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Movincool 24HFU, Руководство по обслуживанию

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SERVICE 

MANUAL

24HFU and 24HFU-1

DENSO SALES CALIFORNIA, INC.

REGISTERED TO ISO 9002

FILE NO. A5537

DSCA P/N: LA990009-0205-E

(800) 264-9573

www.movincool.com

© 2000 DENSO SALES CALIFORNIA, INC.

All rights reserved. This book may not be reproduced or copied, in whole or in part, without the written permission
of the publisher. DENSO SALES CALIFORNIA, INC. reserves the right to make changes without prior notice.
MovinCool is a registerd trademark of DENSO CORPORATION.

Содержание 24HFU

Страница 1: ...64 9573 www movincool com 2000 DENSO SALES CALIFORNIA INC All rights reserved This book may not be reproduced or copied in whole or in part without the written permission of the publisher DENSO SALES...

Страница 2: ...taken NOTE Provides additional information that facilitates installation or unit operation GENERAL PRECAUTIONS WARNINGS All electrical work if necessary should only be performed by qualified electrica...

Страница 3: ...oler which directs cool air to particular areas or objects MovinCool Spot Cooling Systems have the following features 1 1 Compact Design The innovative design of MovinCool has resulted in one compact...

Страница 4: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 4 CONSTRUCTION AND SPECIFICATIONS Construction of Models 24HFU 24HFU 1...

Страница 5: ...cts the heat This hot air is blown out through the upper exhaust air duct Air taken in from the front face is cooled by the evaporator and then blown through the cooling air duct which can be turned i...

Страница 6: ...aporator Air flow ________ ft3 min 706 706 Motor output ______________ Kw 0 55 0 55 Compressor Type Hermetic scroll Hermetic scroll Output ___________________ Kw 1 6 1 6 Refrigerant type R 22 R 22 Ref...

Страница 7: ...f the refrigerant system include the following Compressor Evaporator Condenser High pressure switch Capillary tube Modulating tank These parts are all connected by copper piping All the connections ha...

Страница 8: ...lute spiral which when matched with a mating scroll form generates a series of crescent shaped gas pockets between the two members During compression one scroll remains stationary fixed scroll while t...

Страница 9: ...ff the compressor may run backward for a moment or two until internal pressures equalize This has no effect on com pressor durability but may cause an unexpected sound after the compressor is turned o...

Страница 10: ...ough the cooling air ducts 3 5 Modulating Tank The modulating tank consists of a copper pipe and tank sections each being separated from the other The pipe connects to the evaporator outlet at one end...

Страница 11: ...rant System Piping Condenser Inlet Pipe Compressor Discharge Pipe Condenser Outlet Pipe Compressor Suction Pipe insulated Connecting Tube condenser to capillary tube Connecting Pipe evaporator to comp...

Страница 12: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 12 ELECTRICAL SYSTEM 24HFU Electrical System and Control Box for Model 24HFU 24HFU...

Страница 13: ...sition 2 Control Switch in FAN position a Current also flows through the control switch CS to the fan motor MF b Current flows through the contact termi nals 19 and 20 of the auxiliary relay and its c...

Страница 14: ...hen the high pressure becomes excessively high High pressure switch OFF When current flows across A and B terminals 11 and 12 13 and 14 15 and 16 19 and 20 conduct Specifications Rated Voltage AC 240V...

Страница 15: ...single phase motor and is contained within the same housing as the compressor Specifications Rated Voltage AC 230V Rated Output 1600 Watts NOTE An internal overload relay is used to protect the compre...

Страница 16: ...the auxiliary relay RX circuit the auxiliary relay contacts are turned off to break the compressor circuit and the fan motor circuit At the same time the contacts 1 3 are turned on to light the full t...

Страница 17: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 17 ELECTRICAL SYSTEM 24HFU 4 9 Wiring Wiring Diagram for Model 24HFU 24HFU...

Страница 18: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 18 ELECTRICAL SYSTEM 24HFU 1 Electrical System and Control Box for Model 24HFU 1 24HFU 1...

Страница 19: ...e control switch Specifications Rated Voltage AC 240V Rated Current 10 amps UL Listed File No E57520 4 2 Compressor Protection There is a time delay circuit included in the electrical system to preven...

Страница 20: ...an will restart automati cally The fan motor is independent from the time delay circuit which protects the compressor conse quently the fan will begin approximately 75 seconds before the compressor re...

Страница 21: ...a condensate tank which collects the water that forms on the evaporator during normal cooling operation If the unit is required to operate continuously without periodic emptying of this tank a condens...

Страница 22: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 22 ELECTRICAL SYSTEM 24HFU 1 Wiring Diagram for Model 24HFU 1 4 7 Wiring 24HFU 1...

Страница 23: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 23 DATA Exterior Dimensions of Models 24HFU 24HFU 1 24HFU...

Страница 24: ...lter Condenser Capillary Tube Service Panel Compressor Control Box Rear Panel Castor Castor Base Panel Control Switch Thermostat Front Panel Air Filter Evaporator Evaporator Drain Pan Drain Tube Condu...

Страница 25: ...U 24HFU 1 SERVICE PAGE 25 DATA Cooling Capability Curve 2 Power consumption curve Power Consumption Curve 5 1 Cooling Capability Characteristics 1 Cooling capability curve Models 24HFU 24HFU 1 Models...

