i
Safety Precautions
GENERAL PRACTICES
1.
ALWAYS WEAR GOGGLES OR SAFETY
GLASSES. Refrigerant liquid, refrigeration oil, and
battery acid can permanently damage the eyes (see First
Aid under Refrigeration Oil).
2.
Never operate the unit with the compressor discharge
valve closed.
3.
Keep your hands, clothing and tools clear of the fans
and belts when the unit is running. This should also be
considered when opening and closing the compressor
service valves.
4.
Make sure gauge manifold hoses are in good condition.
Never let them come in contact with a belt, fan motor
pulley, or any hot surface.
5.
Never apply heat to a sealed refrigeration system or
container.
6.
Fluorocarbon refrigerants, in the presence of an open
flame or electrical short, produce toxic gases that are
severe respiratory irritants capable of causing death.
7.
Make sure all mounting bolts are tight and are of cor-
rect length for their particular application.
8.
Use extreme caution when drilling holes in the unit.
The holes may weaken structural components, and
holes drilled into electrical wiring can cause fire or
explosion.
9.
Use caution when working around exposed coil fins.
The fins can cause painful lacerations.
10. Use caution when working with a refrigerant or refrig-
eration system in any closed or confined area with a
limited air supply (for example, a truck box or garage).
Refrigerant tends to displace air and can cause oxygen
depletion resulting in suffocation and possible death.
11. In the USA, EPA Section 608 Certification is needed to
work on refrigeration systems.
REFRIGERANT
Although fluorocarbon refrigerants are classified as safe
refrigerants, certain precautions must be observed when
handling them or servicing a unit in which they are used.
When exposed to the atmosphere from the liquid state, fluo-
rocarbon refrigerants evaporator rapidly, freezing anything
they contact.
First Aid
In the event of frost bite, the objectives of First Aid are to
protect the frozen area from further injury, to warm the
affected area rapidly and to maintain respiration.
•
EYES: For contact with liquid, immediately flush eyes
with large amounts of water and get prompt medical
attention.
•
SKIN: Flush area with large amounts of lukewarm
water. Do not apply heat. Remove contaminated cloth-
ing and shoes. Wrap burns with dry, sterile, bulky
dressing to protect from infection/injury. Get medical
attention. Wash contaminated clothing before reuse.
•
INHALATION: Move victim to fresh air and use CPR
if necessary. Stay with victim until arrival of emer-
gency medical personnel.
REFRIGERATION OIL
Avoid refrigeration oil contact with the eyes. Avoid pro-
longed or repeated contact of refrigeration oil with skin or
clothing. Wash thoroughly after handling refrigeration oil to
prevent irritation.
First Aid
In case of eye contact, immediately flush with plenty of
water for at least 15 minutes. Wash skin with soap and
water. CALL A PHYSICIAN.
Summary of Contents for 914 724
Page 4: ......
Page 8: ......
Page 14: ...4...
Page 16: ...6...
Page 32: ...22...
Page 38: ...28...
Page 98: ...88...
Page 107: ...97 Model 10 and 20 Schematic Diagram...
Page 108: ...98 Model 10 Wiring Diagram...
Page 109: ...99 Model 20 Wiring Diagram...
Page 110: ...100 Model 20 Single Phase with Heat Option Schematic Diagram...