GOETTL Air Conditioner Room (42) Manual 98090205

User Manual: GOETTL GOETTL Air Conditioner Room (42) Manual GOETTL Air Conditioner Room (42) Owner's Manual, GOETTL Air Conditioner Room (42) installation guides

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Installation & Operating Instructions
For
Air Conditioning Units
Manufactured By
GOETTL AIR CONDITIONING, INC.
P.O. Box 52029, Phoenix, Arizona 85072.2029
I=
II.
III.
IV.
v.
VI.
VII.
VIII.
IX.
PAGE
INTRODUCTION ............................................................ 1
DIMENSIONS ................................................................. 2
POWER SUPPLY & WIRING .......................................... 3
INSTALLATION ............................................................... 4
START UP/CHECK-OUT PROCEDURE ........................ 6
ELECTRICAL OPERATION ............................................ 6
RESISTANCE HEATE RS ............................................... 7
OPERATION AND MAINTENANCE ............................... 7
WIRING DIAGRAM ......................................................... 9
INSTALEAT!ON AND OPERATING..INSTRUCTION :..MANUAL
SC MODELS COOLING ONLY -1 1/2 - 51/2 TONS
Please take a few minutes to read ourinstructionsbefore youinstalland use your airconditioner. This
will help you obtain the full value from your air conditioner. It will also help you avoid any needless
service costs that result from causes we cannot control and cannot cover in our guarantee.
RULES FOR INSTALLATION AND SAFE OPERATION
1. Readthese rules andthe instructionscare- 4.
fully. Failure to follow the rules and the
instructions could cause a malfunction of 5.
the air conditioning unit resulting in injury,
death and/or property damage. 6.
2. Check your local codes and utility stan-
dards. The installation must comply with
their rules.
oShut off the electric power before making
connections on the unit or removing panels
for servicing. (There may be morethan one
disconnect).
Refer to Section VIII for maintenance pro-
cedures.
Do notoperate thisunitat outdoortempera-
tures below 60°F on cooling.
The components of an air conditioner may
have sharp edges or protrusions which can
cut you. The tubing and compressor con-
tain high pressure refrigerant. They must
not be exposed to high temperature or be
punctured. When installing or servicingthe
air conditioner, be extremely careful to
avoid injury.
The importance of proper installationcannot be overemphasized. The best designed unitwillappear
to operate poorly if installed improperly. Unlike the small appliance where quality of operation can
usually be determined as it leaves the factory, the performance of an air conditioner depends, to a
large extent, on its installation.
Problems always occur if the installer does not take precautions in the following areas:
Wire Size
Duct Size
Duct Openings
Duct Insulation
Refrigerant Gharge
- Inadequate wire sizes can cause an excessive voltage drop, causing the
compressor and fan motorsto operate at undesirably low voltage rates.
- Inadequate duct size, elbows, distributorsor registers can restrict air flow.
- Improperly sealed duct sections can cause considerable loss in cooling
capacity due to air leakages.
- Inadequate duct insulation in attic space will cause heat gain inthe system.
- Unit is precharged, but should a change be necessary, it should be verified
against the operating system pressures,temperatures, and current drawsas
specified in the catalog.
These air conditioners have proven their reliability over several decades. Years of research,
engineering and onlythe highestquality component partsand workmanshiphave gone intothese units
to make them the most reliablein the industry. Before a modelis released for production,it undergoes
abattery oftests in environmentaltest roomswith conditions of upto 120°F desert temperatures.
.ff
-1-
It is very important that the ducts for a self-
contained system be properly sized, installed,
sealed, and insulated for the best performance
ofthe system. It is recommended that boththe
supply and the return duct be insulated (2")
when installedinan unconditionedarea. Where
the supply duct is exposed to the outdoor
temperatures, vapor barrier material should be
used. All duct work should be installed in
accordance with ASHRAE or NAHB.