Страница 26: ...MOVINCOOL 24HFU 24HFU 1 SERVICE PAGE 26 DATA Models 24HFU 24HFU 1 3 Cool air temperature difference curve Cool Air Temperature Difference Curve...

Страница 27: ...is fully drained The following chart is provided as a guide for categorized problem remedies Detailed information is contained in the OPERATION MANUAL supplied with the unit Abnormal 1 Loose compresso...

Страница 28: ...hat this service be performed by a qualified service technician Spine Fins 2 2 Examination of Operating Environment Operating environments will vary depending on location climate and surrounding condi...

Страница 29: ...rol Switch 11 Cooling air duct 2 Upper panel 12 Front panel 3 Right side panel 13 Blower housing evaporator 4 Air filter 14 Drain pan 5 Blower housing condenser 15 Left side panel 6 Condenser fan 16 D...

Страница 30: ...parts 1 Air filters 2 Cooling air ducts 3 Drain tank 4 Front panel 5 Rear panel 6 Rear service panel 7 Left side panel Removal of Panels B Disconnect the three lead wires of the power cord from the c...

Страница 31: ...4HFU 1 SERVICE PAGE 31 REPAIR DISASSEMBLY 3 2 Removal of Electrical Parts Wiring Diagram for Model 24HFU 24HFU 3 2 1 For Model 24HFU disconnect the electrical wiring from the components indicated in t...

Страница 32: ...24HFU 24HFU 1 SERVICE PAGE 32 REPAIR DISASSEMBLY 24HFU 1 Wiring Diagram for Model 24HFU 1 3 2 1 Continued For Model 24HFU 1 disconnect the electrical wiring from the components indicated in the diagr...

Страница 33: ...GE 33 REPAIR DISASSEMBLY 3 2 2 Remove the electrical parts in the control box Removal of Electrical Parts in the Control Box 3 2 3 Remove the control switch and full tank lamp as shown in figure Remov...

Страница 34: ...PAGE 34 REPAIR DISASSEMBLY 3 3 Removal of Blower Assembly 1 Condenser fan 5 Partition plate 2 Blower housing condenser 6 Evaporator fan 3 Fan motor 7 Blower housing evaporator 4 Motor bracket 8 Air f...

Страница 35: ...cted Also remove two screws which fasten the upper panel Then remove the blower housing condenser A NUT B SCREW Removal of Nut 3 3 3 Remove two nuts and two screws as depicted Then remove the motor br...

Страница 36: ...t or the meter reading fails to move from 0 replace the capacitor Inspection of Capacitor 4 1 Inspection of Auxiliary Relay Check for continuity across the terminals when the test button is depressed...

Страница 37: ...CF2 RX12 Inspection of Fan Motor Inspection of Compressor Motor 4 6 Inspection of Fan Motor Measure resistance across the terminals of the fan motor Terminals CF2 RX12 Approx 12 5 CF1 RX12 Approx 6 5...

Страница 38: ...n the test button is depressed and when test button is released Inspection of Compressor Relay 4 8 Inspection of Wiring Connection Refer to the Wiring Diagrams 3 2 1 pg 35 and 36 and check for connect...

Страница 39: ...conds continuity should exist between terminals 5 and 9 and 8 and 12 Delay time 75 15 seconds If continuity does not exist as specified replace the time delay relay 24HFU 1 Inspection of Time Delay Re...

Страница 40: ...to the right If continuity is not as specified replace the fan mode control switch Inspection of Fan Mode Control Switch 4 5 Inspection of Compressor Relay Check for continuity across the terminals w...

Страница 41: ...these factors will reduce effectiveness of brazing It is necessary to eliminate excess brazing filler metal using sand paper and by cleaning thoroughly with a solvent such as Trichlene 5 2 1 Proper Br...

Страница 42: ...itting as soon as the brazing filler metal has flown into the clearance Since the brazing filler metal flows easily into the portion heated to a proper temperature it is essential to keep the whole fi...

Страница 43: ...43 REPAIR INSPECTION AND REPAIR OF REFRIGERANT SYSTEM Refrigerant Cycle A C B E F D PART REPLACED DISCONNECT AT Compressor A B Condenser A C Capillary tube D E Evaporator E F Removal of Refrigerant C...

Страница 44: ...environment d Do not expose refrigerant to an open flame e Never smoke while performing repairs especially when handling refrigerant f Be careful the liquid refrigerant does not come in contact with...

Страница 45: ...rn to zero 2 If the gauge pointer returns gradually to zero there is a leak somewhere in the system this could also include gauge manifold Perform leak check according to procedure indicated in 5 3 4...

Страница 46: ...rging hose green from the refrigerant cylinder and connect it to the refriger ant recovery machine NOTE Keep the high pressure valve and the low pres sure valve of the gauge manifold closed 2 Using pr...

Страница 47: ...cylinder Charge the system with refrigerant to the specified amount Charging with Refrigerant Standard Amount of Refrigerant 29 9 oz 0 7 oz 1 87 lbs 850 g 20 0 g 0 0 0 0 If the system cannot be charge...

Страница 48: ...ers and nuts 6 2 Blower Assembly Install blower fans for evaporator and con denser Tightening torque 1 3 0 26 lb in 1 5 0 3kg cm NOTE After reassembling the gap between blower fan and housing should b...

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