INSTALLATION, OPERATION
& MAINTENANCE MANUAL
Horizontal/Side Discharge
Condensing Units
Models:
CMA18SB-1
CMA24SB-1
CMA30SB-1
CMA36SB-1
Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com
Horizontal/Side Discharge Condensing Units Heat Controller
Horizontal/Side Discharge Condensing Units:
Installation, Operation and Maintenance
TABLE OF CONTENTS
Safety Precautions ................................................................................................................... 3
General Operating Instructions................................................................................................. 4
General Product Information .................................................................................................... 5
Outdoor Unit Installation ........................................................................................................ 6-7
Unit Wiring ........................................................................................................................... 8-10
Wiring Diagrams .................................................................................................................. 8-10
Refrigerant Piping ................................................................................................................... 11
Leak Test, Evacuation & Release of Refrigerant .................................................................... 11
Initial Start-Up & Checks ........................................................................................................ 12
Field Charging ........................................................................................................................ 12
Field Inspection ...................................................................................................................... 12
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Heat Controller Horizontal/Side Discharge Condensing Units
SAFETY PRECAUTIONS
Please read this installation manual completely before installing the product.
If the power cord is damaged, replacement work shall be performed by authorized personnel only.
Installation work must be performed in accordance with all local and national codes by authorized
personnel only.
Contact an authorized service technician for repair, maintenance or installation of this unit.
All the pictures in the instructions are for explanation purposes only, and may differ from the actual
product you purchased.
The design and specifications are subject to change without prior notice for product improvement.
Consult with the sales agency or manufacturer for details.
The seriousness of safety precautions is classified by the following indications:
WA R NI NG
CA UT ION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property.
WAR N ING
1) Install according to this installation instructions strictly. If installation is defective, it will cause water
leakage, electrical shock fire, and may void the warranty.
2) Use the manufacturer’s specified and supplied parts only
3) Install in a strong and firm location which is able to withstand the unit’s weight. If the strength is
insufficient or installation is not properly done, the units can fall and cause injury.
4) For electrical work, follow all local
An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or a
defect found in electrical work, it may cause electrical shock or fire.
and National electrical codes and these installation instructions.
5) Use the specified cable, connect tightly and clamp the cable so that no external force will be acted
on the terminal. If connection is loose, it may cause excessive heat build up.
6) Wiring
cover is not fixed perfectly, it will cause heat build up at connection point of terminal, fire or electrical shock.
When carrying out piping connection, take care not to let air substances other than the specified
7)
refrigerant go into refrigeration circuit. Otherwise, it will cause lower capacity, abnormal high pressure
in the ref
routing must be properly arranged so that control board cover is fixed properly. If control board
rigeration cycle, explosion and injury.
8) Do not modify the length of the power supply cord or use an extension cord, and do not share the
single outlet with other electrical appliances. Otherwise, it may cause fire or electrical shock.
.
CAUTION
1) This equipment must be properly grounded and installed with and ground leakage current breaker,
otherwise it may cause
2) Do not install the unit in place where leakage of flammable gas may occur. If gas leaks and
accumulates near or surroundings the unit, it may cause fire.
3) Carry out drainage piping as mentioned in installation instructions. If drainage is not properly done,
water may enter the room and damage the furniture.
electrical shock.
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Horizontal/Side Discharge Condensing Units Heat Controller
OPERATING INSTRUCTIONS
Air conditioners are designed to provide comfort
cooling at outside temperatures above 65°F
(18°C) but less than 109°F (43°C). Operating the
air conditioner outside of this temperature range
may cause unit failure and will void the warranty.
If you have need for cooling at lower outdoor
temperatures a “low ambient cooling” can be eld
installed. Contact your local contractor or call the
factory.
TO OPERATE:
NOTE: The thermostat operation may vary
by type and model used. Please consult the
operating manual that was provided with
the thermostat. The instructions below are
generalized for most standard thermostat
models.
1. Set the switch on your wall thermostat to the
‘cool’ position.
2. Set the desired temperature (between 63-86°F
or 17-30°C) you want to maintain by moving the
temperature setting on your thermostat. If the
room is warmer than the setting, the unit will
turn on and begin to blow cool air after a few
minutes. A warm, humid room or building may
take several hours of continuous operation to
cool to the thermostat set point the rst time.
Once the set temperature is reached the unit
will cycle on and off.
3. Set the ‘Fan’ switch on the thermostat to ‘auto’
if you want the fan to run only when cooling
is needed or to ‘on’ if you want continuous
air circulation. The ‘on’ setting of the fan
generally provides better temperature control by
eliminating stagnant air.
NOTE: A properly installed and sized unit will
not cycle more than 10 times per hour. If you
notice more frequent starts call your service
contractor.
4. For energy conservation reasons, you may want
to set your thermostat at a higher temperature
when you are away. Do not raise the
temperature setting by more than 5 degrees.
Changing the temperature by more than 5
degrees or shutting the unit ‘off’ can actually
cost more than leaving the setting at a constant
temperature.
IMPORTANT
Wait at least 3 minutes after turning your air
conditioner off before trying to restart it. This
gives the unit the time needed to stabilize
before restarting. Failure to do so may cause
unit damage and failure.
MAINTENANCE:
Only simple periodic maintenance is required:
1. Change or clean the indoor unit air ler monthly
or more frequently if unusual conditions are
encountered. If you have a disposable type,
throw the old one away and install a fresh one
of the same size and type. If your unit has a
washable type then vacuum and wash with
soap and water. Flush thoroughly and dry
before re-installing.
2. Keep the coil in the outdoor unit clean.
Periodically ush the coil thoroughly with a
garden hose. Clean away all foreign materials
such as dust, leaves, grass clippings, papers,
etc.
WARNING
Turn the power off rst! Serious injury or death
may result if water spray is directed at live
electrical connections or power sources.
IMPORTANT!
Alterations and replacement parts:
Altering the product or replacing parts
with non-authorized parts will void the
factory Warranty and may result in adverse
operational performance and/or a possible
hazardous safety condition to service
personnel and occupants. If you are in doubt
as to how to service this unit or where to nd
factory replacement parts, call Heat Controller
at (517) 787-2100 for assistance.
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