Dometic KRA 450 X Handleiding
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KRA Refrigeration Systems
❖
INSTALLATION • OPERATION
Refrigeration Systems
Revised: 20190115
L-2091 ❖ English
Part Number: LP-17
2
❖
English
L-2091
Table of Contents
Refrigeration Systems • Introduction
Drawings and Diagrams .......................................................3
Refrigeration Basics ............................................................3
System Components ...........................................................3
Refrigerator/Freezer Boxes ..................................................4
Refrigeration Systems • Installation
Installation Procedures .......................................................5
Installing the Refrigeration Unit 5
Condensing Unit ..................................................................5
Evaporator ...........................................................................5
Constant Pressure Valve (CPV) and Linesets .....................5
Thermostatic Expansion Valve (TXV) Placement ................6
Dual Box Applications .........................................................6
Quick-Connect Fittings.........................................................6
Sight Glass/Moisture Indicator .............................................7
Thermostat ...........................................................................7
Refrigerant Charge ..............................................................7
Refrigeration Systems • Operation
KRA Refrigeration Start-Up Check List 8
Thermostat Operation ..........................................................8
Servicing Your Refrigeration System 9
Refrigerant ...........................................................................9
R-134a Tools ........................................................................9
Constant Pressure Valve (CPV) ...........................................9
Thermostatic Expansion Valve (TXV) ..................................9
Quick-Connect Fittings.........................................................9
Recharging the System 9
System Shutdown ................................................................9
Evacuate Refrigerant ...........................................................9
Charging the System .........................................................10
Setting the CPV .................................................................10
Adjusting the TXV ..............................................................10
Setting the Thermostat .......................................................11
Sight Glass ........................................................................11
Metering Device Replacement 11
CPV Replacement .............................................................11
TXV Replacement ..............................................................11
User Maintenance 11
Seawater System ..............................................................11
Defrosting ..........................................................................11
Winterizing the System ......................................................11
11
13
15
Troubleshooting Guide
BTU Guide - Refrigeration Loss/Gain Specs
Description of Figures
Product specificaties
| Merk: | Dometic |
| Categorie: | Koelkast |
| Model: | KRA 450 X |
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