Ideal Air 700875 User manual

IDEAL AIR
Portable Air Condioners
Models: 700870,700875,700877
SERVICE MANUAL

700870,700875,700877 SERVICE MANUAL
2 page
Portable Air Condioners
Table of Contents
GENERAL DESCRIPTION....................................................................................4
General air conditioning system
Portable air conditioning system
SPECIFICATIONS..................................................................................................5
Exterior Dimension Diagram
Technical Speciications
Characteristics
CONSTRUCTION...................................................................................................9
Internal Structure
REFRIGERANT SYSTEM CONSTRUCTION..................................................12
Compressor
Compressor lubrication
Condenser
Capillary Tube
Evaporator
Accumulator
ELECTRICAL SYSTEM.......................................................................................17
Circuit Diagram
Control panel
Program Setting
Controller Board
Control Speciications
Self-Diagnostic Codes
Compressor
Evaporator Fan Motor
Condenser Fan Motor
Capacitor
Molded Case Circuit Breaker
Magnetic Contact
Thermal Relay
Temperature Thermistor
Drain Tank Switch

page 3
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
ASSEMBLY...........................................................................................................32
Component parts
General Safety Information
Troubleshooting chart
DISASSEMBLY (For 700870).........................................................................36
Disassembly
Control panel removal
Electrical parts and relay board removal
Fan motor removal
DISASSEMBLY (For 700875,700877).........................................................43
Disassembly
Control panel removal
Electrical parts and relay board removal
Fan motor removal
REFRGERANT SYSTEM REPAIR....................................................................50
Brazing
Removal of Refrigerant System Components
Charging the System with R-410A Refrigerant
Refrigerant Charging Work

700870,700875,700877 SERVICE MANUAL
4 page
Portable Air Condioners
GENERAL DESCRIPTION
General air condioning system
1) convenonal air condioners cool the enre enclosed environment.
2) They act as “heat exchangers”, equiring an interior unit (evaporator) to blow
cool air into the interior and an exterior unit (condenser) to exhaust exchanged
heat to the outdoors.
Portable air condioning system
1) The 700870 / 700875 / 700877 is a spot
cooler which directs cool air to parcular
areas or objects.
2) The 700870 / 700875 / 700877 has the
following features.
3) The innovave design of the 700870
/ 700875 / 700877 has resulted in one
compact unit, replacing the need for two
separate units.
4) With the whole cooling system built into
one compact unit, the 700870 / 700875
/ 700877 requires no piping and can be
easily transported and installed.
5) The 700870 / 700875 / 700877 is eco-
nomical because it cools only the area or
objects which need to be cooled.
Condenser
Outdoor Unit
Evaporator
Indoor Unit
Intake air
(to Evaporator)
Intake air
(to Condenser)
Filter
Filter
Exhaust Hot Air
Cooling Air

page 5
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
SPECIFICATIONS
Exterior Dimension Diagram
<700870>
436.2 2.9
12.5
5.9
36.2
17.5 19.8
13.1
12
5.6
20

700870,700875,700877 SERVICE MANUAL
6 page
Portable Air Condioners
<700875>
22.1
17.3
16.3
7.87.1
4.8 36.4 5.6 1.9
16.3
5.9
42.1
20
24.4

page 7
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
<700877>
6.24.7 4.76.2
22.1
22.1
17.3
16.3
4.8 36.4 5.6
16.3
42.1
20
1.9
5.9
24.4