SC MODELS
Model
181F1
245F2
305F2
365F1
425F
485F
605F
662A
"See Rg.2
A B C D E F G H J
43 1/4 32 3/8 24 20 141/2 6 1 1 6 3/16
49 1/4 33 3/4 30 21 14 1/2 6 7 1 6 3/8
49 1/4 33 3/4 30 21 14 1/2 6 7 1 6 3/8
49"_/4" 33 3/4 30 21 20 1/2 6 1 1 6 3/8
49 1/4 33 3/4 30 21 17 9 3/8 1 1/8 1 6 3/8
57 3/4 44 3/8 30 1/4 32 16 1/4 10 1 1/4 1 6 3/16
57 3/4 44 3/8 30 1/4 32 16 1/4 10 1 1/4 1 6 3/16
57 3/4 44 3/8 34 1/4 _23 1/2 7 1 1 S 1/8
K L
1 1/2 2 1/2
1 1/2 2 1/2
1 1/2 2 1/2
1 1/2 2 1/2
11/2 2 1/2
2 23/4
2 23/4
1 3/4 2 3/4
-2-
2
t
I
i"J..L._ Lo
//OPTIONAL HirAm STRIP
LINI_ VOLTAGIr IrNTRANCE
Page 9 shows a typical wiring diagram for the
various units. However, each unit will have its
appropriate wiring diagram attached to the
access panel of the wiring control section. All
wiring and fusing must comply with local
and national electrical code requirements.
The 24 volt control circuit connections are
made at the right side of the panel (See figs. 1
and 2). The main power connections are made
at the =L" terminals of contractor, through
kr_ockoutin side of unit. These connections
must be tight and electrically secure. A fused
disconnect must be installed at the unit loca-
tion. When the unit is outdoors, the fused
disconnect must be weathertight. The fuse(s)
should be dual element type. Fuse and
ampacity ratings are listed in the table below
and also on the rating plate on the unit.
CAUTION: Unit must always be grounded Witha suitable ground connection.
ELECTRICAL DATA AT 230V
Compressor
OutdoorMotor
Indoor Motor .-
LockedRotor 1 Ph
Amps 3 Ph"
Rated Load 1Ph
Amps_ 3 Ph"
FullLoad 1Ph
Amps_ 3 Ph"
FullLoad 1Ph
_Ampsl 3 Ph"
MaximumFuseSize. Amps 1Ph
3Ph"
IPh.
Minimum Circuit Ampacily 3Ph"
' Bull on UL Om.'aling Condiliom. 4eOV u_l= a_lable m sl)ecml omW
48.0
9.0
1.3
m
1.2
20.0
13.8
m
60.0
11.5
1.3
1.3
25.0
17.0
72.5
13.5
1.3
1.4
30.0
19.8
w
88.0
77.0
16.0
10.3
2.0
104.0
88.0
17.9
12.5
1.9
2.0 1.9
2.4 3.1
2.4 3.1
40.0 45.0
25.0 30,0
24.4 27,4
17.3 20,6
129.0
99.0
23.7
13.5
1.9
1.9
3.3
3.3
55.0
35.0
34.9
22.1
169.0
123.0
25,0
18.0
1.8
1.8
4.0
-- "4.0
60.0
45.0
37,0
28.3
147.0
150.0
30.8
17,3
3.1
3.1
5.1
5.1
60.0
45.0
47.0
29.8
-3-
FILTER
ROOF MOUNTED
PACKAGED UNIT
__WALLS
TYPICAL ROOF MOUNTED INSTALLATION
This system is a completely self-contained
cooling unitwith all components in one cabinet.
It isshipped completely charged withthe proper
amount of refrigerant. The unit is ready for
operation after connecting duct work, conden-
sate drain and power supply. An adhesive
backed soft-foam weather strip or caulking
must be attached on the horizontal channel
between the supply and retum air openings as
shown on page 5. A condensate "p"trap must
be installed for every unit as shown also on
page 5.
LOCATION
Normally, the unit is installed outdoors either
on the roof or ground, where practical. In
normal roof installation, the unit is placed on an
angle iron frame and isolated from {he frame
with rubber, cork or spring mounts. These
mounts are to help eliminate vibration and
noise. Ground installationisbasicallythe same
for both self-contained units and split-system
outdoor units. Locate the unit on a concrete
slab or blocks not connected to the buildings
foundation. Allow adequate clearance for ser-
vice and air intake and discharge. The unit
mustbe level in order to assure proper conden-
sate drainage, and the gravity flow condensate
line should be a minimum of 3/4 inch I.D.
diameter and be properly graded.
The actual amount of total refrigerant charge
for each installation may have to be adjusted to
insure that unit performance characteristics
(compressor electrical current draw, suction
and discharge pressures) are consistent with
those given in the application tables for the
applicable ambient conditions.
-4-
_isextremely important thata condensate "P'_.... ?*_condensate trap will prevent the hot and humid
trap be Installed in the drain line below the outside air from being drawn into the condi-
bottom of the unit, as shown in the sketch tioned space through the drain line, thus
below, reducing cooling and dehumidification of
Apart from ensuring proper drainage, the the unit.
