Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Carrier 38ZS/ZF
Summary of Contents for Carrier 38ZS/ZF
- Page 1 M A I N T E N A N C E I N ST R U C T I O N S Air-cooled condensing units with axial fan and free vertical discharge 38ZS/ZF Nominal cooling capacity 20 - 135 kW Nominal heating capacity 20 - 145 kW 50 Hz...
-
Page 3: Table Of Contents
CONTENTS 1 - INTRODUCTION ..............................5 2 - SAFETY ADVISE ..............................5 3 - OPERATION LIMITS............................6 4 - UNIT IDENTIFICATION ............................6 5 - TRANSPORT AND HANDLING ........................... 6 5.1 Transport ..............................6 5.2 Discharging of the unit ..........................6 5.3 Centre of gravity coordinates ........................ -
Page 5: Introduction
1 - INTRODUCTION The 38ZS/ZF range are air-cooled condensing units designed All of the units are tested and checked in the factory. for installation outdoors. They can be connected on-site with one The units comply with European Directives: direct expansion exchanger (or two in case of models 200 to 360). -
Page 6: Operation Limits
PSmax(BP\LP) Temp. Max./ IP Peso\Poids\Weight NoBo Maximum service pressure in the high pressure side (R-410A = 42 bar) CARRIER SCS Fabricante\Fabricant\Manufacturer: Route de Thil Compañía Industrial de Aplicaciones Térmicas, S.A. Maximum service pressure in the low pressure side 01122 Montluel-FRANCE P. -
Page 7: Centre Of Gravity Coordinates
1.127 units or to workers. These slings will be hooked or to the two grips screwed on 38ZS/ZF - 90 to 320 each crossbar. Make sure that the unit is protected from contact with the hooks to prevent damage to the housing. -
Page 8: Positioning And Installation
6 - POSITIONING AND INSTALLATION 6.1 Choice of location 6.2 Anchorage for silent-blocks When choosing the location, whatever may be the selected 38ZS/ZF - fashion, the following precautions have to be taken into 90 to 320 consideration: ● It is mandatory to comply with norm EN 378-3 on Safety and Environmental Requirements. -
Page 9: Recommended Service Clearance For Commissioning And Maintenance Operations (Mm)
6 - POSITIONING AND INSTALLATION 6.3 Recommended service clearance for commissioning and maintenance operations (mm) Unit not designed to have overhead obstruction. 38ZS/ZF - 90 to 320 38ZS/ZF - 360 to 600 6.4 Sound level These units are designed to work with a low acoustic level. In any case, the following must be taken into account for the design of the installation: the outdoor environment for acoustic radiation, the type of building for the noise transmitted by air, the solid elements for the transmission of vibrations. -
Page 10: Checking Before Commissioning
• CARRIERrtc Basic / Medium switched on until corrective measures have been taken. All 38ZS/ZF units have an electronic control: CARRIERrtc Basic (models 90 to 182) / CARRIERrtc Medium (models 200 Voltage phase imbalance (%) to 600) comprised of a control board and a TCO user terminal. - Page 11 7 - CHECKING BEFORE COMMISSIONING Connection chart with electronic control CARRIERrtc Basic / CARRIERrtc Medium Outdoor unit 38ZS/ZF Expansion Mixing exchager device (connected on-site) (optional) Indoor fan power supply Indoor fan thermal protection Supply T probe Power supply Return or ambient T probe (opt.) TCO user terminal Clogged filter detector (opt.)
- Page 12 7 - CHECKING BEFORE COMMISSIONING Connection chart with electronic control CARRIERrtc (optional) Outdoor unit 38ZS/ZF Expansion Mixing exchager device (connected on-site) (optional) Indoor fan power supply Indoor fan thermal protection Supply T probe Return T probe Power supply pGD1 terminal Clogged filter detector (opt.)
-
Page 13: Cooling Connections
Connection of the unit to the cooling lines For longer lenghts, up to 100 metres maximum, an oil separator must be user For the refrigerant lines, use only cooling type seamless tubes. 38ZS/ZF Under no circumstance use sanitary type copper pipe. outdoor unit Following these steps is recommended: ●... -
Page 14: Condensate Drain Connection
7 - CHECKING BEFORE COMMISSIONING 7.3 Condensate drain connection Pan in underpressure: Models 90 to 320 (coil in U) These units can optionally have an indoor condensate drain pan. ● Besides the above application, water must be suctioned from the pan because of the depression with respect to the motorfan The pan has a drain tube of outer diameter of 22 mm to which a assembly. -
Page 15: Safety Elements
8 - SAFETY ELEMENTS Low pressure pressostat Automatic switch in the control circuit When connected to the compressor suction, Magnetothermal switch that protects the operation circuit against it will stop its operation when the pressure continuous surges as well as against high currents of short at that point goes down below the tare value duration (short circuits). -
Page 16: Commissioning
(in models 38ZS/ZF - 90 to 320) or through the cooling circuit since it is located in the actual pipe (in models 38ZS/ZF - 360 Attention: the compressor crankcase heater must be put to 600). -
Page 17: Possible Problems At Commissioning
9 - COMMISSIONING ● Verify the absence of any leaks of the refrigerant. In case of The recording of these parameters whilst the unit is running a leak: allows controlling the installation performance and it is the best possible way to avoid breakdowns since the analysis of - Completely drain the refrigerant charge using a specifi... -
Page 18: Maintenance
RL 32CF, Mobil EAL Artic 22CC. 10.1 General recommendations The following table indicates the required volume: Safety instructions 38ZS/ZF ● Technicians working on the unit must wear the necessary Volume (I) 2 x 3,3 safety gear (e.g. gloves, eye protection, insulating clothing, safety shoes). -
Page 19: Servicing
10 - MAINTENANCE on chapter 9. ● Operators shall ensure that the unit is checked for leaks ad minima according to the following frequency: ● Check for corrosion on all metal surfaces (chassis, casing, exchangers, electric cabinet, etc.). • t CO2e < 5 ..not subjected ●... - Page 20 Do not put stress on the fi ns as they could deform. Note: models 38ZS/ZF - 90 to 320 with coil in U may incorporate a protection grille for the coil (optional). This grille is fi xed by modules in the holes made for this goal in the unit’s support.
-
Page 21: Control And Analysis Of Breakdowns
11 - CONTROL AND ANALYSIS OF BREAKDOWNS Symptom Cause Solution Evaporation pressure very high a) Charge excess a) Collect refrigerant in relation with the air inlet b) High air temperature b) Verify overheating c) Compressor suction not air tight c) Verify compressor state and replace d) Cycle reversing valve in middle position d) Check that the valve is not clogged. -
Page 22: Final Shutdown
12 - FINAL SHUTDOWN 12.1 Shutting down 12.4 Materials to be recovered for recycling Separate the units from their energy sources, allow them to cool ● Steel then drain them completely. ● Copper ● Aluminium 12.2 Recommendations for disassembly ● Plastics ●... - Page 24 Order No.: 10257, 07.2019. Supersedes order No.: 11.2017 Manufactured for CARRIER in Spain. Manufacturer reserves the right to change any product specifi cations without notice. Printed in the European Union.