Movincool CP14 Service Manual
SERVICE MANUAL
CLASSIC PLUS 14
DENSO SALES CALIFORNIA, INC.
REGISTERED TO ISO 9002
FILE NO. A5537
© 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.
DSCA P/N: LA990009-0379-E
(800) 264-9573 www.movincool.com
FOREWORD
This manual has been published to service the MovinCool Classic Plus 14. Please use this service manual only when
servicing the Classic Plus 14.
DEFINITION OF TERMS
WARNING: Describes precautions that should be observed in order to prevent injury to the user during installation or unit operation.
CAUTION: Describes precautions that should be observed in order to prevent damage to the unit or its components, which may occur during installation or unit operation if sufficient care is not 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 electrical personnel. Repair to electrical components by non-certified technicians may result in personal injury and/or damage to the unit. All
electrical components replaced must be genuine MovinCool, purchased from an authorized reseller.
• When handling refrigerant, always wear proper eye protection and do not allow the refrigerant to come in
contact with your skin.
• Do not expose refrigerant to an open flame.
• The proper electrical outlet for MovinCool units must be equipped with a “UL” approved ground-fault breaker
to prevent electrical shock from the unit.
• When brazing any tubing, always wear eye protection and work only in a well ventilated area.
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 2
CONDENSER
(OUTDOOR UNIT)
Conventional Air Conditioner
EVAPORATOR
(INDOOR UNIT)
Generally speaking, conventional air conditioners cool
the entire enclosed environment. They act as “heat
exchangers”, requiring an interior unit (evaporator) to
blow cool air into the interior and an exterior unit
(condenser) to exhaust exchanged heat to the outdoors. Unlike conventional air conditioners, the
MovinCool Spot Cooling System is a spot cooler which
directs cool air to particular areas or objects.
MovinCool Spot Cooling Systems have the following
features:
Air Flow of MovinCool Spot Cooling System
1. Compact Design
The innovative design of MovinCool has
resulted in one compact unit, replacing the
need for two separate units.
2. Easy Transportation and Installation
With the whole cooling system built into one
compact unit, MovinCool requires no piping
and can be easily transported and installed.
3. Energy Conservation
MovinCool is economical because it cools only
the area or objects which need to be cooled.
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 3
CONSTRUCTION, SPECIFICATIONS & DATA
Cool Air Duct
Exhaust Air Duct
Centrifugal Fan
Housing for
Condenser Fan
Condenser
Compressor
Capillary Tube
Caster with Brake
Drain Switch
Control Box
Caster
Construction of Classic Plus 14
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 4
CONSTRUCTION, SPECIFICATIONS & DATA
Cool Air Ducts
Evaporator
Drain Tank
Control Panel
Front Panel
Air Filter
(evaporator)
Evaporator Fan
Control Box
Upper Panel
Fan Motor
Side Panel
Condenser Fan
Air Filter(condenser)
Capillary Tube
Accumulator
Compressor
Air Filter (condenser)
Condenser
Construction Diagram
Power Cord
Casters
Base Panel
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 5
CONSTRUCTION, SPECIFICATIONS & DATA
1. Basic Construction
The MovinCool Spot Cooling System is
compact in construction because the condenser and the evaporator are enclosed in
one unit. The interior is divided into three
sections. The upper front face is equipped
with the evaporator, while the lower front face
contains the drain tank. The rear section
contains the condenser, the compressor and
the control box.
2. Air Flow
Air drawn from the right side face passes
through the condenser which extracts 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
Air Flow
blown through the cool air duct which can be
turned in any direction. All the air inlets are
equipped with filters, while the exhaust air duct
is protected by wire mesh.
3. Compressor and Fans
The compressor is hermetically sealed. A twospeed fan motor is used with two centrifugal
fans to draw air across the evaporator and
condenser.
4. Drain Tank
The capacity of the drain tank is 5.0 gallons
(19 liters). The unit is equipped with a "Tank
Full" LED and a device to automatically stop
the operation of the unit when the drain tank
reaches a level of approximately 4.0 gallons
(15 liters).
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 6
CONSTRUCTION, SPECIFICATIONS & DATA
Rating Conditions
dry bulb ...................................................................................................95oF (35oC)
wet bulb ..................................................................................................83oF (28.3 oC)
humidity .................................................................................................. (60%)
Specifications
power frequency .....................................................................................60Hz
line voltage ............................................................................................. single phase 115 V
power consumption ................................................................................1.41 Kw
current consumption ...............................................................................12.3 Amps
power factor ............................................................................................95%
starting current ....................................................................................... 32A
power wiring ........................................................................................... 14 (3-core) AWG
Cooling Unit
cooling capability ....................................................................................3,300 Kcal/hr
................................................................................................................ 13,200 BTU/hr
cooling system ....................................................................................... direct expansion
Blower
type of fan ...............................................................................................centrifugal fan
air volume: Evaporator (Hi speed) ......................................................... 470 ft3/min
Condenser (Hi speed) .......................................................... 882 ft3/min
motor output ...........................................................................................0.24 Kw (High)
................................................................................................................ 0.19 Kw (Low)
Compressor
type ........................................................................................................ rotary
output ..................................................................................................... 0.8 Kw
refrigerant type ....................................................................................... R-22
refrigerant capacity ................................................................................. 1.50 lbs (0.68 kg)
Safety Devices
compressor overload relay...................................................................... included
fan motor protector .................................................................................included
anti-freezing thermister ...........................................................................included
full drain tank switch ............................................................................... included
power interruption restart feature ........................................................... included
time delay feature ................................................................................... included
Dimensions & Weight
W x D x H ............................................................................................... 19.4" x 26.5" x 41.5"
............................................................................................................... 493 x 673 x 1054 (mm)
weight .................................................................................................... 165lbs (75kg)
Operating Conditions
inlet air (relative humidity) ...................................................................... 113oF (45 oC), < 50%
................................................................................................................ 70oF (21.1 oC), > 50%
Control Device
temperature control ................................................................................ included
two speed fan ......................................................................................... included
Specifications Specifications are subject to change without notice.