SUPPLY
SOFT-FOAM WEATHER STRIP
RETURN AIR
P" TRAP
SYSTEM DRAIN TRAP
-5-
PRELIMINARY START-UP
.If power to unit has been disconnected for
any extended period oftime, restorepower
twelve (12) hours prior to start-up proce-
dure.
COOUNG CYCLE CHECK-OUT
PROCEDURE
le With thermostat calling for cooling and set
10° below room temperature, engage dis-
connect switch(es) to start system.
2. Checkthe voltage atthe compressor motor
connections. If the voltage is 5% below or
10% above the rated voltage or there is a
difference greater than 3% between
phases, shut down the system and call the
power company. A failure to do so may
cause damage to the equipment.
3. After the unit is in operation, it will take
about 30 minutes running time to stabilize
•the system.
.In order to check for a properly working
system, it is recommended that a ther-
mometer be placed in the retum air and one
placed in the air supply. After all insulating
of ductwork and adjustments of air registers
are complete, a temperature difference of
15 ° to 20 ° is considered satisfactory.
5. When the above steps are completed, a
check of voltage and amperage should be
made of all motors. These readings should
be within 10% of the performance ratings
given for the specific ambients.
6. Suction and discharge pressures should
also be checked to ensure that they agree
reasonably well with the pressures shown
in the catalog for the prevailing ambient
conditions. Also, a suction superheat tem-
perature of 20°F plus or minus 5°F is com-
mon for these units when the outdoor am-
bient is approximately 95°F. This should be
used as a gauge in determining that the
system is not overcharged or has lost some
of its charge.
7. Finally, the thermostat should be checked
out to assure proper operation. Literature
packed with the thermostat and sub-base
will provide information for this check out.
With the disconnect on "ON" position, voltage
is supplied to the primary of the control trans-
former and crankcase heater. The control
transformer reduces the voltage from 230 or
208 to 24 volts for the low voltage and the
thermostat circuit. With a single-stage cool/
single-stageheat-thermostat set in the cooling
position, current is supplied from one side of
the 24 volt secondary of the control transformer
to the "R" terminal of the thermostat. The other
side of this transformer connects to the main
contractor coil through the high pre_ure con-
trol. When the thermostat calls for "COOL-
ING", current from the "R"terminal is switched
on to the "Y"terminal causing the compressor
contactorto be energized. The main contactor
closes the contacts in the high voltage circuit.
The completion ofthis circuitwill start both the
outdoor fan motor and the compressor.
The indoor fan relay which is internally wired
from"G"to"Y"inthe thermostatsub-base is also
energized and startsthe indoor fan motor. The
system will operate normally and begin to cool.
-6-
Resistance heaters are available as an op-
tional field-installed accessory for air condi-
tioners. Consult factory if resistance heaters
are needed, as a different thermostat or sub
base may be required.
.
.
Be sure the filter is clean. Inspect every 30
days of operation; if obstructed, clean or
replace filter at once. DO NOT RUN WITH-
OUT A FILTER.
Always let the thermostat control the
operation of the system. Never try to "sec-
ond guess" the thermostat, or tamper with
it. Just set the thermostat at the comfort
level desired AND LEAVE IT ALONE. If it
gets too chilly, just turn the thermostat
up a degree at a time untilthe desired level
is achieved. Don't turnthe thermostat back
and forth.
3. Air conditioners cannot cool off a house as
fast as a furnace heats it. It pulls the
temperature down slowly. Therefore, do
not turn on and expect immediate action. It
may take a day or so to pull down a hot,
moist house when the unit is first installed,
especially after it has been "soaked" in 100-
110 ° ambient for days.
4. Keep both the evaporator and condenser
coil surfaces clean. Accumulation of dirt
will restrict the air flow and reduce the
performance of your unit.
5. Keep condensate drain lines clear and
clean. All blower fan motors are factory
lubricated and require no attention. The
compressor is hermetically sealed, requir-
ing no attention.
6. Your new air conditioner is mounted out-
doors. It-i_ g'_od practice to treat it just as
you would your automobile if it was ex-
posed to the elements constantly; an occa-
sional coat of wax will give added protection
against the elements.
.
1
Your new air conditioner compressor is
equipped with a Permanent Split Capacitor
motor. Therefore, ALWAYS WAIT AT
LEAST THREE MINUTES AFTER SHUT-
TING UNIT OFF BEFORE TRYING TO
RESTART. If the unit is started before the
refrigerant pressures have a chance to bal-
ance, the compressor motor may trip on its
overload, or,invery rare cases, blowa fuse.
