PHYsICAL DAtA ..................................4 eLeCtRICAL DAtA ................................... 4 DIMensIOns ....................................5 Service clearance ....................................7 Centre of gravity coordinates ................................8 Weight distribution ..................................9 FAn PeRFORMAnCe CURVes ............................. 10 PReLIMInARY CHeCKs ................................13 Check equipment received ................................ -
Page 3: Start-Up Check List
stARt-UP CHeCK LIst Start up date: ..............Equipment sold by: Contract No: ......................................Installed by: Contract No: ......................................... Site address: ............................................... Equipment type and serial No: 38UQZ ....................................40ALZ ....................................eLeCtRICAL DAtA: Supply voltage Ph 1: . Volts Ph : Volts Ph 3... -
Page 4: Physical Data
Table 1 - Physical data Indoor unit 40ALZ Outdoor unit 38UQZ Cooling capacity* 43.3 53.5 67.0 Heating capacity** 45.5 57.5 78.4 Refrigerant charge (R-407C)*** 7.8 x 2 8.4 x 2 12.8 x 2 Outdoor unit 38UQZ Weight Reciprocating Compressor Quantity Oil charge (each) Oil type POE-160 PZ... - Page 5 Liquid line connection, ø 5/8” Cable entry Main disconnect switch Control box Front access panel Side acces panel (both sides) Heat echangers Compressors Fans Plan view When designing an installation, always use up-to-date drawings, available from your local Carrier office.
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Page 6: Dimensions
Hot water coil connections (accessory/option) inlet See detail A Rear and left-side view Standard drain ø 23 Dimensions, mm 40ALZ 016, 020 2125 1815 2625 2315 When designing an installation, always use up-to-date drawings, available from your local Carrier office. -
Page 7: Service Clearance
Fig. 3 - Service clearance, mm 38UQZ 016-024 40ALZ (all sizes) Air filter removal Air filter removal Required service space for the removal of the air filter and the fans (in case of a breakdown). Clearance should be the same as the unit width. -
Page 8: Centre Of Gravity Coordinates
Fig. 4 - Centre of gravity coordinates (mm - approx.) 38UQZ 016-024 38UQZ 1060 1060 1070 Measured from point 40ALZ (all sizes) 40ALZ 1620 1625 1870 Measured from point... -
Page 9: Weight Distribution
Fig. 5 - Weight distribution (kg - approx.) 38UQZ 016-024 Point 38UQZ 40ALZ Point 40ALZ... -
Page 10: Fan Performance Curves
FAN PERFORMANCE CURVES 40ALZ 016 (standard) Air flow, l/s 40ALZ 016 (high-pressure option) Air flow, l/s Indoor fan speed Curve Pulley position Standard, r/s High-pressure option, r/s Closed 17.78 21.42 17.21 20.74 16.51 19.89 15.88 19.14 15.23 18.35 Factory setting 16.51 19.89... - Page 11 40ALZ 020 (standard) Air flow, l/s 40ALZ 020 (high-pressure option) Air flow, l/s Indoor fan speed Curve Pulley position Standard, r/s High-pressure option, r/s Closed 20.73 24.11 20.15 23.43 19.62 22.82 19.02 22.12 18.48 21.49 Factory setting 19.32 22.47...
- Page 12 40ALZ 024 (standard) Air flow, l/s 40ALZ 024 (high-pressure option) Air flow, l/s Indoor fan speed Curve Pulley position Standard, r/s High-pressure option, r/s Closed 20.42 23.67 19.91 23.08 19.37 22.45 18.87 21.87 18,28 21.19 Factory setting 18.28 21.19...
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Page 13: Preliminary Checks
Check the contents correspond to those listed on the deli- • The 40ALZ units are designed for ducted installation very note. Inform your nearest Carrier office if anything is (indoor air discharge). If ducts are not used the missing. To prevent loss or damage, do not remove the installer must place a protection grille in the discharge. -
Page 14: Unit Transport, Lifting And Handling
UNIT TRANSPORT, LIFTINg AND HANDLINg UNIT INSTALLATION 38UQZ outdoor units • Ensure the lifting and transport equipment used is able to support the unit weight (see Table 1). • When rigging, use spreaders to prevent damage to the Clearance between units, walls and other objects panels (see Figs. - Page 15 Fig. 9 - 38UQZ 016-024 Fig. 10 - 38UQZ 016-024 Return air Return air Return air Return air Return air PLAN VIEW • The air enters through three sides and is discharged through the top. Table 4 - Minimum clearances between units (mm) 38UQZ 016-024 Return air...