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 7
CONSTRUCTION, SPECIFICATIONS & DATA
26.5
21.1
Exterior Dimensions
16.6
12.5
19.4
37.7
3.8
41.5
2.8
20.6
25.6
2.2
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 8
@ 115V
40 50 60 70
Relative Humidity of Inlet Air (%)
6 (10.8)
8 (14.4)
10 (18.0)
12 (21.6)
14 (25.2)
Temperature ˚C (˚F)
Cool Air Temperature Difference Curve
25
(77)
30
(86)
35
(95)
40
(104)
30 (86)
25 (77)
35 (95)
40 (104)
45 (113)
Wet Bulb Temperature ˚C (˚F)
Dry Bulb Temperature ˚C (˚F)
Power Consumption (kW)
0.9
1.1
1.3
1.5
1.7
@ 115V
Power Consumption Curve
CONSTRUCTION, SPECIFICATIONS & DATA
4.0 (15.9)
3.6 (14.3)
3.2 (12.7)
kcal/h (BTU/h))
3
Cooling Capability
(x10
2.8 (11.1)
2.4 (9.5)
45 (113)
40 (104)
35 (95)
@ 115V
Dry Bulb Temperature ˚C (˚F)
30 (86)
25 (77)
15
(59)
20
(68)
Wet Bulb Temperature ˚C (˚F)
25
(77)
Cooling Capability Curve
30
(86)
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 9
REFRIGERANT SYSTEM
1. The component parts of the refrigerant system include the following:
• Accumulator • Capillary tube
• Compressor • Evaporator
• Condenser
These parts are all connected by copper tubing. All the connections have been brazed.
Condenser
Evaporator
Compressor
CAPILLARY
TUBE
Capillary Tube
Accumulator
REFRIGERANT
FLOW
CONDENSER
ACCUMULATOR
FAN
MOTOR
EVAPORATOR
Refrigerant System
COMPRESSOR
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 10
2. Compressor
The compressor used for the unit is hermetically sealed. The compressor and the compressor motor are in one casing.
A. Compressor Construction
The construction of a rotary type compressor is divided into two mechanisms the drive mechanism (compressor motor)
and the compression mechanism (compressor). When the rotor shaft of the
motor (drive mechanism) turns, the roller
of the compressor (compression mechanism) rotates to compress the refrigerant.
B. Basic Compressor Operation
The roller (compression mechanism) is set
eccentrically with a certain distance given
from the axis of the center of the cylinder.
A spring loaded blade is mounted on the
cylinder. The roller turns to compress the
refrigerant in the space between the
cylinder and eccentrically mounted roller.
REFRIGERANT SYSTEM
The blade is in contact with the roller by
means of spring force. It partitions the
space between the suction side and the
discharge side to keep compressed
refrigerant from returning to the suction
side.
There is no suction valve. The discharge
valve is designed not to open until the
pressure of the refrigerant within the
cylinder reaches or exceeds that of the
refrigerant on the discharge side. This
design prevents the backward flow of
discharge gas.
3. Condenser
The condenser is a heat exchanger with
copper tubes that are covered with thin
aluminum projections called spine fins. Heat
is given off and absorbed by air being pulled
across the condenser fins by the centrifugal
fan and then expelled through the exhaust air
duct.
Compressor Operation
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 11
REFRIGERANT SYSTEM
High Temp. / High Press.
Liquid Refrigerant
Low Temp. / Low Press.
Gas and Liquid Mixture
Capillary Tube
4. Capillary Tube
The capillary tube is a long thin tube utilizing
line flow resistance to serve as an expansion
valve. The length and the inner diameter of the
capillary tube are determined by to the capacity of refrigeration system, operating conditions, and the amount of refrigerant.
The capillary tube causes the high pressure,
high temperature liquid refrigerant sent from
the condenser to expand rapidly as the
refrigerant is sprayed out through the fixed
orifice in the capillary tube. As a result, the
temperature and state of the refrigerant
become low and mist-like respectively, causing it to evaporate easily.
5. Evaporator
The evaporator, like the condenser, is a heat
exchanger covered with spine fins. Heat is
removed from the air being pulled across the
evaporator by the centrifugal fan and the
resulting cool air is expelled through the cool
air ducts.
Accumulator
6. Accumulator
The accumulator is mounted on the suction
gas piping between the evaporator and the
compressor. The accumulator separates the
liquid refrigerant from the gas refrigerant letting only the gas refrigerant enter the
compressor. The construction of the accumulator is as shown. In the accumulator, suction
gas is led into a vessel having a cylindrical
body, and the gas speed is decreased inside
the vessel. This separates the refrigerant
contained in the gas by the force of gravity
causing it to accumulate at the bottom of the
vessel. This protects the compressor from
possible damage caused by the intake of
liquid refrigerant.
To Compressor
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 12
Condenser Inlet Pipe
REFRIGERANT SYSTEM
Evaporator
Inlet Pipe
Compressor
Discharge
Pipe
Condenser
Outlet
Pipe
Refrigerant System Piping
Compressor
Suction Pipe
(insulated)
Capillary Tube
Evaporator
Outlet Pipe
Connecting
Pipe (evaporator
to compressor)
Connecting
Tube (condenser
to capillary tube)
MOVINCOOL CLASSIC PLUS 14 SERVICE PAGE 13
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