Under any normal operation, this will not
happen. It is most likely to happen if a
thermostat is chattering, or if the unit is
started too quickly. Do not be alarmed if
thishappens. Justletthe pressuresbalance
out and then start the unit.
It is a good practice when there is a power
outage, especially during severe thunder
storms, to switchoff your unitat the thermo-
stat until the electrical power has been
permanently restored. This could prolong
the life of your compressor.
IMPORTANT- READ CAREFULLY
.Your new air conditioner contains a special
compressor warming electrical circuit to
keep the compressor warm during long off
periods. Do not be alarmed if this creates a
light "humming" sound while the unit is not
running. The "hum" may or may not occur.
Whenever the power has been discon-
nected from the unit for Iong..erthan twelve
hours, be sure to turn the power back on
twelve hours before starting the unit. This
will give the compressor warming circuit a
chance to operate and protect the com-
pressor from damage.
-7-
HOW TO GET THE MAXIMUM PLEASURE _ ::: tUre isabout the same but there is discomfort.
FROM YOUR AIR CONDmONER This is because the humidity is high.
In order that you may fully enjoy the comfort
your Air Conditioner can bring you, an under-
standing of the basic principles involved are
outlined in the following paragraphs.
Indoors, the air should be both cool and rela-
tively dry for comfort. Therefore, the cooling
unit has been designed to remove both heat
and moisture.
HEATING LOAD:
Any residential cooling system is the reverse of
a heating system. Family living habits that help
the heating system hurt the cooling system.
The heat pump, furnace, or boiler delivers heat
into the rooms and the heat that is created
Within the house from electric lights, cooking,
the TV set, etc. helps to heat the rooms -
therefore, that much less heat is required from
the boiler, fumace, or heat pump.
Cooling is just the reverse. The cooling
equipment removes heat and humidity. Any
extra heat released into the rooms from these
same sources will make the room air warmer
and place an extra burden upon the equip
ment.
Let's take the heat caused by cooking. For
example, four top burners of a gas range can
produce more heat than a three horsepower air
conditioner can remove. It is much more
practical and economical to ventilate this con-
centrate heat and moisture load than it is to
dispose of itthrough your airconditioner. Here
is a general rule.
THERMOSTAT SETTING:
For cooling, a temperature of 75 to 78 degrees
is preferred by most people. You may select a
lower temperature setting if you wish and you
will probably have that temperature a good
portion of the time. But do not be disappointed
and condemn the equipment ifthe temperature
gets a few degrees warmer during hot weather.
Set the thermostat at the temperature agree-
able to the family and leave it there.
Do not be concemed if, in the evening, when
the outside temperature drops belowthe inside
temperature, your air conditioning system is
still running. The entire structure of your house
has been soaking up heat from the sun all day
long. After the sun has set there is still a
tremendous amount of heat in the walls, ceil-
ing, roof, furnishings, etc., that must be dis-
posed of before the air conditioner stops run-
ning. Outdoor temperatures can drop rapidly
after sundown, while the house and its fur-
nishings continue to give off heat for several
hours.
INDOOR BLOWER OPERATION
Wheneveryou planto have youroven or
range top burners on for more than few
minutes during hot weather, close off
the kitchen from the rest of the house,
open a window or outside door, andturn
on your kitchen ventilator.
You can also effectively reduce the load on
your cooling system by keeping window shades,
blinds, or drapes closed or by installing awnings
or canopies.
There are days when the temperature is rela-
tively high, yet it is comfortable because the air
is dry. This is because the relative humidity is
low. There are other days when the tempera-
To improve the efficiency of the unit, the blower
is operated on atime delay. Depending on the
outside ambient, the blower could delay start-
ing up for 5 to 15 seconds even though the
thermostat calls for cooling. When the ther-
mostat is satisfied, the blower could keep on
running for 1/2to 1-1/2 minutes longer. Do not
be alarmed if you do not hear..tbe blower
running immediately after the unit is switched
on.
Your unit is an Air Conditioner. It is producing
cooled air. The cooling which is accomplished
by means of remote controls, is completely
automatic, and requires no attention after set-
ting to the comfort level you desire.
-8-
TYPICAL AIR CONDITIONING SYSTEM WITH RESISTANCE HEATERS
"_____"
_ONNECTALJL POWER SOURCES
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DISCONNECT ALL POWER SOTJRC_
R£FOR_ SER_'ICING
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