700870,700875,700877 SERVICE MANUAL
8 page
Portable Air Condioners
Technical Specificaons
Specifications Unit 700870 700875 700877
Cooling Capacity
Power Supply
Power Consumption
Rated Current
EER
Circuit Breaker Size
Nema Plug
Power Cord Gauge
Power Cord Length
13,200
Single
115
60
1,300
Toshiba
11.5 LG 10.9
8.6
15
5-15P
14
19,500 / 21,000
Single
208 / 230
60
2,300
11.0 / 10.0
8.9
15
6-15P
14
28,000 / 29,000
Single
208 / 230
60
3,100
15.0 / 14.0
9.3
20
6-20P
12
Btu/h
Phase
Volts
Hertz
Watts
Amps
Btu/Wh
Amps
Type
Awg
ft
Dimensions (W x H x D)
Weight (Net / Gross)
Condensate tank
No. of Cool Air Outlets
Ambient temperature range
Setting temperature (Room cool mode)
Setting temperature (Spot cool mode)
Application Area (Room cool mode)
Design Pressure - Hi/Low
Indoor Air Flow (High/Low)
Hot Air Duct Diameter
Maximum Duct Length
Refrigerant
Wheels
Safety Devices
10
3.17 (12)
1
64~113 (18~45)
64~86 (18~30)
32~86 (0~30)
377 (35)
R-410A
Toshiba
15.9 (451) LG 15.5 (440)
3.17 (12)
2
64~113 (18~45)
64~86 (18~30)
32~86 (0~30)
527 (50)
R-410A
42.3 (1200)
450 / 250
3.17 (12)
3
64~113 (18~45)
64~86 (18~30)
32~86 (0~30)
743 (70)
R-410A
39.9(1130)
450 / 280
4
76mm
12 (300)
16 (5)
4
102mm
16 (400)
30 (9)
4
102mm
16 (400)
30 (9)
17.5 x 54.9 x 19.9
(445 x 1395 x 505) 22.0 x 62 x 24.4 (560 x 1575 x 620) 22.0 x 62 x 24.4 (560 x 1575 x 620)
132 / 145.5
(60 / 66) 198 / 216 (90 / 98) 209 / 227 (95 / 103)
283 / 247
(480 / 420)
Toshiba
450 / 250 LG 450 / 270
512 / 477
(870 / 810) 583 / 547 (990 / 930)
66
In.(mm)
Lbs(kg)
Gallons(Liters)
Pcs
F( C)
F( C)
F( C)
ft²(m²)
Type
oz(g)
Psig
CFM(CMH)
pcs
diameter
In.(mm)
ft(m)
Compressor overload protector, Anti-freezing thermister, Full drain tank switch,
Autometic restart (Power interruption), Compressor time delay program,
High pressure switch
Features
* Specifications are subject to change without notice.
Temperature control, Self-diagnostic function, Two sppeds fan, Optional drain
pump kit, Washable filters, display
F( C)

page 9
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
Condenser
Condenser Motor
Evaporator
Cooling Air Duct
Condenser Air Outlet
Control Box
• Relay Board
• Capacitor
Drain Tank
Drain Tank Switch
Compressor
Locking Swivel Caster
Caster (Rear)
Eva Scroll
Control Panel
Evaporator Motor
CONSTRUCTION
Internal Structure
<700870>

700870,700875,700877 SERVICE MANUAL
10 page
Portable Air Condioners
Control Panel
Eva Scroll
Drain Tank
Drain Tank Switch
Condenser
Condenser Motor
Control Box
• Relay Board
• Capacitor
Caster (Rear)
Locking Swivel Caster
Compressor
Evaporator
Evaporator Motor
Cooling Air Duct
Condenser Air Outlet
<700875>

page 11
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
Control Panel
Eva Scroll
Drain Tank
Drain Tank Switch
Condenser
Condenser Motor
Control Box
• Relay Board
• Capacitor
Caster (Rear)
Locking Swivel Caster
Compressor
Evaporator
Evaporator Motor
Cooling Air Duct
Condenser Air Outlet
<700877>

700870,700875,700877 SERVICE MANUAL
12 page
Portable Air Condioners
REFRIGERANT SYSTEM CONSTRUCTION
<700870,700875,700877>
Flow of
Refrigerant
Condenser Air Outlet
Condenser Motor
Compressor
Accumulator
Evaporator Capillary tube
Drier
Condenser

page 13
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
Compressor
The construcon of a rotary type compressor is divided into two mechanisms;
the drive mechanism (compressor motor), and the compression mechanism
(compressor). When the rotor sha of the motor (drive mechanism) turns, the
roller (compression mechanism) rotates to compress the refrigerant.
To Condenser
Accumulator
Strainer
From Evaporator
Blade
Discharge Valve
Oil
Lubricator
Roller
Cylinder
Rotor
Stator
Terminal

700870,700875,700877 SERVICE MANUAL
14 page
Portable Air Condioners
Compressor operaon
1) Start of compression
1) The cylinder is filled with low pressure
gas.
2) Since pressure in the discharge cham-
ber is higher than in the cylinder, the
discharge valve is kept closed.
2) Sucon and compression
1) The pressure in the cylinder increases
gradually.
2) Refrigerant sucon begins on the suc-
on side of the cylinder.
3) The discharge valve remains closed.
3) Discharge
1) The pressure in the cylinder exceeds
that in the discharge chamber, and the
discharge valve opens.
2) On the sucon side, refrigerant suc-
on connues.
4) Compleon of compression
1) When compression is completed, all of
the refrigerant has been drawn from
the sucon chamber.
2) Operaon then returns to step 1)(Start
of compression) and the above pro-
cess of sucon and compression con-
nues repeatedly in succession.
Blade
Discharge
Valve
Roller
Blade
Discharge
Valve
Roller
Blade
Discharge
Valve
Roller
Blade
Discharge
Valve
Roller