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Page 16: 40Alz Indoor Units
Fig. 11 Fig. 13 Unit Hexagonal nut Washer Flexible mounting Base Unit 100 mm Flexible mounting Concrete base Washer Spring washer • If this type of installation is used, ensure that the units Hexagonal nut are not affected by flooding, snow accumulation or PNL 40 x 40 x 4 PNU 80 x 45 x 6 leaves. - Page 17 Condensate drainage The units leave the factory with the air discharge set to hori- zontal. It can be changed to vertical discharge by following 40ALZ units are supplied with a condensate drain pan with the steps below. two drain pipes (outside diameter 3 mm). These tubes leave the factory separately wrapped so it is easy to check them.
- Page 18 Fig. 20 Ductwork The ductwork dimensions should be determined in accor- Motor support Setscrews dance with the air flow to be carried, and the available static pressure of the unit. The different air flows and power input values for each unit are shown in the fan performance curves. It is recommended to observe the following considerations: Motor pulley Whatever type of ductwork is used, it should not be...
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Page 19: Electrical Connections
• Operation of the unit on improper line voltage consti- tutes abuse and is not covered by the Carrier warranty. IMPORTANT: To ensure the correct unit power supply it is necessary first to determine the wire section. The unit electrical data (see Table 2 - Electrical Data) and the line length (max. -
Page 20: Refrigerant Line Connections
38UQZ Pipe leak tightness main disconnect switch. Do not exceed the power in Correct leak tests kW recommended by Carrier. Use correctly sized main Correct evacuation fuses and the new unit power supply cable section. If •... -
Page 21: Refrigerant Piping Design
Refrigerant piping design Depending on the unit installation, the piping design is as follows: The design and sizing of the pipe diameters depends on Outdoor unit above the indoor unit (Fig. 25) the unit location which can be: The most unfavourable gas line condition is during cooling Fig. - Page 22 suction or discharge line diameter selection (Figs. 29 and 30) • Calculate the equivalent length of: Vertical sections: length in metres of the straight Fig. 29 - Suction line diameter section pipe run plus the equivalent length of the accessories installed (elbows, siphons, etc.). Horizontal sections: length in metres of the actual pipe run plus the equivalent length of the accessories installed (elbows, etc.).
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Page 23: Refrigerant Charge
• Select a diameter and a velocity, and record the one ATTENTION: Before connecting the refrigerant lines shown in the specified design conditions for the suction carefully follow the steps below: or discharge line. • Remove the nitrogen holding charge from the refrige- rant circuits. -
Page 24: Oil Recharge
START-UP d) If, when the unit is run, symptoms of loss of charge (for example, low pressure switch tripping or abnormally low cooling capacities) are detected, first conduct a Necessary checks/precautions before start-up: leak test. For the latter all refrigerant must be removed •... -
Page 25: Unit Components
38UQZ can cause serious damage to the units and will void the unit control box. Carrier warranty. • High pressurestat: This protects the unit against excessive condensing pressure. -
Page 26: General Maintenance
Fig. 31 gENERAL MAINTENANCE ATTENTION: Before starting any servicing or maintenance operation on the unit, make sure that the power supply has been disconnected. A current discharge could cause personal injury. In order to obtain maximum performance from the unit special attention should be paid to the following points: •... -
Page 27: Compressor Replacement
Compressor replacement b) If you do not want to carry out the procedure de- scribed under (a), introduce an anti-acid substance NOTE: This operation must be done by a qualified into the refrigerant circuit, if the refrigerant line technician. length is short. It is also possible to install an anti-acid filter in the suction lines. -
Page 28: Final Recommendations
FINAL RECOMMENDATIONS IMPORTANT: All recommendations concerning unit installation are intended to be as a guideline. Qualified The unit you have purchased has undergone strict quality technicians or installers must carry out the installation control procedures before leaving the factory. correctly and in accordance with applicable local, national and European standards and with the design conditions.
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