page 15
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
Compressor lubricaon
The lubricaon system is comprised of a
hollow sha, an oil scraper mounted at
the end face, hollow sha, a sha journal
(sha bearing), and the lubricaon groove
for the sha journal.
The lubricaon groove is wider than the oil
hole. When the sha turns, oil is scraped
upward by the oil scraper along the inside
diameter of the hollow sha. The oil is fed
through the oil hole by centrifugal force,
then supplied to the lubricaon groove
for each sha journal, lubricang the
bearing.
In this lubricaon system, oil enters into
each bearing separately and returns to
the oil reservoir. This system effecvely
prevents bearing temperature increases,
and offers high reliability.
In addion, the specially treated sha journal keeps the bearing from being
damaged during high temperature operaon.
Condenser
1)The condenser is a heat exchanger with
Louver fins.
2)Heat is given off and absorbed by air
being pulled across the condenser fins
by the axial fan. The air is then expelled
through the condenser air outlet.
Oil Feed Groove
Oil Hole Oil Scrapper
Roller
Rotor
Cylinder
Hollow Sha Eccentric Sha

700870,700875,700877 SERVICE MANUAL
16 page
Portable Air Condioners
Capillary Tube
The capillary tube is a long thin tube
that ulizes line flow resistance as
an expansion valve. The length and
the inner diameter of the capillary
tube are determined according to
the capacity of the refrigeraon
system, operang condions, and
the amount of refrigerant. The high
pressure, high temperature liquid re-
frigerant sent from the condenser expands 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 becomes low and mist-like, and therefore evaporates
easily.
Evaporator
The evaporator is a heat exchanger covered with
slit fins. Heat is removed from the air being pulled
across the evaporator by the centrifugal fan.
The resulng cool air is expelled through the cooling
air ducts.
Accumulator
The accumulator is mounted on the sucon gas pip-
ing between the evaporator and the compressor.
The accumulator separates the liquid refrigerant
from the gas refrigerant, allowing only the gas refrig-
erant to enter the compressor. In the accumulator,
sucon gas isled into a cylindrical vessel where the
speed of the gas is decreased.
This process separates the refrigerant contained in
the gas by the force of gravity, causing the refrigerant to accumulate at the bot-
tom of the vessel. As a result, the compressor is protected from possible damage
caused by liquid refrigerant intake.
High Temp./High Pressure
Liquid Refrigerant
Low Temp./Low Pressure
Gas and Liquid Mixture
From Evaporator
To Compressor

page 17
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
ELECTRICAL SYSTEM
Circuit Diagram
<700870>
(TH1)
(TH2)
(TH3)
DRAIN
PUMP

700870,700875,700877 SERVICE MANUAL
18 page
Portable Air Condioners
<700875,700877>
(TH1)
(TH2)
(TH3)
DRAIN
PUMP

page 19
700870,700875,700877 SERVICE MANUAL Portable Air Condioners
Control panel
Before operang the unit, it is important to be familiar with the basic operaon
of the control panel.
1. POWER BUTTON
• Acvates unit when POWER BUTTON is pressed.
• Fan starts on low speed.
• If POWER BUTTON is pressed during operaon, unit stops.
2. BLOWER BUTTON
• Changes fan speed from LOW to HIGH when pressed.
3. SPOT / COOL BUTTON
• Acvates compressor and begins producing cool air 5 seconds aer
buon is pressed.
• Regulates temperature based on outlet cool air temperature.
4. ROOM / COOL BUTTON
• Acvates compressor and produces cool air 5 seconds aer buo n
is pressed.
• Regulates temperature based on inlet ambient air temperature.
1 2
5
3 4
6
87

700870,700875,700877 SERVICE MANUAL
20 page
Portable Air Condioners
5. SET TEMP BUTTON
• Change target temperature / data value by ± 1.
• Change data value by ± 10 by pressing connually.
• Press the SET TEMP BUTTONS to set temperature.
• Upper buon is to heighten temperature and Lower
buon is to lower temperature.
6. ALARM
• Alarm indicator light blinks and indicates abnormal
system operaon.
• If Alarm occurs, compressor stops.
• System operaon stops when ALARM light is acvated /
blinking longer than 3 minutes.
7. CURRENT TEMP
• Room cool mode displays current room temperature
in display in Fahrenheit.
• SPOT / COOL Mode displays outlet (cool air) temperature
during normal operaons.
• In order to change °F to °C, press SPOT / COOL and
ROOM / COOL buons together for 2 seconds.
• C will blink 2 mes and the figure will change to °C
• ALARM codes blink and are displayed when abnormal
operaon occurs.
8. TARGET TEMP
• Displays the unit set temperature for ROOM COOL mode only.
NOTE:The room temperature display range is from 14 °F to 122 °F.
(When displayed in “°C ” the range is from -10 °C to 50 °C)